diff --git a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.22-iccifort-2019.5.281.eb b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.22-iccifort-2019.5.281.eb
index 855e80e9b9da..29a1e735bcb9 100644
--- a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.22-iccifort-2019.5.281.eb
+++ b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.22-iccifort-2019.5.281.eb
@@ -16,10 +16,10 @@ checksums = [
     '05090efb306fc84d09f007a848ce0d0472f8633633b0a6eaf86ab075d092bc0d',  # ABRA2-2.22_fix-Makefile.patch
 ]
 
-builddependencies = [('Maven', '3.6.3', '', True)]
+builddependencies = [('Maven', '3.6.3', '', SYSTEM)]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('BWA', '0.7.17'),
 ]
 
diff --git a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-10.2.0.eb b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-10.2.0.eb
index f62a0b1e28b1..b06c4f9ab4d7 100644
--- a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-10.2.0.eb
+++ b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-10.2.0.eb
@@ -16,10 +16,10 @@ checksums = [
     '05090efb306fc84d09f007a848ce0d0472f8633633b0a6eaf86ab075d092bc0d',  # ABRA2-2.22_fix-Makefile.patch
 ]
 
-builddependencies = [('Maven', '3.6.3', '', True)]
+builddependencies = [('Maven', '3.6.3', '', SYSTEM)]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('BWA', '0.7.17'),
 ]
 
diff --git a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-9.3.0.eb b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-9.3.0.eb
index f93ab230e6b8..842e9e8cdfe5 100644
--- a/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-9.3.0.eb
+++ b/easybuild/easyconfigs/a/ABRA2/ABRA2-2.23-GCC-9.3.0.eb
@@ -16,10 +16,10 @@ checksums = [
     '05090efb306fc84d09f007a848ce0d0472f8633633b0a6eaf86ab075d092bc0d',  # ABRA2-2.22_fix-Makefile.patch
 ]
 
-builddependencies = [('Maven', '3.6.3', '', True)]
+builddependencies = [('Maven', '3.6.3', '', SYSTEM)]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('BWA', '0.7.17'),
 ]
 
diff --git a/easybuild/easyconfigs/a/AMPHORA2/AMPHORA2-20190730-gompi-2020b-Java-13-pthreads-avx2.eb b/easybuild/easyconfigs/a/AMPHORA2/AMPHORA2-20190730-gompi-2020b-Java-13-pthreads-avx2.eb
index c9a3002ee86d..176bd70202f3 100644
--- a/easybuild/easyconfigs/a/AMPHORA2/AMPHORA2-20190730-gompi-2020b-Java-13-pthreads-avx2.eb
+++ b/easybuild/easyconfigs/a/AMPHORA2/AMPHORA2-20190730-gompi-2020b-Java-13-pthreads-avx2.eb
@@ -21,7 +21,7 @@ checksums = ['2d361fcc2b800c3daaf25692988af6105669cba2ff513aba82f36089beb2839f']
 
 dependencies = [
     ('Perl', '5.32.0'),
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
     ('BioPerl', '1.7.8'),
     ('HMMER', '3.3.2'),
     ('EMBOSS', '6.6.0', local_javasuffix),
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.2.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.2.0-Java-11.eb
index 7f7064ef5190..740009f42a32 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.2.0-Java-11.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.35')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.3.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.3.0-Java-11.eb
index e1357bf2785d..dca4fd3a96b5 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-10.3.0-Java-11.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.36.1')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.2.0-Java-11.eb
index 05e3b23c3c88..10c24b2e952a 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.2.0-Java-11.eb
@@ -22,7 +22,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.37')]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.3.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.3.0-Java-11.eb
index 5c290512f99c..034e0e395662 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-11.3.0-Java-11.eb
@@ -22,7 +22,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.38')]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-7.3.0.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-7.3.0.eb
index 8b3f8a986070..89f841e46fa8 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-7.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.30')]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.2.0.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.2.0.eb
index 25422d7f57a1..d7596e6036d8 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.31.1')]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.3.0-Java-11.eb
index 492d77e6e4fa..a3ead0bb703f 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-8.3.0-Java-11.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.32')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-9.3.0-Java-11.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-9.3.0-Java-11.eb
index 39ff4c9c5dad..25632498de1b 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-9.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-GCCcore-9.3.0-Java-11.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.34')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2017b.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2017b.eb
index 10ff1403b096..12cc04a02e73 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2017b.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2017b.eb
@@ -19,7 +19,7 @@ checksums = [
     'd167d3248a03301bc93efcb37d5df959aae6794968e42231af0b0dd26d6a2e66',  # ANTLR-2.7.7_includes.patch
 ]
 
-dependencies = [('Java', '1.8.0_152', '', True)]
+dependencies = [('Java', '1.8.0_152', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018a-Python-2.7.14.eb
index 3a34a478986e..f1981196919c 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018a-Python-2.7.14.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('Python', '2.7.14'),
 ]
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018b.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018b.eb
index 867b9d56beb5..7bc127395693 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018b.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2018b.eb
@@ -19,7 +19,7 @@ checksums = [
     'd167d3248a03301bc93efcb37d5df959aae6794968e42231af0b0dd26d6a2e66',  # ANTLR-2.7.7_includes.patch
 ]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2019a.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2019a.eb
index ba4fd58a5735..51bebed49f88 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2019a.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-foss-2019a.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.31.1')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b-Python-2.7.14.eb
index 132b4a836cc0..408bb64f9512 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b-Python-2.7.14.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_152', '', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
     ('Python', '2.7.14'),
 ]
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b.eb
index ec6fe2656ce0..d0f5a966868c 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2017b.eb
@@ -19,7 +19,7 @@ checksums = [
     'd167d3248a03301bc93efcb37d5df959aae6794968e42231af0b0dd26d6a2e66',  # ANTLR-2.7.7_includes.patch
 ]
 
-dependencies = [('Java', '1.8.0_152', '', True)]
+dependencies = [('Java', '1.8.0_152', '', SYSTEM)]
 
 configopts = '--disable-examples --disable-csharp --disable-python'
 
diff --git a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2018a-Python-3.6.4.eb
index e1528a3b4617..39bdcb9da814 100644
--- a/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/a/ANTLR/ANTLR-2.7.7-intel-2018a-Python-3.6.4.eb
@@ -21,7 +21,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('Python', '3.6.4'),
 ]
 
diff --git a/easybuild/easyconfigs/a/ASAP/ASAP-2.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/a/ASAP/ASAP-2.0-foss-2021a-CUDA-11.3.1.eb
index 8ccff72840ba..4595800f99c3 100644
--- a/easybuild/easyconfigs/a/ASAP/ASAP-2.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/a/ASAP/ASAP-2.0-foss-2021a-CUDA-11.3.1.eb
@@ -29,7 +29,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Boost', '1.76.0'),
     ('Python', '3.9.5'),
     ('OpenCV', '4.5.3', '-CUDA-%(cudaver)s-contrib'),
diff --git a/easybuild/easyconfigs/a/ASTRID/ASTRID-2.2.1-gompi-2019a.eb b/easybuild/easyconfigs/a/ASTRID/ASTRID-2.2.1-gompi-2019a.eb
index ea1dba9f73d0..4a752357e25c 100644
--- a/easybuild/easyconfigs/a/ASTRID/ASTRID-2.2.1-gompi-2019a.eb
+++ b/easybuild/easyconfigs/a/ASTRID/ASTRID-2.2.1-gompi-2019a.eb
@@ -18,7 +18,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('phylokit', '1.0'),
     ('Boost', '1.70.0'),
 ]
diff --git a/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.1.2-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.1.2-foss-2021a-CUDA-11.3.1.eb
index 05ffdaeea4ed..7911a59e7683 100644
--- a/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.1.2-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.1.2-foss-2021a-CUDA-11.3.1.eb
@@ -17,7 +17,7 @@ builddependencies = [
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SciPy-bundle', '2021.05'),
     ('PyYAML', '5.4.1'),
     ('TensorFlow', '2.6.0', versionsuffix),
diff --git a/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.2.2-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.2.2-foss-2021a-CUDA-11.3.1.eb
index 3307a0c7c2b0..2ab59fb243c1 100644
--- a/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.2.2-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/a/AlphaFold/AlphaFold-2.2.2-foss-2021a-CUDA-11.3.1.eb
@@ -17,7 +17,7 @@ builddependencies = [
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SciPy-bundle', '2021.05'),
     ('PyYAML', '5.4.1'),
     ('TensorFlow', '2.6.0', versionsuffix),
diff --git a/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020a-AmberTools-20.15-Python-3.8.2.eb b/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020a-AmberTools-20.15-Python-3.8.2.eb
index 5a8159af3bb1..431f7a09b126 100644
--- a/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020a-AmberTools-20.15-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020a-AmberTools-20.15-Python-3.8.2.eb
@@ -42,7 +42,7 @@ dependencies = [
     ('bzip2', '1.0.8'),
     ('libreadline', '8.0'),
     ('matplotlib', '3.2.1', '-Python-%(pyver)s'),
-    ('NCCL', '2.8.3', '-CUDA-%(cudaver)s', True),
+    ('NCCL', '2.8.3', '-CUDA-%(cudaver)s', SYSTEM),
     ('netCDF-Fortran', '4.5.2'),
     ('netCDF', '4.7.4'),
     ('Perl', '5.30.2'),
diff --git a/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020b-AmberTools-21.3.eb b/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020b-AmberTools-21.3.eb
index fc45e8660c56..638decc861e1 100644
--- a/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020b-AmberTools-21.3.eb
+++ b/easybuild/easyconfigs/a/Amber/Amber-20.11-fosscuda-2020b-AmberTools-21.3.eb
@@ -53,7 +53,7 @@ dependencies = [
     ('PnetCDF', '1.12.2'),
     ('Tkinter', '3.8.6'),
     ('X11', '20201008'),
-    ('NCCL', '2.8.3', '-CUDA-%(cudaver)s', True),
+    ('NCCL', '2.8.3', '-CUDA-%(cudaver)s', SYSTEM),
 ]
 
 # Some CUDA tests differs from expected results
diff --git a/easybuild/easyconfigs/a/AmrPlusPlus/AmrPlusPlus-2.0-20200114-GCC-8.3.0.eb b/easybuild/easyconfigs/a/AmrPlusPlus/AmrPlusPlus-2.0-20200114-GCC-8.3.0.eb
index c2864dc231d3..6cdb4f111e70 100644
--- a/easybuild/easyconfigs/a/AmrPlusPlus/AmrPlusPlus-2.0-20200114-GCC-8.3.0.eb
+++ b/easybuild/easyconfigs/a/AmrPlusPlus/AmrPlusPlus-2.0-20200114-GCC-8.3.0.eb
@@ -32,11 +32,11 @@ sources = [{
 checksums = ['04af67517b752e15b5add27f4584f8c11293a0ed1353d3c1dd60c3c6e2dcb329']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('BWA', '0.7.17'),
-    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', True),
+    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', SYSTEM),
     ('SAMtools', '1.10'),
-    ('Nextflow', '19.12.0', '', True),
+    ('Nextflow', '19.12.0', '', SYSTEM),
 ]
 
 local_exe_files = [
diff --git a/easybuild/easyconfigs/a/ArrayFire/ArrayFire-3.6.4-foss-2018b-CUDA-9.2.88.eb b/easybuild/easyconfigs/a/ArrayFire/ArrayFire-3.6.4-foss-2018b-CUDA-9.2.88.eb
index 8549e0140055..7efc990a6871 100644
--- a/easybuild/easyconfigs/a/ArrayFire/ArrayFire-3.6.4-foss-2018b-CUDA-9.2.88.eb
+++ b/easybuild/easyconfigs/a/ArrayFire/ArrayFire-3.6.4-foss-2018b-CUDA-9.2.88.eb
@@ -29,7 +29,7 @@ builddependencies = [
 
 dependencies = [
     ('Boost', '1.67.0'),
-    ('CUDA', local_cudaver, '', True),
+    ('CUDA', local_cudaver, '', SYSTEM),
 ]
 
 separate_build_dir = True
diff --git a/easybuild/easyconfigs/a/AutoDock-GPU/AutoDock-GPU-1.5.3-GCC-10.3.0-CUDA-11.3.1.eb b/easybuild/easyconfigs/a/AutoDock-GPU/AutoDock-GPU-1.5.3-GCC-10.3.0-CUDA-11.3.1.eb
index 90e04c1f06b1..7998e273f4c1 100644
--- a/easybuild/easyconfigs/a/AutoDock-GPU/AutoDock-GPU-1.5.3-GCC-10.3.0-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/a/AutoDock-GPU/AutoDock-GPU-1.5.3-GCC-10.3.0-CUDA-11.3.1.eb
@@ -21,7 +21,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['6557df95eed99323befddcef6b8da8b67eba22476efccd1e69a87ffdf075e5f4']
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 parallel = 1
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-4.9.2.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-4.9.2.eb
index d2c6124a0ad3..fed83b82ecb5 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-4.9.2.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-4.9.2.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.17')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.3.0.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.3.0.eb
index 7d84000783a7..029fc124736e 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.3.0.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.3.0.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.18')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.4.0.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.4.0.eb
index b0b5d3dc3516..76f7bbb3a51d 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-5.4.0.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.18')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.1.0.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.1.0.eb
index 47f11e88e4cc..acd3e293abef 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.1.0.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.1.0.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.17')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.2.0.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.2.0.eb
index 0d4d4fbba393..f8696b70aa84 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.2.0.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.2.0.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.17')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.3.0.eb b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.3.0.eb
index 56c44c440ee0..8c7c17b17672 100644
--- a/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/a/Autoconf/Autoconf-2.69-GCCcore-6.3.0.eb
@@ -19,7 +19,7 @@ checksums = ['954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969']
 dependencies = [('M4', '1.4.18')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["bin/%s" % x for x in ["autoconf", "autoheader", "autom4te", "autoreconf", "autoscan",
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-4.9.2.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-4.9.2.eb
index d469fdb58f59..263e4f8bb5ed 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-4.9.2.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-4.9.2.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.3.0.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.3.0.eb
index 9d0d0b21a790..a2333fa888f8 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.3.0.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.3.0.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.4.0.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.4.0.eb
index 3ee3bf9adf71..b62e65b94105 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-5.4.0.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.1.0.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.1.0.eb
index 1b4be92da39c..c36cbe68b6af 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.1.0.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.1.0.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.2.0.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.2.0.eb
index c8c1c5b5d607..d0a1c8377554 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.2.0.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.2.0.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.3.0.eb b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.3.0.eb
index e447b6af5a2a..8ba57370da32 100644
--- a/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/a/Automake/Automake-1.15-GCCcore-6.3.0.eb
@@ -31,7 +31,7 @@ checksums = [
 dependencies = [('Autoconf', '2.69')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/automake', 'bin/aclocal'],
diff --git a/easybuild/easyconfigs/a/ant/ant-1.10.1-Java-1.8.eb b/easybuild/easyconfigs/a/ant/ant-1.10.1-Java-1.8.eb
index 1ffd386831a6..ed1e72fae99d 100644
--- a/easybuild/easyconfigs/a/ant/ant-1.10.1-Java-1.8.eb
+++ b/easybuild/easyconfigs/a/ant/ant-1.10.1-Java-1.8.eb
@@ -17,7 +17,7 @@ sources = ['apache-%(name)s-%(version)s-src.tar.gz']
 checksums = ['68f7ced0aa15d1f9f672f23d67c86deaf728e9576936313cfbff4f7a0e6ce382']
 
 # specify dependency on Java/1.8 "wrapper", rather than a specific Java version
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 builddependencies = [('JUnit', '4.12', versionsuffix)]
 
diff --git a/easybuild/easyconfigs/a/arcasHLA/arcasHLA-0.2.0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/a/arcasHLA/arcasHLA-0.2.0-foss-2019b-Python-3.7.4.eb
index bc81df834205..816d044d50fd 100644
--- a/easybuild/easyconfigs/a/arcasHLA/arcasHLA-0.2.0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/a/arcasHLA/arcasHLA-0.2.0-foss-2019b-Python-3.7.4.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('SAMtools', '1.10'),
     ('pigz', '2.4'),
     ('git', '2.23.0', '-nodocs'),
-    ('git-lfs', '2.11.0', '', True),
+    ('git-lfs', '2.11.0', '', SYSTEM),
 ]
 
 # Download and install the reference database (1.8 GB)
diff --git a/easybuild/easyconfigs/a/aria2/aria2-1.35.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/a/aria2/aria2-1.35.0-GCCcore-10.3.0.eb
index 341a8dd97ca0..c0280bde061a 100644
--- a/easybuild/easyconfigs/a/aria2/aria2-1.35.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/a/aria2/aria2-1.35.0-GCCcore-10.3.0.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('libxml2', '2.9.10'),
     ('SQLite', '3.35.4'),
     ('c-ares', '1.17.2'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--without-gnutls --with-openssl --enable-libaria2 --enable-static"
diff --git a/easybuild/easyconfigs/a/aria2/aria2-1.36.0-GCCcore-11.3.0.eb b/easybuild/easyconfigs/a/aria2/aria2-1.36.0-GCCcore-11.3.0.eb
index 591b1cbcd469..baafaf4f5e32 100644
--- a/easybuild/easyconfigs/a/aria2/aria2-1.36.0-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/a/aria2/aria2-1.36.0-GCCcore-11.3.0.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('libxml2', '2.9.13'),
     ('SQLite', '3.38.3'),
     ('c-ares', '1.18.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--without-gnutls --with-openssl --enable-libaria2 --enable-static"
diff --git a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019a.eb b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019a.eb
index b598e539cc1b..25065d06f056 100644
--- a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019a.eb
+++ b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019a.eb
@@ -20,7 +20,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Eigen', '3.3.7', '', True)
+    ('Eigen', '3.3.7', '', SYSTEM)
 ]
 
 preconfigopts = "sh bootstrap && "
diff --git a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019b.eb b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019b.eb
index be0c9d7deddb..69babe0c5eae 100644
--- a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019b.eb
+++ b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-foss-2019b.eb
@@ -20,7 +20,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Eigen', '3.3.7', '', True)
+    ('Eigen', '3.3.7', '', SYSTEM)
 ]
 
 preconfigopts = "sh bootstrap && "
diff --git a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-intel-2019b.eb b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-intel-2019b.eb
index e60710e4b020..f262b1d4d67d 100644
--- a/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-intel-2019b.eb
+++ b/easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.7.0-intel-2019b.eb
@@ -24,7 +24,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Eigen', '3.3.7', '', True)
+    ('Eigen', '3.3.7', '', SYSTEM)
 ]
 
 separate_build_dir = True
diff --git a/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2020.04.13-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2020.04.13-foss-2018b-Python-3.6.6.eb
index 574183e62e3d..6a4cd8d698af 100644
--- a/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2020.04.13-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2020.04.13-foss-2018b-Python-3.6.6.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('Biopython', '1.72', versionsuffix),
     ('Pysam', '0.15.1', versionsuffix),
     ('BWA', '0.7.17'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('minimap2', '2.13'),
     ('SAMtools', '1.9'),
     ('MUSCLE', '3.8.31'),
@@ -33,8 +33,8 @@ dependencies = [
     ('python-parasail', '1.1.16', versionsuffix),
     ('PhyML', '3.3.20190321'),
     ('nodejs', '12.16.1'),
-    ('goalign', '0.3.2', '', True),
-    ('gotree', '0.4.0', '', True),
+    ('goalign', '0.3.2', '', SYSTEM),
+    ('gotree', '0.4.0', '', SYSTEM),
     ('rampart', '1.2.0rc3', versionsuffix),
     ('libdeflate', '1.5'),
     ('nanopolish', '0.13.1', versionsuffix),
diff --git a/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2021.06.24-foss-2020b.eb b/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2021.06.24-foss-2020b.eb
index c4995246973b..80e2cc8068d8 100644
--- a/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2021.06.24-foss-2020b.eb
+++ b/easybuild/easyconfigs/a/artic-ncov2019/artic-ncov2019-2021.06.24-foss-2020b.eb
@@ -33,8 +33,8 @@ dependencies = [
     ('python-parasail', '1.2.4'),
     ('PhyML', '3.3.20200621'),
     ('nodejs', '12.19.0'),
-    ('goalign', '0.3.2', '', True),
-    ('gotree', '0.4.0', '', True),
+    ('goalign', '0.3.2', '', SYSTEM),
+    ('gotree', '0.4.0', '', SYSTEM),
     ('rampart', '1.2.0'),
     ('libdeflate', '1.7'),
     ('nanopolish', '0.13.3'),
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-37.93-foss-2018a.eb b/easybuild/easyconfigs/b/BBMap/BBMap-37.93-foss-2018a.eb
index eeb78bfbdb94..53aeebfca89a 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-37.93-foss-2018a.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-37.93-foss-2018a.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['21be384f8535094b8b4695134b0b132863e6599811b8ea2d311960b7ba88df8f']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-37.93-intel-2018a.eb b/easybuild/easyconfigs/b/BBMap/BBMap-37.93-intel-2018a.eb
index 4c2ee3855a46..c5b17a83ed9a 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-37.93-intel-2018a.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-37.93-intel-2018a.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['21be384f8535094b8b4695134b0b132863e6599811b8ea2d311960b7ba88df8f']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.26-foss-2018b.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.26-foss-2018b.eb
index 350359097a1a..f8bdee8c9432 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.26-foss-2018b.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.26-foss-2018b.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['e439709d6d294aae5938cb253c8640f8e0dfeb227d5b01ce17c37e9871a458b4']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.50b-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.50b-GCC-8.2.0-2.31.1.eb
index 0c565ba0482a..1e4f8b426cff 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.50b-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.50b-GCC-8.2.0-2.31.1.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['b3b8eefc2e32d035fb7c1732048dca81e367a7e5e43416c993c88683fc19ade7']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.76-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.76-GCC-8.2.0-2.31.1.eb
index a3018663e1ce..1356c84ed940 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.76-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.76-GCC-8.2.0-2.31.1.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['4f6e3c6a3b56c8514ddcd9e2bebe0f2c89698b16f3af9f52916f55d2a59f406b']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.79-GCC-8.3.0.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.79-GCC-8.3.0.eb
index 90bb802ed784..d0cb1b445ca3 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.79-GCC-8.3.0.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.79-GCC-8.3.0.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['72891105b6d3e190b5b1d60fb964077a997cf5d2647c472b213a6dd46e1ca07c']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.87-iccifort-2020.1.217.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.87-iccifort-2020.1.217.eb
index 980626868d98..772b81bc3128 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.87-iccifort-2020.1.217.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.87-iccifort-2020.1.217.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['22ab642b8af88faf208a56763158da895004c5231df572d3163ce52fbfb63240']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-10.2.0.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-10.2.0.eb
index 94e6c8540fe8..d0f16e3b3bdc 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-10.2.0.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-10.2.0.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['a366531c566da5e7246ccf707b6770a92246c1cfe29fd30dc2d800c0d82269f1']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-9.3.0.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-9.3.0.eb
index 6d1053ec36a4..45b3f610c87b 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-9.3.0.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.90-GCC-9.3.0.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['a366531c566da5e7246ccf707b6770a92246c1cfe29fd30dc2d800c0d82269f1']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.96-GCC-10.3.0.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.96-GCC-10.3.0.eb
index d3215416acf7..9088c7a0387b 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.96-GCC-10.3.0.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.96-GCC-10.3.0.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['18d9c89b02c0ab044b2795a65f6236b2262a494ed83d27e31750437b350ef080']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BBMap/BBMap-38.98-GCC-11.2.0.eb b/easybuild/easyconfigs/b/BBMap/BBMap-38.98-GCC-11.2.0.eb
index e2bd5bd40756..d439a3560c19 100644
--- a/easybuild/easyconfigs/b/BBMap/BBMap-38.98-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/b/BBMap/BBMap-38.98-GCC-11.2.0.eb
@@ -12,7 +12,7 @@ source_urls = [SOURCEFORGE_SOURCE]
 sources = ['%(name)s_%(version)s.tar.gz']
 checksums = ['cdc3b8e0530c4a83a728d28da31f0e7ead2bc233d4bf21cd1916572c9b2d0e0e']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 prebuildopts = 'cd jni && '
 
diff --git a/easybuild/easyconfigs/b/BLT/BLT-20181223-GCCcore-11.2.0.eb b/easybuild/easyconfigs/b/BLT/BLT-20181223-GCCcore-11.2.0.eb
index 3d71f64de88d..19c368807ef9 100644
--- a/easybuild/easyconfigs/b/BLT/BLT-20181223-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/b/BLT/BLT-20181223-GCCcore-11.2.0.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('freetype', '2.11.0'),
     ('expat', '2.4.1'),
     ('SQLite', '3.36'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-tcl=$EBROOTTCL --with-tk=$EBROOTTK --enable-shared'
diff --git a/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.2-intel-2019a.eb b/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.2-intel-2019a.eb
index 6b33d7c53c60..9f70e27003e4 100644
--- a/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.2-intel-2019a.eb
+++ b/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.2-intel-2019a.eb
@@ -19,7 +19,7 @@ dependencies = [
     ('GeneMark-ET', '4.38'),
     ('BamTools', '2.5.1'),
     ('SAMtools', '1.9'),
-    ('GenomeThreader', '1.7.1', '-Linux_x86_64-64bit', True),
+    ('GenomeThreader', '1.7.1', '-Linux_x86_64-64bit', SYSTEM),
     ('spaln', '2.3.3c'),
     ('Exonerate', '2.4.0'),
     ('BLAST+', '2.9.0'),
diff --git a/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.5-intel-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.5-intel-2019b-Python-3.7.4.eb
index e356a0da97b7..33487e8713ef 100644
--- a/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.5-intel-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/b/BRAKER/BRAKER-2.1.5-intel-2019b-Python-3.7.4.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('GeneMark-ET', '4.57'),
     ('BamTools', '2.5.1'),
     ('SAMtools', '1.10'),
-    ('GenomeThreader', '1.7.3', '-Linux_x86_64-64bit', True),
+    ('GenomeThreader', '1.7.3', '-Linux_x86_64-64bit', SYSTEM),
     ('spaln', '2.4.03'),
     ('Exonerate', '2.4.0'),
     ('BLAST+', '2.9.0'),
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.10.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.10.0-GCCcore-6.4.0.eb
index 76b9371ed08f..d2534be82acc 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.10.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.10.0-GCCcore-6.4.0.eb
@@ -16,6 +16,6 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.11.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.11.0-GCCcore-6.4.0.eb
index 5829b4dc01c6..ee1d80794765 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.11.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.11.0-GCCcore-6.4.0.eb
@@ -12,6 +12,6 @@ sources = ['%(namelower)s-%(version)s-dist.zip']
 checksums = ['abfeccc94728cb46be8dbb3507a23ccffbacef9fbda96a977ef4ea8d6ab0d384']
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.11.1-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.11.1-GCCcore-6.4.0.eb
index 7d06a6a61a7b..6f59179f3cd6 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.11.1-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.11.1-GCCcore-6.4.0.eb
@@ -12,6 +12,6 @@ sources = ['%(namelower)s-%(version)s-dist.zip']
 checksums = ['e8d762bcc01566fa50952c8028e95cfbe7545a39b8ceb3a0d0d6df33b25b333f']
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.12.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.12.0-GCCcore-6.4.0.eb
index ba628d6babe6..2596352a994d 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.12.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.12.0-GCCcore-6.4.0.eb
@@ -12,6 +12,6 @@ sources = ['%(namelower)s-%(version)s-dist.zip']
 checksums = ['3b3e7dc76d145046fdc78db7cac9a82bc8939d3b291e53a7ce85315feb827754']
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-6.4.0.eb
index 9553e22d089d..8215c28cdfca 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-6.4.0.eb
@@ -16,6 +16,6 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-7.3.0.eb
index d60955083005..953788521610 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.16.0-GCCcore-7.3.0.eb
@@ -16,6 +16,6 @@ checksums = [
 ]
 
 builddependencies = [('binutils', '2.30')]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.18.0-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.18.0-GCCcore-7.3.0.eb
index 088dbc8deb5a..d7273df067bb 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.18.0-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.18.0-GCCcore-7.3.0.eb
@@ -21,7 +21,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-7.3.0.eb
index c98144ae9a18..5fd1011783fb 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-7.3.0.eb
@@ -21,7 +21,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-8.2.0.eb
index 72f11b4ee5bd..59d5f18e87fa 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.20.0-GCCcore-8.2.0.eb
@@ -20,6 +20,6 @@ builddependencies = [
     ('Python', '3.7.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.25.2-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.25.2-GCCcore-8.2.0.eb
index 5de849076399..74f98e271dd2 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.25.2-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.25.2-GCCcore-8.2.0.eb
@@ -21,6 +21,6 @@ builddependencies = [
     ('Python', '3.7.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.2.0.eb
index 62c429057101..9a23b9129786 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.2.0.eb
@@ -21,6 +21,6 @@ builddependencies = [
     ('Python', '3.7.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.3.0.eb
index bf9db9bef970..b6becac4ae43 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.26.1-GCCcore-8.3.0.eb
@@ -21,6 +21,6 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.2.0.eb
index 699ad4853c39..da42845ee5c1 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.2.0.eb
@@ -26,6 +26,6 @@ builddependencies = [
     ('Python', '3.7.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.3.0.eb
index 720da63a770b..a859c64611ed 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-8.3.0.eb
@@ -26,6 +26,6 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-9.3.0-Java-1.8.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-9.3.0-Java-1.8.eb
index 9544908a761a..4a205b4f676a 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-9.3.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.29.1-GCCcore-9.3.0-Java-1.8.eb
@@ -27,6 +27,6 @@ builddependencies = [
     ('Python', '3.8.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-0.7.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-0.7.0-GCCcore-6.4.0.eb
index 386939c61831..279f3636e1bf 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-0.7.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-0.7.0-GCCcore-6.4.0.eb
@@ -12,6 +12,6 @@ sources = ['%(namelower)s-%(version)s-dist.zip']
 checksums = ['a084a9c5d843e2343bf3f319154a48abe3d35d52feb0ad45dec427a1c4ffc416']
 
 builddependencies = [('binutils', '2.28')]
-dependencies = [('Java', '1.8.0_152', '', True)]
+dependencies = [('Java', '1.8.0_152', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-1.1.0-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-1.1.0-GCCcore-8.3.0.eb
index 52fd06b9233f..8ed77b68a9ba 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-1.1.0-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-1.1.0-GCCcore-8.3.0.eb
@@ -25,6 +25,6 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-10.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-10.2.0.eb
index 64cebdfa53f0..3c49531cee4a 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-10.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Python', '3.8.6'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-8.3.0.eb
index 106e2146849f..1a5d8224c028 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-2.0.0-GCCcore-8.3.0.eb
@@ -20,6 +20,6 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.4.1-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.4.1-GCCcore-8.3.0.eb
index fd6d2288410c..54da4a210b65 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.4.1-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.4.1-GCCcore-8.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.6.0-GCCcore-9.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.6.0-GCCcore-9.3.0.eb
index 386bdf9a4c8e..6daf4172fefd 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.6.0-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.6.0-GCCcore-9.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Python', '3.8.2'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.1-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.1-GCCcore-8.3.0.eb
index 1088865bda98..2877264df722 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.1-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.1-GCCcore-8.3.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('Python', '3.7.4'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.2.0.eb
index 6b259a49b41c..f5408193257e 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.2.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('Python', '3.8.6'),
     ('Zip', '3.0'),
 ]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.3.0.eb
index 32ed844cbb5a..aecd7128568d 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-10.3.0.eb
@@ -28,7 +28,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 runtest = True
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-11.2.0.eb
index 8c61b1cbe835..76adb8a37b4c 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-11.2.0.eb
@@ -29,7 +29,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = "-- //examples/cpp:hello-success_test //examples/py/... //examples/py_native:test //examples/shell/..."
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-8.3.0.eb
index c72ee0d0455a..ddadf77aa93d 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-3.7.2-GCCcore-8.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
     ('Zip', '3.0'),
     ('UnZip', '6.0'),
 ]
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 runtest = True
 testopts = ' '.join([
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-4.2.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-4.2.2-GCCcore-11.2.0.eb
index 0a321f837b95..8680e49eb468 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-4.2.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-4.2.2-GCCcore-11.2.0.eb
@@ -35,7 +35,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = "-- //examples/cpp:hello-success_test //examples/py/... //examples/py_native:test //examples/shell/..."
diff --git a/easybuild/easyconfigs/b/Bazel/Bazel-5.1.1-GCCcore-11.3.0.eb b/easybuild/easyconfigs/b/Bazel/Bazel-5.1.1-GCCcore-11.3.0.eb
index 793f0a2c12ff..2550749a0593 100644
--- a/easybuild/easyconfigs/b/Bazel/Bazel-5.1.1-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/b/Bazel/Bazel-5.1.1-GCCcore-11.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
     ('Zip', '3.0'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 runtest = True
 testopts = "-- //examples/cpp:hello-success_test //examples/py/... //examples/py_native:test //examples/shell/..."
diff --git a/easybuild/easyconfigs/b/Beast/Beast-2.6.7-GCC-10.3.0.eb b/easybuild/easyconfigs/b/Beast/Beast-2.6.7-GCC-10.3.0.eb
index 10b75ac34ee8..8f2c406f4242 100644
--- a/easybuild/easyconfigs/b/Beast/Beast-2.6.7-GCC-10.3.0.eb
+++ b/easybuild/easyconfigs/b/Beast/Beast-2.6.7-GCC-10.3.0.eb
@@ -18,7 +18,7 @@ sources = ['BEAST.v%(version)s.Linux.tgz']
 checksums = ['05dcc619c2e10163f2c1089ec66149f6e53ec5a0583cd2cb8ffdccbbdb1d8183']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # this is not mandatory but beagle-lib is recommended by developers
     ('beagle-lib', '3.1.2'),
 ]
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.2-binutils-2.25.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.2-binutils-2.25.eb
index 9fe7a6ae5b3e..8176cae55eb8 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.2-binutils-2.25.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.2-binutils-2.25.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.3-binutils-2.25.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.3-binutils-2.25.eb
index ac0a67174d31..0768a39fbc4b 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.3-binutils-2.25.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-4.9.3-binutils-2.25.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-5.1.0-binutils-2.25.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-5.1.0-binutils-2.25.eb
index ef2c714b6090..8a0e19818202 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-5.1.0-binutils-2.25.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCC-5.1.0-binutils-2.25.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.2.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.2.eb
index 60fefc39bf59..a06558cc2cb0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.2.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.2.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.3.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.3.eb
index d968d2c56be1..79f087545084 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.3.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.3.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.4.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.4.eb
index 01ec53eafb98..cd8a216a60e2 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.4.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-4.9.4.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.25', '', True),
+    ('binutils', '2.25', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.3.0.eb
index 0fc748e278ba..2703ab539079 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.4.0.eb
index 82200e98744e..585c3a2730af 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.4.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.5.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.5.0.eb
index 61b101b4d57e..ab8762d3b910 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-5.5.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.1.0.eb
index dab8d891914d..0294b6dc75ec 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.2.0.eb
index da4efd77c4ac..fc56131f50f0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.17'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.3.0.eb
index 5a746f361879..5b4b26b3b8a0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.4.0.eb
index cd56e251253c..0c3cd2396026 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-6.4.0.eb
@@ -24,7 +24,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.1.0.eb
index cfb4a2fcbf0f..e43482d5649d 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.2.0.eb
index 0e32b008b265..ce7fec7fcfae 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.29', '', True),
+    ('binutils', '2.29', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.3.0.eb
index ec463c45cfa5..2de144d05ab3 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-7.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-8.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-8.1.0.eb
index d0e9458243eb..6ed65c27da2c 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.4-GCCcore-8.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-5.5.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-5.5.0.eb
index a9e1ab6bf9fe..5209b761d925 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-5.5.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.3.0.eb
index 0dfdab7a31f7..4043ac56cd33 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.4.0.eb
index e7ec07802236..db24b4bf3949 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-6.4.0.eb
@@ -20,7 +20,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.2.0.eb
index b38f9eaef5ae..966f9bd8f1e8 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.29', '', True),
+    ('binutils', '2.29', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.3.0.eb
index 957290a803b5..eb4866bb1580 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-7.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.1.0.eb
index ec067261a208..65af1da859e0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.1.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.2.0.eb
index 56d6cbacbbff..35c51fb65f24 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.0.5-GCCcore-8.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['cd399d2bee33afa712bac4b1f4434e20379e9b4099bce47189e09a7675a2d566']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.2.2-GCCcore-7.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.2.2-GCCcore-7.4.0.eb
index 89abd0d346fa..fcc092af430f 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.2.2-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.2.2-GCCcore-7.4.0.eb
@@ -16,7 +16,7 @@ checksums = ['3ffd2201041c6c56064b4bdad4dfb8959751efbefa823775242b4f32aa37786c']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.2.0.eb
index e6731677f867..93c8a305b46c 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['0fda1d034185397430eb7b0c9e140fb37e02fbfc53b90252fa5575e382b6dbd1']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.3.0.eb
index d6c005dfb357..cea2cb041fc6 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['0fda1d034185397430eb7b0c9e140fb37e02fbfc53b90252fa5575e382b6dbd1']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.4.0.eb
index 2530ede83d4b..a9eb850d760c 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-8.4.0.eb
@@ -16,7 +16,7 @@ checksums = ['0fda1d034185397430eb7b0c9e140fb37e02fbfc53b90252fa5575e382b6dbd1']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.1.0.eb
index b46a869bd63f..0fb633083da5 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.1.0.eb
@@ -16,7 +16,7 @@ checksums = ['0fda1d034185397430eb7b0c9e140fb37e02fbfc53b90252fa5575e382b6dbd1']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.2.0.eb
index 5193a9f616f2..358a90c1322a 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.3.2-GCCcore-9.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['0fda1d034185397430eb7b0c9e140fb37e02fbfc53b90252fa5575e382b6dbd1']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-10.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-10.2.0.eb
index c20e3f3948d5..7924ce69695d 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-10.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['34e201d963156618a0ea5bc87220f660a1e08403dd3c7c7903d4f38db3f40039']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.35', '', True),
+    ('binutils', '2.35', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-9.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-9.3.0.eb
index 2da53fce904f..f9deb82e85d1 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.5.3-GCCcore-9.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['34e201d963156618a0ea5bc87220f660a1e08403dd3c7c7903d4f38db3f40039']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.6.1-GCCcore-10.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.6.1-GCCcore-10.1.0.eb
index b30667a94173..adb0912d13d7 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.6.1-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.6.1-GCCcore-10.1.0.eb
@@ -16,7 +16,7 @@ checksums = ['1120f8bfe2cc13e5e1e3f671dc41b1a535ca5a75a70d5b349c19da9d4389f74d']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.7.1-GCCcore-10.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.7.1-GCCcore-10.2.0.eb
index 55d04ef9b9dd..8edc3c84d84d 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.7.1-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.7.1-GCCcore-10.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['1dd952839cf0d5a8178c691eeae40dc48fa50d18dcce648b1ad9ae0195367d13']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.35', '', True),
+    ('binutils', '2.35', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-10.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-10.3.0.eb
index 8c2f16803282..1b290ba82b44 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-10.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['69dc0bb46ea8fc307d4ca1e0b61c8c355eb207d0b0c69f4f8462328e74d7b9ea']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.1.0.eb
index d5ee76339b35..6add8cb09417 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.1.0.eb
@@ -16,7 +16,7 @@ checksums = ['69dc0bb46ea8fc307d4ca1e0b61c8c355eb207d0b0c69f4f8462328e74d7b9ea']
 builddependencies = [
     ('M4', '1.4.18'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.2.0.eb
index c272626ed8ff..2f5f0c2547d0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-11.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['69dc0bb46ea8fc307d4ca1e0b61c8c355eb207d0b0c69f4f8462328e74d7b9ea']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.37', '', True),
+    ('binutils', '2.37', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-9.4.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-9.4.0.eb
index 7b61d615084b..e5d42bae0656 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.7.6-GCCcore-9.4.0.eb
@@ -16,7 +16,7 @@ checksums = ['69dc0bb46ea8fc307d4ca1e0b61c8c355eb207d0b0c69f4f8462328e74d7b9ea']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb
index 4ec9c1c877b0..51a53e9d6fa2 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.1.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.1.0.eb
index 88bd7102234e..d87bb83ccc50 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.1.0.eb
@@ -16,7 +16,7 @@ checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.2.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.2.0.eb
index 4c8dc227e189..adcb9e42b3c0 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-12.2.0.eb
@@ -16,7 +16,7 @@ checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.39', '', True),
+    ('binutils', '2.39', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-9.5.0.eb b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-9.5.0.eb
index 56c2cc38d825..82a5c2763dfc 100644
--- a/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/b/Bison/Bison-3.8.2-GCCcore-9.5.0.eb
@@ -16,7 +16,7 @@ checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
 builddependencies = [
     ('M4', '1.4.19'),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/b/Blender/Blender-2.79b-foss-2018b-Python-3.6.6-CUDA-9.2.88.eb b/easybuild/easyconfigs/b/Blender/Blender-2.79b-foss-2018b-Python-3.6.6-CUDA-9.2.88.eb
index 8b80ac71ba2d..f85a0804f2a1 100644
--- a/easybuild/easyconfigs/b/Blender/Blender-2.79b-foss-2018b-Python-3.6.6-CUDA-9.2.88.eb
+++ b/easybuild/easyconfigs/b/Blender/Blender-2.79b-foss-2018b-Python-3.6.6-CUDA-9.2.88.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('libGLU', '9.0.0'),
     ('OpenColorIO', '1.1.0'),  # for advanced color management
     ('OpenImageIO', '1.8.16'),  # required for cycles render engine
-    ('CUDA', local_cuda_ver, '', True),
+    ('CUDA', local_cuda_ver, '', SYSTEM),
 ]
 
 builddependencies = [('CMake', '3.12.1')]
diff --git a/easybuild/easyconfigs/b/bcgTree/bcgTree-1.0.10-intel-2018a-Perl-5.26.1.eb b/easybuild/easyconfigs/b/bcgTree/bcgTree-1.0.10-intel-2018a-Perl-5.26.1.eb
index 616d4405ec03..19bf7119f782 100644
--- a/easybuild/easyconfigs/b/bcgTree/bcgTree-1.0.10-intel-2018a-Perl-5.26.1.eb
+++ b/easybuild/easyconfigs/b/bcgTree/bcgTree-1.0.10-intel-2018a-Perl-5.26.1.eb
@@ -17,7 +17,7 @@ dependencies = [
     ('Perl', '5.26.1'),
     ('HMMER', '3.1b2'),
     ('MUSCLE', '3.8.31'),
-    ('Gblocks', '0.91b', '', True),
+    ('Gblocks', '0.91b', '', SYSTEM),
     ('RAxML', '8.2.11', '-hybrid-avx2'),
 ]
 
diff --git a/easybuild/easyconfigs/b/bcgTree/bcgTree-1.1.0-intel-2018b-Perl-5.28.0.eb b/easybuild/easyconfigs/b/bcgTree/bcgTree-1.1.0-intel-2018b-Perl-5.28.0.eb
index 4f4b36135213..374d15e26a66 100644
--- a/easybuild/easyconfigs/b/bcgTree/bcgTree-1.1.0-intel-2018b-Perl-5.28.0.eb
+++ b/easybuild/easyconfigs/b/bcgTree/bcgTree-1.1.0-intel-2018b-Perl-5.28.0.eb
@@ -17,7 +17,7 @@ dependencies = [
     ('Perl', '5.28.0'),
     ('HMMER', '3.2.1'),
     ('MUSCLE', '3.8.31'),
-    ('Gblocks', '0.91b', '', True),
+    ('Gblocks', '0.91b', '', SYSTEM),
     ('RAxML', '8.2.12', '-hybrid-avx2'),
 ]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-2.1.2-foss-2017a.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-2.1.2-foss-2017a.eb
index 88be4437d436..f69171cc6806 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-2.1.2-foss-2017a.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-2.1.2-foss-2017a.eb
@@ -13,7 +13,7 @@ source_urls = ['https://github.com/beagle-dev/beagle-lib/archive/']
 sources = ['beagle_release_%s.tar.gz' % version.replace('.', '_')]
 checksums = ['82ff13f4e7d7bffab6352e4551dfa13afabf82bff54ea5761d1fc1e78341d7de']
 
-dependencies = [('Java', '1.8.0_144', '', True)]
+dependencies = [('Java', '1.8.0_144', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20150215')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-foss-2018a.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-foss-2018a.eb
index 8ea77e9a5bd3..ca5de62a8c93 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-foss-2018a.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-foss-2018a.eb
@@ -13,7 +13,7 @@ sources = ['v%(version)s.tar.gz']
 
 checksums = ['d94b3b440ea64c564005f4eadceff8d502129dd22369f6045e40121ca383a6ca']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20170619')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-intel-2018a.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-intel-2018a.eb
index 11f42e93a750..0b71e37b50f7 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-intel-2018a.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.1-intel-2018a.eb
@@ -13,7 +13,7 @@ sources = ['v%(version)s.tar.gz']
 
 checksums = ['d94b3b440ea64c564005f4eadceff8d502129dd22369f6045e40121ca383a6ca']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20170619')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b-CUDA-9.2.88.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b-CUDA-9.2.88.eb
index 32be3e9381f0..8df8f31d4d3a 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b-CUDA-9.2.88.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b-CUDA-9.2.88.eb
@@ -15,8 +15,8 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['59a7081b61ead0a5738e813c6fcfb614d2c5bb49c29b28609de8e2b51bea3ec0']
 
 dependencies = [
-    ('Java', '1.8', '', True),
-    ('CUDA', local_cuda_ver, '', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('CUDA', local_cuda_ver, '', SYSTEM),
 ]
 
 builddependencies = [('Autotools', '20180311')]
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b.eb
index d3d114b1a469..571ffcfac1fe 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.0.2-foss-2018b.eb
@@ -12,7 +12,7 @@ source_urls = ['https://github.com/beagle-dev/beagle-lib/archive/']
 sources = ['v%(version)s.tar.gz']
 checksums = ['59a7081b61ead0a5738e813c6fcfb614d2c5bb49c29b28609de8e2b51bea3ec0']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20180311')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-10.2.0.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-10.2.0.eb
index f40b3b1712fc..e676c19b2afb 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-10.2.0.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-10.2.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pkg-config', '0.29.2'),
     ('pocl', '1.6'),
 ]
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-8.2.0-2.31.1.eb
index d300d9d5ff78..d464264930a6 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-8.2.0-2.31.1.eb
@@ -12,7 +12,7 @@ source_urls = ['https://github.com/beagle-dev/beagle-lib/archive/']
 sources = ['v%(version)s.tar.gz']
 checksums = ['dd872b484a3a9f0bce369465e60ccf4e4c0cd7bd5ce41499415366019f236275']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20180311')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-9.3.0.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-9.3.0.eb
index f0dc7a138e7e..f7afb71fa1b3 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-9.3.0.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-GCC-9.3.0.eb
@@ -12,7 +12,7 @@ source_urls = ['https://github.com/beagle-dev/beagle-lib/archive/']
 sources = ['v%(version)s.tar.gz']
 checksums = ['dd872b484a3a9f0bce369465e60ccf4e4c0cd7bd5ce41499415366019f236275']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20180311')]
 
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-gcccuda-2019b.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-gcccuda-2019b.eb
index ecacb7868ce4..97e7108bf289 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-gcccuda-2019b.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-gcccuda-2019b.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['dd872b484a3a9f0bce369465e60ccf4e4c0cd7bd5ce41499415366019f236275']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pkg-config', '0.29.2'),
     ('pocl', '1.4'),
 ]
diff --git a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
index ce1ff6795f06..67aec4c48d2b 100644
--- a/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/b/beagle-lib/beagle-lib-3.1.2-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
@@ -12,7 +12,7 @@ source_urls = ['https://github.com/beagle-dev/beagle-lib/archive/']
 sources = ['v%(version)s.tar.gz']
 checksums = ['dd872b484a3a9f0bce369465e60ccf4e4c0cd7bd5ce41499415366019f236275']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 builddependencies = [('Autotools', '20180311')]
 
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.4.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.4.0.eb
index 2ae6ba18a54e..7122f8fed1d1 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.4.0.eb
@@ -16,7 +16,7 @@ builddependencies = [
     # zlib required, but being linked instatically, so not a runtime dep
     ('zlib', '1.2.8'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.5.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.5.0.eb
index 2d41305b4cf6..1ff0485bfc77 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.26-GCCcore-5.5.0.eb
@@ -16,7 +16,7 @@ builddependencies = [
     # zlib required, but being linked instatically, so not a runtime dep
     ('zlib', '1.2.11'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.3.0.eb
index 93b20c17e209..0759f7aae9ed 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.3.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.3'),
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.4.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.4.0.eb
index 3cdec71af844..43d45b407232 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-6.4.0.eb
@@ -15,7 +15,7 @@ builddependencies = [
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain,
     # to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-7.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-7.1.0.eb
index 7b12c3e7b9b2..6cacb8636c87 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-7.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.28-GCCcore-7.1.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.3'),
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.29-GCCcore-7.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.29-GCCcore-7.2.0.eb
index c35f4248bb2e..ec297ac8a27b 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.29-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.29-GCCcore-7.2.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-7.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-7.3.0.eb
index 562cf4dc332c..9ecaf6bc39b7 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-7.3.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-8.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-8.1.0.eb
index 51db6bef3532..f20a4a663729 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.30-GCCcore-8.1.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.0.4'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-7.4.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-7.4.0.eb
index 3db9b24875cc..3d6ec7437bbc 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-7.4.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.2.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-8.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-8.2.0.eb
index ef31e6f73c4c..8876efd1b6c8 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.31.1-GCCcore-8.2.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.0.5'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-8.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-8.3.0.eb
index 5e7624cfb624..a1384a814f71 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-8.3.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.3.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.1.0.eb
index 2482db7b76a2..7283ba452d4e 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.1.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.3.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.2.0.eb
index c79663877256..beeca4aff16d 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.32-GCCcore-9.2.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.3.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-10.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-10.1.0.eb
index fb99acd8de88..e78076854694 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-10.1.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.6.1'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-9.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-9.3.0.eb
index f74f0325c095..34dc183b567c 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.34-GCCcore-9.3.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.5.3'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.35-GCCcore-10.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.35-GCCcore-10.2.0.eb
index c3fb942ee7d8..43435891a600 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.35-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.35-GCCcore-10.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.7.1'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-10.3.0.eb
index 8a7c407a6bb3..6dd4731d7020 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-10.3.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.7.6'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-11.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-11.1.0.eb
index 9d954efae4e2..4b6a60c48f3a 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-11.1.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.7.6'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-8.4.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-8.4.0.eb
index 5fe10da2880b..efcc5a27842d 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-8.4.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.3.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-9.4.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-9.4.0.eb
index 9440aa2ae708..cdcea5ab36a5 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.36.1-GCCcore-9.4.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.7.6'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.37-GCCcore-11.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.37-GCCcore-11.2.0.eb
index 2f25a58407bb..e655d7053476 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.37-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.37-GCCcore-11.2.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.7.6'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-11.3.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-11.3.0.eb
index da7b3d38de58..ddecfa4f7db4 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-11.3.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.8.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-12.1.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-12.1.0.eb
index fdfefe7c0423..3710a56f3225 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-12.1.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.8.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-9.5.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-9.5.0.eb
index 9e8ca91c080d..bea25508b1e1 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.38-GCCcore-9.5.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.8.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/binutils/binutils-2.39-GCCcore-12.2.0.eb b/easybuild/easyconfigs/b/binutils/binutils-2.39-GCCcore-12.2.0.eb
index c8ec4f592435..f105d46cf0ef 100644
--- a/easybuild/easyconfigs/b/binutils/binutils-2.39-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/b/binutils/binutils-2.39-GCCcore-12.2.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('flex', '2.6.4'),
     ('Bison', '3.8.2'),
     # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
-    ('binutils', version, '', True)
+    ('binutils', version, '', SYSTEM)
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021a-CUDA-11.3.1.eb
index 1cba3eeb0250..60d41ad83e5e 100644
--- a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021a-CUDA-11.3.1.eb
@@ -12,7 +12,7 @@ description = """This module sets a group of environment variables for compilers
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('UCX-CUDA', '1.10.0', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021b-CUDA-11.4.1.eb
index 2aa49ff982ae..b72970646fb5 100644
--- a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2021b-CUDA-11.4.1.eb
@@ -12,7 +12,7 @@ description = """This module sets a group of environment variables for compilers
 toolchain = {'name': 'foss', 'version': '2021b'}
 
 dependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('UCX-CUDA', '1.11.2', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2022a-CUDA-11.7.0.eb b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2022a-CUDA-11.7.0.eb
index c1b49d2a91a5..c3cb995d63ed 100644
--- a/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2022a-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/b/buildenv/buildenv-default-foss-2022a-CUDA-11.7.0.eb
@@ -12,7 +12,7 @@ description = """This module sets a group of environment variables for compilers
 toolchain = {'name': 'foss', 'version': '2022a'}
 
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('UCX-CUDA', '1.12.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-5.4.0.eb b/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-5.4.0.eb
index d9104ae02c82..aeea4de6789e 100644
--- a/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-5.4.0.eb
@@ -18,6 +18,6 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-6.3.0.eb b/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-6.3.0.eb
index 333dfab361e3..8ff51f5bd3e1 100644
--- a/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/b/bzip2/bzip2-1.0.6-GCCcore-6.3.0.eb
@@ -18,6 +18,6 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/c/CESM-deps/CESM-deps-2-foss-2021b.eb b/easybuild/easyconfigs/c/CESM-deps/CESM-deps-2-foss-2021b.eb
index 7622ed76c902..6dcf10dda3d2 100644
--- a/easybuild/easyconfigs/c/CESM-deps/CESM-deps-2-foss-2021b.eb
+++ b/easybuild/easyconfigs/c/CESM-deps/CESM-deps-2-foss-2021b.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('PnetCDF', '1.12.3'),
     ('Subversion', '1.14.1'),
     ('git', '2.33.1', '-nodocs'),
-    ('git-lfs', '3.2.0', '', True),
+    ('git-lfs', '3.2.0', '', SYSTEM),
 ]
 
 components = [
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-2.7.14.eb
index 843dd43347b9..a891c0367b10 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-2.7.14.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.0'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-3.6.3.eb
index c34f9e1cc3a4..b4f032df4eeb 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-foss-2017b-Python-3.6.3.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.0'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017a-Python-2.7.13.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017a-Python-2.7.13.eb
index 4c9db1623b7b..7cceb21f8981 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017a-Python-2.7.13.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017a-Python-2.7.13.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.9.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-2.7.14.eb
index 020c81029d75..55e0812e853e 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-2.7.14.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-3.6.3.eb
index 7e6d5bdcc6f1..fa530f73cc25 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11-intel-2017b-Python-3.6.3.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.0'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-2.7.14.eb
index f9297a5a4691..08ece993edbd 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-2.7.14.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.2'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-3.6.4.eb
index 1c2a60faa0ae..4b1ed1907c70 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018a-Python-3.6.4.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.2'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-2.7.15.eb
index e8f39c66d575..8f439a24c425 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-2.7.15.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.11.4'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-3.6.6.eb
index dc1d8abbeca0..693040076f82 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-foss-2018b-Python-3.6.6.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.11.4'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-intel-2018a-Python-2.7.14.eb
index 27070c69ab02..b0310dabbf21 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.11.1-intel-2018a-Python-2.7.14.eb
@@ -25,7 +25,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.10.2'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 configopts = "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include\;$EBROOTLIBGLU/include "
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.14-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.14-foss-2019a-Python-3.7.2.eb
index 4d717d55089d..83445a5c0a63 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.14-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.14-foss-2019a-Python-3.7.2.eb
@@ -15,7 +15,7 @@ checksums = ['59464b1eaee892f2223ba570a7642892c999e29524ab102a6efd7c29c94a29f7']
 
 builddependencies = [
     ('CMake', '3.13.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.14-intel-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.14-intel-2019a-Python-3.7.2.eb
index 7af7769dea57..e2824c616046 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.14-intel-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.14-intel-2019a-Python-3.7.2.eb
@@ -15,7 +15,7 @@ checksums = ['59464b1eaee892f2223ba570a7642892c999e29524ab102a6efd7c29c94a29f7']
 
 builddependencies = [
     ('CMake', '3.13.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-foss-2019b-Python-3.7.4.eb
index 06c6212ddb5d..8258003e2a52 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-foss-2019b-Python-3.7.4.eb
@@ -15,7 +15,7 @@ checksums = ['d4ec2528b88a7c3a07b0b86db96c216822f85b951bf4bc7f9d1f26bf6c369afe']
 
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-intel-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-intel-2019b-Python-3.7.4.eb
index 5872c04d23b2..b0045e262252 100644
--- a/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-intel-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/c/CGAL/CGAL-4.14.1-intel-2019b-Python-3.7.4.eb
@@ -15,7 +15,7 @@ checksums = ['d4ec2528b88a7c3a07b0b86db96c216822f85b951bf4bc7f9d1f26bf6c369afe']
 
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/c/CMake/CMake-3.20.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/c/CMake/CMake-3.20.1-GCCcore-10.3.0.eb
index 8407f07472ad..8c8d1b0745c9 100644
--- a/easybuild/easyconfigs/c/CMake/CMake-3.20.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/c/CMake/CMake-3.20.1-GCCcore-10.3.0.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('bzip2', '1.0.8'),
     ('cURL', '7.76.0'),
     ('libarchive', '3.5.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/c/CMake/CMake-3.21.1-GCCcore-11.2.0.eb b/easybuild/easyconfigs/c/CMake/CMake-3.21.1-GCCcore-11.2.0.eb
index 60e004e56277..e09ed862f949 100644
--- a/easybuild/easyconfigs/c/CMake/CMake-3.21.1-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/c/CMake/CMake-3.21.1-GCCcore-11.2.0.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('bzip2', '1.0.8'),
     ('cURL', '7.78.0'),
     ('libarchive', '3.5.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/c/CMake/CMake-3.22.1-GCCcore-11.2.0.eb b/easybuild/easyconfigs/c/CMake/CMake-3.22.1-GCCcore-11.2.0.eb
index 7d88407d3780..87996bb065a4 100644
--- a/easybuild/easyconfigs/c/CMake/CMake-3.22.1-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/c/CMake/CMake-3.22.1-GCCcore-11.2.0.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('bzip2', '1.0.8'),
     ('cURL', '7.78.0'),
     ('libarchive', '3.5.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/c/CMake/CMake-3.23.1-GCCcore-11.3.0.eb b/easybuild/easyconfigs/c/CMake/CMake-3.23.1-GCCcore-11.3.0.eb
index d6c0f58b8ae9..069c6a25c279 100644
--- a/easybuild/easyconfigs/c/CMake/CMake-3.23.1-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/c/CMake/CMake-3.23.1-GCCcore-11.3.0.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('bzip2', '1.0.8'),
     ('cURL', '7.83.0'),
     ('libarchive', '3.6.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/c/CONCOCT/CONCOCT-1.1.0-foss-2020b-Python-2.7.18.eb b/easybuild/easyconfigs/c/CONCOCT/CONCOCT-1.1.0-foss-2020b-Python-2.7.18.eb
index 9c7b23d10c7d..e8a5cb71f322 100644
--- a/easybuild/easyconfigs/c/CONCOCT/CONCOCT-1.1.0-foss-2020b-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/c/CONCOCT/CONCOCT-1.1.0-foss-2020b-Python-2.7.18.eb
@@ -25,7 +25,7 @@ dependencies = [
     ('GSL', '2.6'),
     ('MEGAHIT', '1.2.9', versionsuffix),
     ('parallel', '20210322'),
-    ('picard', '2.25.0', '-Java-11', True),
+    ('picard', '2.25.0', '-Java-11', SYSTEM),
     ('Pysam', '0.16.0.1', versionsuffix),
     ('SAMtools', '1.11'),
     ('scikit-learn', '0.20.4', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CPLEX/CPLEX-12.10-GCCcore-8.3.0-Python-3.7.4.eb b/easybuild/easyconfigs/c/CPLEX/CPLEX-12.10-GCCcore-8.3.0-Python-3.7.4.eb
index 854f8a57c6c7..2bb7d98cdcf5 100644
--- a/easybuild/easyconfigs/c/CPLEX/CPLEX-12.10-GCCcore-8.3.0-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/c/CPLEX/CPLEX-12.10-GCCcore-8.3.0-Python-3.7.4.eb
@@ -19,7 +19,7 @@ checksums = ['cd530eb9c6d446bd18b5dc5a3d61070bfad92c3efd6565d2d8e31a2acfb496f7']
 builddependencies = [('binutils', '2.32')]
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Python', '3.7.4'),
 ]
 
diff --git a/easybuild/easyconfigs/c/CPLEX/CPLEX-12.9-GCCcore-8.2.0.eb b/easybuild/easyconfigs/c/CPLEX/CPLEX-12.9-GCCcore-8.2.0.eb
index a35951482e99..4ccf2abec924 100644
--- a/easybuild/easyconfigs/c/CPLEX/CPLEX-12.9-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/c/CPLEX/CPLEX-12.9-GCCcore-8.2.0.eb
@@ -20,7 +20,7 @@ multi_deps = {'Python': ['3.7.2', '2.7.15']}
 builddependencies = [('binutils', '2.31.1')]
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 moduleclass = 'math'
diff --git a/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.1.2-foss-2020b-Python-2.7.18.eb b/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.1.2-foss-2020b-Python-2.7.18.eb
index 4024c882cdba..e815134c6ece 100644
--- a/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.1.2-foss-2020b-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.1.2-foss-2020b-Python-2.7.18.eb
@@ -24,11 +24,11 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '2.7.18'),
     ('SciPy-bundle', '2020.11', '-Python-%(pyver)s'),
     ('matplotlib', '2.2.5', '-Python-%(pyver)s'),
-    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', True),
+    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', SYSTEM),
     ('FLASH', '2.2.00'),
     ('SAMtools', '1.11'),
     ('Bowtie2', '2.4.2'),
diff --git a/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.2.1-foss-2020b.eb b/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.2.1-foss-2020b.eb
index 10d20ead4744..e1a264c229a2 100644
--- a/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.2.1-foss-2020b.eb
+++ b/easybuild/easyconfigs/c/CRISPResso2/CRISPResso2-2.2.1-foss-2020b.eb
@@ -23,11 +23,11 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.8.6'),
     ('SciPy-bundle', '2020.11'),
     ('matplotlib', '3.3.3'),
-    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', True),
+    ('Trimmomatic', '0.39', '-Java-%(javashortver)s', SYSTEM),
     ('FLASH', '2.2.00'),
     ('SAMtools', '1.11'),
     ('Bowtie2', '2.4.2'),
diff --git a/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-GCC-9.3.0.eb b/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-GCC-9.3.0.eb
index c193a9b0bcdf..23109630c34e 100644
--- a/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-GCC-9.3.0.eb
+++ b/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-GCC-9.3.0.eb
@@ -10,7 +10,7 @@ description = """CUDA (formerly Compute Unified Device Architecture) is a parall
 
 toolchain = {'name': 'GCC', 'version': '9.3.0'}
 
-dependencies = [('CUDAcore', '11.0.2', '', True)]
+dependencies = [('CUDAcore', '11.0.2', '', SYSTEM)]
 
 altroot = 'CUDAcore'
 
diff --git a/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-iccifort-2020.1.217.eb b/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-iccifort-2020.1.217.eb
index 7f77cc256bf4..a2eecc5b7037 100644
--- a/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-iccifort-2020.1.217.eb
+++ b/easybuild/easyconfigs/c/CUDA/CUDA-11.0.2-iccifort-2020.1.217.eb
@@ -10,7 +10,7 @@ description = """CUDA (formerly Compute Unified Device Architecture) is a parall
 
 toolchain = {'name': 'iccifort', 'version': '2020.1.217'}
 
-dependencies = [('CUDAcore', '11.0.2', '', True)]
+dependencies = [('CUDAcore', '11.0.2', '', SYSTEM)]
 
 altroot = 'CUDAcore'
 
diff --git a/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-GCC-10.2.0.eb b/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-GCC-10.2.0.eb
index d6d90b81331c..02cea32f4a5e 100644
--- a/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-GCC-10.2.0.eb
+++ b/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-GCC-10.2.0.eb
@@ -10,7 +10,7 @@ description = """CUDA (formerly Compute Unified Device Architecture) is a parall
 
 toolchain = {'name': 'GCC', 'version': '10.2.0'}
 
-dependencies = [('CUDAcore', version, '', True)]
+dependencies = [('CUDAcore', version, '', SYSTEM)]
 
 altroot = 'CUDAcore'
 
diff --git a/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-iccifort-2020.4.304.eb b/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-iccifort-2020.4.304.eb
index c9848f32320d..60c8e706731a 100644
--- a/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-iccifort-2020.4.304.eb
+++ b/easybuild/easyconfigs/c/CUDA/CUDA-11.1.1-iccifort-2020.4.304.eb
@@ -10,7 +10,7 @@ description = """CUDA (formerly Compute Unified Device Architecture) is a parall
 
 toolchain = {'name': 'iccifort', 'version': '2020.4.304'}
 
-dependencies = [('CUDAcore', version, '', True)]
+dependencies = [('CUDAcore', version, '', SYSTEM)]
 
 altroot = 'CUDAcore'
 
diff --git a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-foss-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-foss-2017b-Python-2.7.14.eb
index dea47b253897..4b4cf0047b5c 100644
--- a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-foss-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-foss-2017b-Python-2.7.14.eb
@@ -31,7 +31,7 @@ dependencies = [
 ]
 builddependencies = [
     ('SCons', '3.0.1', versionsuffix),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('googletest', '1.8.0'),
     ('fmt', '3.0.2'),
 ]
diff --git a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017a-Python-2.7.13.eb b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017a-Python-2.7.13.eb
index 2aca050dae2e..a34dff6cd903 100644
--- a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017a-Python-2.7.13.eb
+++ b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017a-Python-2.7.13.eb
@@ -30,7 +30,7 @@ dependencies = [
 builddependencies = [
     ('SCons', '2.5.1', versionsuffix),
     ('3to2', '1.1.1', versionsuffix),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('fmt', '3.0.2'),
     ('googletest', '1.8.0'),
 ]
diff --git a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017b-Python-2.7.14.eb
index adf2eb1798ec..cd969a414678 100644
--- a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2017b-Python-2.7.14.eb
@@ -31,7 +31,7 @@ dependencies = [
 ]
 builddependencies = [
     ('SCons', '3.0.1', versionsuffix),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('fmt', '3.0.2'),
     ('googletest', '1.8.0'),
 ]
diff --git a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2018a-Python-2.7.14.eb
index 49e2af27122b..396bc3cc8442 100644
--- a/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/Cantera/Cantera-2.3.0-intel-2018a-Python-2.7.14.eb
@@ -31,7 +31,7 @@ dependencies = [
 ]
 builddependencies = [
     ('SCons', '3.0.1', versionsuffix),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('fmt', '3.0.2'),
     ('googletest', '1.8.0'),
 ]
diff --git a/easybuild/easyconfigs/c/Cantera/Cantera-2.4.0-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/c/Cantera/Cantera-2.4.0-intel-2018a-Python-2.7.14.eb
index dd2f84d5e114..64fbb834858f 100644
--- a/easybuild/easyconfigs/c/Cantera/Cantera-2.4.0-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/Cantera/Cantera-2.4.0-intel-2018a-Python-2.7.14.eb
@@ -21,7 +21,7 @@ dependencies = [
 ]
 builddependencies = [
     ('SCons', '3.0.1', versionsuffix),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('fmt', '3.0.2'),
     ('googletest', '1.8.0'),
 ]
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-2.7.14.eb
index c6904d99cd17..55855240f3fc 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-2.7.14.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'foss', 'version': '2017b'}
 
 dependencies = [
     ('Python', '2.7.14'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.1b2'),
     ('matplotlib', '2.1.0', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-3.6.3.eb
index e714707c6e2d..5e8e0e8c81c1 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2017b-Python-3.6.3.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'foss', 'version': '2017b'}
 
 dependencies = [
     ('Python', '3.6.3'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.1b2'),
     ('matplotlib', '2.1.0', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2018b-Python-2.7.15.eb
index a86d3eb6269e..f4962c34698a 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-foss-2018b-Python-2.7.15.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'foss', 'version': '2018b'}
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.2.1'),
     ('matplotlib', '2.2.3', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-2.7.14.eb
index 3896c5c1e881..be8402904245 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-2.7.14.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'intel', 'version': '2017b'}
 
 dependencies = [
     ('Python', '2.7.14'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.1b2'),
     ('matplotlib', '2.1.0', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-3.6.3.eb
index a37f08d8828d..d4b79112d0ab 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.13-intel-2017b-Python-3.6.3.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'intel', 'version': '2017b'}
 
 dependencies = [
     ('Python', '3.6.3'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.1b2'),
     ('matplotlib', '2.1.0', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2019a-Python-2.7.15.eb
index 4514d7637942..ff1a1fe08e9d 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2019a-Python-2.7.15.eb
@@ -22,7 +22,7 @@ checksums = ['0dcf31eab5e340a0fff37d7a5091d46d9269b0708db8f789adcd7cbd2a09a2b7']
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '2.7.15'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.2.1'),
     ('SciPy-bundle', '2019.03'),  # numpy
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2020b-Python-2.7.18.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2020b-Python-2.7.18.eb
index b5127b17c53d..3930c1d64ba6 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2020b-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.0.18-foss-2020b-Python-2.7.18.eb
@@ -32,7 +32,7 @@ checksums = [
 
 dependencies = [
     ('Python', '2.7.18'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
     ('SciPy-bundle', '2020.11', versionsuffix),
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-foss-2019b-Python-3.7.4.eb
index 5c9942d78bd2..76cd653d9bc3 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-foss-2019b-Python-3.7.4.eb
@@ -34,7 +34,7 @@ checksums = [
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '3.7.4'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.2.1'),
     ('SciPy-bundle', '2019.10', versionsuffix),  # numpy
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-intel-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-intel-2019b-Python-3.7.4.eb
index 59a8d8608ce7..07591763a36c 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-intel-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.2-intel-2019b-Python-3.7.4.eb
@@ -34,7 +34,7 @@ checksums = [
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '3.7.4'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.2.1'),
     ('SciPy-bundle', '2019.10', versionsuffix),  # numpy
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021a.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021a.eb
index a7e58e823a77..7fb4d4471640 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021a.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021a.eb
@@ -33,7 +33,7 @@ checksums = [
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '3.9.5'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
     ('SciPy-bundle', '2021.05'),  # numpy
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021b.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021b.eb
index c1bc07048f50..9cf5f49131da 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021b.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-foss-2021b.eb
@@ -34,7 +34,7 @@ checksums = [
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '3.9.6'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
     ('SciPy-bundle', '2021.10'),  # numpy
diff --git a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-intel-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-intel-2020a-Python-3.8.2.eb
index 27fd970b63a0..c7dd8d348973 100644
--- a/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-intel-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/c/CheckM/CheckM-1.1.3-intel-2020a-Python-3.8.2.eb
@@ -34,7 +34,7 @@ checksums = [
 # https://github.com/Ecogenomics/CheckM/blob/master/setup.py
 dependencies = [
     ('Python', '3.8.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.1'),
     ('SciPy-bundle', '2020.03', versionsuffix),  # numpy
diff --git a/easybuild/easyconfigs/c/Clang/Clang-12.0.1-GCCcore-10.3.0-CUDA-11.3.1.eb b/easybuild/easyconfigs/c/Clang/Clang-12.0.1-GCCcore-10.3.0-CUDA-11.3.1.eb
index dead5e2ce6a0..60ac440d2d12 100644
--- a/easybuild/easyconfigs/c/Clang/Clang-12.0.1-GCCcore-10.3.0-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/c/Clang/Clang-12.0.1-GCCcore-10.3.0-CUDA-11.3.1.eb
@@ -57,7 +57,7 @@ dependencies = [
     ('Z3', '4.8.11'),
     ('libffi', '3.3'),
     ('elfutils', '0.185'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/c/Clang/Clang-13.0.1-GCCcore-11.2.0-CUDA-11.4.1.eb b/easybuild/easyconfigs/c/Clang/Clang-13.0.1-GCCcore-11.2.0-CUDA-11.4.1.eb
index 42c8ecf704e5..f051e7769138 100644
--- a/easybuild/easyconfigs/c/Clang/Clang-13.0.1-GCCcore-11.2.0-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/c/Clang/Clang-13.0.1-GCCcore-11.2.0-CUDA-11.4.1.eb
@@ -57,7 +57,7 @@ dependencies = [
     ('Z3', '4.8.12'),
     ('libffi', '3.4.2'),
     ('elfutils', '0.185'),
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/c/Clang/Clang-8.0.0-GCCcore-8.2.0-CUDA-10.1.105.eb b/easybuild/easyconfigs/c/Clang/Clang-8.0.0-GCCcore-8.2.0-CUDA-10.1.105.eb
index b4f7a627ae0a..ea670d2cb0c7 100644
--- a/easybuild/easyconfigs/c/Clang/Clang-8.0.0-GCCcore-8.2.0-CUDA-10.1.105.eb
+++ b/easybuild/easyconfigs/c/Clang/Clang-8.0.0-GCCcore-8.2.0-CUDA-10.1.105.eb
@@ -54,7 +54,7 @@ dependencies = [
     ('binutils', '2.31.1'),
     ('ncurses', '6.1'),
     ('GMP', '6.1.2'),
-    ('CUDA', local_cudaver, '', True),
+    ('CUDA', local_cudaver, '', SYSTEM),
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/c/CuPy/CuPy-8.5.0-fosscuda-2020b.eb b/easybuild/easyconfigs/c/CuPy/CuPy-8.5.0-fosscuda-2020b.eb
index 7a92cacfd678..dddce517cbc7 100644
--- a/easybuild/easyconfigs/c/CuPy/CuPy-8.5.0-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/c/CuPy/CuPy-8.5.0-fosscuda-2020b.eb
@@ -13,9 +13,9 @@ builddependencies = [('Cython', '0.29.22')]
 dependencies = [
     ('Python', '3.8.6'),
     ('SciPy-bundle', '2020.11'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
-    ('cuTENSOR', '1.2.2.5', '-CUDA-%(cudaver)s', True),
+    ('cuTENSOR', '1.2.2.5', '-CUDA-%(cudaver)s', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-foss-2018b.eb b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-foss-2018b.eb
index 744472a8a396..c3ad4a5a02a9 100644
--- a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-foss-2018b.eb
+++ b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-foss-2018b.eb
@@ -24,7 +24,7 @@ checksums = [
 ]
 
 builddependencies = [
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('SAMtools', '0.1.20'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-gompi-2019b.eb b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-gompi-2019b.eb
index 81654b4596c6..5ec63582c06d 100644
--- a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-gompi-2019b.eb
+++ b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-gompi-2019b.eb
@@ -24,7 +24,7 @@ checksums = [
 ]
 
 builddependencies = [
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('SAMtools', '0.1.20'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2017b.eb b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2017b.eb
index 89252c318549..c322edc64a13 100644
--- a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2017b.eb
+++ b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2017b.eb
@@ -15,7 +15,7 @@ checksums = [
     '9199390a11376ffba0583741752faca277c82ce3ab665a66ba8dc5991c45088f',  # Cufflinks-2.2.1_fix-boost-inc.patch
 ]
 
-builddependencies = [('Eigen', '3.3.4', '', True)]
+builddependencies = [('Eigen', '3.3.4', '', SYSTEM)]
 dependencies = [
     ('Boost', '1.65.1'),
     ('SAMtools', '0.1.20'),
diff --git a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2018a.eb b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2018a.eb
index 11a20f707332..94cc688d081a 100644
--- a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2018a.eb
+++ b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-2.2.1-intel-2018a.eb
@@ -16,7 +16,7 @@ checksums = [
 ]
 
 builddependencies = [
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('SAMtools', '0.1.20'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-20190706-gompi-2019a.eb b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-20190706-gompi-2019a.eb
index fb65a457aaed..881426fe5766 100644
--- a/easybuild/easyconfigs/c/Cufflinks/Cufflinks-20190706-gompi-2019a.eb
+++ b/easybuild/easyconfigs/c/Cufflinks/Cufflinks-20190706-gompi-2019a.eb
@@ -16,7 +16,7 @@ sources = [{'download_filename': '%s.tar.gz' % local_commit, 'filename': SOURCE_
 checksums = ['444c632083a473fe4fd99ff189cef5bbd95daee0912e8eefe79534bf225fbcb6']
 
 builddependencies = [
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('Autotools', '20180311'),
     ('SAMtools', '1.9'),
 ]
diff --git a/easybuild/easyconfigs/c/cURL/cURL-7.49.1-GCCcore-5.4.0.eb b/easybuild/easyconfigs/c/cURL/cURL-7.49.1-GCCcore-5.4.0.eb
index a4c5a87e6b94..34bc1da2fd43 100644
--- a/easybuild/easyconfigs/c/cURL/cURL-7.49.1-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/c/cURL/cURL-7.49.1-GCCcore-5.4.0.eb
@@ -17,7 +17,7 @@ source_urls = ['http://curl.haxx.se/download/']
 sources = [SOURCELOWER_TAR_GZ]
 checksums = ['ff3e80c1ca6a068428726cd7dd19037a47cc538ce58ef61c59587191039b2ca6']
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 osdependencies = [('openssl-devel', 'libssl-dev', 'libopenssl-devel')]
 
diff --git a/easybuild/easyconfigs/c/cURL/cURL-7.76.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/c/cURL/cURL-7.76.0-GCCcore-10.3.0.eb
index 0c3b29d58631..27b19b6d9c62 100644
--- a/easybuild/easyconfigs/c/cURL/cURL-7.76.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/c/cURL/cURL-7.76.0-GCCcore-10.3.0.eb
@@ -30,7 +30,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-zlib'
diff --git a/easybuild/easyconfigs/c/cURL/cURL-7.78.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/c/cURL/cURL-7.78.0-GCCcore-11.2.0.eb
index e66d05453ca7..ad57d96beb20 100644
--- a/easybuild/easyconfigs/c/cURL/cURL-7.78.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/c/cURL/cURL-7.78.0-GCCcore-11.2.0.eb
@@ -27,7 +27,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-zlib '
diff --git a/easybuild/easyconfigs/c/cURL/cURL-7.83.0-GCCcore-11.3.0.eb b/easybuild/easyconfigs/c/cURL/cURL-7.83.0-GCCcore-11.3.0.eb
index 4a4ad41cdfed..2813650a0d3c 100644
--- a/easybuild/easyconfigs/c/cURL/cURL-7.83.0-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/c/cURL/cURL-7.83.0-GCCcore-11.3.0.eb
@@ -27,7 +27,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-zlib '
diff --git a/easybuild/easyconfigs/c/cURL/cURL-7.84.0-GCCcore-12.1.0.eb b/easybuild/easyconfigs/c/cURL/cURL-7.84.0-GCCcore-12.1.0.eb
index 69ff9b827888..7ff88d2ae52e 100644
--- a/easybuild/easyconfigs/c/cURL/cURL-7.84.0-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/c/cURL/cURL-7.84.0-GCCcore-12.1.0.eb
@@ -27,7 +27,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-zlib '
diff --git a/easybuild/easyconfigs/c/canu/canu-1.8-GCCcore-8.2.0-Perl-5.28.1.eb b/easybuild/easyconfigs/c/canu/canu-1.8-GCCcore-8.2.0-Perl-5.28.1.eb
index 5c98cf65e4e4..5eb3e8890bbf 100644
--- a/easybuild/easyconfigs/c/canu/canu-1.8-GCCcore-8.2.0-Perl-5.28.1.eb
+++ b/easybuild/easyconfigs/c/canu/canu-1.8-GCCcore-8.2.0-Perl-5.28.1.eb
@@ -16,7 +16,7 @@ checksums = ['30ecfe574166f54f79606038830f68927cf0efab33bdc3c6e43fd1448fa0b2e4']
 builddependencies = [('binutils', '2.31.1')]
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Perl', '5.28.1'),
     ('gnuplot', '5.2.6'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-1.8-foss-2017b-Perl-5.26.0.eb b/easybuild/easyconfigs/c/canu/canu-1.8-foss-2017b-Perl-5.26.0.eb
index 31877e3e7dd4..54dd03ba54b9 100644
--- a/easybuild/easyconfigs/c/canu/canu-1.8-foss-2017b-Perl-5.26.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-1.8-foss-2017b-Perl-5.26.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['30ecfe574166f54f79606038830f68927cf0efab33bdc3c6e43fd1448fa0b2e4']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Perl', '5.26.0'),
     ('gnuplot', '5.2.2'),
     ('Boost', '1.65.1'),
diff --git a/easybuild/easyconfigs/c/canu/canu-1.8-foss-2018b-Perl-5.28.0.eb b/easybuild/easyconfigs/c/canu/canu-1.8-foss-2018b-Perl-5.28.0.eb
index 1066c169c5e5..114020eb1659 100644
--- a/easybuild/easyconfigs/c/canu/canu-1.8-foss-2018b-Perl-5.28.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-1.8-foss-2018b-Perl-5.28.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['30ecfe574166f54f79606038830f68927cf0efab33bdc3c6e43fd1448fa0b2e4']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Perl', '5.28.0'),
     ('gnuplot', '5.2.5'),
     ('Boost', '1.67.0'),
diff --git a/easybuild/easyconfigs/c/canu/canu-1.8-intel-2017b-Perl-5.26.0.eb b/easybuild/easyconfigs/c/canu/canu-1.8-intel-2017b-Perl-5.26.0.eb
index e74e3dbe8b91..75b1d6107313 100644
--- a/easybuild/easyconfigs/c/canu/canu-1.8-intel-2017b-Perl-5.26.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-1.8-intel-2017b-Perl-5.26.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['30ecfe574166f54f79606038830f68927cf0efab33bdc3c6e43fd1448fa0b2e4']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Perl', '5.26.0'),
     ('gnuplot', '5.2.2'),
     ('Boost', '1.65.1'),
diff --git a/easybuild/easyconfigs/c/canu/canu-1.9-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/c/canu/canu-1.9-GCCcore-8.3.0-Java-11.eb
index a1185d44d414..b9a967988411 100644
--- a/easybuild/easyconfigs/c/canu/canu-1.9-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/c/canu/canu-1.9-GCCcore-8.3.0-Java-11.eb
@@ -16,7 +16,7 @@ checksums = ['6b086ab6086c050752166500378bc4b3b3543d4c617863e894d296171cee3385']
 builddependencies = [('binutils', '2.32')]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.30.0'),
     ('gnuplot', '5.2.8'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-10.2.0.eb b/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-10.2.0.eb
index 7a7d3c59ec88..1a81cacc4670 100644
--- a/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-10.2.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.32.0'),
     ('gnuplot', '5.4.1'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-9.3.0-Java-11.eb b/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-9.3.0-Java-11.eb
index 990e0dcabec1..8e5ee7b58b95 100644
--- a/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-9.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/c/canu/canu-2.1.1-GCCcore-9.3.0-Java-11.eb
@@ -20,7 +20,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.30.2'),
     ('gnuplot', '5.2.8'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0-Java-11.eb b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0-Java-11.eb
index 42b5f5b32b9d..441c3224e458 100644
--- a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0-Java-11.eb
@@ -20,7 +20,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.32.1'),
     ('gnuplot', '5.4.2'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0.eb b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0.eb
index 688753bfca0b..1eff45bbc43b 100644
--- a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-10.3.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.32.1'),
     ('gnuplot', '5.4.2'),
 ]
diff --git a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-11.2.0.eb
index 946fb4dd0388..4d58483415ea 100644
--- a/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/c/canu/canu-2.2-GCCcore-11.2.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.34.0'),
     ('gnuplot', '5.4.2'),
 ]
diff --git a/easybuild/easyconfigs/c/cell2location/cell2location-0.05-alpha-fosscuda-2020b.eb b/easybuild/easyconfigs/c/cell2location/cell2location-0.05-alpha-fosscuda-2020b.eb
index 7d60fb1c61d9..8356b39778ad 100644
--- a/easybuild/easyconfigs/c/cell2location/cell2location-0.05-alpha-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/c/cell2location/cell2location-0.05-alpha-fosscuda-2020b.eb
@@ -18,7 +18,7 @@ builddependencies = [
 
 dependencies = [
     ('Python', '3.8.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('SciPy-bundle', '2020.11'),
     ('leidenalg', '0.8.3'),
     ('hyperopt', '0.2.5'),
diff --git a/easybuild/easyconfigs/c/colossalai/colossalai-0.1.8-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/c/colossalai/colossalai-0.1.8-foss-2021a-CUDA-11.3.1.eb
index 5a14fa765f1f..c4b1c45f09f2 100644
--- a/easybuild/easyconfigs/c/colossalai/colossalai-0.1.8-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/c/colossalai/colossalai-0.1.8-foss-2021a-CUDA-11.3.1.eb
@@ -11,7 +11,7 @@ toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SciPy-bundle', '2021.05'),
     ('PyTorch-Lightning', '1.5.9', versionsuffix),
     ('torchvision', '0.11.1', versionsuffix),
diff --git a/easybuild/easyconfigs/c/ctffind/ctffind-4.1.14-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/c/ctffind/ctffind-4.1.14-foss-2021a-CUDA-11.3.1.eb
index 8a1c4c6c03a5..87813b35bd94 100644
--- a/easybuild/easyconfigs/c/ctffind/ctffind-4.1.14-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/c/ctffind/ctffind-4.1.14-foss-2021a-CUDA-11.3.1.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('LibTIFF', '4.2.0'),
     ('GSL', '2.7'),
     ('wxWidgets', '3.1.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 configopts = '--enable-openmp '
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-FCC-4.5.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-FCC-4.5.0.eb
index eb7933a6c04b..3552aab690af 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-FCC-4.5.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-FCC-4.5.0.eb
@@ -23,7 +23,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.36.1')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-10.3.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-10.3.0.eb
index 4b461e5efbd8..2d38e9742d41 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-10.3.0.eb
@@ -23,7 +23,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.36.1')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.2.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.2.0.eb
index 94dd6b092b5c..e05ffa92185c 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.37')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.3.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.3.0.eb
index 21b56c744513..1217b252c493 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-11.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.38')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-12.1.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-12.1.0.eb
index d33d1cd63053..0d52a3be4477 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-12.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.38')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.2.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.2.0.eb
index c78178d69973..515c85e1a9c2 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.31.1')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.3.0.eb b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.3.0.eb
index 0c21b4fc3633..1a66d75ceb17 100644
--- a/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/d/DB/DB-18.1.40-GCCcore-8.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 
 builddependencies = [('binutils', '2.32')]
 
-dependencies = [('OpenSSL', '1.1', '', True)]
+dependencies = [('OpenSSL', '1.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/db_%s' % x for x in ['archive', 'checkpoint', 'convert', 'deadlock', 'dump', 'hotbackup',
diff --git a/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.2.0.eb b/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.2.0.eb
index 5f7fbe14d4a2..094f7bc25d27 100644
--- a/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.2.0.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Perl', '5.34.0'),
     ('MariaDB', '10.6.4'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 options = {'modulename': 'DBD::mysql'}
diff --git a/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.3.0.eb b/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.3.0.eb
index eb71c16f4673..6d67a433eb4e 100644
--- a/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.3.0.eb
+++ b/easybuild/easyconfigs/d/DBD-mysql/DBD-mysql-4.050-GCC-11.3.0.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Perl', '5.34.1'),
     ('MariaDB', '10.9.3'),
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 options = {'modulename': 'DBD::mysql'}
diff --git a/easybuild/easyconfigs/d/DCMTK/DCMTK-3.6.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/d/DCMTK/DCMTK-3.6.6-GCCcore-11.2.0.eb
index f7c16f218ab7..2e64cfeb8f15 100644
--- a/easybuild/easyconfigs/d/DCMTK/DCMTK-3.6.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/d/DCMTK/DCMTK-3.6.6-GCCcore-11.2.0.eb
@@ -21,7 +21,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('libjpeg-turbo', '2.0.6'),
     ('LibTIFF', '4.3.0'),
diff --git a/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2018.1.0.post1-foss-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2018.1.0.post1-foss-2018a-Python-3.6.4.eb
index 61ccdb3b1202..197ea4e94e2c 100644
--- a/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2018.1.0.post1-foss-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2018.1.0.post1-foss-2018a-Python-3.6.4.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('Trilinos', '12.12.1', versionsuffix),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.7'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('PLY', '3.11', versionsuffix),
     ('VTK', '8.1.0', versionsuffix),
     ('petsc4py', '3.9.1', versionsuffix),
diff --git a/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2019.1.0.post0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2019.1.0.post0-foss-2019b-Python-3.7.4.eb
index 51c770e09cc6..067b5659b17a 100644
--- a/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2019.1.0.post0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/d/DOLFIN/DOLFIN-2019.1.0.post0-foss-2019b-Python-3.7.4.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('Trilinos', '12.12.1', versionsuffix),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.9'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('PLY', '3.11', versionsuffix),
     ('VTK', '8.2.0', versionsuffix),
     ('petsc4py', '3.12.0', versionsuffix),
diff --git a/easybuild/easyconfigs/d/DROP/DROP-1.0.3-foss-2020b-R-4.0.3.eb b/easybuild/easyconfigs/d/DROP/DROP-1.0.3-foss-2020b-R-4.0.3.eb
index 020b8f5f672c..e06ee84b7f4e 100644
--- a/easybuild/easyconfigs/d/DROP/DROP-1.0.3-foss-2020b-R-4.0.3.eb
+++ b/easybuild/easyconfigs/d/DROP/DROP-1.0.3-foss-2020b-R-4.0.3.eb
@@ -13,7 +13,7 @@ dependencies = [
     ('R', '4.0.3'),
     ('R-bundle-Bioconductor', '3.12', '-R-%(rver)s'),
     ('tMAE', '1.0.0', '-R-%(rver)s'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('GATK', '4.2.0.0', '-Java-%(javaver)s'),
     ('Graphviz', '2.47.0', '-Java-%(javaver)s'),
     ('Python', '3.8.6'),
@@ -23,7 +23,7 @@ dependencies = [
     ('HTSlib', '1.11'),  # for tabix
     ('SAMtools', '1.11'),
     ('BCFtools', '1.11'),
-    ('Pandoc', '2.13', '', True),
+    ('Pandoc', '2.13', '', SYSTEM),
 ]
 
 # postinstallcmds for pandoc are required to avoid that import fails because pandoc/definitions dir is not installed
diff --git a/easybuild/easyconfigs/d/DROP/DROP-1.1.0-foss-2020b-R-4.0.3.eb b/easybuild/easyconfigs/d/DROP/DROP-1.1.0-foss-2020b-R-4.0.3.eb
index 014ae7c311ee..8091ae5611be 100644
--- a/easybuild/easyconfigs/d/DROP/DROP-1.1.0-foss-2020b-R-4.0.3.eb
+++ b/easybuild/easyconfigs/d/DROP/DROP-1.1.0-foss-2020b-R-4.0.3.eb
@@ -13,7 +13,7 @@ dependencies = [
     ('R', '4.0.3'),
     ('R-bundle-Bioconductor', '3.12', '-R-%(rver)s'),
     ('tMAE', '1.0.0', '-R-%(rver)s'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('GATK', '4.2.0.0', '-Java-%(javaver)s'),
     ('Graphviz', '2.47.0', '-Java-%(javaver)s'),
     ('Python', '3.8.6'),
@@ -23,7 +23,7 @@ dependencies = [
     ('HTSlib', '1.11'),  # for tabix
     ('SAMtools', '1.11'),
     ('BCFtools', '1.11'),
-    ('Pandoc', '2.13', '', True),
+    ('Pandoc', '2.13', '', SYSTEM),
 ]
 
 exts_list = [
diff --git a/easybuild/easyconfigs/d/DROP/DROP-1.1.1-foss-2021b-R-4.1.2.eb b/easybuild/easyconfigs/d/DROP/DROP-1.1.1-foss-2021b-R-4.1.2.eb
index db1db5f1d927..64d414e98e30 100644
--- a/easybuild/easyconfigs/d/DROP/DROP-1.1.1-foss-2021b-R-4.1.2.eb
+++ b/easybuild/easyconfigs/d/DROP/DROP-1.1.1-foss-2021b-R-4.1.2.eb
@@ -13,7 +13,7 @@ dependencies = [
     ('R', '4.1.2'),
     ('R-bundle-Bioconductor', '3.14', '-R-%(rver)s'),
     ('tMAE', '1.0.1', '-R-%(rver)s'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('GATK', '4.2.3.0', '-Java-%(javaver)s'),
     ('Graphviz', '2.50.0'),
     ('Python', '3.9.6'),
@@ -23,7 +23,7 @@ dependencies = [
     ('HTSlib', '1.14'),  # for tabix
     ('SAMtools', '1.14'),
     ('BCFtools', '1.14'),
-    ('Pandoc', '2.13', '', True),
+    ('Pandoc', '2.13', '', SYSTEM),
 ]
 
 exts_list = [
diff --git a/easybuild/easyconfigs/d/Detectron2/Detectron2-0.6-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/d/Detectron2/Detectron2-0.6-foss-2021a-CUDA-11.3.1.eb
index 3cfdd8563792..1a94e28f5347 100644
--- a/easybuild/easyconfigs/d/Detectron2/Detectron2-0.6-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/d/Detectron2/Detectron2-0.6-foss-2021a-CUDA-11.3.1.eb
@@ -21,7 +21,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('PyTorch', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.13-GCCcore-6.3.0.eb b/easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.13-GCCcore-6.3.0.eb
index 90fd7aad74c5..3b4f5c86dc5c 100644
--- a/easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.13-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.13-GCCcore-6.3.0.eb
@@ -13,7 +13,7 @@ checksums = ['af667887bd7a87dc0dbf9ac8d86c96b552dfb8ca9c790ed1cbffaa6131573f6b']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
     ('CMake', '3.7.2'),
     ('flex', '2.6.3'),
     ('Bison', '3.0.4'),
diff --git a/easybuild/easyconfigs/d/DualSPHysics/DualSPHysics-5.0.175-GCC-11.2.0-CUDA-11.4.1.eb b/easybuild/easyconfigs/d/DualSPHysics/DualSPHysics-5.0.175-GCC-11.2.0-CUDA-11.4.1.eb
index 45622c59260e..737412283c03 100644
--- a/easybuild/easyconfigs/d/DualSPHysics/DualSPHysics-5.0.175-GCC-11.2.0-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/d/DualSPHysics/DualSPHysics-5.0.175-GCC-11.2.0-CUDA-11.4.1.eb
@@ -30,7 +30,7 @@ checksums = [
 srcdir = 'src/source'
 
 builddependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('CMake', '3.21.1'),
 ]
 
diff --git a/easybuild/easyconfigs/d/deepmedic/deepmedic-0.8.2-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/d/deepmedic/deepmedic-0.8.2-foss-2021a-CUDA-11.3.1.eb
index c9fb8927779d..319fbdda612d 100644
--- a/easybuild/easyconfigs/d/deepmedic/deepmedic-0.8.2-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/d/deepmedic/deepmedic-0.8.2-foss-2021a-CUDA-11.3.1.eb
@@ -10,7 +10,7 @@ description = "Efficient Multi-Scale 3D Convolutional Neural Network for Segment
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('TensorFlow', '2.6.0', versionsuffix),
     ('SciPy-bundle', '2021.05'),
diff --git a/easybuild/easyconfigs/d/dlib/dlib-19.22-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/d/dlib/dlib-19.22-foss-2021a-CUDA-11.3.1.eb
index e62049c61b8c..3448b11526f5 100644
--- a/easybuild/easyconfigs/d/dlib/dlib-19.22-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/d/dlib/dlib-19.22-foss-2021a-CUDA-11.3.1.eb
@@ -25,7 +25,7 @@ builddependencies = [
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('cuDNN', '8.2.1.32', versionsuffix, True),
 ]
 
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-10.2.0-Java-13.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-10.2.0-Java-13.eb
index eaf6f22dc124..e32b7fad6ce2 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-10.2.0-Java-13.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-10.2.0-Java-13.eb
@@ -42,7 +42,7 @@ builddependencies = [('CMake', '3.18.4')]
 dependencies = [
     ('X11', '20201008'),
     ('libharu', '2.3.0'),
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.2.0-2.31.1.eb
index a4cabd71a438..df004f43de00 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.2.0-2.31.1.eb
@@ -37,7 +37,7 @@ builddependencies = [('CMake', '3.13.3')]
 dependencies = [
     ('X11', '20190311'),
     ('libharu', '2.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.3.0-Java-11.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.3.0-Java-11.eb
index e34109b6a96f..aee6c64e90f3 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-GCC-8.3.0-Java-11.eb
@@ -42,7 +42,7 @@ builddependencies = [('CMake', '3.15.3')]
 dependencies = [
     ('X11', '20190717'),
     ('libharu', '2.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2018b.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2018b.eb
index 1e20c9bdaa44..ab468ed2c594 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2018b.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2018b.eb
@@ -36,7 +36,7 @@ builddependencies = [('CMake', '3.11.4')]
 dependencies = [
     ('X11', '20180604'),
     ('libharu', '2.3.0'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021a.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021a.eb
index 2b478b1b9ea1..11a7dcee8c2c 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021a.eb
@@ -39,7 +39,7 @@ builddependencies = [('CMake', '3.20.1')]
 dependencies = [
     ('X11', '20210518'),
     ('libharu', '2.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021b.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021b.eb
index 9471b613f8dc..84ecb49dc1eb 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021b.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-foss-2021b.eb
@@ -39,7 +39,7 @@ builddependencies = [('CMake', '3.22.1')]
 dependencies = [
     ('X11', '20210802'),
     ('libharu', '2.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
index 3a560dce5d22..c5ee371b0dbb 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
@@ -37,7 +37,7 @@ builddependencies = [('CMake', '3.13.3')]
 dependencies = [
     ('X11', '20190311'),
     ('libharu', '2.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2017a-X11-20170314.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2017a-X11-20170314.eb
index fc0789ffe30c..71a682b454ef 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2017a-X11-20170314.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2017a-X11-20170314.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('X11', local_x11ver),
     ('libgd', '2.2.4'),
     ('libharu', '2.3.0'),
-    ('Java', '1.8.0_144', '', True),
+    ('Java', '1.8.0_144', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2018b.eb b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2018b.eb
index 6c9d498a0a41..9da803147ab3 100644
--- a/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2018b.eb
+++ b/easybuild/easyconfigs/e/EMBOSS/EMBOSS-6.6.0-intel-2018b.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('X11', '20180604'),
     ('libgd', '2.2.5'),
     ('libharu', '2.3.0'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 configopts = " --with-hpdf=$EBROOTLIBHARU "
diff --git a/easybuild/easyconfigs/e/Embree/Embree-3.4.0-iccifort-2018.1.163-GCC-6.4.0-2.28.eb b/easybuild/easyconfigs/e/Embree/Embree-3.4.0-iccifort-2018.1.163-GCC-6.4.0-2.28.eb
index 328732419a32..8f17e9edb17e 100644
--- a/easybuild/easyconfigs/e/Embree/Embree-3.4.0-iccifort-2018.1.163-GCC-6.4.0-2.28.eb
+++ b/easybuild/easyconfigs/e/Embree/Embree-3.4.0-iccifort-2018.1.163-GCC-6.4.0-2.28.eb
@@ -21,7 +21,7 @@ checksums = ['22229f19332d4fd08eb3bf60198211bda674f51632b977c9d7fd09531e09dd8d']
 builddependencies = [('CMake', '3.11.4')]
 
 dependencies = [
-    ('ispc', '1.10.0', '', True),
+    ('ispc', '1.10.0', '', SYSTEM),
     ('tbb', '2018_U5'),
 ]
 
diff --git a/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-5.4.0.eb b/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-5.4.0.eb
index a00b575cac8e..4cf6ddc59a46 100644
--- a/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-5.4.0.eb
@@ -10,7 +10,7 @@ description = """Expat is an XML parser library written in C. It is a stream-ori
 toolchain = {'name': 'GCCcore', 'version': '5.4.0'}
 toolchainopts = {'pic': True}
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 source_urls = ['https://github.com/libexpat/libexpat/releases/download/R_%s/' % version.replace('.', '_')]
 sources = [SOURCE_TAR_BZ2]
diff --git a/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-6.3.0.eb b/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-6.3.0.eb
index e68f2d8d88ae..b897f140c890 100644
--- a/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/e/expat/expat-2.2.0-GCCcore-6.3.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCE_TAR_BZ2]
 checksums = ['d9e50ff2d19b3538bd2127902a89987474e1a4db8e43a66a4d1a712ab9a504ff']
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/expat.h', 'lib/libexpat.a', 'lib/libexpat.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/f/FMRIprep/FMRIprep-1.4.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/f/FMRIprep/FMRIprep-1.4.1-foss-2018b-Python-3.6.6.eb
index b12cefc9057f..81bb446518f4 100644
--- a/easybuild/easyconfigs/f/FMRIprep/FMRIprep-1.4.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/f/FMRIprep/FMRIprep-1.4.1-foss-2018b-Python-3.6.6.eb
@@ -17,8 +17,8 @@ dependencies = [
     ('FSL', '5.0.11', versionsuffix),
     ('ANTs', '2.3.1', versionsuffix),
     ('AFNI', '18.3.00', versionsuffix),
-    ('C3D', '1.0.0', '', True),
-    ('FreeSurfer', '6.0.1', '-centos6_x86_64', True),
+    ('C3D', '1.0.0', '', SYSTEM),
+    ('FreeSurfer', '6.0.1', '-centos6_x86_64', SYSTEM),
     ('ICA-AROMA', '0.4.4-beta', versionsuffix),
     ('Seaborn', '0.9.0', versionsuffix),
     ('PyYAML', '3.13', versionsuffix),
diff --git a/easybuild/easyconfigs/f/FSL/FSL-6.0.2-foss-2018b-Python-2.7.15-CUDA-9.2.88.eb b/easybuild/easyconfigs/f/FSL/FSL-6.0.2-foss-2018b-Python-2.7.15-CUDA-9.2.88.eb
index f96cf15c130d..e5ab2e466bfe 100644
--- a/easybuild/easyconfigs/f/FSL/FSL-6.0.2-foss-2018b-Python-2.7.15-CUDA-9.2.88.eb
+++ b/easybuild/easyconfigs/f/FSL/FSL-6.0.2-foss-2018b-Python-2.7.15-CUDA-9.2.88.eb
@@ -60,7 +60,7 @@ dependencies = [
     ('VTK', '8.1.1', local_python_suffix),
     ('GSL', '2.5'),
     ('Qwt', '6.1.4'),
-    ('CUDA', local_CUDA_ver, '', True),
+    ('CUDA', local_CUDA_ver, '', SYSTEM),
 ]
 
 # FSLDIR needs to be defined when running postinstall to get the correct shebang
diff --git a/easybuild/easyconfigs/f/FastFold/FastFold-20220729-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/f/FastFold/FastFold-20220729-foss-2021a-CUDA-11.3.1.eb
index 38ff91c345f5..2e329e07f19f 100644
--- a/easybuild/easyconfigs/f/FastFold/FastFold-20220729-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/f/FastFold/FastFold-20220729-foss-2021a-CUDA-11.3.1.eb
@@ -12,7 +12,7 @@ toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SciPy-bundle', '2021.05'),
     ('PyYAML', '5.4.1'),
     ('Biopython', '1.79'),
diff --git a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-1.8.eb b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-1.8.eb
index 9251dd408283..daee979d9db9 100644
--- a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-1.8.eb
+++ b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-1.8.eb
@@ -21,7 +21,7 @@ checksums = [
     '684701634440864750c9a0b99d81e122a1def78672d436daf5497bff61d9a356',  # FastQC_shebang.patch
 ]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 postinstallcmds = ["chmod +x %(installdir)s/fastqc"]
 
diff --git a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-11.eb b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-11.eb
index f075347905b2..ef747fd96256 100644
--- a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-11.eb
+++ b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.8-Java-11.eb
@@ -25,7 +25,7 @@ checksums = [
     '684701634440864750c9a0b99d81e122a1def78672d436daf5497bff61d9a356',  # FastQC_shebang.patch
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 postinstallcmds = ["chmod +x %(installdir)s/fastqc"]
 
diff --git a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.9-Java-11.eb b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.9-Java-11.eb
index bbe1b9f0240c..5fa46779ccc8 100644
--- a/easybuild/easyconfigs/f/FastQC/FastQC-0.11.9-Java-11.eb
+++ b/easybuild/easyconfigs/f/FastQC/FastQC-0.11.9-Java-11.eb
@@ -25,7 +25,7 @@ checksums = [
     '684701634440864750c9a0b99d81e122a1def78672d436daf5497bff61d9a356',  # FastQC_shebang.patch
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 postinstallcmds = ["chmod +x %(installdir)s/fastqc"]
 
diff --git a/easybuild/easyconfigs/f/FastViromeExplorer/FastViromeExplorer-20180422-foss-2019b.eb b/easybuild/easyconfigs/f/FastViromeExplorer/FastViromeExplorer-20180422-foss-2019b.eb
index 0fad82d9d444..e16acdff1545 100644
--- a/easybuild/easyconfigs/f/FastViromeExplorer/FastViromeExplorer-20180422-foss-2019b.eb
+++ b/easybuild/easyconfigs/f/FastViromeExplorer/FastViromeExplorer-20180422-foss-2019b.eb
@@ -14,7 +14,7 @@ sources = [{'download_filename': 'FastViromeExplorer-%s.tar.gz' % local_commit,
 checksums = ['3a8e7842e83539cd36f619f1e01761e2c5b87a44a5f51328287b6dd20ef47384']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('kallisto', '0.46.1'),
     ('SAMtools', '1.10'),
 ]
diff --git a/easybuild/easyconfigs/f/Ferret/Ferret-7.3-intel-2017b.eb b/easybuild/easyconfigs/f/Ferret/Ferret-7.3-intel-2017b.eb
index 3c6dcc5750c0..afc3e88aa32f 100644
--- a/easybuild/easyconfigs/f/Ferret/Ferret-7.3-intel-2017b.eb
+++ b/easybuild/easyconfigs/f/Ferret/Ferret-7.3-intel-2017b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('cURL', '7.56.0'),
     ('ncurses', '6.0'),
     ('libreadline', '7.0'),
-    ('Java', '1.8.0_152', '', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
 ]
 
 parallel = 1
diff --git a/easybuild/easyconfigs/f/Ferret/Ferret-7.5.0-foss-2019b.eb b/easybuild/easyconfigs/f/Ferret/Ferret-7.5.0-foss-2019b.eb
index 1b061234a1c5..ad0059c286ee 100644
--- a/easybuild/easyconfigs/f/Ferret/Ferret-7.5.0-foss-2019b.eb
+++ b/easybuild/easyconfigs/f/Ferret/Ferret-7.5.0-foss-2019b.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('cURL', '7.66.0'),
     ('ncurses', '6.1'),
     ('libreadline', '8.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 # /bin/csh is required for installation by bin/make_executable_tar, bin/make_environment_tar
diff --git a/easybuild/easyconfigs/f/Fiji/Fiji-20170530.eb b/easybuild/easyconfigs/f/Fiji/Fiji-20170530.eb
index b1a1a6b217bb..b7dd6766d3f1 100644
--- a/easybuild/easyconfigs/f/Fiji/Fiji-20170530.eb
+++ b/easybuild/easyconfigs/f/Fiji/Fiji-20170530.eb
@@ -14,7 +14,7 @@ source_urls = ['https://downloads.imagej.net/fiji/Life-Line/']
 sources = ['%(namelower)s-nojre-%(version)s.zip']
 checksums = ['cf9fb45c48b22a7888b479968477f1f7a300a9c833e47244cbe0d1e93890bd20']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 postinstallcmds = [
     # Remove binaries for other platforms
diff --git a/easybuild/easyconfigs/f/Fiji/Fiji-20191119-2057.eb b/easybuild/easyconfigs/f/Fiji/Fiji-20191119-2057.eb
index 3309bd66a456..c4f26af36804 100644
--- a/easybuild/easyconfigs/f/Fiji/Fiji-20191119-2057.eb
+++ b/easybuild/easyconfigs/f/Fiji/Fiji-20191119-2057.eb
@@ -17,7 +17,7 @@ sources = [{
 }]
 checksums = ['7fad8e8f8676edbcfe7eb979421ab163e8d48bb7950a815f7821cbe58b8bb051']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 postinstallcmds = [
     # Remove binaries for other platforms
diff --git a/easybuild/easyconfigs/f/Fiji/Fiji-20201104-1356.eb b/easybuild/easyconfigs/f/Fiji/Fiji-20201104-1356.eb
index efe07f936b30..aac8b8d8de9b 100644
--- a/easybuild/easyconfigs/f/Fiji/Fiji-20201104-1356.eb
+++ b/easybuild/easyconfigs/f/Fiji/Fiji-20201104-1356.eb
@@ -17,7 +17,7 @@ sources = [{
 }]
 checksums = ['ea60c212f0c123c2e947f0171b3a3ec83c38f0a6bd4c2bf2d5a5c53ba5e464cb']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 postinstallcmds = [
     # Remove binaries for other platforms
diff --git a/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.0.4-GCC-11.2.0.eb b/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.0.4-GCC-11.2.0.eb
index d84be83b2a1b..f779e1cdeace 100644
--- a/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.0.4-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.0.4-GCC-11.2.0.eb
@@ -17,7 +17,7 @@ builddependencies = [
     ('BLIS', '0.8.1'),
     # imkl is commented out, since installing it requires accepting the Intel oneAPI EULA;
     # note: also commented out the lines below to add imkl to 'backends'!
-    # ('imkl', {'arch=x86_64': '2021.4.0', 'arch=*': False}, '', True),
+    # ('imkl', {'arch=x86_64': '2021.4.0', 'arch=*': False}, '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/FreeTDS/FreeTDS-1.3.3-GCCcore-10.3.0.eb b/easybuild/easyconfigs/f/FreeTDS/FreeTDS-1.3.3-GCCcore-10.3.0.eb
index e56c85b532cc..8467c1d6f610 100644
--- a/easybuild/easyconfigs/f/FreeTDS/FreeTDS-1.3.3-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/f/FreeTDS/FreeTDS-1.3.3-GCCcore-10.3.0.eb
@@ -22,7 +22,7 @@ builddependencies = [
 
 dependencies = [
     ('libreadline', '8.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-openssl'
diff --git a/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.20-foss-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.20-foss-2019b-Python-2.7.16.eb
index 5db5fc0424e0..6d3a32e9eac0 100644
--- a/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.20-foss-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.20-foss-2019b-Python-2.7.16.eb
@@ -13,7 +13,7 @@ github_account = 'ndaniel'
 toolchain = {'name': 'foss', 'version': '2019b'}
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '2.7.16'),
     ('SciPy-bundle', '2019.10', versionsuffix),
     ('Biopython', '1.75', versionsuffix),
@@ -24,7 +24,7 @@ dependencies = [
     ('Kent_tools', '401'),  # required for liftOver
     ('SRA-Toolkit', '2.10.4'),
     ('STAR', '2.7.2b'),
-    ('picard', '2.21.6', '-Java-11', True),  # optional
+    ('picard', '2.21.6', '-Java-11', SYSTEM),  # optional
     ('Velvet', '1.2.10', '-mt-kmer_191'),  # optional
     ('openpyxl', '2.6.4', versionsuffix),  # optional
     ('parallel', '20190922'),  # optional
diff --git a/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.30-foss-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.30-foss-2019b-Python-2.7.16.eb
index 1f85b510834a..19f5df4c694d 100644
--- a/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.30-foss-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/f/FusionCatcher/FusionCatcher-1.30-foss-2019b-Python-2.7.16.eb
@@ -13,7 +13,7 @@ github_account = 'ndaniel'
 toolchain = {'name': 'foss', 'version': '2019b'}
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '2.7.16'),
     ('SciPy-bundle', '2019.10', versionsuffix),
     ('Biopython', '1.75', versionsuffix),
@@ -24,7 +24,7 @@ dependencies = [
     ('Kent_tools', '401'),  # required for liftOver
     ('SRA-Toolkit', '2.10.4'),
     ('STAR', '2.7.2b'),
-    ('picard', '2.21.6', '-Java-11', True),  # optional
+    ('picard', '2.21.6', '-Java-11', SYSTEM),  # optional
     ('Velvet', '1.2.10', '-mt-kmer_191'),  # optional
     ('openpyxl', '2.6.4', versionsuffix),  # optional
     ('parallel', '20190922'),  # optional
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.1.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.1.0.eb
index e615af45793f..b0c78713c4d0 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.1.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.6.1'),
     ('help2man', '1.47.15'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.2.0.eb
index d6bae199dd32..f9dd97bb264c 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.7.1'),
     ('help2man', '1.47.16'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.35', '', True),
+    ('binutils', '2.35', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.3.0.eb
index cf9480607818..9c8be6a96164 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-10.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.7.6'),
     ('help2man', '1.48.3'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.1.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.1.0.eb
index 4ca376c2d435..0b7ca6dcc6ab 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.1.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.7.6'),
     ('help2man', '1.48.3'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.2.0.eb
index bd40de3b73de..78207419ed10 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.7.6'),
     ('help2man', '1.48.3'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.37', '', True),
+    ('binutils', '2.37', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.3.0.eb
index c0e17568f86d..dcf62626f8b5 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-11.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.8.2'),
     ('help2man', '1.49.2'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.1.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.1.0.eb
index b515d9c39a5f..98d514c2d780 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.1.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.8.2'),
     ('help2man', '1.49.2'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.2.0.eb
index b953ed29dab1..63776909de08 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-12.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.8.2'),
     ('help2man', '1.49.2'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.39', '', True),
+    ('binutils', '2.39', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-5.5.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-5.5.0.eb
index ffa930b4898d..6e2346cb45ad 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-5.5.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.5'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.3.0.eb
index 20fcbab0a054..9f150f124f78 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.3.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.4'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
 ]
 
 # glibc 2.26 requires _GNU_SOURCE defined to expose reallocarray in the correct
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.4.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.4.0.eb
index 17af2c37c99f..9879fbf3e84e 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-6.4.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.4'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.2.0.eb
index 85ed2ec7911a..e22e13913597 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.4'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.29', '', True),
+    ('binutils', '2.29', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.3.0.eb
index 94729110abe4..aed4ab614242 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.4'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.4.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.4.0.eb
index ae0550f73c3a..179da80d419d 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-7.4.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.2.2'),
     ('help2man', '1.47.8'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.1.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.1.0.eb
index ac19425d0d42..92b958e6a97e 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.1.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.6'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.2.0.eb
index 01fb067c9979..059e88ff05cb 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.0.5'),
     ('help2man', '1.47.7'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.3.0.eb
index f5fc0ba9248f..11a535f092d5 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.3.2'),
     ('help2man', '1.47.8'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.4.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.4.0.eb
index 36aad7de33d7..39338043fd8b 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-8.4.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.3.2'),
     ('help2man', '1.47.8'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.1.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.1.0.eb
index 256f72bf9e9d..b1e5c067383a 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.1.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.3.2'),
     ('help2man', '1.47.10'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.2.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.2.0.eb
index 6a58f80946f9..de9e537294f1 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.2.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.3.2'),
     ('help2man', '1.47.10'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.3.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.3.0.eb
index 5f380c6db6e7..f61ebc628c76 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.3.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.5.3'),
     ('help2man', '1.47.12'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.4.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.4.0.eb
index 7d4dffd6bd2d..6cae0620be3f 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.4.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.7.6'),
     ('help2man', '1.48.3'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.5.0.eb b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.5.0.eb
index 56f3743d5ab2..24974f71c4d9 100644
--- a/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/f/flex/flex-2.6.4-GCCcore-9.5.0.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('Bison', '3.8.2'),
     ('help2man', '1.49.2'),
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/f/freetype/freetype-2.6.5-GCCcore-5.4.0.eb b/easybuild/easyconfigs/f/freetype/freetype-2.6.5-GCCcore-5.4.0.eb
index 266f40adb091..191eede5cf56 100644
--- a/easybuild/easyconfigs/f/freetype/freetype-2.6.5-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/f/freetype/freetype-2.6.5-GCCcore-5.4.0.eb
@@ -18,7 +18,7 @@ dependencies = [
     ('zlib', '1.2.8'),
 ]
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 configopts = '--with-harfbuzz=no'
 
diff --git a/easybuild/easyconfigs/f/freetype/freetype-2.7.1-GCCcore-6.3.0.eb b/easybuild/easyconfigs/f/freetype/freetype-2.7.1-GCCcore-6.3.0.eb
index a9afba8996da..f8625f2b6ebc 100644
--- a/easybuild/easyconfigs/f/freetype/freetype-2.7.1-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/f/freetype/freetype-2.7.1-GCCcore-6.3.0.eb
@@ -19,7 +19,7 @@ dependencies = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 configopts = '--with-harfbuzz=no'
 
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.10.0-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.10.0-foss-2018b-Python-3.6.6.eb
index f77438c30551..08f154e2df5f 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.10.0-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.10.0-foss-2018b-Python-3.6.6.eb
@@ -39,7 +39,7 @@ checksums = ['6a149750dfcdb250e07198cf1726d2f0958d2b8f257618b3b585194c4c392283']
 
 dependencies = [
     ('Python', '3.6.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.12.0-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.12.0-foss-2018b-Python-3.6.6.eb
index 389c8248e1ef..2b2f1c7f9169 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.12.0-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.12.0-foss-2018b-Python-3.6.6.eb
@@ -35,7 +35,7 @@ checksums = ['733134303f4961dec589247ff006612b7a94171fab8913c5d44c836aa086865f']
 
 dependencies = [
     ('Python', '3.6.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-2.7.14.eb
index 4a926a82dd93..5b5158ceae21 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-2.7.14.eb
@@ -34,7 +34,7 @@ checksums = ['801bbb181c275cfabc96dc0cb21f3f901634cec11efde9ba9c8b91e2834feef4']
 
 dependencies = [
     ('Python', '2.7.14'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-3.6.4.eb
index 597a6f976c62..f1cff8ec83ef 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.4.0-intel-2018a-Python-3.6.4.eb
@@ -34,7 +34,7 @@ checksums = ['801bbb181c275cfabc96dc0cb21f3f901634cec11efde9ba9c8b91e2834feef4']
 
 dependencies = [
     ('Python', '3.6.4'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.5.1-foss-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.5.1-foss-2018a-Python-3.6.4.eb
index c6bfdc3bc562..0eb7cbd64a42 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.5.1-foss-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.5.1-foss-2018a-Python-3.6.4.eb
@@ -35,7 +35,7 @@ checksums = ['3847f540beeb02651f0cf8f14bb0c6ed4e837f1ea73bc6d04cbe38d217c1b25f']
 
 dependencies = [
     ('Python', '3.6.4'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-2.7.14.eb
index e82571bce370..ba6dfc0ee3ad 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-2.7.14.eb
@@ -35,7 +35,7 @@ checksums = ['9dda57e82471e67151a442c4751308b6db4e88db315b2f5ed10a41f0b2acbf7c']
 
 dependencies = [
     ('Python', '2.7.14'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-3.6.4.eb
index 4570b7031c68..0a969762ea53 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.7.0-intel-2018a-Python-3.6.4.eb
@@ -35,7 +35,7 @@ checksums = ['9dda57e82471e67151a442c4751308b6db4e88db315b2f5ed10a41f0b2acbf7c']
 
 dependencies = [
     ('Python', '3.6.4'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-2.7.15.eb
index 77b1b7f821b7..ced47b570c52 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-2.7.15.eb
@@ -35,7 +35,7 @@ checksums = ['e4bb082d8c8826d4f8bc8c2f83811d0e81e5088b99099d3396d284f82fbf28c9']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-3.6.6.eb
index 7e9fea1dd4bf..2007bd75f4d3 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.0.8.1-foss-2018b-Python-3.6.6.eb
@@ -35,7 +35,7 @@ checksums = ['e4bb082d8c8826d4f8bc8c2f83811d0e81e5088b99099d3396d284f82fbf28c9']
 
 dependencies = [
     ('Python', '3.6.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.0.0-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.0.0-foss-2018b-Python-3.6.6.eb
index d559c597928a..a883aa385e92 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.0.0-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.0.0-foss-2018b-Python-3.6.6.eb
@@ -35,7 +35,7 @@ checksums = ['148aa061328d922a570d0120d88f27e61e5da877f542206f4d77f2d788b7d21d']
 
 dependencies = [
     ('Python', '3.6.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.2.0-GCCcore-8.2.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.2.0-GCCcore-8.2.0-Java-1.8.eb
index 259b1fc261cc..48b0ca81c08c 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.2.0-GCCcore-8.2.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.2.0-GCCcore-8.2.0-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['ffc5f9b3d4b35772ee5dac3060b59dc657f30e830745160671d84d732c30dc65']
 multi_deps = {'Python': ['3.7.2', '2.7.15']}
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.3.0-GCCcore-8.3.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.3.0-GCCcore-8.3.0-Java-1.8.eb
index dd822ef87257..988b75dedf0b 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.3.0-GCCcore-8.3.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.3.0-GCCcore-8.3.0-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['56fd4f03b15a8a01eaa4629f62e3ab15e4d4b957c787efd2d5629b2658c3df0a']
 multi_deps = {'Python': ['3.7.4', '2.7.16']}
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-1.8.eb
index 6e29aeb7a94f..59f9839ebb30 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['21ae694cfc8b7447381ad5ce62ed4af22e53a228b12495bdcca7df0c73b09cea']
 multi_deps = {'Python': ['3.7.4', '2.7.16']}
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-11.eb
index 6f9d693a6ff5..105c7c506f8d 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.4.1-GCCcore-8.3.0-Java-11.eb
@@ -36,7 +36,7 @@ checksums = ['21ae694cfc8b7447381ad5ce62ed4af22e53a228b12495bdcca7df0c73b09cea']
 multi_deps = {'Python': ['3.7.4', '2.7.16']}
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-1.8.eb
index d0ea17e17439..4296a3c10493 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['6fc152c2cae0cc54c7c4cfdfd865a64f7054a820f7d02ca2549511af1dd9882b']
 multi_deps = {'Python': ['3.8.2', '2.7.18']}
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-11.eb
index 03050c2a5c7c..007404e13922 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.5.0-GCCcore-9.3.0-Java-11.eb
@@ -36,7 +36,7 @@ checksums = ['6fc152c2cae0cc54c7c4cfdfd865a64f7054a820f7d02ca2549511af1dd9882b']
 multi_deps = {'Python': ['3.8.2', '2.7.18']}
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.1.8.1-GCCcore-9.3.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.1.8.1-GCCcore-9.3.0-Java-1.8.eb
index 18bc80619655..f93742a90634 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.1.8.1-GCCcore-9.3.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.1.8.1-GCCcore-9.3.0-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['42e6de5059232df1ad5785c68c39a53dc1b54afe7bb086d0129f4dc95fb182bc']
 multi_deps = {'Python': ['3.8.2', '2.7.18']}
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modextrapaths = {'PATH': ''}
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-1.8.eb b/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-1.8.eb
index 610d9d24aa13..097bd00e48fd 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-1.8.eb
@@ -34,7 +34,7 @@ sources = ['gatk-%(version)s.zip']
 checksums = ['dd11cc8e3bc7a23c2c226366428f0908c902765eabbc1c641c736c06b80aaf78']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Python', '3.8.6'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-11.eb
index f11ab541250a..515f6cea9b14 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.2.0.0-GCCcore-10.2.0-Java-11.eb
@@ -34,7 +34,7 @@ sources = ['gatk-%(version)s.zip']
 checksums = ['dd11cc8e3bc7a23c2c226366428f0908c902765eabbc1c641c736c06b80aaf78']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.8.6'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.2.3.0-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.2.3.0-GCCcore-11.2.0-Java-11.eb
index cd0447168d90..e965471f65a4 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.2.3.0-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.2.3.0-GCCcore-11.2.0-Java-11.eb
@@ -35,7 +35,7 @@ sources = ['gatk-%(version)s.zip']
 checksums = ['12fbd03142311419a050dba8009d615ee8faceb32b46aad8f4448dafd61e11eb']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.6'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.2.5.0-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.2.5.0-GCCcore-11.2.0-Java-11.eb
index 49709d4a3766..d9e3451ed2f3 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.2.5.0-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.2.5.0-GCCcore-11.2.0-Java-11.eb
@@ -35,7 +35,7 @@ sources = ['gatk-%(version)s.zip']
 checksums = ['203f17868f0a73a8322d2f8bd568b9f7b4bb81e36d37db5b6a142d8050ef049f']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.6'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GATK/GATK-4.2.6.1-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/g/GATK/GATK-4.2.6.1-GCCcore-11.2.0-Java-11.eb
index 3b8c9ff85d58..1d4af9b33987 100644
--- a/easybuild/easyconfigs/g/GATK/GATK-4.2.6.1-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/GATK/GATK-4.2.6.1-GCCcore-11.2.0-Java-11.eb
@@ -35,7 +35,7 @@ sources = ['gatk-%(version)s.zip']
 checksums = ['1125cfc862301d437310506c8774d36c3a90d00d52c7b5d6b59dac7241203628']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.6'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.1.1.eb b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.1.1.eb
index ecc2aa7e0a65..c99c15a13e45 100644
--- a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.1.1.eb
+++ b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.1.1.eb
@@ -23,7 +23,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDAcore', local_cudaversion, '', True),  # needed by GDRCopy binaries, which are tools for testing
+    ('CUDAcore', local_cudaversion, '', SYSTEM),  # needed by GDRCopy binaries, which are tools for testing
     ('Check', '0.15.2'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.2.1.eb b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.2.1.eb
index 4e78c65fb6ba..accc04a5bde6 100644
--- a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.2.1.eb
+++ b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-10.2.0-CUDA-11.2.1.eb
@@ -23,7 +23,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDAcore', local_cudaversion, '', True),  # needed by GDRCopy binaries, which are tools for testing
+    ('CUDAcore', local_cudaversion, '', SYSTEM),  # needed by GDRCopy binaries, which are tools for testing
     ('Check', '0.15.2'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-9.3.0-CUDA-11.0.2.eb b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-9.3.0-CUDA-11.0.2.eb
index 63ed61f61500..864159cc441d 100644
--- a/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-9.3.0-CUDA-11.0.2.eb
+++ b/easybuild/easyconfigs/g/GDRCopy/GDRCopy-2.1-GCCcore-9.3.0-CUDA-11.0.2.eb
@@ -23,7 +23,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDAcore', local_cudaversion, '', True),
+    ('CUDAcore', local_cudaversion, '', SYSTEM),
     ('Check', '0.15.2'),
 ]
 
diff --git a/easybuild/easyconfigs/g/GEMMA/GEMMA-0.97-foss-2016b.eb b/easybuild/easyconfigs/g/GEMMA/GEMMA-0.97-foss-2016b.eb
index 8606dd48d2ab..66240220c015 100644
--- a/easybuild/easyconfigs/g/GEMMA/GEMMA-0.97-foss-2016b.eb
+++ b/easybuild/easyconfigs/g/GEMMA/GEMMA-0.97-foss-2016b.eb
@@ -18,7 +18,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['9b22a61f01af27e60d483cb7bca73e397d8ca4719c741349a8551984c6c33976']
 
 builddependencies = [
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/g/GEMMA/GEMMA-0.98.1-foss-2018b.eb b/easybuild/easyconfigs/g/GEMMA/GEMMA-0.98.1-foss-2018b.eb
index 4824b4d661d1..149f74bea8fe 100644
--- a/easybuild/easyconfigs/g/GEMMA/GEMMA-0.98.1-foss-2018b.eb
+++ b/easybuild/easyconfigs/g/GEMMA/GEMMA-0.98.1-foss-2018b.eb
@@ -18,7 +18,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['6beeed4a9e727a96fdea9e86e39bbe9cbc9f0540ad3a1053814e95b0863a7e6b']
 
 builddependencies = [
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-foss-2019b-Python-3.7.4.eb
index 06c705f51cb7..67b6ba7a5f0c 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-foss-2019b-Python-3.7.4.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('ASE', '3.19.0', versionsuffix),
     ('libxc', '4.3.4'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-intel-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-intel-2019b-Python-3.7.4.eb
index fc6b25cdb3d2..e2df43f33a32 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-intel-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.1.0-intel-2019b-Python-3.7.4.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('SciPy-bundle', '2019.10', versionsuffix),
     ('ASE', '3.19.0', versionsuffix),
     ('libxc', '4.3.4'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2019b-ASE-3.20.1-Python-3.7.4.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2019b-ASE-3.20.1-Python-3.7.4.eb
index 31e4e602dc0a..3226c8a9acab 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2019b-ASE-3.20.1-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2019b-ASE-3.20.1-Python-3.7.4.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('ASE', _aseversion, _pythonsuffix),
     ('libxc', '4.3.4'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2020b.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2020b.eb
index 1b322074614f..6758eb60891e 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2020b.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-foss-2020b.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('ASE', '3.20.1'),
     ('libxc', '4.3.4'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2019b-ASE-3.20.1-Python-3.7.4.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2019b-ASE-3.20.1-Python-3.7.4.eb
index 7535f24c1a01..d19ddaf4ded0 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2019b-ASE-3.20.1-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2019b-ASE-3.20.1-Python-3.7.4.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('SciPy-bundle', '2019.10', _pythonsuffix),
     ('ASE', _aseversion, _pythonsuffix),
     ('libxc', '4.3.4'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2020b.eb b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2020b.eb
index 861a80e2fd1b..0714f4060f19 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2020b.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-20.10.0-intel-2020b.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('SciPy-bundle', '2020.11'),
     ('ASE', '3.20.1'),
     ('libxc', '4.3.4'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-foss-2020b-ASE-3.21.1.eb b/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-foss-2020b-ASE-3.21.1.eb
index 7a2e4989e8aa..7c8887230003 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-foss-2020b-ASE-3.21.1.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-foss-2020b-ASE-3.21.1.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('ASE', _aseversion),
     ('libxc', '4.3.4'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-intel-2020b-ASE-3.21.1.eb b/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-intel-2020b-ASE-3.21.1.eb
index 1f22f89cc835..978ddc9ef575 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-intel-2020b-ASE-3.21.1.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-21.1.0-intel-2020b-ASE-3.21.1.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('SciPy-bundle', '2020.11'),
     ('ASE', _aseversion),
     ('libxc', '4.3.4'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2020b-ASE-3.22.0.eb b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2020b-ASE-3.22.0.eb
index 582e90ea73b3..465fd9c9b073 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2020b-ASE-3.22.0.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2020b-ASE-3.22.0.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('ASE', _aseversion),
     ('libxc', '4.3.4'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2021a.eb b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2021a.eb
index 4abf305f2a67..2abce4c3ad28 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-foss-2021a.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('ASE', '3.22.0'),
     ('libxc', '5.1.5'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-intel-2020b-ASE-3.22.0.eb b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-intel-2020b-ASE-3.22.0.eb
index bba61ad12097..56885619470b 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-intel-2020b-ASE-3.22.0.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-21.6.0-intel-2020b-ASE-3.22.0.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('SciPy-bundle', '2020.11'),
     ('ASE', _aseversion),
     ('libxc', '4.3.4'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2021b.eb b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2021b.eb
index e3d8e921b48b..cc8928a6e812 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2021b.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2021b.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('libxc', '5.1.6'),
     ('PyYAML', '5.4.1'),
     ('libvdwxc', '0.4.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2022a.eb b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2022a.eb
index b400a2bd2c38..a5bf81c6abc3 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2022a.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-foss-2022a.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('libxc', '5.2.3'),
     ('libvdwxc', '0.4.0'),
     ('PyYAML', '6.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_foss.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2021b.eb b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2021b.eb
index 1ca56803196a..343180bbb517 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2021b.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2021b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('ASE', '3.22.1'),
     ('libxc', '5.1.6'),
     ('PyYAML', '5.4.1'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2022a.eb b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2022a.eb
index 58087303e00d..126147e70d50 100644
--- a/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2022a.eb
+++ b/easybuild/easyconfigs/g/GPAW/GPAW-22.8.0-intel-2022a.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('ASE', '3.22.1'),
     ('libxc', '5.2.3'),
     ('PyYAML', '6.0'),
-    ('GPAW-setups', '0.9.20000', '', True),
+    ('GPAW-setups', '0.9.20000', '', SYSTEM),
 ]
 
 prebuildopts = 'GPAW_CONFIG=doc/platforms/Linux/EasyBuild/config_intel.py'
diff --git a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1-PLUMED-2.7.2.eb b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1-PLUMED-2.7.2.eb
index aa8b7a249fd2..60b10be1dafc 100644
--- a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1-PLUMED-2.7.2.eb
+++ b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1-PLUMED-2.7.2.eb
@@ -69,7 +69,7 @@ dependencies = [
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('networkx', '2.5.1'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('PLUMED', _plumedver),
     ('UCX-CUDA', '1.10.0', _cuda_suffix),
 ]
diff --git a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1.eb
index a3519c9ca334..88ab48e3311f 100644
--- a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.3-foss-2021a-CUDA-11.3.1.eb
@@ -65,7 +65,7 @@ dependencies = [
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('networkx', '2.5.1'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('UCX-CUDA', '1.10.0', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1-PLUMED-2.8.0.eb b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1-PLUMED-2.8.0.eb
index bbe65cdd01e4..f54123b4866d 100644
--- a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1-PLUMED-2.8.0.eb
+++ b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1-PLUMED-2.8.0.eb
@@ -74,7 +74,7 @@ dependencies = [
     ('SciPy-bundle', '2021.10'),
     ('networkx', '2.6.3'),
     ('PLUMED', _plumedver),
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('UCX-CUDA', '1.11.2', _cuda_suffix),
 ]
 
diff --git a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1.eb
index 3226925397df..2ae42d897ca6 100644
--- a/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/g/GROMACS/GROMACS-2021.5-foss-2021b-CUDA-11.4.1.eb
@@ -66,7 +66,7 @@ dependencies = [
     ('Python', '3.9.6'),
     ('SciPy-bundle', '2021.10'),
     ('networkx', '2.6.3'),
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('UCX-CUDA', '1.11.2', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2016a.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2016a.eb
index 083ad67f2798..b3f086375fe8 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2016a.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2016a.eb
@@ -19,7 +19,7 @@ dependencies = [('GStreamer', '0.10.36')]
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2018b.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2018b.eb
index 74bd62f7515b..b77d7997cff3 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2018b.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-foss-2018b.eb
@@ -21,7 +21,7 @@ dependencies = [
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016a.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016a.eb
index 23b2a931e085..7c60f6003765 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016a.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016a.eb
@@ -19,7 +19,7 @@ dependencies = [('GStreamer', '0.10.36')]
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016b.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016b.eb
index 60907564e6e2..37624651adc5 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016b.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2016b.eb
@@ -19,7 +19,7 @@ dependencies = [('GStreamer', '0.10.36')]
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2017a.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2017a.eb
index 858a8095477f..d7288a32abae 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2017a.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-0.10.36-intel-2017a.eb
@@ -19,7 +19,7 @@ dependencies = [('GStreamer', '0.10.36')]
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.6.4-foss-2016a.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.6.4-foss-2016a.eb
index 663148178bcf..69edf4e58799 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.6.4-foss-2016a.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.6.4-foss-2016a.eb
@@ -18,7 +18,7 @@ checksums = ['7a193e2a66b0d7411160ef2a373184c8aa3cdeaa576fa270be346716220d9606']
 dependencies = [('GStreamer', '1.6.4')]
 
 builddependencies = [
-    ('Bison', '3.0.4', '', True),
+    ('Bison', '3.0.4', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.8.3-foss-2016a.eb b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.8.3-foss-2016a.eb
index 0c4cb354f0cb..178b50575df8 100644
--- a/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.8.3-foss-2016a.eb
+++ b/easybuild/easyconfigs/g/GST-plugins-base/GST-plugins-base-1.8.3-foss-2016a.eb
@@ -23,7 +23,7 @@ dependencies = [
 builddependencies = [
     ('Autotools', '20150215'),
     ('pkg-config', '0.29.1'),
-    ('Bison', '3.0.4', '', True),
+    ('Bison', '3.0.4', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2016a.eb b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2016a.eb
index 31e79963a2f6..c3a7851b6789 100644
--- a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2016a.eb
+++ b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2016a.eb
@@ -23,7 +23,7 @@ dependencies = [
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2018b.eb b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2018b.eb
index 941ced47c5b0..dd3738d82c96 100644
--- a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2018b.eb
+++ b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-foss-2018b.eb
@@ -23,8 +23,8 @@ dependencies = [
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('flex', '2.6.4', '', True),
-    ('Bison', '2.7', '', True),
+    ('flex', '2.6.4', '', SYSTEM),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016a.eb b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016a.eb
index 49d0445dfd46..fd95931f5df7 100644
--- a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016a.eb
+++ b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016a.eb
@@ -23,7 +23,7 @@ dependencies = [
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016b.eb b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016b.eb
index df0cc749083b..d24fcda642aa 100644
--- a/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016b.eb
+++ b/easybuild/easyconfigs/g/GStreamer/GStreamer-0.10.36-intel-2016b.eb
@@ -23,7 +23,7 @@ dependencies = [
 
 # does not work with Bison 3.x
 builddependencies = [
-    ('Bison', '2.7', '', True),
+    ('Bison', '2.7', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GStreamer/GStreamer-1.6.4-foss-2016a.eb b/easybuild/easyconfigs/g/GStreamer/GStreamer-1.6.4-foss-2016a.eb
index 0fd9f6375751..c7044fe55921 100644
--- a/easybuild/easyconfigs/g/GStreamer/GStreamer-1.6.4-foss-2016a.eb
+++ b/easybuild/easyconfigs/g/GStreamer/GStreamer-1.6.4-foss-2016a.eb
@@ -22,7 +22,7 @@ dependencies = [
 ]
 
 builddependencies = [
-    ('Bison', '3.0.4', '', True),
+    ('Bison', '3.0.4', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.0.2-intel-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.0.2-intel-2019b-Python-3.7.4.eb
index a3ec2738504b..c35fe8da4a62 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.0.2-intel-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.0.2-intel-2019b-Python-3.7.4.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('matplotlib', '3.1.1', versionsuffix),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.2.1'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.3'),
     ('FastTree', '2.1.11'),
 ]
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.3.0-intel-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.3.0-intel-2020a-Python-3.8.2.eb
index 54dc20a75fc3..13e7349e42f4 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.3.0-intel-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.3.0-intel-2020a-Python-3.8.2.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('matplotlib', '3.2.1', versionsuffix),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.1'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.31'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.47.0'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.5.0-intel-2020b.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.5.0-intel-2020b.eb
index 0ff0be7b625a..5f2ae4734696 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.5.0-intel-2020b.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.5.0-intel-2020b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.3.3'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.56.2'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2020b.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2020b.eb
index d0bc5d3e5264..d40e1ff699c8 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2020b.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2020b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.3.3'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.56.2'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2021a.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2021a.eb
index 05e89644664d..8022a696c23d 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-foss-2021a.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.4.2'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.61.2'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-intel-2020b.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-intel-2020b.eb
index 2e0232fed40e..4d81bd500b96 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-intel-2020b.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-1.7.0-intel-2020b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.3.3'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.56.2'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-foss-2021a.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-foss-2021a.eb
index 3d85efa5db70..741d72ebed06 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-foss-2021a.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.4.2'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('Mash', '2.3'),
diff --git a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-intel-2021b.eb b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-intel-2021b.eb
index f1bc9b730fe9..d7ed1a255168 100644
--- a/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-intel-2021b.eb
+++ b/easybuild/easyconfigs/g/GTDB-Tk/GTDB-Tk-2.0.0-intel-2021b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('matplotlib', '3.4.3'),
     ('prodigal', '2.6.3'),
     ('HMMER', '3.3.2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('FastANI', '1.33'),
     ('FastTree', '2.1.11'),
     ('tqdm', '4.62.3'),
diff --git a/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.2-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.2-foss-2020a-Python-3.8.2.eb
index 1e00e8c37de3..112304a7a38b 100644
--- a/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.2-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.2-foss-2020a-Python-3.8.2.eb
@@ -15,7 +15,7 @@ checksums = ['54923ca971d68620aaf036a324b554084b00f7c209b0b3a234f815c82ee6d079']
 
 dependencies = [
     ('Python', '3.8.2'),
-    ('Bandage', '0.8.1', '_Centos', True),
+    ('Bandage', '0.8.1', '_Centos', SYSTEM),
     ('SciPy-bundle', '2020.03', versionsuffix),
     ('sympy', '1.6.2', versionsuffix),
     ('SPAdes', '3.14.1', versionsuffix),
diff --git a/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.4-pre2-foss-2020b.eb b/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.4-pre2-foss-2020b.eb
index 095a77b88cf9..2eabe89e5246 100644
--- a/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.4-pre2-foss-2020b.eb
+++ b/easybuild/easyconfigs/g/GetOrganelle/GetOrganelle-1.7.4-pre2-foss-2020b.eb
@@ -15,7 +15,7 @@ checksums = ['ee3dc807e0fb59c1788717a155238115d7a860191f686ef2c5a5b685aa2a2948']
 
 dependencies = [
     ('Python', '3.8.6'),
-    ('Bandage', '0.8.1', '_Centos', True),
+    ('Bandage', '0.8.1', '_Centos', SYSTEM),
     ('SciPy-bundle', '2020.11'),
     ('sympy', '1.7.1'),
     ('SPAdes', '3.15.2'),
diff --git a/easybuild/easyconfigs/g/Globus-CLI/Globus-CLI-3.1.1-GCCcore-10.2.0.eb b/easybuild/easyconfigs/g/Globus-CLI/Globus-CLI-3.1.1-GCCcore-10.2.0.eb
index b8e860947db0..65e2cb11638c 100644
--- a/easybuild/easyconfigs/g/Globus-CLI/Globus-CLI-3.1.1-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/g/Globus-CLI/Globus-CLI-3.1.1-GCCcore-10.2.0.eb
@@ -16,7 +16,7 @@ builddependencies = [
 
 dependencies = [
     ('Python', '3.8.6'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/g/Go/Go-1.12.1-GCCcore-7.3.0.eb b/easybuild/easyconfigs/g/Go/Go-1.12.1-GCCcore-7.3.0.eb
index efe696b49847..da1e8ab0a6a2 100644
--- a/easybuild/easyconfigs/g/Go/Go-1.12.1-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/g/Go/Go-1.12.1-GCCcore-7.3.0.eb
@@ -17,7 +17,7 @@ checksums = ['0be127684df4b842a64e58093154f9d15422f1405f1fcff4b2c36ffc6a15818a']
 builddependencies = [
     ('binutils', '2.30'),
     # go requires Go to install from source, see https://golang.org/doc/install/source
-    ('Go', '1.12', '', True),
+    ('Go', '1.12', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b-Python-2.7.15.eb
index 3393732425c6..062902b979af 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b-Python-2.7.15.eb
@@ -54,7 +54,7 @@ dependencies = [
     ('Gdk-Pixbuf', '2.36.12'),
     ('Ghostscript', '9.23'),
     ('GTS', '0.7.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Pango', '1.42.4'),
     ('Perl', '5.28.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b.eb
index dad37c034a92..15a13ec70783 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-foss-2018b.eb
@@ -51,7 +51,7 @@ dependencies = [
     ('Gdk-Pixbuf', '2.36.12'),
     ('Ghostscript', '9.23'),
     ('GTS', '0.7.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Pango', '1.42.4'),
     ('Perl', '5.28.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-intel-2018a.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-intel-2018a.eb
index ae0ee795432a..604d4417f174 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-intel-2018a.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.40.1-intel-2018a.eb
@@ -41,7 +41,7 @@ dependencies = [
     ('freetype', '2.9'),
     ('Ghostscript', '9.22', '-cairo-1.14.12'),
     ('GTS', '0.7.6'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('libpng', '1.6.34'),
     ('Pango', '1.41.1'),
     ('Perl', '5.26.1'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-GCCcore-8.3.0-Java-11.eb
index bc1b89f5f650..7ac2a75670e4 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-GCCcore-8.3.0-Java-11.eb
@@ -40,7 +40,7 @@ dependencies = [
     ('Gdk-Pixbuf', '2.38.2'),
     ('Ghostscript', '9.50'),
     ('GTS', '0.7.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Pango', '1.44.7'),
     ('Perl', '5.30.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b-Python-3.7.4.eb
index 1ca2e2d47440..26ac994d0371 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b-Python-3.7.4.eb
@@ -44,7 +44,7 @@ dependencies = [
     ('Gdk-Pixbuf', '2.38.2'),
     ('Ghostscript', '9.50'),
     ('GTS', '0.7.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Pango', '1.44.7'),
     ('Perl', '5.30.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b.eb
index def5b531355a..bd1974fc84c3 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.42.2-foss-2019b.eb
@@ -38,7 +38,7 @@ dependencies = [
     ('Gdk-Pixbuf', '2.38.2'),
     ('Ghostscript', '9.50'),
     ('GTS', '0.7.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Pango', '1.44.7'),
     ('Perl', '5.30.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb
index ac21ce695d21..f19b861f72c0 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb
@@ -33,7 +33,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.8.2'),
     ('FriBidi', '1.0.9'),
     ('Gdk-Pixbuf', '2.40.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb
index 5d7b20ee277c..e532aad271a9 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb
@@ -32,7 +32,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('FriBidi', '1.0.9'),
     ('Gdk-Pixbuf', '2.40.0'),
     ('Ghostscript', '9.52'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.0-GCCcore-10.2.0-Java-11.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.0-GCCcore-10.2.0-Java-11.eb
index fe7ec68c3fe7..740e71bf496f 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.0-GCCcore-10.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.0-GCCcore-10.2.0-Java-11.eb
@@ -33,7 +33,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.8.6'),
     ('FriBidi', '1.0.10'),
     ('Gdk-Pixbuf', '2.40.0'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.2-GCCcore-10.3.0.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.2-GCCcore-10.3.0.eb
index 82bbddffe8d9..efaf644fa43d 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.2-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.47.2-GCCcore-10.3.0.eb
@@ -32,7 +32,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.5'),
     ('FriBidi', '1.0.10'),
     ('Gdk-Pixbuf', '2.42.6'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.50.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.50.0-GCCcore-11.2.0.eb
index f2fff0736b30..e96a04c67085 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-2.50.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-2.50.0-GCCcore-11.2.0.eb
@@ -32,7 +32,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.6'),
     ('FriBidi', '1.0.10'),
     ('Gdk-Pixbuf', '2.42.6'),
diff --git a/easybuild/easyconfigs/g/Graphviz/Graphviz-5.0.0-GCCcore-11.3.0.eb b/easybuild/easyconfigs/g/Graphviz/Graphviz-5.0.0-GCCcore-11.3.0.eb
index 574ffbd5cd30..a2f44ff0ff81 100644
--- a/easybuild/easyconfigs/g/Graphviz/Graphviz-5.0.0-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/g/Graphviz/Graphviz-5.0.0-GCCcore-11.3.0.eb
@@ -32,7 +32,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.10.4'),
     ('FriBidi', '1.0.12'),
     ('Gdk-Pixbuf', '2.42.8'),
diff --git a/easybuild/easyconfigs/g/gRPC/gRPC-1.44.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/g/gRPC/gRPC-1.44.0-GCCcore-11.2.0.eb
index 7c7a4e106cfc..a7c26ea7739a 100644
--- a/easybuild/easyconfigs/g/gRPC/gRPC-1.44.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/g/gRPC/gRPC-1.44.0-GCCcore-11.2.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('Abseil', '20210324.2'),
     ('c-ares', '1.18.1'),
     ('protobuf', '3.17.3'),
diff --git a/easybuild/easyconfigs/g/gettext/gettext-0.19.8-GCCcore-5.4.0.eb b/easybuild/easyconfigs/g/gettext/gettext-0.19.8-GCCcore-5.4.0.eb
index 4a9705e7ef74..7bbdba6432e3 100644
--- a/easybuild/easyconfigs/g/gettext/gettext-0.19.8-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/g/gettext/gettext-0.19.8-GCCcore-5.4.0.eb
@@ -24,7 +24,7 @@ dependencies = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 configopts = '--without-emacs --with-libxml2-prefix=$EBROOTLIBXML2'
 
diff --git a/easybuild/easyconfigs/g/gettext/gettext-0.19.8.1-GCCcore-6.3.0.eb b/easybuild/easyconfigs/g/gettext/gettext-0.19.8.1-GCCcore-6.3.0.eb
index 691a5661ac04..7acb30d5912d 100644
--- a/easybuild/easyconfigs/g/gettext/gettext-0.19.8.1-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/g/gettext/gettext-0.19.8.1-GCCcore-6.3.0.eb
@@ -24,7 +24,7 @@ dependencies = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 configopts = '--without-emacs --with-libxml2-prefix=$EBROOTLIBXML2'
 
diff --git a/easybuild/easyconfigs/g/gifsicle/gifsicle-1.92-GCCcore-8.2.0.eb b/easybuild/easyconfigs/g/gifsicle/gifsicle-1.92-GCCcore-8.2.0.eb
index ec28d95cf358..a56f14839cf7 100644
--- a/easybuild/easyconfigs/g/gifsicle/gifsicle-1.92-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/g/gifsicle/gifsicle-1.92-GCCcore-8.2.0.eb
@@ -18,7 +18,7 @@ checksums = ['f8a944f47faa9323bcc72c6e2239e0608bf30693894aee61512aba107a4c6b55']
 
 toolchain = {'name': 'GCCcore', 'version': '8.2.0'}
 
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 configure_cmd = "./bootstrap.sh && ./configure"
 
diff --git a/easybuild/easyconfigs/g/git/git-2.32.0-GCCcore-10.3.0-nodocs.eb b/easybuild/easyconfigs/g/git/git-2.32.0-GCCcore-10.3.0-nodocs.eb
index 5559af9962b7..6a9f8e88f5bb 100644
--- a/easybuild/easyconfigs/g/git/git-2.32.0-GCCcore-10.3.0-nodocs.eb
+++ b/easybuild/easyconfigs/g/git/git-2.32.0-GCCcore-10.3.0-nodocs.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('expat', '2.2.9'),
     ('gettext', '0.21'),
     ('Perl', '5.32.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 preconfigopts = 'make configure && '
diff --git a/easybuild/easyconfigs/g/git/git-2.33.1-GCCcore-11.2.0-nodocs.eb b/easybuild/easyconfigs/g/git/git-2.33.1-GCCcore-11.2.0-nodocs.eb
index ed7c62fbd3b5..08aff1076cb0 100644
--- a/easybuild/easyconfigs/g/git/git-2.33.1-GCCcore-11.2.0-nodocs.eb
+++ b/easybuild/easyconfigs/g/git/git-2.33.1-GCCcore-11.2.0-nodocs.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('expat', '2.4.1'),
     ('gettext', '0.21'),
     ('Perl', '5.34.0'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 preconfigopts = 'make configure && '
diff --git a/easybuild/easyconfigs/g/git/git-2.36.0-GCCcore-11.3.0-nodocs.eb b/easybuild/easyconfigs/g/git/git-2.36.0-GCCcore-11.3.0-nodocs.eb
index b4bb0d64474b..214a4cc7228a 100644
--- a/easybuild/easyconfigs/g/git/git-2.36.0-GCCcore-11.3.0-nodocs.eb
+++ b/easybuild/easyconfigs/g/git/git-2.36.0-GCCcore-11.3.0-nodocs.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('expat', '2.4.8'),
     ('gettext', '0.21'),
     ('Perl', '5.34.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 preconfigopts = 'make configure && '
diff --git a/easybuild/easyconfigs/g/gubbins/gubbins-2.4.0.eb b/easybuild/easyconfigs/g/gubbins/gubbins-2.4.0.eb
index 3bd71c3f03d2..c209965f2eb4 100644
--- a/easybuild/easyconfigs/g/gubbins/gubbins-2.4.0.eb
+++ b/easybuild/easyconfigs/g/gubbins/gubbins-2.4.0.eb
@@ -30,7 +30,7 @@ channels = ['r', 'conda-forge', 'bioconda']
 requirements = '%(namelower)s=%(version)s python=3.6'
 
 dependencies = [
-    ('Miniconda3', '4.7.10', '', True)
+    ('Miniconda3', '4.7.10', '', SYSTEM)
 ]
 
 sanity_check_commands = [('gubbins', '-h')]
diff --git a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-10.2.0-native-Java-1.8.eb b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-10.2.0-native-Java-1.8.eb
index cb15f9404ed1..795f421b2336 100644
--- a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-10.2.0-native-Java-1.8.eb
+++ b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-10.2.0-native-Java-1.8.eb
@@ -29,7 +29,7 @@ checksums = [
 
 builddependencies = [
     ('binutils', '2.35'),
-    ('Maven', '3.6.3', '', True),
+    ('Maven', '3.6.3', '', SYSTEM),
     ('protobuf', '2.5.0'),  # *must* be this version - https://issues.apache.org/jira/browse/HADOOP-13363
     ('CMake', '3.18.4'),
     ('snappy', '1.1.8'),
@@ -39,7 +39,7 @@ builddependencies = [
 
 # https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+Java+Versions
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('libtirpc', '1.3.1'),
 ]
 
diff --git a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-8.3.0-native.eb b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-8.3.0-native.eb
index c1fa9fa3cdc2..039bc9f1132e 100644
--- a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-8.3.0-native.eb
+++ b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.10.0-GCCcore-8.3.0-native.eb
@@ -29,7 +29,7 @@ checksums = [
 
 builddependencies = [
     ('binutils', '2.32'),
-    ('Maven', '3.6.3', '', True),
+    ('Maven', '3.6.3', '', SYSTEM),
     ('protobuf', '2.5.0'),  # *must* be this version - https://issues.apache.org/jira/browse/HADOOP-13363
     ('CMake', '3.15.3'),
     ('snappy', '1.1.7'),
@@ -39,7 +39,7 @@ builddependencies = [
 
 # https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+Java+Versions
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('libtirpc', '1.2.6'),
 ]
 
diff --git a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.9.2-GCCcore-7.3.0-native.eb b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.9.2-GCCcore-7.3.0-native.eb
index 1e22b4574c83..22aad2469d97 100644
--- a/easybuild/easyconfigs/h/Hadoop/Hadoop-2.9.2-GCCcore-7.3.0-native.eb
+++ b/easybuild/easyconfigs/h/Hadoop/Hadoop-2.9.2-GCCcore-7.3.0-native.eb
@@ -24,7 +24,7 @@ checksums = [
 
 builddependencies = [
     ('binutils', '2.30'),
-    ('Maven', '3.6.0', '', True),
+    ('Maven', '3.6.0', '', SYSTEM),
     ('protobuf', '2.5.0'),  # *must* be this version
     ('CMake', '3.12.1'),
     ('snappy', '1.1.7'),
@@ -32,7 +32,7 @@ builddependencies = [
     ('bzip2', '1.0.6'),
 ]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 build_native_libs = True
 
diff --git a/easybuild/easyconfigs/h/Horovod/Horovod-0.22.1-foss-2021a-CUDA-11.3.1-TensorFlow-2.6.0.eb b/easybuild/easyconfigs/h/Horovod/Horovod-0.22.1-foss-2021a-CUDA-11.3.1-TensorFlow-2.6.0.eb
index 4ad47ea0521c..6933ece700ec 100644
--- a/easybuild/easyconfigs/h/Horovod/Horovod-0.22.1-foss-2021a-CUDA-11.3.1-TensorFlow-2.6.0.eb
+++ b/easybuild/easyconfigs/h/Horovod/Horovod-0.22.1-foss-2021a-CUDA-11.3.1-TensorFlow-2.6.0.eb
@@ -16,7 +16,7 @@ builddependencies = [
     ('flatbuffers', '2.0.0'),
 ]
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('UCX-CUDA', '1.10.0', local_cuda_suffix),
     ('NCCL', '2.10.3', local_cuda_suffix),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/h/Horovod/Horovod-0.23.0-foss-2021a-CUDA-11.3.1-PyTorch-1.10.0.eb b/easybuild/easyconfigs/h/Horovod/Horovod-0.23.0-foss-2021a-CUDA-11.3.1-PyTorch-1.10.0.eb
index 1a551228e8f7..ff4cb82b3f6f 100644
--- a/easybuild/easyconfigs/h/Horovod/Horovod-0.23.0-foss-2021a-CUDA-11.3.1-PyTorch-1.10.0.eb
+++ b/easybuild/easyconfigs/h/Horovod/Horovod-0.23.0-foss-2021a-CUDA-11.3.1-PyTorch-1.10.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
 dependencies = [
     ('Python', '3.9.5'),
     ('PyYAML', '5.4.1'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('NCCL', '2.10.3', local_cuda_suffix),
     ('PyTorch', local_pt_version, local_cuda_suffix),
 ]
diff --git a/easybuild/easyconfigs/h/Hydra/Hydra-1.1.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/h/Hydra/Hydra-1.1.1-GCCcore-10.3.0.eb
index 08c0a3b716c6..0bb49bddc8e4 100644
--- a/easybuild/easyconfigs/h/Hydra/Hydra-1.1.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/h/Hydra/Hydra-1.1.1-GCCcore-10.3.0.eb
@@ -16,7 +16,7 @@ toolchain = {'name': 'GCCcore', 'version': '10.3.0'}
 
 builddependencies = [
     ('binutils', '2.36.1'),
-    ('Java', '11', '', True),  # needed by ANTLR runtime
+    ('Java', '11', '', SYSTEM),  # needed by ANTLR runtime
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.1.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.1.0.eb
index 2c4fe36c2137..594056facd2f 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.1.0.eb
@@ -14,7 +14,7 @@ checksums = ['f371cbfd63f879065422b58fa6b81e21870cd791ef6e11d4528608204aa4dcfb']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.2.0.eb
index b2566498fcf9..4aa3a420ef1c 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.10-GCCcore-9.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['f371cbfd63f879065422b58fa6b81e21870cd791ef6e11d4528608204aa4dcfb']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.12-GCCcore-9.3.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.12-GCCcore-9.3.0.eb
index 10eb7812dcda..77bffeabf8ab 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.12-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.12-GCCcore-9.3.0.eb
@@ -14,7 +14,7 @@ checksums = ['7d0ba64cf9d16ec97cc11aafb659b55aa7bdec99072ff2aec5fcecf0fbeab160']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.15-GCCcore-10.1.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.15-GCCcore-10.1.0.eb
index 2d8893f9c12c..113edba6b658 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.15-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.15-GCCcore-10.1.0.eb
@@ -14,7 +14,7 @@ checksums = ['c25a35b30eceb315361484b0ff1f81c924e8ee5c8881576f1ee762f001dbcd1c']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.34', '', True),
+    ('binutils', '2.34', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.16-GCCcore-10.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.16-GCCcore-10.2.0.eb
index 16eb74c38c5a..48daa7126a1a 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.16-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.16-GCCcore-10.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['3ef8580c5b86e32ca092ce8de43df204f5e6f714b0cd32bc6237e6cd0f34a8f4']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.35', '', True),
+    ('binutils', '2.35', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-6.4.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-6.4.0.eb
index c354ad336937..c1f8fcc9061e 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-6.4.0.eb
@@ -18,7 +18,7 @@ checksums = ['d4ecf697d13f14dd1a78c5995f06459bff706fd1ce593d1c02d81667c0207753']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.2.0.eb
index 63e4b751a13c..ab49db02c27b 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['d4ecf697d13f14dd1a78c5995f06459bff706fd1ce593d1c02d81667c0207753']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.29', '', True),
+    ('binutils', '2.29', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.3.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.3.0.eb
index 50e6f6e21993..d125e15db981 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.4-GCCcore-7.3.0.eb
@@ -14,7 +14,7 @@ checksums = ['d4ecf697d13f14dd1a78c5995f06459bff706fd1ce593d1c02d81667c0207753']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.5-GCCcore-5.5.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.5-GCCcore-5.5.0.eb
index 545682077311..c429f8c03fde 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.5-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.5-GCCcore-5.5.0.eb
@@ -14,7 +14,7 @@ checksums = ['7ca60b2519fdbe97f463fe2df66a6188d18b514bfd44127d985f0234ee2461b1']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.6-GCCcore-8.1.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.6-GCCcore-8.1.0.eb
index a6acf99d4a72..8a4a55722033 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.6-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.6-GCCcore-8.1.0.eb
@@ -14,7 +14,7 @@ checksums = ['d91b0295b72a638e4a564f643e4e6d1928779131f628c00f356c13bf336de46f']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.30', '', True),
+    ('binutils', '2.30', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.7-GCCcore-8.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.7-GCCcore-8.2.0.eb
index 3de5a41822f6..81085956428d 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.7-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.7-GCCcore-8.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['585b8e88ed04bdb426403cf7d9b0c0bb9c7630755b0096c2b018a024b29bec0d']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-7.4.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-7.4.0.eb
index d2c9f0677aa2..d71469d2a1a6 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-7.4.0.eb
@@ -14,7 +14,7 @@ checksums = ['528f6a81ad34cbc76aa7dce5a82f8b3d2078ef065271ab81fda033842018a8dc']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.3.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.3.0.eb
index 21de8022b132..2c4f4f0dbdb8 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.3.0.eb
@@ -14,7 +14,7 @@ checksums = ['528f6a81ad34cbc76aa7dce5a82f8b3d2078ef065271ab81fda033842018a8dc']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.4.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.4.0.eb
index 08d063f03002..6d131fe33313 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.47.8-GCCcore-8.4.0.eb
@@ -14,7 +14,7 @@ checksums = ['528f6a81ad34cbc76aa7dce5a82f8b3d2078ef065271ab81fda033842018a8dc']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.32', '', True),
+    ('binutils', '2.32', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-10.3.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-10.3.0.eb
index 8697c849e414..2253777a6806 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-10.3.0.eb
@@ -14,7 +14,7 @@ checksums = ['8361ff3c643fbd391064e97e5f54592ca28b880eaffbf566a68e0ad800d1a8ac']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.1.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.1.0.eb
index c5323938915c..7b7405ce180e 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.1.0.eb
@@ -14,7 +14,7 @@ checksums = ['8361ff3c643fbd391064e97e5f54592ca28b880eaffbf566a68e0ad800d1a8ac']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.2.0.eb
index dd03b0d33f5a..ea6ea4b507bf 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-11.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['8361ff3c643fbd391064e97e5f54592ca28b880eaffbf566a68e0ad800d1a8ac']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.37', '', True),
+    ('binutils', '2.37', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-9.4.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-9.4.0.eb
index a3563b02d502..2e1ff3703b14 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.48.3-GCCcore-9.4.0.eb
@@ -14,7 +14,7 @@ checksums = ['8361ff3c643fbd391064e97e5f54592ca28b880eaffbf566a68e0ad800d1a8ac']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb
index 26957da215e2..d434ddefe0d8 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb
@@ -14,7 +14,7 @@ checksums = ['9e2e0e213a7e0a36244eed6204d902b6504602a578b6ecd15268b1454deadd36']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.1.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.1.0.eb
index b76db7f347cb..6c618e880ac6 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.1.0.eb
@@ -14,7 +14,7 @@ checksums = ['9e2e0e213a7e0a36244eed6204d902b6504602a578b6ecd15268b1454deadd36']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.2.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.2.0.eb
index 712e28926d5a..3fa0f4815634 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-12.2.0.eb
@@ -14,7 +14,7 @@ checksums = ['9e2e0e213a7e0a36244eed6204d902b6504602a578b6ecd15268b1454deadd36']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.39', '', True),
+    ('binutils', '2.39', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-9.5.0.eb b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-9.5.0.eb
index 19d7895e8f1f..dbe1f9315962 100644
--- a/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/h/help2man/help2man-1.49.2-GCCcore-9.5.0.eb
@@ -14,7 +14,7 @@ checksums = ['9e2e0e213a7e0a36244eed6204d902b6504602a578b6ecd15268b1454deadd36']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.38', '', True),
+    ('binutils', '2.38', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/hipify-clang/hipify-clang-4.2.0-gcccuda-2020b.eb b/easybuild/easyconfigs/h/hipify-clang/hipify-clang-4.2.0-gcccuda-2020b.eb
index d06d9b20df62..ee5c6c8ec698 100644
--- a/easybuild/easyconfigs/h/hipify-clang/hipify-clang-4.2.0-gcccuda-2020b.eb
+++ b/easybuild/easyconfigs/h/hipify-clang/hipify-clang-4.2.0-gcccuda-2020b.eb
@@ -22,7 +22,7 @@ builddependencies = [
 
 dependencies = [
     ('Clang', '11.0.1'),
-    # ('cuDNN', '8.0.4.30', '-CUDA-11.1.1', True),
+    # ('cuDNN', '8.0.4.30', '-CUDA-11.1.1', SYSTEM),
     # ('Python', '3.8.6'),
 ]
 
diff --git a/easybuild/easyconfigs/h/hiredis/hiredis-1.0.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/h/hiredis/hiredis-1.0.2-GCCcore-11.2.0.eb
index be49af696cf9..284638352717 100644
--- a/easybuild/easyconfigs/h/hiredis/hiredis-1.0.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/h/hiredis/hiredis-1.0.2-GCCcore-11.2.0.eb
@@ -28,7 +28,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.4-intel-2019b-Python-3.7.4-Java-1.8.eb b/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.4-intel-2019b-Python-3.7.4-Java-1.8.eb
index 94664ec45e66..4e2be23df1d7 100644
--- a/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.4-intel-2019b-Python-3.7.4-Java-1.8.eb
+++ b/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.4-intel-2019b-Python-3.7.4-Java-1.8.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('SciPy-bundle', '2019.10', local_python_versionsuffix),  # for numpy, scipy
     ('networkx', '2.4', local_python_versionsuffix),
     ('scikit-learn', '0.21.3', local_python_versionsuffix),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Spark', '2.4.5', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.5-fosscuda-2020b.eb b/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.5-fosscuda-2020b.eb
index 4f7660f29382..8a744cd8d263 100644
--- a/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.5-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/h/hyperopt/hyperopt-0.2.5-fosscuda-2020b.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('networkx', '2.5'),
     ('scikit-learn', '0.23.2'),
     ('tqdm', '4.56.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Spark', '3.1.1'),
 ]
 
diff --git a/easybuild/easyconfigs/i/IGV/IGV-2.12.3-Java-11.eb b/easybuild/easyconfigs/i/IGV/IGV-2.12.3-Java-11.eb
index 0005d342b592..7e992b8bba50 100644
--- a/easybuild/easyconfigs/i/IGV/IGV-2.12.3-Java-11.eb
+++ b/easybuild/easyconfigs/i/IGV/IGV-2.12.3-Java-11.eb
@@ -22,7 +22,7 @@ source_urls = ['http://data.broadinstitute.org/igv/projects/downloads/%(version_
 sources = ['%(name)s_%(version)s.zip']
 checksums = ['c87a109deb35994e1b28dee80b5acfd623ec3257f031fcd9cfce008cd32a4cf2']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['%(namelower)s.sh', 'lib/%(namelower)s.jar'],
diff --git a/easybuild/easyconfigs/i/IGV/IGV-2.5.0-Java-11.eb b/easybuild/easyconfigs/i/IGV/IGV-2.5.0-Java-11.eb
index 175e1547ee9c..1716dc4a1336 100644
--- a/easybuild/easyconfigs/i/IGV/IGV-2.5.0-Java-11.eb
+++ b/easybuild/easyconfigs/i/IGV/IGV-2.5.0-Java-11.eb
@@ -22,7 +22,7 @@ source_urls = ['http://data.broadinstitute.org/igv/projects/downloads/%(version_
 sources = ['%(name)s_%(version)s.zip']
 checksums = ['44efdd0500dd6ace8e1c70dad0d758d9ab90492b391d2af4a416f03808fee471']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['%(namelower)s.sh', 'lib/%(namelower)s.jar'],
diff --git a/easybuild/easyconfigs/i/IGV/IGV-2.8.0-Java-11.eb b/easybuild/easyconfigs/i/IGV/IGV-2.8.0-Java-11.eb
index 870e1a93e0df..9369fb4f3adb 100644
--- a/easybuild/easyconfigs/i/IGV/IGV-2.8.0-Java-11.eb
+++ b/easybuild/easyconfigs/i/IGV/IGV-2.8.0-Java-11.eb
@@ -22,7 +22,7 @@ source_urls = ['http://data.broadinstitute.org/igv/projects/downloads/%(version_
 sources = ['%(name)s_%(version)s.zip']
 checksums = ['33f3ac57017907b931f90c35b63b2de2e4f8d2452f0fbb5be39d30288fc9b2c6']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['%(namelower)s.sh', 'lib/%(namelower)s.jar'],
diff --git a/easybuild/easyconfigs/i/IGV/IGV-2.9.4-Java-11.eb b/easybuild/easyconfigs/i/IGV/IGV-2.9.4-Java-11.eb
index 3e9176b8a218..f257993866e9 100644
--- a/easybuild/easyconfigs/i/IGV/IGV-2.9.4-Java-11.eb
+++ b/easybuild/easyconfigs/i/IGV/IGV-2.9.4-Java-11.eb
@@ -22,7 +22,7 @@ source_urls = ['http://data.broadinstitute.org/igv/projects/downloads/%(version_
 sources = ['%(name)s_%(version)s.zip']
 checksums = ['05717ec6d0386a5eafe93c8b1af371c0013355eae74312b78eae5fdd99fc5fc1']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['%(namelower)s.sh', 'lib/%(namelower)s.jar'],
diff --git a/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-foss-2020b.eb b/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-foss-2020b.eb
index fa2d35b964b8..d3a1580f52b6 100644
--- a/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-foss-2020b.eb
+++ b/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-foss-2020b.eb
@@ -34,7 +34,7 @@ checksums = [
 dependencies = [
     ('LibTIFF', '4.1.0'),
     ('Qt5', '5.14.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('HDF5', '1.10.7'),
     ('Python', '3.8.6'),
 ]
diff --git a/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-fosscuda-2020b.eb b/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-fosscuda-2020b.eb
index d2bc021cbb9d..1f1c6e82c8a3 100644
--- a/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/i/IMOD/IMOD-4.11.5-fosscuda-2020b.eb
@@ -37,7 +37,7 @@ checksums = [
 dependencies = [
     ('LibTIFF', '4.1.0'),
     ('Qt5', '5.14.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('HDF5', '1.10.7'),
     ('Python', '3.8.6'),
 ]
diff --git a/easybuild/easyconfigs/i/INTEGRATE-Neo/INTEGRATE-Neo-1.2.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/i/INTEGRATE-Neo/INTEGRATE-Neo-1.2.1-foss-2018b-Python-3.6.6.eb
index abf9e6ec0744..787112155070 100644
--- a/easybuild/easyconfigs/i/INTEGRATE-Neo/INTEGRATE-Neo-1.2.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/i/INTEGRATE-Neo/INTEGRATE-Neo-1.2.1-foss-2018b-Python-3.6.6.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('Python', '3.6.6'),
     ('BWA', '0.7.17'),
     ('HLAminer', '1.4', '-Perl-5.28.0'),
-    ('netMHC', '4.0a', '', True),
+    ('netMHC', '4.0a', '', SYSTEM),
 ]
 
 start_dir = '%(name)s-V-%(version)s'
diff --git a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-foss-2018b.eb b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-foss-2018b.eb
index aec8a7ac610d..ad5e295f9089 100644
--- a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-foss-2018b.eb
+++ b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-foss-2018b.eb
@@ -17,7 +17,7 @@ checksums = ['9614092de7a157de82c9cc402b19cc8bfa0cb0ffc93b91817875c2b4bb46a284']
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 dependencies = [('zlib', '1.2.11')]
 
diff --git a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-intel-2019b.eb b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-intel-2019b.eb
index a27292fd82ec..cb0a9baa6c53 100644
--- a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-intel-2019b.eb
+++ b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.12-intel-2019b.eb
@@ -16,7 +16,7 @@ checksums = ['9614092de7a157de82c9cc402b19cc8bfa0cb0ffc93b91817875c2b4bb46a284']
 
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 dependencies = [('zlib', '1.2.11')]
 
diff --git a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.6-intel-2018a.eb b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.6-intel-2018a.eb
index 66ddae35864f..a3b9c543ee04 100644
--- a/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.6-intel-2018a.eb
+++ b/easybuild/easyconfigs/i/IQ-TREE/IQ-TREE-1.6.6-intel-2018a.eb
@@ -16,7 +16,7 @@ checksums = ['31bc44e3a79edb889f3e2ed396d1492b8e38d93437b2ae64deb452867929dc56']
 
 builddependencies = [
     ('CMake', '3.10.2'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 dependencies = [('zlib', '1.2.11')]
 
diff --git a/easybuild/easyconfigs/i/ITK/ITK-4.13.1-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/i/ITK/ITK-4.13.1-foss-2019b-Python-3.7.4.eb
index 8108fd7121ce..4d7e044fc453 100644
--- a/easybuild/easyconfigs/i/ITK/ITK-4.13.1-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/i/ITK/ITK-4.13.1-foss-2019b-Python-3.7.4.eb
@@ -24,7 +24,7 @@ checksums = ['b352060d8b7289916a3cb033dfdbcf423423ba474643b79706966e679268e3d7']
 builddependencies = [
     ('CMake', '3.15.3'),
     ('Bison', '3.3.2'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019a-Python-3.7.2.eb
index 62e178a70de3..a435dbd1e329 100644
--- a/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019a-Python-3.7.2.eb
@@ -30,7 +30,7 @@ checksums = ['c6b3c33ecc73104c906e0e1a1bfaa41a09af24bf53a4ec5e5c265d7e82bdf69f']
 builddependencies = [
     ('CMake', '3.13.3'),
     ('Bison', '3.0.5'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019b-Python-3.7.4.eb
index 091109392a20..63a9196709be 100644
--- a/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/i/ITK/ITK-5.0.1-foss-2019b-Python-3.7.4.eb
@@ -30,7 +30,7 @@ checksums = ['c6b3c33ecc73104c906e0e1a1bfaa41a09af24bf53a4ec5e5c265d7e82bdf69f']
 builddependencies = [
     ('CMake', '3.15.3'),
     ('Bison', '3.3.2'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/i/ImageJ/ImageJ-1.51a.eb b/easybuild/easyconfigs/i/ImageJ/ImageJ-1.51a.eb
index 7d9f547d493a..ac587d508407 100644
--- a/easybuild/easyconfigs/i/ImageJ/ImageJ-1.51a.eb
+++ b/easybuild/easyconfigs/i/ImageJ/ImageJ-1.51a.eb
@@ -16,7 +16,7 @@ sources = ['ij%(version_major)s%(version_minor)s-src.zip']
 checksums = ['1fe77bedd792f095bc51d7b12083319b04124bb82f2dc5eb0552089880cf1a4f']
 
 # specify dependency on Java/1.8 "wrapper", rather than a specific Java version
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 builddependencies = [('ant', '1.10.1', '-Java-%(javaver)s')]
 
diff --git a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.26-65.0-intel-2017b.eb b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.26-65.0-intel-2017b.eb
index 76b2b69e1390..03a9b9f01193 100644
--- a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.26-65.0-intel-2017b.eb
+++ b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.26-65.0-intel-2017b.eb
@@ -26,7 +26,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_152', '', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
     ('Perl', '5.26.0'),
     ('libgd', '2.2.5'),
     ('Python', '2.7.14'),
diff --git a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.27-66.0-intel-2017b.eb b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.27-66.0-intel-2017b.eb
index 1542ef84a85d..bb69e1b65bba 100644
--- a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.27-66.0-intel-2017b.eb
+++ b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.27-66.0-intel-2017b.eb
@@ -26,7 +26,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_152', '', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
     ('Perl', '5.26.0'),
     ('libgd', '2.2.5'),
     ('Python', '2.7.14'),
diff --git a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.28-67.0-intel-2018a.eb b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.28-67.0-intel-2018a.eb
index c82158bd56cb..129c5160aa22 100644
--- a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.28-67.0-intel-2018a.eb
+++ b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.28-67.0-intel-2018a.eb
@@ -26,7 +26,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('Perl', '5.26.1'),
     ('libgd', '2.2.5'),
     ('Python', '2.7.14'),
diff --git a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.52-86.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.52-86.0-GCCcore-10.3.0.eb
index b3d5765b73d4..fdfeaac821fd 100644
--- a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.52-86.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.52-86.0-GCCcore-10.3.0.eb
@@ -18,7 +18,7 @@ sources = ['%(namelower)s-%(version)s-64-bit.tar.gz']
 checksums = ['50a03c47fb16c669c265e99ba05c4a8558b82047f713c9945f362d3d4be6069a']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Perl', '5.32.1'),
     ('libgd', '2.3.1'),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.55-88.0-foss-2021a.eb b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.55-88.0-foss-2021a.eb
index 3107c097d4af..d45355114798 100644
--- a/easybuild/easyconfigs/i/InterProScan/InterProScan-5.55-88.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/i/InterProScan/InterProScan-5.55-88.0-foss-2021a.eb
@@ -23,7 +23,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('Java',    '11', '', True),
+    ('Java',    '11', '', SYSTEM),
     ('Perl',    '5.32.1'),
     ('libgd',   '2.3.1'),
     ('Python',  '3.9.5'),
diff --git a/easybuild/easyconfigs/i/Iris/Iris-1.0.5-GCC-11.2.0-Java-15.eb b/easybuild/easyconfigs/i/Iris/Iris-1.0.5-GCC-11.2.0-Java-15.eb
index 95b0d643515b..90f8eac533d8 100644
--- a/easybuild/easyconfigs/i/Iris/Iris-1.0.5-GCC-11.2.0-Java-15.eb
+++ b/easybuild/easyconfigs/i/Iris/Iris-1.0.5-GCC-11.2.0-Java-15.eb
@@ -15,7 +15,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['a71718d418fb8b1afacbe2b3a6b91fd50cadc9e12c0b532739b955e455913b0b']
 
 dependencies = [
-    ('Java', '15', '', True),
+    ('Java', '15', '', SYSTEM),
     ('minimap2', '2.22'),
     ('HTSlib', '1.14'),
     ('SAMtools', '1.14'),
diff --git a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-gompi-2021b.eb b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-gompi-2021b.eb
index 8a42ae8abf57..03a7f2798dbf 100644
--- a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-gompi-2021b.eb
+++ b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-gompi-2021b.eb
@@ -6,6 +6,6 @@ description = "FFTW interfaces using Intel oneAPI Math Kernel Library"
 
 toolchain = {'name': 'gompi', 'version': '2021b'}
 
-dependencies = [('imkl', version, '', True)]
+dependencies = [('imkl', version, '', SYSTEM)]
 
 moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-iimpi-2021b.eb b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-iimpi-2021b.eb
index e1f4249fb2b6..e411b2b39237 100644
--- a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-iimpi-2021b.eb
+++ b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2021.4.0-iimpi-2021b.eb
@@ -6,6 +6,6 @@ description = "FFTW interfaces using Intel oneAPI Math Kernel Library"
 
 toolchain = {'name': 'iimpi', 'version': '2021b'}
 
-dependencies = [('imkl', version, '', True)]
+dependencies = [('imkl', version, '', SYSTEM)]
 
 moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.0.1-iimpi-2022.00.eb b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.0.1-iimpi-2022.00.eb
index 2eaf74320656..07d65f3a80fe 100644
--- a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.0.1-iimpi-2022.00.eb
+++ b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.0.1-iimpi-2022.00.eb
@@ -6,6 +6,6 @@ description = "FFTW interfaces using Intel oneAPI Math Kernel Library"
 
 toolchain = {'name': 'iimpi', 'version': '2022.00'}
 
-dependencies = [('imkl', version, '', True)]
+dependencies = [('imkl', version, '', SYSTEM)]
 
 moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022.05.eb b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022.05.eb
index 1d2d73b038e6..203a8e9f0ef8 100644
--- a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022.05.eb
+++ b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022.05.eb
@@ -6,6 +6,6 @@ description = "FFTW interfaces using Intel oneAPI Math Kernel Library"
 
 toolchain = {'name': 'iimpi', 'version': '2022.05'}
 
-dependencies = [('imkl', version, '', True)]
+dependencies = [('imkl', version, '', SYSTEM)]
 
 moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022a.eb b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022a.eb
index d81a631f10f4..a18ad2d9d36c 100644
--- a/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022a.eb
+++ b/easybuild/easyconfigs/i/imkl-FFTW/imkl-FFTW-2022.1.0-iimpi-2022a.eb
@@ -6,6 +6,6 @@ description = "FFTW interfaces using Intel oneAPI Math Kernel Library"
 
 toolchain = {'name': 'iimpi', 'version': '2022a'}
 
-dependencies = [('imkl', version, '', True)]
+dependencies = [('imkl', version, '', SYSTEM)]
 
 moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/i/intel/intel-2021b.eb b/easybuild/easyconfigs/i/intel/intel-2021b.eb
index 68916794a301..8d5b83ca141d 100644
--- a/easybuild/easyconfigs/i/intel/intel-2021b.eb
+++ b/easybuild/easyconfigs/i/intel/intel-2021b.eb
@@ -15,7 +15,7 @@ dependencies = [
     ('binutils', '2.37', '', ('GCCcore', local_gccver)),
     ('intel-compilers', local_comp_ver),
     ('impi', local_comp_ver, '', ('intel-compilers', local_comp_ver)),
-    ('imkl', local_comp_ver, '', True),
+    ('imkl', local_comp_ver, '', SYSTEM),
     ('imkl-FFTW', local_comp_ver, '', ('iimpi', version)),
 ]
 
diff --git a/easybuild/easyconfigs/i/intel/intel-2022.00.eb b/easybuild/easyconfigs/i/intel/intel-2022.00.eb
index 756e76c67c6f..d4c1c7430739 100644
--- a/easybuild/easyconfigs/i/intel/intel-2022.00.eb
+++ b/easybuild/easyconfigs/i/intel/intel-2022.00.eb
@@ -15,7 +15,7 @@ dependencies = [
     ('binutils', '2.37', '', ('GCCcore', local_gccver)),
     ('intel-compilers', local_comp_ver),
     ('impi', '2021.5.0', '', ('intel-compilers', local_comp_ver)),
-    ('imkl', local_comp_ver, '', True),
+    ('imkl', local_comp_ver, '', SYSTEM),
     ('imkl-FFTW', local_comp_ver, '', ('iimpi', version)),
 ]
 
diff --git a/easybuild/easyconfigs/i/intel/intel-2022.05.eb b/easybuild/easyconfigs/i/intel/intel-2022.05.eb
index b78b8a46bb5f..1dd52139097e 100644
--- a/easybuild/easyconfigs/i/intel/intel-2022.05.eb
+++ b/easybuild/easyconfigs/i/intel/intel-2022.05.eb
@@ -15,7 +15,7 @@ dependencies = [
     ('binutils', '2.38', '', ('GCCcore', local_gccver)),
     ('intel-compilers', local_comp_ver),
     ('impi', '2021.6.0', '', ('intel-compilers', local_comp_ver)),
-    ('imkl', local_comp_ver, '', True),
+    ('imkl', local_comp_ver, '', SYSTEM),
     ('imkl-FFTW', local_comp_ver, '', ('iimpi', version)),
 ]
 
diff --git a/easybuild/easyconfigs/i/intel/intel-2022a.eb b/easybuild/easyconfigs/i/intel/intel-2022a.eb
index b9eb05d65412..59f22dc713b7 100644
--- a/easybuild/easyconfigs/i/intel/intel-2022a.eb
+++ b/easybuild/easyconfigs/i/intel/intel-2022a.eb
@@ -15,7 +15,7 @@ dependencies = [
     ('binutils', '2.38', '', ('GCCcore', local_gccver)),
     ('intel-compilers', local_comp_ver),
     ('impi', '2021.6.0', '', ('intel-compilers', local_comp_ver)),
-    ('imkl', local_comp_ver, '', True),
+    ('imkl', local_comp_ver, '', SYSTEM),
     ('imkl-FFTW', local_comp_ver, '', ('iimpi', version)),
 ]
 
diff --git a/easybuild/easyconfigs/j/JUnit/JUnit-4.12-Java-1.8.eb b/easybuild/easyconfigs/j/JUnit/JUnit-4.12-Java-1.8.eb
index d773a1008c5d..9c828ff708b8 100644
--- a/easybuild/easyconfigs/j/JUnit/JUnit-4.12-Java-1.8.eb
+++ b/easybuild/easyconfigs/j/JUnit/JUnit-4.12-Java-1.8.eb
@@ -17,7 +17,7 @@ sources = ['%(namelower)s-%(version)s.jar']
 checksums = ['59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a']
 
 # specify dependency on Java/1.8 "wrapper", rather than a specific Java version
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': sources,
diff --git a/easybuild/easyconfigs/j/Jasmine/Jasmine-1.1.4-GCC-11.2.0-Java-15.eb b/easybuild/easyconfigs/j/Jasmine/Jasmine-1.1.4-GCC-11.2.0-Java-15.eb
index 811d9481443f..781822576b58 100644
--- a/easybuild/easyconfigs/j/Jasmine/Jasmine-1.1.4-GCC-11.2.0-Java-15.eb
+++ b/easybuild/easyconfigs/j/Jasmine/Jasmine-1.1.4-GCC-11.2.0-Java-15.eb
@@ -15,7 +15,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['b52e13964b41f7659368965cd9e0537b151a6b52cf41dc8634ba67b1384113ec']
 
 dependencies = [
-    ('Java', '15', '', True),
+    ('Java', '15', '', SYSTEM),
     ('Iris', '1.0.5', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/j/JupyterHub/JupyterHub-1.4.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/j/JupyterHub/JupyterHub-1.4.1-GCCcore-10.3.0.eb
index 3457f1b80865..97b36ac60d2a 100644
--- a/easybuild/easyconfigs/j/JupyterHub/JupyterHub-1.4.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/j/JupyterHub/JupyterHub-1.4.1-GCCcore-10.3.0.eb
@@ -18,7 +18,7 @@ dependencies = [
     ('IPython', '7.25.0'),
     ('Mako', '1.1.4'),
     ('configurable-http-proxy', '4.4.0'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/j/jax/jax-0.2.19-fosscuda-2020b.eb b/easybuild/easyconfigs/j/jax/jax-0.2.19-fosscuda-2020b.eb
index f138187813db..039ed9bd0d2e 100644
--- a/easybuild/easyconfigs/j/jax/jax-0.2.19-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/j/jax/jax-0.2.19-fosscuda-2020b.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('Python', '3.8.6'),
     ('SciPy-bundle', '2020.11'),
     ('flatbuffers-python', '1.12'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
 
diff --git a/easybuild/easyconfigs/j/jax/jax-0.2.24-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/j/jax/jax-0.2.24-foss-2021a-CUDA-11.3.1.eb
index 770de325d377..d9c4a4c51a4c 100644
--- a/easybuild/easyconfigs/j/jax/jax-0.2.24-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/j/jax/jax-0.2.24-foss-2021a-CUDA-11.3.1.eb
@@ -21,7 +21,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('cuDNN', '8.2.1.32', versionsuffix, True),
     ('NCCL', '2.10.3', versionsuffix),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/j/jax/jax-0.3.14-foss-2022a-CUDA-11.7.0.eb b/easybuild/easyconfigs/j/jax/jax-0.3.14-foss-2022a-CUDA-11.7.0.eb
index a49927252076..387bbe5cc6c6 100644
--- a/easybuild/easyconfigs/j/jax/jax-0.3.14-foss-2022a-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/j/jax/jax-0.3.14-foss-2022a-CUDA-11.7.0.eb
@@ -21,7 +21,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('cuDNN', '8.4.1.50', versionsuffix, True),
     ('NCCL', '2.12.12', versionsuffix),
     ('Python', '3.10.4'),
diff --git a/easybuild/easyconfigs/j/jax/jax-0.3.9-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/j/jax/jax-0.3.9-foss-2021a-CUDA-11.3.1.eb
index 20d0ce315f75..92459f0310ca 100644
--- a/easybuild/easyconfigs/j/jax/jax-0.3.9-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/j/jax/jax-0.3.9-foss-2021a-CUDA-11.3.1.eb
@@ -21,7 +21,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('cuDNN', '8.2.1.32', versionsuffix, True),
     ('NCCL', '2.10.3', versionsuffix),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/j/jupyter-server-proxy/jupyter-server-proxy-3.2.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/j/jupyter-server-proxy/jupyter-server-proxy-3.2.1-GCCcore-10.3.0.eb
index 6fbb4b351ab0..46515f5f9c2f 100644
--- a/easybuild/easyconfigs/j/jupyter-server-proxy/jupyter-server-proxy-3.2.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/j/jupyter-server-proxy/jupyter-server-proxy-3.2.1-GCCcore-10.3.0.eb
@@ -21,7 +21,7 @@ builddependencies = [
 dependencies = [
     ('Python', '3.9.5'),
     ('JupyterHub', '1.4.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('aiohttp', '3.8.1'),
 ]
 
diff --git a/easybuild/easyconfigs/k/Kent_tools/Kent_tools-418-GCC-10.3.0.eb b/easybuild/easyconfigs/k/Kent_tools/Kent_tools-418-GCC-10.3.0.eb
index e5ec4e0190e7..23a32baffb95 100644
--- a/easybuild/easyconfigs/k/Kent_tools/Kent_tools-418-GCC-10.3.0.eb
+++ b/easybuild/easyconfigs/k/Kent_tools/Kent_tools-418-GCC-10.3.0.eb
@@ -21,7 +21,7 @@ dependencies = [
     ('libpng', '1.6.37'),
     ('zlib', '1.2.11'),
     ('util-linux', '2.36'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 buildopts = 'CC="$CC" COPT="$CFLAGS -fcommon" PNGLIB="-L$EBROOTLIBPNG/lib -lpng" ZLIB="-L$EBROOTZLIB/lib -lz" '
diff --git a/easybuild/easyconfigs/k/Kent_tools/Kent_tools-422-GCC-11.2.0.eb b/easybuild/easyconfigs/k/Kent_tools/Kent_tools-422-GCC-11.2.0.eb
index 6e386edc2920..866d7dadb81c 100644
--- a/easybuild/easyconfigs/k/Kent_tools/Kent_tools-422-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/k/Kent_tools/Kent_tools-422-GCC-11.2.0.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('libpng', '1.6.37'),
     ('zlib', '1.2.11'),
     ('util-linux', '2.37'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('freetype', '2.11.0'),
 ]
 
diff --git a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-foss-2019b-Python-3.7.4-kokkos.eb b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-foss-2019b-Python-3.7.4-kokkos.eb
index 5649a33478fd..bb60e5f730f9 100644
--- a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-foss-2019b-Python-3.7.4-kokkos.eb
+++ b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-foss-2019b-Python-3.7.4-kokkos.eb
@@ -56,7 +56,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('Voro++', '0.4.6'),
     ('kim-api', '2.1.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('yaff', '1.6.0', local_python_versionsuffix),
     ('PLUMED', '2.5.3', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-intel-2019b-Python-3.7.4-kokkos.eb b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-intel-2019b-Python-3.7.4-kokkos.eb
index 722f37b89e8a..a96f4e1bf046 100644
--- a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-intel-2019b-Python-3.7.4-kokkos.eb
+++ b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-3Mar2020-intel-2019b-Python-3.7.4-kokkos.eb
@@ -60,7 +60,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('Voro++', '0.4.6'),
     ('kim-api', '2.1.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('yaff', '1.6.0', local_python_versionsuffix),
     ('PLUMED', '2.5.3', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-foss-2019b-Python-3.7.4-kokkos.eb b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-foss-2019b-Python-3.7.4-kokkos.eb
index b380301035a3..3b651f5bb185 100644
--- a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-foss-2019b-Python-3.7.4-kokkos.eb
+++ b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-foss-2019b-Python-3.7.4-kokkos.eb
@@ -56,7 +56,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('Voro++', '0.4.6'),
     ('kim-api', '2.1.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('yaff', '1.6.0', local_python_versionsuffix),
     ('PLUMED', '2.5.3', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos-OCTP.eb b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos-OCTP.eb
index f8494e9734bc..f6d6351c64b0 100644
--- a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos-OCTP.eb
+++ b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos-OCTP.eb
@@ -63,7 +63,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('Voro++', '0.4.6'),
     ('kim-api', '2.1.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('yaff', '1.6.0', local_python_versionsuffix),
     ('PLUMED', '2.5.3', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos.eb b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos.eb
index 35c2a48a2086..23b825e617b3 100644
--- a/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos.eb
+++ b/easybuild/easyconfigs/l/LAMMPS/LAMMPS-7Aug2019-intel-2019b-Python-3.7.4-kokkos.eb
@@ -56,7 +56,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('Voro++', '0.4.6'),
     ('kim-api', '2.1.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('yaff', '1.6.0', local_python_versionsuffix),
     ('PLUMED', '2.5.3', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/l/LDC/LDC-1.25.1-GCCcore-10.2.0.eb b/easybuild/easyconfigs/l/LDC/LDC-1.25.1-GCCcore-10.2.0.eb
index f509313572df..a022ed94c457 100644
--- a/easybuild/easyconfigs/l/LDC/LDC-1.25.1-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/l/LDC/LDC-1.25.1-GCCcore-10.2.0.eb
@@ -17,7 +17,7 @@ builddependencies = [
     ('CMake', '3.18.4'),
     ('Ninja', '1.10.1'),
     # building LDC from source required LDC 0.17.x
-    ('LDC', '0.17.6', '-%(arch)s', True),
+    ('LDC', '0.17.6', '-%(arch)s', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/l/LDC/LDC-1.26.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/l/LDC/LDC-1.26.0-GCCcore-10.3.0.eb
index 01d386798922..55231353b259 100644
--- a/easybuild/easyconfigs/l/LDC/LDC-1.26.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/l/LDC/LDC-1.26.0-GCCcore-10.3.0.eb
@@ -17,7 +17,7 @@ builddependencies = [
     ('CMake', '3.20.1'),
     ('Ninja', '1.10.2'),
     # building LDC from source required LDC 0.17.x
-    ('LDC', '0.17.6', '-%(arch)s', True),
+    ('LDC', '0.17.6', '-%(arch)s', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/l/LOHHLA/LOHHLA-2018.11.05-foss-2018b-R-3.5.1.eb b/easybuild/easyconfigs/l/LOHHLA/LOHHLA-2018.11.05-foss-2018b-R-3.5.1.eb
index e8d3bf16a0c3..ea74d83de75d 100644
--- a/easybuild/easyconfigs/l/LOHHLA/LOHHLA-2018.11.05-foss-2018b-R-3.5.1.eb
+++ b/easybuild/easyconfigs/l/LOHHLA/LOHHLA-2018.11.05-foss-2018b-R-3.5.1.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('BEDTools', '2.27.1'),
     ('SAMtools', '1.9'),
     ('novoalign', '3.09.01', versionsuffix),
-    ('picard', '2.18.27', '-Java-1.8', True),
+    ('picard', '2.18.27', '-Java-1.8', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/LiBis/LiBis-20200428-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/l/LiBis/LiBis-20200428-foss-2019b-Python-3.7.4.eb
index 1788ec1f1d83..4eadb4441ed6 100644
--- a/easybuild/easyconfigs/l/LiBis/LiBis-20200428-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/l/LiBis/LiBis-20200428-foss-2019b-Python-3.7.4.eb
@@ -24,7 +24,7 @@ checksums = [
 
 dependencies = [
     ('Python', '3.7.4'),
-    ('FastQC', '0.11.9', '-Java-11', True),
+    ('FastQC', '0.11.9', '-Java-11', SYSTEM),
     ('SciPy-bundle', '2019.10', versionsuffix),  # pandas
     ('matplotlib', '3.1.1', versionsuffix),
     ('cutadapt', '2.7', versionsuffix),
diff --git a/easybuild/easyconfigs/l/Libint/Libint-2.4.2-intel-2018a.eb b/easybuild/easyconfigs/l/Libint/Libint-2.4.2-intel-2018a.eb
index f36862909d78..a9f94d660907 100644
--- a/easybuild/easyconfigs/l/Libint/Libint-2.4.2-intel-2018a.eb
+++ b/easybuild/easyconfigs/l/Libint/Libint-2.4.2-intel-2018a.eb
@@ -16,7 +16,7 @@ builddependencies = [
     ('Autotools', '20170619'),
     ('GMP', '6.1.2'),
     ('Boost', '1.66.0', '-Python-2.7.14'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('Python', '2.7.14'),
 ]
 
diff --git a/easybuild/easyconfigs/l/Libint/Libint-2.5.0-gompi-2019a.eb b/easybuild/easyconfigs/l/Libint/Libint-2.5.0-gompi-2019a.eb
index 7bdd390fc277..ea2d5040ce7e 100644
--- a/easybuild/easyconfigs/l/Libint/Libint-2.5.0-gompi-2019a.eb
+++ b/easybuild/easyconfigs/l/Libint/Libint-2.5.0-gompi-2019a.eb
@@ -16,7 +16,7 @@ builddependencies = [
     ('Autotools', '20180311'),
     ('GMP', '6.1.2'),
     ('Boost', '1.70.0'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('Python', '2.7.15'),
 ]
 
diff --git a/easybuild/easyconfigs/l/Libint/Libint-2.5.0-iimpi-2019a.eb b/easybuild/easyconfigs/l/Libint/Libint-2.5.0-iimpi-2019a.eb
index 3983e2d60576..87d30d047ad3 100644
--- a/easybuild/easyconfigs/l/Libint/Libint-2.5.0-iimpi-2019a.eb
+++ b/easybuild/easyconfigs/l/Libint/Libint-2.5.0-iimpi-2019a.eb
@@ -16,7 +16,7 @@ builddependencies = [
     ('Autotools', '20180311'),
     ('GMP', '6.1.2'),
     ('Boost', '1.70.0'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('Python', '2.7.15'),
 ]
 
diff --git a/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-10.3.0.eb
index 9f8743b3091d..df8e63cdd748 100644
--- a/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.11'),
     ('XZ', '5.2.5'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-11.2.0.eb b/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-11.2.0.eb
index a5bba4c08fc4..c0609d8718e2 100644
--- a/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/l/libarchive/libarchive-3.5.1-GCCcore-11.2.0.eb
@@ -22,7 +22,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.11'),
     ('XZ', '5.2.5'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libarchive/libarchive-3.6.1-GCCcore-11.3.0.eb b/easybuild/easyconfigs/l/libarchive/libarchive-3.6.1-GCCcore-11.3.0.eb
index bb86f508a755..2f0d0841e1b7 100644
--- a/easybuild/easyconfigs/l/libarchive/libarchive-3.6.1-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/l/libarchive/libarchive-3.6.1-GCCcore-11.3.0.eb
@@ -22,7 +22,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.12'),
     ('XZ', '5.2.5'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-10.3.0.eb b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-10.3.0.eb
index b5cc4b2c7c09..a5d36861e3f6 100644
--- a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-10.3.0.eb
@@ -29,7 +29,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.2.0.eb b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.2.0.eb
index ce86a4e932cc..03d032cf290f 100644
--- a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.2.0.eb
@@ -26,7 +26,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.3.0.eb b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.3.0.eb
index 09681e8d3632..d88edcd0b492 100644
--- a/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/l/libevent/libevent-2.1.12-GCCcore-11.3.0.eb
@@ -26,7 +26,7 @@ builddependencies = [
 
 dependencies = [
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libffi/libffi-3.2.1-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libffi/libffi-3.2.1-GCCcore-5.4.0.eb
index 380578da3598..1013ed198c1a 100644
--- a/easybuild/easyconfigs/l/libffi/libffi-3.2.1-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libffi/libffi-3.2.1-GCCcore-5.4.0.eb
@@ -20,7 +20,7 @@ checksums = [
     '078bec207fc3d5a0581f2a952d1c014b76a6e84a93a6a089ff9b9fe5b3908cb9',  # libffi-3.2.1_fix-include-location.patch
 ]
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': [('lib/libffi.%s' % SHLIB_EXT, 'lib64/libffi.%s' % SHLIB_EXT), ('lib/libffi.a', 'lib64/libffi.a')],
diff --git a/easybuild/easyconfigs/l/libgit2/libgit2-1.1.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/l/libgit2/libgit2-1.1.0-GCCcore-10.3.0.eb
index 363d1410af20..072c87fca911 100644
--- a/easybuild/easyconfigs/l/libgit2/libgit2-1.1.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/l/libgit2/libgit2-1.1.0-GCCcore-10.3.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
 
 dependencies = [
     ('PCRE', '8.44'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libgit2/libgit2-1.1.1-GCCcore-11.2.0.eb b/easybuild/easyconfigs/l/libgit2/libgit2-1.1.1-GCCcore-11.2.0.eb
index 085a5fb9f66b..67f2252522db 100644
--- a/easybuild/easyconfigs/l/libgit2/libgit2-1.1.1-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/l/libgit2/libgit2-1.1.1-GCCcore-11.2.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
 
 dependencies = [
     ('PCRE', '8.45'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libgit2/libgit2-1.4.3-GCCcore-11.3.0.eb b/easybuild/easyconfigs/l/libgit2/libgit2-1.4.3-GCCcore-11.3.0.eb
index c1884e0bb107..24bafd95d411 100644
--- a/easybuild/easyconfigs/l/libgit2/libgit2-1.4.3-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/l/libgit2/libgit2-1.4.3-GCCcore-11.3.0.eb
@@ -23,7 +23,7 @@ builddependencies = [
 
 dependencies = [
     ('PCRE', '8.45'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libidn2/libidn2-2.3.0-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libidn2/libidn2-2.3.0-GCCcore-5.4.0.eb
index 160e79719f91..4343922d7ce1 100644
--- a/easybuild/easyconfigs/l/libidn2/libidn2-2.3.0-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libidn2/libidn2-2.3.0-GCCcore-5.4.0.eb
@@ -13,7 +13,7 @@ source_urls = ['https://ftpmirror.gnu.org/gnu/libidn']
 sources = [SOURCELOWER_TAR_GZ]
 checksums = ['e1cb1db3d2e249a6a3eb6f0946777c2e892d5c5dc7bd91c74394fc3a01cab8b5']
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/idn2', 'lib/libidn2.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/l/libjpeg-turbo/libjpeg-turbo-1.5.0-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libjpeg-turbo/libjpeg-turbo-1.5.0-GCCcore-5.4.0.eb
index 886c796fe1a7..0a3c4a9ccac0 100644
--- a/easybuild/easyconfigs/l/libjpeg-turbo/libjpeg-turbo-1.5.0-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libjpeg-turbo/libjpeg-turbo-1.5.0-GCCcore-5.4.0.eb
@@ -19,7 +19,7 @@ dependencies = [
     ('NASM', '2.11.08'),
 ]
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 configopts = "--with-jpeg8"
 runtest = "test"
diff --git a/easybuild/easyconfigs/l/libpng/libpng-1.6.24-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libpng/libpng-1.6.24-GCCcore-5.4.0.eb
index c90941e7e9e1..5c9da9b3258f 100644
--- a/easybuild/easyconfigs/l/libpng/libpng-1.6.24-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libpng/libpng-1.6.24-GCCcore-5.4.0.eb
@@ -15,7 +15,7 @@ checksums = ['be46e0d14ccac3800f816ae860d191a1187a40164b7552c44afeee97a9caa0a3']
 
 dependencies = [('zlib', '1.2.8')]
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 configopts = "--with-pic"
 
diff --git a/easybuild/easyconfigs/l/libpng/libpng-1.6.28-GCCcore-6.3.0.eb b/easybuild/easyconfigs/l/libpng/libpng-1.6.28-GCCcore-6.3.0.eb
index 49f53a9c0c26..9cb10e366858 100644
--- a/easybuild/easyconfigs/l/libpng/libpng-1.6.28-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/l/libpng/libpng-1.6.28-GCCcore-6.3.0.eb
@@ -16,7 +16,7 @@ checksums = ['b6cec903e74e9fdd7b5bbcde0ab2415dd12f2f9e84d9e4d9ddd2ba26a41623b2']
 dependencies = [('zlib', '1.2.11')]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 configopts = "--with-pic"
 
diff --git a/easybuild/easyconfigs/l/libreadline/libreadline-6.3-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libreadline/libreadline-6.3-GCCcore-5.4.0.eb
index 4e54ffba1c27..21a8965354a1 100644
--- a/easybuild/easyconfigs/l/libreadline/libreadline-6.3-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libreadline/libreadline-6.3-GCCcore-5.4.0.eb
@@ -20,7 +20,7 @@ checksums = [
     '46317932e1af8c5e0916930e545a354f5ce821f34fa1c5b40619b77e50400ffd',  # libreadline-6.3-bugfix.patch
 ]
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 dependencies = [('ncurses', '6.0')]
 
diff --git a/easybuild/easyconfigs/l/libsamplerate/libsamplerate-0.1.9-GCCcore-8.2.0.eb b/easybuild/easyconfigs/l/libsamplerate/libsamplerate-0.1.9-GCCcore-8.2.0.eb
index 3e47dc3c6180..d0959ea0ceaa 100644
--- a/easybuild/easyconfigs/l/libsamplerate/libsamplerate-0.1.9-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/l/libsamplerate/libsamplerate-0.1.9-GCCcore-8.2.0.eb
@@ -15,7 +15,7 @@ checksums = ['0a7eb168e2f21353fb6d84da152e4512126f7dc48ccb0be80578c565413444c1']
 builddependencies = [
     ('binutils', '2.31.1'),
     # need to include gompi too to ensure FFTW can be loaded in case hierarchical module naming scheme is used
-    ('gompi', '2019a', '', True),
+    ('gompi', '2019a', '', SYSTEM),
     # FFTW is only required for tests
     ('FFTW', '3.3.8', '', ('gompi', '2019a')),
 ]
diff --git a/easybuild/easyconfigs/l/libtree/libtree-2.0.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/l/libtree/libtree-2.0.0-GCCcore-10.3.0.eb
index a3916dbea565..5e2eece33bbd 100644
--- a/easybuild/easyconfigs/l/libtree/libtree-2.0.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/l/libtree/libtree-2.0.0-GCCcore-10.3.0.eb
@@ -21,9 +21,9 @@ checksums = ['099e85d8ba3c3d849ce05b8ba2791dd25cd042a813be947fb321b0676ef71883']
 builddependencies = [
     ('binutils', '2.36.1'),
     ('CMake', '3.20.1'),
-    ('cxxopts', '3.0.0', '', True),
-    ('ELFIO', '3.9', '', True),
-    ('termcolor', '2.0.0', '', True),
+    ('cxxopts', '3.0.0', '', SYSTEM),
+    ('ELFIO', '3.9', '', SYSTEM),
+    ('termcolor', '2.0.0', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/l/libxcb/libxcb-1.13-GCCcore-6.4.0.eb b/easybuild/easyconfigs/l/libxcb/libxcb-1.13-GCCcore-6.4.0.eb
index 2ec01ebf7f2a..835f4ff45f33 100644
--- a/easybuild/easyconfigs/l/libxcb/libxcb-1.13-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/l/libxcb/libxcb-1.13-GCCcore-6.4.0.eb
@@ -16,7 +16,7 @@ checksums = ['0bb3cfd46dbd90066bf4d7de3cad73ec1024c7325a4a0cbf5f4a0d4fa91155fb']
 builddependencies = [
     ('binutils', '2.28'),
     ('pkg-config', '0.29.2'),
-    ('xcb-proto', '1.13', '', True),
+    ('xcb-proto', '1.13', '', SYSTEM),
     ('xproto', '7.0.31'),
     ('libpthread-stubs', '0.4'),
     ('xorg-macros', '1.19.1'),
diff --git a/easybuild/easyconfigs/l/libxml2/libxml2-2.9.4-GCCcore-5.4.0.eb b/easybuild/easyconfigs/l/libxml2/libxml2-2.9.4-GCCcore-5.4.0.eb
index 346410c130c9..7cfd54f4e1be 100644
--- a/easybuild/easyconfigs/l/libxml2/libxml2-2.9.4-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/l/libxml2/libxml2-2.9.4-GCCcore-5.4.0.eb
@@ -22,6 +22,6 @@ dependencies = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 moduleclass = 'lib'
diff --git a/easybuild/easyconfigs/l/libxml2/libxml2-2.9.5-GCCcore-6.3.0.eb b/easybuild/easyconfigs/l/libxml2/libxml2-2.9.5-GCCcore-6.3.0.eb
index 8452f3187e23..42dac0e7a799 100644
--- a/easybuild/easyconfigs/l/libxml2/libxml2-2.9.5-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/l/libxml2/libxml2-2.9.5-GCCcore-6.3.0.eb
@@ -22,6 +22,6 @@ dependencies = [
 ]
 
 # use same binutils version that was used when building GCCcore toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 moduleclass = 'lib'
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.2-binutils-2.25.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.2-binutils-2.25.eb
index fe7ed2be661e..d198d46a3082 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.2-binutils-2.25.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.2-binutils-2.25.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.3-binutils-2.25.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.3-binutils-2.25.eb
index 0f3443b3e7f5..da1de09fb7bc 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.3-binutils-2.25.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-4.9.3-binutils-2.25.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-5.1.0-binutils-2.25.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-5.1.0-binutils-2.25.eb
index 23ce8933d1c4..085515a2705b 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-5.1.0-binutils-2.25.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCC-5.1.0-binutils-2.25.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.2.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.2.eb
index 7886d1c9ada2..4fc80e53b4ac 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.2.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.2.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.3.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.3.eb
index 7b2232993344..0a707b51b00e 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.3.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.3.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.4.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.4.eb
index 45af326f45d6..5f4d20ef856f 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.4.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-4.9.4.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.25', '', True)]
+builddependencies = [('binutils', '2.25', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.3.0.eb
index e2473bcff4d6..c3716a65a866 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.3.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.4.0.eb
index d7aa39079a34..fe316e7657ac 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-5.4.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.1.0.eb
index 8f7d944e2e11..a8faaec39544 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.1.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCCcore
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.2.0.eb
index 70f9de4b6366..388f76f27532 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.17-GCCcore-6.2.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.1.0.eb
index 9bd978b3ec92..bd7b15d0f996 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.1.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.34', '', True)]
+builddependencies = [('binutils', '2.34', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.2.0.eb
index 50594f87ece0..40d8acc91af4 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.2.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.35', '', True)]
+builddependencies = [('binutils', '2.35', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.3.0.eb
index e7dee0ddd89e..aaa4eda2c913 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-10.3.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-11.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-11.1.0.eb
index e63d59120664..c1852324b5bd 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-11.1.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.3.0.eb
index 13063f1b7f66..90f3441ae31f 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.4.0.eb
index 362ecb6b5e53..44174916f398 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.4.0.eb
@@ -19,7 +19,7 @@ checksums = [
     'a613c18f00b1a3caa46ae4b8b849a0f4f71095ad860f4fcd6c6bb4ae211681fa',  # M4-1.4.18_glibc_2.28.patch
 ]
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.5.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.5.0.eb
index 7d867eee4d95..bb84008fe0db 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-5.5.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.3.0.eb
index 19fb0b8badd0..42ac05376423 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.27', '', True)]
+builddependencies = [('binutils', '2.27', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.4.0.eb
index 33da257c4415..abedf0b58b2c 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-6.4.0.eb
@@ -24,7 +24,7 @@ checksums = [
 
 # use same binutils version that was used when building GCC toolchain
 builddependencies = [
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.1.0.eb
index 4f300fc47cf5..70675bd26d41 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.1.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.28', '', True)]
+builddependencies = [('binutils', '2.28', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.2.0.eb
index f4ec9a042e1a..95c1d432cdf2 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.2.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.29', '', True)]
+builddependencies = [('binutils', '2.29', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.3.0.eb
index 709134121bfc..d435d9cf19f1 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.3.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.30', '', True)]
+builddependencies = [('binutils', '2.30', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.4.0.eb
index 89a858a24f82..18817b26e322 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-7.4.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.1.0.eb
index a92a076f9bcd..f268c01aaed7 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.1.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.30', '', True)]
+builddependencies = [('binutils', '2.30', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.2.0.eb
index 3f8004316c49..cdf833ca3941 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.3.0.eb
index 0d5a496fbf08..b21fcafc4f7f 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.4.0.eb
index c52483a837dc..30d2b32da00a 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-8.4.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.1.0.eb
index 7cb0d843963a..aac98bc3c120 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.2.0.eb
index 2d1822b64047..c70532aeb1f7 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.3.0.eb
index 5e4d0740ee77..61100b9eb44c 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.18-GCCcore-9.3.0.eb
@@ -19,7 +19,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.34', '', True)]
+builddependencies = [('binutils', '2.34', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.2.0.eb
index 0f426d46de59..7818364f1ae1 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.2.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.37', '', True)]
+builddependencies = [('binutils', '2.37', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.3.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.3.0.eb
index dfdd4df8d108..41a76cb08bac 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-11.3.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.1.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.1.0.eb
index b0d858612003..7e38a77b438f 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.1.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.2.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.2.0.eb
index 568d60035caa..4061197926d3 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-12.2.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.39', '', True)]
+builddependencies = [('binutils', '2.39', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.4.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.4.0.eb
index 6e539babe63a..e59b0628b8e7 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.4.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.5.0.eb b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.5.0.eb
index 95d679a09cf3..e586ce4a60a6 100644
--- a/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/m/M4/M4-1.4.19-GCCcore-9.5.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 # '-fgnu89-inline' is required to avoid linking errors with older glibc's,
 # see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
diff --git a/easybuild/easyconfigs/m/MATSim/MATSim-14.0-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/m/MATSim/MATSim-14.0-GCCcore-11.2.0-Java-11.eb
index dd2b476ec767..0c14fa807364 100644
--- a/easybuild/easyconfigs/m/MATSim/MATSim-14.0-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/m/MATSim/MATSim-14.0-GCCcore-11.2.0-Java-11.eb
@@ -14,7 +14,7 @@ sources = ['%(namelower)s-%(version)s-release.zip']
 checksums = ['17c7b785678cacd937f5df5b8c80398b73e2e9ceb07cc1ebd175fc94a65ce3c4']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Mesa', '21.1.7'),
     ('X11', '20210802'),
 ]
diff --git a/easybuild/easyconfigs/m/MDSplus-Java/MDSplus-Java-7.96.12-GCCcore-9.3.0-Java-13.eb b/easybuild/easyconfigs/m/MDSplus-Java/MDSplus-Java-7.96.12-GCCcore-9.3.0-Java-13.eb
index 3b6f548fcacb..e26b1a041354 100644
--- a/easybuild/easyconfigs/m/MDSplus-Java/MDSplus-Java-7.96.12-GCCcore-9.3.0-Java-13.eb
+++ b/easybuild/easyconfigs/m/MDSplus-Java/MDSplus-Java-7.96.12-GCCcore-9.3.0-Java-13.eb
@@ -24,7 +24,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
     ('MDSplus', version),
 ]
 
diff --git a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-2.7.16.eb
index 7f066294b579..61d2d07255fe 100644
--- a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-2.7.16.eb
@@ -15,7 +15,7 @@ sources = ['%s.tar.gz' % local_commit]
 checksums = ['7140934dc653ee5edf807120a8e9cf23a0bf72f01bbe4dfbe2a15206ce6812db']
 
 builddependencies = [
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-3.7.4.eb
index 7163dd84d46c..186b2b4b72a5 100644
--- a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0-rc-20191217-foss-2019b-Python-3.7.4.eb
@@ -15,7 +15,7 @@ sources = ['%s.tar.gz' % local_commit]
 checksums = ['7140934dc653ee5edf807120a8e9cf23a0bf72f01bbe4dfbe2a15206ce6812db']
 
 builddependencies = [
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC2-foss-2017a-Python-2.7.13.eb b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC2-foss-2017a-Python-2.7.13.eb
index aa0e747a561e..b8433c3a9de5 100644
--- a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC2-foss-2017a-Python-2.7.13.eb
+++ b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC2-foss-2017a-Python-2.7.13.eb
@@ -14,7 +14,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['88187f3498f4ee215b2a51d16acb7f2e6c33217e72403a7d48c2ec5da6e2218b']
 
 builddependencies = [
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC3-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC3-intel-2018a-Python-2.7.14.eb
index fc29aa69abd9..aaddadd44e2a 100644
--- a/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC3-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/m/MRtrix/MRtrix-3.0_RC3-intel-2018a-Python-2.7.14.eb
@@ -14,7 +14,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['1eebd96d476772b4f1aaad2d362af575e70fd2de0bede61a658758ffd9793b4d']
 
 builddependencies = [
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MariaDB/MariaDB-10.6.4-GCC-11.2.0.eb b/easybuild/easyconfigs/m/MariaDB/MariaDB-10.6.4-GCC-11.2.0.eb
index 55513948cdeb..c6e9f4939352 100644
--- a/easybuild/easyconfigs/m/MariaDB/MariaDB-10.6.4-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/m/MariaDB/MariaDB-10.6.4-GCC-11.2.0.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('Boost', '1.77.0'),    # needed by OQGraph
     ('Judy', '1.0.5'),      # needed by OQGraph
     ('PCRE2', '10.37'),
-    ('OpenSSL', '1.1', '', True),     # runtime dep for mysql and PCRE2 for mysqltest
+    ('OpenSSL', '1.1', '', SYSTEM),     # runtime dep for mysql and PCRE2 for mysqltest
 ]
 
 separate_build_dir = True
diff --git a/easybuild/easyconfigs/m/MariaDB/MariaDB-10.9.3-GCC-11.3.0.eb b/easybuild/easyconfigs/m/MariaDB/MariaDB-10.9.3-GCC-11.3.0.eb
index 0742cb59603e..12a89338f1ea 100644
--- a/easybuild/easyconfigs/m/MariaDB/MariaDB-10.9.3-GCC-11.3.0.eb
+++ b/easybuild/easyconfigs/m/MariaDB/MariaDB-10.9.3-GCC-11.3.0.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('Boost', '1.79.0'),    # needed by OQGraph
     ('Judy', '1.0.5'),      # needed by OQGraph
     ('PCRE2', '10.40'),
-    ('OpenSSL', '1.1', '', True),     # runtime dep for mysql and PCRE2 for mysqltest
+    ('OpenSSL', '1.1', '', SYSTEM),     # runtime dep for mysql and PCRE2 for mysqltest
 ]
 
 separate_build_dir = True
diff --git a/easybuild/easyconfigs/m/Megalodon/Megalodon-2.5.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/m/Megalodon/Megalodon-2.5.0-foss-2021a-CUDA-11.3.1.eb
index 121bec87c856..6e267773c526 100644
--- a/easybuild/easyconfigs/m/Megalodon/Megalodon-2.5.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/m/Megalodon/Megalodon-2.5.0-foss-2021a-CUDA-11.3.1.eb
@@ -12,7 +12,7 @@ genome/transriptome."""
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('h5py', '3.2.1'),
diff --git a/easybuild/easyconfigs/m/MiGEC/MiGEC-1.2.9-Java-1.8.eb b/easybuild/easyconfigs/m/MiGEC/MiGEC-1.2.9-Java-1.8.eb
index c1dfbf5a2706..ca85b3b0c8fd 100644
--- a/easybuild/easyconfigs/m/MiGEC/MiGEC-1.2.9-Java-1.8.eb
+++ b/easybuild/easyconfigs/m/MiGEC/MiGEC-1.2.9-Java-1.8.eb
@@ -19,7 +19,7 @@ source_urls = ['https://github.com/mikessh/migec/releases/download/%(version)s/'
 sources = ['%(namelower)s-%(version)s.zip']
 checksums = ['4a9ace1ab932d06154cdd3eaf6724f55c8dc5c3ce68108b8a4d30ecb0d58ea7e']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['migec', 'migec-%(version)s.jar'],
diff --git a/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.13-Java-1.8.eb b/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.13-Java-1.8.eb
index 4287f32cf3f9..93646ef7373a 100644
--- a/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.13-Java-1.8.eb
+++ b/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.13-Java-1.8.eb
@@ -19,7 +19,7 @@ source_urls = ['https://github.com/milaboratory/mixcr/releases/download/v%(versi
 sources = ['%(namelower)s-%(version)s.zip']
 checksums = ['f0b32efadf6dae95819cd90cf49978e48797fc9f2685af1fd282a47d3f9fda08']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['mixcr', 'mixcr.jar'],
diff --git a/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.3-Java-1.8.eb b/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.3-Java-1.8.eb
index 864fd64611c8..b1db223674b5 100644
--- a/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.3-Java-1.8.eb
+++ b/easybuild/easyconfigs/m/MiXCR/MiXCR-3.0.3-Java-1.8.eb
@@ -19,7 +19,7 @@ source_urls = ['https://github.com/milaboratory/mixcr/releases/download/v%(versi
 sources = ['%(namelower)s-%(version)s.zip']
 checksums = ['a969d815f8e7a8c3ffe082fdfe8f63cadbef7820b9299d648a454fe9480c72af']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['mixcr', 'mixcr.jar'],
diff --git a/easybuild/easyconfigs/m/MinCED/MinCED-0.4.2-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/m/MinCED/MinCED-0.4.2-GCCcore-8.3.0-Java-11.eb
index 4cb427655028..5301799bdd22 100644
--- a/easybuild/easyconfigs/m/MinCED/MinCED-0.4.2-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/m/MinCED/MinCED-0.4.2-GCCcore-8.3.0-Java-11.eb
@@ -19,7 +19,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['35b6ee22fe6bdc26a31d0203a7dcc6bd1a19fd6733c60d80ceb44431884af165']
 
 builddependencies = [('binutils', '2.32')]
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 # minced executable has to be in the same directory as jar
 files_to_copy = [(['minced', 'minced.jar'], 'bin')]
diff --git a/easybuild/easyconfigs/m/MitoZ/MitoZ-2.3-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/m/MitoZ/MitoZ-2.3-foss-2018b-Python-3.6.6.eb
index d5bfff121537..e33cd3c0183c 100644
--- a/easybuild/easyconfigs/m/MitoZ/MitoZ-2.3-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/m/MitoZ/MitoZ-2.3-foss-2018b-Python-3.6.6.eb
@@ -18,7 +18,7 @@ checksums = ['13fc5d3c6f41a6eb17498dfb1e69735a2b3f4e62ac7393d3ed71ea9502038841']
 dependencies = [
     ('Python', '3.6.6'),
     ('Perl', '5.28.0'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('libgd', '2.2.5'),
     ('Biopython', '1.72', versionsuffix),
     ('BioPerl', '1.7.2', '-Perl-%(perlver)s'),
@@ -28,7 +28,7 @@ dependencies = [
     ('SAMtools', '1.9'),
     ('Infernal', '1.1.2'),
     ('ETE', '3.1.1', versionsuffix),
-    ('tbl2asn', '20200302', '-linux64', True),
+    ('tbl2asn', '20200302', '-linux64', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/m/ModelTest-NG/ModelTest-NG-0.1.7-gompi-2021b.eb b/easybuild/easyconfigs/m/ModelTest-NG/ModelTest-NG-0.1.7-gompi-2021b.eb
index cf0f71ea2bc0..e07ae2579368 100644
--- a/easybuild/easyconfigs/m/ModelTest-NG/ModelTest-NG-0.1.7-gompi-2021b.eb
+++ b/easybuild/easyconfigs/m/ModelTest-NG/ModelTest-NG-0.1.7-gompi-2021b.eb
@@ -24,10 +24,10 @@ checksums = [None]
 
 builddependencies = [('CMake', '3.22.1')]
 
-dependencies = {
+dependencies = [
     ('flex', '2.6.4'),
-    ('Bison', '3.8.2', '', True)
-}
+    ('Bison', '3.8.2', '', SYSTEM)
+]
 
 files_to_copy = ['bin']
 
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.2.6-GCCcore-8.2.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.2.6-GCCcore-8.2.0.eb
index eb939d50379b..25197a7fbf6d 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.2.6-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.2.6-GCCcore-8.2.0.eb
@@ -36,7 +36,7 @@ checksums = [
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.31.1'),
-    ('CUDA', '10.1.105', '', True),
+    ('CUDA', '10.1.105', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.1-GCCcore-8.3.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.1-GCCcore-8.3.0.eb
index dfaa5e0b7fd7..3989ce20c547 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.1-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.1-GCCcore-8.3.0.eb
@@ -36,7 +36,7 @@ checksums = [
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.32'),
-    ('CUDA', '10.1.243', '', True),
+    ('CUDA', '10.1.243', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.2-GCCcore-8.3.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.2-GCCcore-8.3.0.eb
index c0a0396d15da..29958aa847cd 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.2-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.3.2-GCCcore-8.3.0.eb
@@ -36,7 +36,7 @@ checksums = [
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.32'),
-    ('CUDA', '10.1.243', '', True),
+    ('CUDA', '10.1.243', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.2-GCCcore-10.2.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.2-GCCcore-10.2.0.eb
index 4f2bf4aeabb9..0bbb8322a601 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.2-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.2-GCCcore-10.2.0.eb
@@ -34,7 +34,7 @@ checksums = ['5a1b952f46816e396b918b92fcb118376c02be3636371bd6fcef00f315685b8d']
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.35'),
-    ('CUDAcore', '11.1.1', '', True),
+    ('CUDAcore', '11.1.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.2.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.2.0.eb
index ed127443bf84..836b2d4668c5 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.2.0.eb
@@ -32,7 +32,7 @@ checksums = ['128f5cdf83b5023204c10b4801baa13f0a56a950e0bc6e0ed26c7f3aa1df59d7']
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.35'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.3.0.eb b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.3.0.eb
index 642b53c9aeb6..632abd81b225 100644
--- a/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/m/MotionCor2/MotionCor2-1.4.4-GCCcore-10.3.0.eb
@@ -32,7 +32,7 @@ checksums = ['128f5cdf83b5023204c10b4801baa13f0a56a950e0bc6e0ed26c7f3aa1df59d7']
 # of MotionCor2
 builddependencies = [
     ('binutils', '2.36.1'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/m/MuPeXI/MuPeXI-1.2.0-foss-2018b-Perl-5.28.0-Python-2.7.15.eb b/easybuild/easyconfigs/m/MuPeXI/MuPeXI-1.2.0-foss-2018b-Perl-5.28.0-Python-2.7.15.eb
index 839d76741293..4fcc2d912354 100644
--- a/easybuild/easyconfigs/m/MuPeXI/MuPeXI-1.2.0-foss-2018b-Perl-5.28.0-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/m/MuPeXI/MuPeXI-1.2.0-foss-2018b-Perl-5.28.0-Python-2.7.15.eb
@@ -23,7 +23,7 @@ checksums = [
 dependencies = [
     ('Python', '2.7.15'),
     ('Perl', '5.28.0'),
-    ('netMHCpan', '4.0a', '', True),
+    ('netMHCpan', '4.0a', '', SYSTEM),
     ('VEP', '94.0', '-Perl-%(perlver)s'),
     ('Biopython', '1.72', '-Python-%(pyver)s'),
     ('psutil', '5.4.7', '-Python-%(pyver)s'),
diff --git a/easybuild/easyconfigs/m/MyCC/MyCC-2017-03-01-intel-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/m/MyCC/MyCC-2017-03-01-intel-2019b-Python-2.7.16.eb
index 6a07a6250577..af248bb974a3 100644
--- a/easybuild/easyconfigs/m/MyCC/MyCC-2017-03-01-intel-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/m/MyCC/MyCC-2017-03-01-intel-2019b-Python-2.7.16.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('matplotlib', '2.2.4', versionsuffix),
     ('prodigal', '2.6.3'),
     ('fetchMG', '1.0'),
-    ('UCLUST', '1.2.22q', '-i86linux64', True),
+    ('UCLUST', '1.2.22q', '-i86linux64', SYSTEM),
     ('CD-HIT', '4.8.1'),
     ('tsne', '0.1.8', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/m/magma/magma-2.3.0-foss-2018a-CUDA-9.1.85.eb b/easybuild/easyconfigs/m/magma/magma-2.3.0-foss-2018a-CUDA-9.1.85.eb
index 0791cbd4c8e9..36e4ae6c3904 100644
--- a/easybuild/easyconfigs/m/magma/magma-2.3.0-foss-2018a-CUDA-9.1.85.eb
+++ b/easybuild/easyconfigs/m/magma/magma-2.3.0-foss-2018a-CUDA-9.1.85.eb
@@ -20,7 +20,7 @@ checksums = [
     '47e734cf30577b563377c946fb7897da2fd53d050f7e4fe83d8bb11b8d157913',  # magma-2.3.0-fix-makefile.patch
 ]
 
-dependencies = [('CUDA', local_cuda_ver, '', True)]
+dependencies = [('CUDA', local_cuda_ver, '', SYSTEM)]
 
 skipsteps = ['configure']
 
diff --git a/easybuild/easyconfigs/m/magma/magma-2.6.1-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/m/magma/magma-2.6.1-foss-2021a-CUDA-11.3.1.eb
index 8b6cf89878b1..18427a5c0bfd 100644
--- a/easybuild/easyconfigs/m/magma/magma-2.6.1-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/m/magma/magma-2.6.1-foss-2021a-CUDA-11.3.1.eb
@@ -24,7 +24,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 # default CUDA compute capabilities to use (override via --cuda-compute-capabilities)
diff --git a/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2021b-CUDA-11.4.1.eb
index da5c2d7e1a57..e1b180e8d152 100644
--- a/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2021b-CUDA-11.4.1.eb
@@ -24,7 +24,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
 ]
 
 # default CUDA compute capabilities to use (override via --cuda-compute-capabilities)
diff --git a/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2022a-CUDA-11.7.0.eb b/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2022a-CUDA-11.7.0.eb
index de1fa80521ad..5c0b53f2a561 100644
--- a/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2022a-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/m/magma/magma-2.6.2-foss-2022a-CUDA-11.7.0.eb
@@ -24,7 +24,7 @@ builddependencies = [
     ('CMake', '3.23.1'),
 ]
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('UCX-CUDA', '1.12.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2-foss-2018b-Python-2.7.15.eb
index 0340543f67dd..4e25ce407a7a 100644
--- a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2-foss-2018b-Python-2.7.15.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('Seaborn', '0.9.0', versionsuffix),
     ('BLAST+', '2.7.1'),
     ('Bowtie2', '2.3.4.2'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('Trim_Galore', '0.6.0', versionsuffix),
     ('bmtagger', '3.101'),
     ('taxator-tk', '1.3.3'),
diff --git a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2.2-foss-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2.2-foss-2019a-Python-2.7.15.eb
index c8c34cc86a5b..9e626cd3f735 100644
--- a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2.2-foss-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.2.2-foss-2019a-Python-2.7.15.eb
@@ -21,7 +21,7 @@ sources = [{'download_filename': '%s.tar.gz' % local_commit, 'filename': SOURCE_
 checksums = ['67e1d86cafc20a8b2713000d18a169a25b4a7dd7c2d4433b51b2e8ad1d4627ff']
 
 builddependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 # see https://github.com/bxlab/metaWRAP/blob/master/installation/dependancies.md
@@ -44,7 +44,7 @@ dependencies = [
     ('Seaborn', '0.9.0', versionsuffix),
     ('BLAST+', '2.9.0'),
     ('Bowtie2', '2.3.5.1'),
-    ('FastQC', '0.11.8', '-Java-11', True),
+    ('FastQC', '0.11.8', '-Java-11', SYSTEM),
     ('Trim_Galore', '0.6.2', '-Java-11'),
     ('bmtagger', '3.101'),
     ('taxator-tk', '1.3.3'),
diff --git a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.3-foss-2020b-Python-2.7.18.eb b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.3-foss-2020b-Python-2.7.18.eb
index bb979fb26e2d..382b15693e9c 100644
--- a/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.3-foss-2020b-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/m/metaWRAP/metaWRAP-1.3-foss-2020b-Python-2.7.18.eb
@@ -17,7 +17,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['ffdbccf340dc0b1ebd0ad6f222e3bdef1e22bbd6e4e5156bf93500a3a834dd52']
 
 builddependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 # see https://github.com/bxlab/metaWRAP/blob/master/installation/dependancies.md
@@ -30,7 +30,7 @@ dependencies = [
     ('Bowtie2', '2.4.2'),
     ('BWA', '0.7.17'),
     ('CheckM', '1.0.18', versionsuffix),
-    ('FastQC', '0.11.9', '-Java-11', True),
+    ('FastQC', '0.11.9', '-Java-11', SYSTEM),
     ('Kraken', '1.1.1'),
     ('KronaTools', '2.8'),
     ('MEGAHIT', '1.2.9', versionsuffix),
diff --git a/easybuild/easyconfigs/m/methylpy/methylpy-1.2.9-foss-2021b.eb b/easybuild/easyconfigs/m/methylpy/methylpy-1.2.9-foss-2021b.eb
index c66bd30a7172..ffeef5eccb8c 100644
--- a/easybuild/easyconfigs/m/methylpy/methylpy-1.2.9-foss-2021b.eb
+++ b/easybuild/easyconfigs/m/methylpy/methylpy-1.2.9-foss-2021b.eb
@@ -19,7 +19,7 @@ dependencies = [
     ('Bowtie2', '2.4.4'),
     ('Bowtie', '1.3.1'),
     ('SAMtools', '1.14'),
-    ('picard', '2.25.1', '-Java-11', True),
+    ('picard', '2.25.1', '-Java-11', SYSTEM),
     ('GSL', '2.7'),
     ('Kent_tools', '422'),
 ]
diff --git a/easybuild/easyconfigs/m/mold/mold-0.9.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/m/mold/mold-0.9.6-GCCcore-11.2.0.eb
index d5203935c90f..c7fdb119d30f 100644
--- a/easybuild/easyconfigs/m/mold/mold-0.9.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/m/mold/mold-0.9.6-GCCcore-11.2.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
 dependencies = [
     ('xxHash', '0.8.0'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 skipsteps = ['configure']
diff --git a/easybuild/easyconfigs/m/mold/mold-1.0.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/m/mold/mold-1.0.0-GCCcore-11.2.0.eb
index 98e1d3c8a65f..abcdedea8e6a 100644
--- a/easybuild/easyconfigs/m/mold/mold-1.0.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/m/mold/mold-1.0.0-GCCcore-11.2.0.eb
@@ -19,7 +19,7 @@ builddependencies = [
 dependencies = [
     ('xxHash', '0.8.0'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 skipsteps = ['configure']
diff --git a/easybuild/easyconfigs/m/mold/mold-1.2.1-GCCcore-11.3.0.eb b/easybuild/easyconfigs/m/mold/mold-1.2.1-GCCcore-11.3.0.eb
index fe82f3d27ad0..7dbc871c42a5 100644
--- a/easybuild/easyconfigs/m/mold/mold-1.2.1-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/m/mold/mold-1.2.1-GCCcore-11.3.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
 ]
 dependencies = [
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 skipsteps = ['configure']
diff --git a/easybuild/easyconfigs/m/mold/mold-1.3.0-GCCcore-11.3.0.eb b/easybuild/easyconfigs/m/mold/mold-1.3.0-GCCcore-11.3.0.eb
index e78902943a22..874c4beff87c 100644
--- a/easybuild/easyconfigs/m/mold/mold-1.3.0-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/m/mold/mold-1.3.0-GCCcore-11.3.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
 ]
 dependencies = [
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 skipsteps = ['configure']
diff --git a/easybuild/easyconfigs/n/NASM/NASM-2.11.08-GCCcore-5.4.0.eb b/easybuild/easyconfigs/n/NASM/NASM-2.11.08-GCCcore-5.4.0.eb
index 59d28ad1faca..4cb8911d18f7 100644
--- a/easybuild/easyconfigs/n/NASM/NASM-2.11.08-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/n/NASM/NASM-2.11.08-GCCcore-5.4.0.eb
@@ -12,7 +12,7 @@ source_urls = ['http://www.nasm.us/pub/nasm/releasebuilds/%(version)s']
 sources = [SOURCELOWER_TAR_BZ2]
 checksums = ['9da3a0291a0bdc06305b7ba194f1e2c2b55ae6f11210b4af43729868149d5445']
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/nasm'],
diff --git a/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-10.3.0-CUDA-11.3.1.eb b/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-10.3.0-CUDA-11.3.1.eb
index ce83714e0e13..16e18e8e36e1 100644
--- a/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-10.3.0-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-10.3.0-CUDA-11.3.1.eb
@@ -16,7 +16,7 @@ checksums = ['55de166eb7dcab9ecef2629cdb5fb0c5ebec4fae03589c469ebe5dcb5716b3c5']
 builddependencies = [('binutils', '2.36.1')]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('UCX-CUDA', '1.10.0', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-11.2.0-CUDA-11.4.1.eb b/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-11.2.0-CUDA-11.4.1.eb
index 6375266362fe..63927a18ac15 100644
--- a/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-11.2.0-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/n/NCCL/NCCL-2.10.3-GCCcore-11.2.0-CUDA-11.4.1.eb
@@ -16,7 +16,7 @@ checksums = ['55de166eb7dcab9ecef2629cdb5fb0c5ebec4fae03589c469ebe5dcb5716b3c5']
 builddependencies = [('binutils', '2.37')]
 
 dependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('UCX-CUDA', '1.11.2', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/n/NCCL/NCCL-2.12.12-GCCcore-11.3.0-CUDA-11.7.0.eb b/easybuild/easyconfigs/n/NCCL/NCCL-2.12.12-GCCcore-11.3.0-CUDA-11.7.0.eb
index 026964019f78..2282286a9154 100644
--- a/easybuild/easyconfigs/n/NCCL/NCCL-2.12.12-GCCcore-11.3.0-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/n/NCCL/NCCL-2.12.12-GCCcore-11.3.0-CUDA-11.7.0.eb
@@ -16,7 +16,7 @@ checksums = ['49b4fbfeebf1f62f6ceb69e72504045d8d1b4e7609e3c2477906f3004c7e2d82']
 builddependencies = [('binutils', '2.38')]
 
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('UCX-CUDA', '1.12.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-10.2.0-CUDA-11.1.1.eb b/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-10.2.0-CUDA-11.1.1.eb
index cbf8532c70ea..81fa9b3dfaa7 100644
--- a/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-10.2.0-CUDA-11.1.1.eb
+++ b/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-10.2.0-CUDA-11.1.1.eb
@@ -10,8 +10,8 @@ communication primitives that are performance optimized for NVIDIA GPUs."""
 
 toolchain = {'name': 'GCCcore', 'version': local_gcc_ver}
 
-builddependencies = [('GCC', local_gcc_ver, '', True)]
-dependencies = [('CUDAcore', local_cuda_version, '', True)]
+builddependencies = [('GCC', local_gcc_ver, '', SYSTEM)]
+dependencies = [('CUDAcore', local_cuda_version, '', SYSTEM)]
 
 github_account = 'NVIDIA'
 source_urls = [GITHUB_SOURCE]
diff --git a/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-9.3.0-CUDA-11.0.2.eb b/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-9.3.0-CUDA-11.0.2.eb
index 50bb04e3b90b..140a12a45757 100644
--- a/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-9.3.0-CUDA-11.0.2.eb
+++ b/easybuild/easyconfigs/n/NCCL/NCCL-2.8.3-GCCcore-9.3.0-CUDA-11.0.2.eb
@@ -10,8 +10,8 @@ communication primitives that are performance optimized for NVIDIA GPUs."""
 
 toolchain = {'name': 'GCCcore', 'version': local_gcc_ver}
 
-builddependencies = [('GCC', local_gcc_ver, '', True)]
-dependencies = [('CUDAcore', local_cuda_version, '', True)]
+builddependencies = [('GCC', local_gcc_ver, '', SYSTEM)]
+dependencies = [('CUDAcore', local_cuda_version, '', SYSTEM)]
 
 github_account = 'NVIDIA'
 source_urls = [GITHUB_SOURCE]
diff --git a/easybuild/easyconfigs/n/NGS/NGS-1.3.0-GCCcore-6.4.0.eb b/easybuild/easyconfigs/n/NGS/NGS-1.3.0-GCCcore-6.4.0.eb
index 85280ff59709..c6bfafd32a67 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-1.3.0-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-1.3.0-GCCcore-6.4.0.eb
@@ -13,7 +13,7 @@ source_urls = ['https://github.com/ncbi/ngs/archive/']
 sources = ['%(version)s.tar.gz']
 checksums = ['803c650a6de5bb38231d9ced7587f3ab788b415cac04b0ef4152546b18713ef2']
 
-dependencies = [('Java', '1.8.0_192', '', True)]
+dependencies = [('Java', '1.8.0_192', '', SYSTEM)]
 
 builddependencies = [
     ('binutils', '2.28'),
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-1.8.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-1.8.eb
index bc20255c0821..de7c2047d299 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-1.8.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-1.8.eb
@@ -20,7 +20,7 @@ checksums = ['4139adff83af213d7880bc80d1c0f5ee9b00c6c4e615d00aa47aaa267e40ed25']
 
 builddependencies = [('binutils', '2.31.1')]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 # override default of using $HOME/ncbi-outdir
 configopts = "--build-prefix=%(builddir)s/ncbi-outdir"
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-11.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-11.eb
index f32799f658ea..c95aef751b32 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.0-GCCcore-8.2.0-Java-11.eb
@@ -20,7 +20,7 @@ checksums = ['4139adff83af213d7880bc80d1c0f5ee9b00c6c4e615d00aa47aaa267e40ed25']
 
 builddependencies = [('binutils', '2.31.1')]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 # override default of using $HOME/ncbi-outdir
 configopts = "--build-prefix=%(builddir)s/ncbi-outdir"
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.4-GCCcore-8.3.0-Java-11.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.4-GCCcore-8.3.0-Java-11.eb
index bf41fbf66b74..04f599cb3a4f 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.4-GCCcore-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.4-GCCcore-8.3.0-Java-11.eb
@@ -15,7 +15,7 @@ builddependencies = [
     ('Perl', '5.30.0'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 default_easyblock = 'ConfigureMake'
 default_component_specs = {
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.5-GCCcore-9.3.0.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.5-GCCcore-9.3.0.eb
index 8a3ae837e9e9..c6f2f988ec13 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.5-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.5-GCCcore-9.3.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('Perl', '5.30.2'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 default_easyblock = 'ConfigureMake'
 default_component_specs = {
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.2.0.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.2.0.eb
index 3ca4af87ce90..3ef383ecc8b2 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.2.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('Perl', '5.32.0'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 default_easyblock = 'ConfigureMake'
 default_component_specs = {
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.3.0.eb b/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.3.0.eb
index f07787644a5a..9c8a9ae50265 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.10.9-GCCcore-10.3.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('Perl', '5.32.1'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 default_easyblock = 'ConfigureMake'
 default_component_specs = {
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.11.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/n/NGS/NGS-2.11.2-GCCcore-11.2.0.eb
index d410657900f6..785c1683f20a 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.11.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.11.2-GCCcore-11.2.0.eb
@@ -14,7 +14,7 @@ builddependencies = [
     ('Perl', '5.34.0', '-minimal'),
 ]
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 default_easyblock = 'ConfigureMake'
 default_component_specs = {
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.9.1-foss-2018a-Java-1.8.0_162.eb b/easybuild/easyconfigs/n/NGS/NGS-2.9.1-foss-2018a-Java-1.8.0_162.eb
index 8c00266c3600..1255f097104e 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.9.1-foss-2018a-Java-1.8.0_162.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.9.1-foss-2018a-Java-1.8.0_162.eb
@@ -14,7 +14,7 @@ source_urls = ['https://github.com/ncbi/ngs/archive/']
 sources = ['%(version)s.tar.gz']
 checksums = ['c24c93bd70ed198a44c6b9dba0d6704edc90f228f832f2fef21fa5342303fc50']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 # override default of using $HOME/ncbi-outdir
 configopts = "--build-prefix=%(builddir)s/ncbi-outdir"
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.9.1-intel-2018a-Java-1.8.0_162.eb b/easybuild/easyconfigs/n/NGS/NGS-2.9.1-intel-2018a-Java-1.8.0_162.eb
index ec99368e8875..6f21a2ce8b4c 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.9.1-intel-2018a-Java-1.8.0_162.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.9.1-intel-2018a-Java-1.8.0_162.eb
@@ -14,7 +14,7 @@ source_urls = ['https://github.com/ncbi/ngs/archive/']
 sources = ['%(version)s.tar.gz']
 checksums = ['c24c93bd70ed198a44c6b9dba0d6704edc90f228f832f2fef21fa5342303fc50']
 
-dependencies = [('Java', '1.8.0_162', '', True)]
+dependencies = [('Java', '1.8.0_162', '', SYSTEM)]
 
 # override default of using $HOME/ncbi-outdir
 configopts = "--build-prefix=%(builddir)s/ncbi-outdir"
diff --git a/easybuild/easyconfigs/n/NGS/NGS-2.9.3-foss-2018b-Java-1.8.eb b/easybuild/easyconfigs/n/NGS/NGS-2.9.3-foss-2018b-Java-1.8.eb
index b65402280d41..37d4558ef190 100644
--- a/easybuild/easyconfigs/n/NGS/NGS-2.9.3-foss-2018b-Java-1.8.eb
+++ b/easybuild/easyconfigs/n/NGS/NGS-2.9.3-foss-2018b-Java-1.8.eb
@@ -14,7 +14,7 @@ source_urls = ['https://github.com/ncbi/ngs/archive/']
 sources = ['%(version)s.tar.gz']
 checksums = ['d16cdf340f4c66e449cc490a222e54e9074cd15fe0938cb75b951a72985f757d']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 # override default of using $HOME/ncbi-outdir
 configopts = "--build-prefix=%(builddir)s/ncbi-outdir"
diff --git a/easybuild/easyconfigs/n/NIMBLE/NIMBLE-0.7.0-foss-2018b-R-3.5.1.eb b/easybuild/easyconfigs/n/NIMBLE/NIMBLE-0.7.0-foss-2018b-R-3.5.1.eb
index 492ce96c1a94..bd388fb75829 100644
--- a/easybuild/easyconfigs/n/NIMBLE/NIMBLE-0.7.0-foss-2018b-R-3.5.1.eb
+++ b/easybuild/easyconfigs/n/NIMBLE/NIMBLE-0.7.0-foss-2018b-R-3.5.1.eb
@@ -17,7 +17,7 @@ source_urls = [
 sources = ['%(namelower)s_%(version)s.tar.gz']
 checksums = ['661a5bb626164c145ae9c5ba5c3d9c30b0ecc1b83d86eae25d83745324906f7e']
 
-builddependencies = [('Eigen', '3.3.7', '', True)]
+builddependencies = [('Eigen', '3.3.7', '', SYSTEM)]
 
 dependencies = [('R', '3.5.1')]
 
diff --git a/easybuild/easyconfigs/n/NVSHMEM/NVSHMEM-2.5.0-gompi-2022a-CUDA-11.7.0.eb b/easybuild/easyconfigs/n/NVSHMEM/NVSHMEM-2.5.0-gompi-2022a-CUDA-11.7.0.eb
index 5c22660ad0b0..db905d3342f3 100644
--- a/easybuild/easyconfigs/n/NVSHMEM/NVSHMEM-2.5.0-gompi-2022a-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/n/NVSHMEM/NVSHMEM-2.5.0-gompi-2022a-CUDA-11.7.0.eb
@@ -27,7 +27,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('UCX-CUDA', '1.12.1', versionsuffix),
     ('NCCL', '2.12.12', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.04.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.04.0.eb
index 4c737da9890a..b145b8018a31 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.04.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.04.0.eb
@@ -17,7 +17,7 @@ sources = ['%(namelower)s-%(version)s-all']
 checksums = ['10d96864489a5d6b4de3a730307871ca865e2f1c49a14cd5c4051cae5dca8d8e']
 
 # specify dependency on Java/1.8 "wrapper", rather than a specific Java version
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 install_cmd = "[ -d %(builddir)s/bin ] || mkdir -p %(installdir)s/bin &&"
 install_cmd += "cp %(builddir)s/nextflow-%(version)s-all %(installdir)s/bin &&"
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.07.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.07.0.eb
index 1e97a00e55f4..87b4b2386928 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.07.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.07.0.eb
@@ -17,7 +17,7 @@ sources = ['%(namelower)s-%(version)s-all']
 checksums = ['6f7069b43f395c5d902321745d37988fed7ef84d2006ea00be0df19de97c1986']
 
 # specify dependency on Java/1.8 "wrapper", rather than a specific Java version
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 install_cmd = "[ -d %(builddir)s/bin ] || mkdir -p %(installdir)s/bin &&"
 install_cmd += "cp %(builddir)s/%(namelower)s-%(version)s-all %(installdir)s/bin &&"
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.12.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.12.0.eb
index 4cb30cd77477..f7ce8ad37cd4 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-19.12.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-19.12.0.eb
@@ -24,7 +24,7 @@ sources = ['v%(version)s-edge.tar.gz']
 checksums = ['16d38a14aeab636531da6d5d1894898d13a359c5f699eefcfb433fc3340e1b8a']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.01.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.01.0.eb
index 012c69b71dfc..90347313e4ca 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.01.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.01.0.eb
@@ -25,7 +25,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['011b0b74df612a001bee05c75ee3eb93caff76eb2facd39527a092b86c3373ab']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.04.1.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.04.1.eb
index cf8212fe26f7..f55c9aac6685 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.04.1.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.04.1.eb
@@ -25,7 +25,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['ec939568585454cad3ab1a4f6510f0dee707e02ce44324bd43a05e5601d28136']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.10.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.10.0.eb
index 01b4e6dcf2f8..029737900a7e 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-20.10.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-20.10.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['5ebf674c75ff73cd7a090921942fb1234653f50beaac09962022f20fa2ef4fc9']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.03.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.03.0.eb
index d7d137ebdf3b..4ee8f8aca28e 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.03.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.03.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s-edge.tar.gz']
 checksums = ['7b10fe1d8cf5dc6aba810e36b28aa360cd186cd583208542422daf1f08089692']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.08.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.08.0.eb
index 7e99ffb9bd60..42acc235e75a 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.08.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.08.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s-edge.tar.gz']
 checksums = ['ab47af92e6f5c5c08a43b70e60cc3d8720e267a507f21af62ac24805b02a2e8b']
 
 # specify dependency on Java/13 "wrapper", rather than a specific Java version
-dependencies = [('Java', '13', '', True)]
+dependencies = [('Java', '13', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.10.6.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.10.6.eb
index ed4ceee4b286..d610c0c4a0db 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-21.10.6.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-21.10.6.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['91b108cba321cb5500e2e811c446b04aee152dc2f97cb2cf4ae00eeecd4f332f']
 
 # specify dependency on Java/13 "wrapper", rather than a specific Java version
-dependencies = [('Java', '13', '', True)]
+dependencies = [('Java', '13', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/Nextflow/Nextflow-22.04.0.eb b/easybuild/easyconfigs/n/Nextflow/Nextflow-22.04.0.eb
index 14616b6305dc..1dd727aee12a 100644
--- a/easybuild/easyconfigs/n/Nextflow/Nextflow-22.04.0.eb
+++ b/easybuild/easyconfigs/n/Nextflow/Nextflow-22.04.0.eb
@@ -14,7 +14,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['4547a82228d1ad8615dd9916cd47a64a397405058579c0557cd11540633713ad']
 
 # specify dependency on Java/11 "wrapper", rather than a specific Java version
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 skipsteps = ['configure', 'build']
 
diff --git a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-foss-2018b-Python-2.7.15.eb
index 801d95801e6e..91d4c8cbd71f 100644
--- a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-foss-2018b-Python-2.7.15.eb
@@ -22,7 +22,7 @@ checksums = [
     'f8b1ce2c07adb56b4f13337ef008e124255f86cdb7e74e4233afa8dca878ee1a',  # fast5-v0.6.5.tar.gz
 ]
 
-builddependencies = [('Eigen', '3.3.5', '', True)]
+builddependencies = [('Eigen', '3.3.5', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-intel-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-intel-2018b-Python-2.7.15.eb
index 6799dfdb146c..98affa6d3c8e 100644
--- a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-intel-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.10.2-intel-2018b-Python-2.7.15.eb
@@ -22,7 +22,7 @@ checksums = [
     'f8b1ce2c07adb56b4f13337ef008e124255f86cdb7e74e4233afa8dca878ee1a',  # fast5-v0.6.5.tar.gz
 ]
 
-builddependencies = [('Eigen', '3.3.4', '', True)]
+builddependencies = [('Eigen', '3.3.4', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.1-foss-2018b-Python-3.6.6.eb
index 8bfbce42b875..ec682cb63db2 100644
--- a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.1-foss-2018b-Python-3.6.6.eb
@@ -22,7 +22,7 @@ checksums = [
     'f8b1ce2c07adb56b4f13337ef008e124255f86cdb7e74e4233afa8dca878ee1a',  # fast5-v0.6.5.tar.gz
 ]
 
-builddependencies = [('Eigen', '3.3.7', '', True)]
+builddependencies = [('Eigen', '3.3.7', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.2-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.2-foss-2020a-Python-3.8.2.eb
index 5a800af7bf50..edaace23ac2b 100644
--- a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.2-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.13.2-foss-2020a-Python-3.8.2.eb
@@ -23,7 +23,7 @@ checksums = [
     'f8b1ce2c07adb56b4f13337ef008e124255f86cdb7e74e4233afa8dca878ee1a',  # fast5-v0.6.5.tar.gz
 ]
 
-builddependencies = [('Eigen', '3.3.7', '', True)]
+builddependencies = [('Eigen', '3.3.7', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.9.2-intel-2018a.eb b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.9.2-intel-2018a.eb
index f7f74b3e462f..b6658ad065b9 100644
--- a/easybuild/easyconfigs/n/nanopolish/nanopolish-0.9.2-intel-2018a.eb
+++ b/easybuild/easyconfigs/n/nanopolish/nanopolish-0.9.2-intel-2018a.eb
@@ -21,7 +21,7 @@ checksums = [
     'f8b1ce2c07adb56b4f13337ef008e124255f86cdb7e74e4233afa8dca878ee1a',  # fast5-v0.6.5.tar.gz
 ]
 
-builddependencies = [('Eigen', '3.3.4', '', True)]
+builddependencies = [('Eigen', '3.3.4', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/n/nghttp2/nghttp2-1.48.0-GCC-11.2.0.eb b/easybuild/easyconfigs/n/nghttp2/nghttp2-1.48.0-GCC-11.2.0.eb
index a8a803600e1a..52735d765394 100644
--- a/easybuild/easyconfigs/n/nghttp2/nghttp2-1.48.0-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/n/nghttp2/nghttp2-1.48.0-GCC-11.2.0.eb
@@ -35,7 +35,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('nghttp3', '0.6.0'),
     ('Python', '3.9.6'),
     ('libxml2', '2.9.10'),
diff --git a/easybuild/easyconfigs/n/ngtcp2/ngtcp2-0.7.0-GCC-11.2.0.eb b/easybuild/easyconfigs/n/ngtcp2/ngtcp2-0.7.0-GCC-11.2.0.eb
index 72ff0976e459..2c658278a18d 100644
--- a/easybuild/easyconfigs/n/ngtcp2/ngtcp2-0.7.0-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/n/ngtcp2/ngtcp2-0.7.0-GCC-11.2.0.eb
@@ -29,7 +29,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('GnuTLS', '3.7.3'),
     ('nghttp3', '0.6.0'),
     ('libev', '4.33'),
diff --git a/easybuild/easyconfigs/n/numba/numba-0.54.1-foss-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/n/numba/numba-0.54.1-foss-2021b-CUDA-11.4.1.eb
index f3783e2fc9e3..60d55c02ccce 100644
--- a/easybuild/easyconfigs/n/numba/numba-0.54.1-foss-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/n/numba/numba-0.54.1-foss-2021b-CUDA-11.4.1.eb
@@ -18,7 +18,7 @@ dependencies = [
     ('Python', '3.9.6'),
     ('SciPy-bundle', '2021.10'),
     ('LLVM', '12.0.1'),
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/o/ONNX-Runtime/ONNX-Runtime-1.10.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/ONNX-Runtime/ONNX-Runtime-1.10.0-foss-2021a-CUDA-11.3.1.eb
index 02d864af126a..a2434cbbc44d 100644
--- a/easybuild/easyconfigs/o/ONNX-Runtime/ONNX-Runtime-1.10.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/ONNX-Runtime/ONNX-Runtime-1.10.0-foss-2021a-CUDA-11.3.1.eb
@@ -27,7 +27,7 @@ checksums = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('ONNX', '1.11.0'),
     ('flatbuffers-python', '2.0'),
diff --git a/easybuild/easyconfigs/o/OR-Tools/OR-Tools-7.1-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/o/OR-Tools/OR-Tools-7.1-foss-2019a-Python-3.7.2.eb
index 9c57ffb879e9..6e9d0724196d 100644
--- a/easybuild/easyconfigs/o/OR-Tools/OR-Tools-7.1-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/o/OR-Tools/OR-Tools-7.1-foss-2019a-Python-3.7.2.eb
@@ -30,9 +30,9 @@ local_gurobiver = '8.1.1'
 dependencies = [
     ('Python', '3.7.2'),
     ('zlib', '1.2.11'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # Gurobi is optional
-    ('Gurobi', local_gurobiver, '', True),
+    ('Gurobi', local_gurobiver, '', SYSTEM),
 ]
 
 skipsteps = ['configure']
diff --git a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-gompi-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-gompi-2021a-CUDA-11.3.1.eb
index 81a663791ded..cd846a702185 100644
--- a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-gompi-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-gompi-2021a-CUDA-11.3.1.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TGZ]
 checksums = ['cb5ce4e2e68ed012d9952e96ef880a802058c87a1d840a2093b19bddc7faa165']
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('UCX-CUDA', '1.10.0', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021a-CUDA-11.3.1.eb
index 45ef99c63378..bc0b6fe96314 100755
--- a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021a-CUDA-11.3.1.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['d619740a1c2cc7c02a9763931546b320d0fa4093c415ff3873c2958e121c0609']
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('NCCL', '2.10.3', versionsuffix),
     ('UCX-CUDA', '1.10.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021b-CUDA-11.4.1.eb
index 65c303f62cb6..6122b5221ddb 100755
--- a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2021b-CUDA-11.4.1.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['d619740a1c2cc7c02a9763931546b320d0fa4093c415ff3873c2958e121c0609']
 
 dependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('NCCL', '2.10.3', versionsuffix),
     ('UCX-CUDA', '1.11.2', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2022a-CUDA-11.7.0.eb b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2022a-CUDA-11.7.0.eb
index f081748a1b9c..f1ffbd93b357 100755
--- a/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2022a-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.9-gompi-2022a-CUDA-11.7.0.eb
@@ -15,7 +15,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['d619740a1c2cc7c02a9763931546b320d0fa4093c415ff3873c2958e121c0609']
 
 dependencies = [
-    ('CUDA', '11.7.0', '', True),
+    ('CUDA', '11.7.0', '', SYSTEM),
     ('NCCL', '2.12.12', versionsuffix),
     ('UCX-CUDA', '1.12.1', versionsuffix),
     ('UCC-CUDA', '1.0.0', versionsuffix),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-foss-2018a.eb b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-foss-2018a.eb
index 433b701f9263..bd551db8f611 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-foss-2018a.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-foss-2018a.eb
@@ -40,7 +40,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.2.2'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '17.3.6'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a-mt.eb b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a-mt.eb
index f623cd98f9f2..2f8f0f233524 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a-mt.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a-mt.eb
@@ -37,7 +37,7 @@ dependencies = [
     ('GLPK', '4.61'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.0.6'),
-    ('Java', '1.8.0_131', '', True),
+    ('Java', '1.8.0_131', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '17.0.2'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a.eb b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a.eb
index 913fdc43d8ff..e5240000ae67 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-4.2.1-intel-2017a.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('GLPK', '4.61'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.0.6'),
-    ('Java', '1.8.0_131', '', True),
+    ('Java', '1.8.0_131', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '17.0.2'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-4.2.2-foss-2018a.eb b/easybuild/easyconfigs/o/Octave/Octave-4.2.2-foss-2018a.eb
index 9f2386fc73e1..3765993042ca 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-4.2.2-foss-2018a.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-4.2.2-foss-2018a.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.2.2'),
-    ('Java', '1.8.0_162', '', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '17.3.6'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-4.4.1-foss-2018b.eb b/easybuild/easyconfigs/o/Octave/Octave-4.4.1-foss-2018b.eb
index 843200f95424..5662e74132d9 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-4.4.1-foss-2018b.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-4.4.1-foss-2018b.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.2.5'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '18.1.1'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019a.eb b/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019a.eb
index 287bbf1c983c..38880eb03325 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019a.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019a.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.2.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '19.0.1'),
     ('libGLU', '9.0.0'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019b.eb b/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019b.eb
index b37ef2c4129f..3a702aad19fa 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019b.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-5.1.0-foss-2019b.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.0'),
     ('gnuplot', '5.2.8'),
-    ('Java', '11.0.2', '', True),
+    ('Java', '11.0.2', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '19.1.7'),
     ('libGLU', '9.0.1'),
diff --git a/easybuild/easyconfigs/o/Octave/Octave-6.2.0-foss-2020b.eb b/easybuild/easyconfigs/o/Octave/Octave-6.2.0-foss-2020b.eb
index 3da5bd86b423..03e6837966ec 100644
--- a/easybuild/easyconfigs/o/Octave/Octave-6.2.0-foss-2020b.eb
+++ b/easybuild/easyconfigs/o/Octave/Octave-6.2.0-foss-2020b.eb
@@ -32,7 +32,7 @@ dependencies = [
     ('GLPK', '4.65'),
     ('GL2PS', '1.4.2'),
     ('gnuplot', '5.4.1'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('Mesa', '20.2.1'),
     ('libGLU', '9.0.1'),
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2017b-Python-2.7.14.eb
index 143c4e517cd6..c100a2239ce1 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2017b-Python-2.7.14.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('Python', '2.7.14'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.7'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 runtest = 'test'
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-2.7.15.eb
index 303e55408ceb..1aac64ecdbe1 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-2.7.15.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('Python', '2.7.15'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.8'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 runtest = 'test'
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-3.6.6.eb
index fe1c852d320c..f10768b4b026 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2018b-Python-3.6.6.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('Python', '3.6.6'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.8'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 runtest = 'test'
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2019a-Python-3.7.2.eb
index ad1ddc252ce1..263cec8636f3 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-2.4.1-intel-2019a-Python-3.7.2.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('Python', '3.7.2'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.8'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 runtest = 'test'
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.0.0-gompi-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.0.0-gompi-2019b-Python-3.7.4.eb
index d49bf26cef77..2b022edef2d1 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.0.0-gompi-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.0.0-gompi-2019b-Python-3.7.4.eb
@@ -26,7 +26,7 @@ dependencies = [
     ('Python', '3.7.4'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.9'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('RapidJSON', '1.1.0'),
     ('cairo', '1.16.0'),  # optional: for .png output
     ('Boost', '1.71.0'),  # optional: for Maestro formats
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-gompi-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-gompi-2019b-Python-3.7.4.eb
index 6d9117496146..cf4291bf2ccb 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-gompi-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-gompi-2019b-Python-3.7.4.eb
@@ -37,7 +37,7 @@ dependencies = [
     ('Python', '3.7.4'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.9'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('RapidJSON', '1.1.0'),
     ('cairo', '1.16.0'),  # optional: for .png output
     ('Boost', '1.71.0'),
diff --git a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-iimpi-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-iimpi-2020a-Python-3.8.2.eb
index 7dbebd3a06a4..77d781620020 100644
--- a/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-iimpi-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/o/OpenBabel/OpenBabel-3.1.1-iimpi-2020a-Python-3.8.2.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('Python', '3.8.2'),
     ('zlib', '1.2.11'),
     ('libxml2', '2.9.10'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('RapidJSON', '1.1.0'),
     ('cairo', '1.16.0'),  # optional: for .png output
     ('Boost', '1.72.0'),
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-2.4.12-intel-2016a.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-2.4.12-intel-2016a.eb
index 70e5bf517ccb..258ec7b63f65 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-2.4.12-intel-2016a.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-2.4.12-intel-2016a.eb
@@ -31,8 +31,8 @@ dependencies = [
     ('libpng', '1.6.21'),
     ('LibTIFF', '4.0.6'),
     ('JasPer', '1.900.1'),
-    ('Java', '1.7.0_80', '', True),
-    ('ant', '1.9.6', '-Java-%(javaver)s', True),
+    ('Java', '1.7.0_80', '', SYSTEM),
+    ('ant', '1.9.6', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.48.0'),
     ('GTK+', '2.24.30'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016a.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016a.eb
index 71a179c34f10..f3e4bca88213 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016a.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016a.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.21'),
     ('LibTIFF', '4.0.6'),
     ('JasPer', '1.900.1'),
-    ('Java', '1.8.0_92', '', True),
-    ('ant', '1.9.7', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_92', '', SYSTEM),
+    ('ant', '1.9.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.48.0'),
     ('GTK+', '2.24.30'),
     ('GStreamer', '1.6.4'),
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016b.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016b.eb
index c983e1fdf0b3..c05ad6cd1563 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016b.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-foss-2016b.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.24'),
     ('LibTIFF', '4.0.6'),
     ('JasPer', '1.900.1'),
-    ('Java', '1.8.0_92', '', True),
-    ('ant', '1.9.7', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_92', '', SYSTEM),
+    ('ant', '1.9.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.49.5'),
     ('GTK+', '2.24.31'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016a.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016a.eb
index 1ea167eadfc1..56882999097f 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016a.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016a.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.21'),
     ('LibTIFF', '4.0.6'),
     ('JasPer', '1.900.1'),
-    ('Java', '1.8.0_92', '', True),
-    ('ant', '1.9.7', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_92', '', SYSTEM),
+    ('ant', '1.9.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.48.0'),
     ('GTK+', '2.24.30'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016b.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016b.eb
index 554cb1cb2738..b5a7c1b3002b 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016b.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.1.0-intel-2016b.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.24'),
     ('LibTIFF', '4.0.6'),
     ('JasPer', '1.900.1'),
-    ('Java', '1.8.0_92', '', True),
-    ('ant', '1.9.7', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_92', '', SYSTEM),
+    ('ant', '1.9.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.49.5'),
     ('GTK+', '2.24.31'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-2.7.14.eb
index 204d5064bea9..c6c1d65f2819 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-2.7.14.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.32'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-3.6.3.eb
index 6727d4e58da0..79e2cee0431b 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-foss-2017b-Python-3.6.3.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.32'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-2.7.13.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-2.7.13.eb
index 750d74b04851..74c953d5cba9 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-2.7.13.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-2.7.13.eb
@@ -38,8 +38,8 @@ dependencies = [
     ('libpng', '1.6.29'),
     ('LibTIFF', '4.0.8'),
     ('JasPer', '2.0.12'),
-    ('Java', '1.8.0_144', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_144', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.31'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-3.6.1.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-3.6.1.eb
index 6d11e2ff77dd..789d6aaf6376 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-3.6.1.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017a-Python-3.6.1.eb
@@ -38,8 +38,8 @@ dependencies = [
     ('libpng', '1.6.29'),
     ('LibTIFF', '4.0.8'),
     ('JasPer', '2.0.12'),
-    ('Java', '1.8.0_144', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_144', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.31'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-2.7.14.eb
index 293945598e48..8b301fd1a195 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-2.7.14.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.32'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-3.6.3.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-3.6.3.eb
index 7c0fdad4b14a..40f101d42e3c 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-3.6.3.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.3.0-intel-2017b-Python-3.6.3.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.32'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.53.5'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-2.7.14.eb
index 842fafdf34bc..b5a104f59925 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-2.7.14.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8.0_162', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4-contrib.eb
index 74d3fa4a8c9a..7df03a1aa938 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4-contrib.eb
@@ -42,8 +42,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8.0_162', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4.eb
index a0370ed68401..ecd2995c9664 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-foss-2018a-Python-3.6.4.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8.0_162', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-2.7.14.eb
index e017af4d3666..87b5199daa2b 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-2.7.14.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8.0_162', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-3.6.4.eb
index e9800cb3a37d..91670fc7d499 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.1-intel-2018a-Python-3.6.4.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8.0_162', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_162', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.5-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.5-foss-2018b-Python-2.7.15.eb
index 614a84cbc6b5..9766e39c5142 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.5-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.5-foss-2018b-Python-2.7.15.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.5', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.5', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-2.7.15.eb
index 708d99f1e04b..f9e7d4e506a6 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-2.7.15.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.36'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.60.1'),
     ('GTK+', '3.24.8'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-3.7.2.eb
index c01e9fa39467..5d57f174681b 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-foss-2019a-Python-3.7.2.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.36'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.60.1'),
     ('GTK+', '3.24.8'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-2.7.15.eb
index d32d54e08be8..8acf1dbbfc3f 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-2.7.15.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.36'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.60.1'),
     ('GTK+', '3.24.8'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-3.7.2.eb
index 1e78bb05a9d9..727c24fe4ec9 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-3.4.7-fosscuda-2019a-Python-3.7.2.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libpng', '1.6.36'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.60.1'),
     ('GTK+', '3.24.8'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-2.7.15.eb
index fbd9e8d0fcf3..ae5711df4af8 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-2.7.15.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.5', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.5', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-3.6.6.eb
index 0aa61fe1e65b..23ce3d0dc519 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.0.1-foss-2018b-Python-3.6.6.eb
@@ -36,8 +36,8 @@ dependencies = [
     ('libpng', '1.6.34'),
     ('LibTIFF', '4.0.9'),
     ('JasPer', '2.0.14'),
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.5', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.5', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.54.3'),
     ('GTK+', '2.24.32'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2019b-Python-3.7.4.eb
index 9bc89cf3d0f6..d38ec1d62da8 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2019b-Python-3.7.4.eb
@@ -37,8 +37,8 @@ dependencies = [
     ('libpng', '1.6.37'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.62.0'),
     ('GTK+', '3.24.13'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2-contrib.eb
index 8d9b3948a855..8870feae56a4 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2-contrib.eb
@@ -43,8 +43,8 @@ dependencies = [
     ('libwebp', '1.1.0'),
     ('OpenEXR', '2.4.1'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.8', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.8', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.64.1'),
     ('GTK+', '3.24.17'),
     ('HDF5', '1.10.6'),  # needed by hdf from contrib
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2.eb
index 49b5c8ba29b2..bb85b7a793fa 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-foss-2020a-Python-3.8.2.eb
@@ -39,8 +39,8 @@ dependencies = [
     ('libwebp', '1.1.0'),
     ('OpenEXR', '2.4.1'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.8', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.8', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.64.1'),
     ('GTK+', '3.24.17'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-fosscuda-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-fosscuda-2019b-Python-3.7.4.eb
index 184171377dff..7c1b760a1bce 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-fosscuda-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.2.0-fosscuda-2019b-Python-3.7.4.eb
@@ -43,8 +43,8 @@ dependencies = [
     ('libpng', '1.6.37'),
     ('LibTIFF', '4.0.10'),
     ('JasPer', '2.0.14'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.62.0'),
     ('GTK+', '3.24.13'),
 ]
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-foss-2020b-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-foss-2020b-contrib.eb
index cf24b5ca0397..f866015943dc 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-foss-2020b-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-foss-2020b-contrib.eb
@@ -45,8 +45,8 @@ dependencies = [
     ('libwebp', '1.1.0'),
     ('OpenEXR', '2.5.5'),
     ('JasPer', '2.0.24'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.9', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.9', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.66.1'),
     ('GTK+', '3.24.23'),
     ('HDF5', '1.10.7'),  # needed by hdf from contrib
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-fosscuda-2020b-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-fosscuda-2020b-contrib.eb
index 5fe200231f7a..6bd1dad125bc 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-fosscuda-2020b-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.1-fosscuda-2020b-contrib.eb
@@ -45,8 +45,8 @@ dependencies = [
     ('libwebp', '1.1.0'),
     ('OpenEXR', '2.5.5'),
     ('JasPer', '2.0.24'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.9', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.9', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.66.1'),
     ('GTK+', '3.24.23'),
     ('HDF5', '1.10.7'),  # needed by hdf from contrib
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-CUDA-11.3.1-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-CUDA-11.3.1-contrib.eb
index f9b430274478..9c0af78eb102 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-CUDA-11.3.1-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-CUDA-11.3.1-contrib.eb
@@ -45,13 +45,13 @@ dependencies = [
     ('libwebp', '1.2.0'),
     ('OpenEXR', '3.0.1'),
     ('JasPer', '2.0.28'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.9', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.9', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.68.2'),
     ('GTK3', '3.24.29'),
     ('HDF5', '1.10.7'),  # needed by hdf from contrib
-    ('CUDA', '11.3.1', '', True),
-    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
+    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', SYSTEM),
 ]
 
 # XXXX in configurations is a bug fix in OpenCV because ocv_check_modules is not able to recognize freetype and harfbuzz
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-contrib.eb
index 9dd6c2117404..39fac2609e23 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.3-foss-2021a-contrib.eb
@@ -45,8 +45,8 @@ dependencies = [
     ('libwebp', '1.2.0'),
     ('OpenEXR', '3.0.1'),
     ('JasPer', '2.0.28'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.9', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.9', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.68.2'),
     ('GTK3', '3.24.29'),
     ('HDF5', '1.10.7'),  # needed by hdf from contrib
diff --git a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.5-foss-2021b-contrib.eb b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.5-foss-2021b-contrib.eb
index 5b3d0e27351e..86531a76eb55 100644
--- a/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.5-foss-2021b-contrib.eb
+++ b/easybuild/easyconfigs/o/OpenCV/OpenCV-4.5.5-foss-2021b-contrib.eb
@@ -45,8 +45,8 @@ dependencies = [
     ('libwebp', '1.2.0'),
     ('OpenEXR', '3.1.1'),
     ('JasPer', '2.0.33'),
-    ('Java', '11', '', True),
-    ('ant', '1.10.11', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.11', '-Java-%(javaver)s', SYSTEM),
     ('GLib', '2.69.1'),
     ('GTK3', '3.24.31'),
     ('HDF5', '1.12.1'),  # needed by hdf from contrib
diff --git a/easybuild/easyconfigs/o/OpenFace/OpenFace-2.2.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/OpenFace/OpenFace-2.2.0-foss-2021a-CUDA-11.3.1.eb
index b7b2f6058eb7..10c57638036f 100644
--- a/easybuild/easyconfigs/o/OpenFace/OpenFace-2.2.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/OpenFace/OpenFace-2.2.0-foss-2021a-CUDA-11.3.1.eb
@@ -26,8 +26,8 @@ builddependencies = [
     ('patchelf', '0.12')
 ]
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
-    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
+    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', SYSTEM),
     ('OpenCV', '4.5.3', '-CUDA-%(cudaver)s-contrib'),
     ('dlib', '19.22', '-CUDA-%(cudaver)s'),
     ('SDL2', '2.0.14'),
diff --git a/easybuild/easyconfigs/o/OpenFold/OpenFold-1.0.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/OpenFold/OpenFold-1.0.0-foss-2021a-CUDA-11.3.1.eb
index f4797eae8eb9..1d5296cc0d5c 100644
--- a/easybuild/easyconfigs/o/OpenFold/OpenFold-1.0.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/OpenFold/OpenFold-1.0.0-foss-2021a-CUDA-11.3.1.eb
@@ -16,7 +16,7 @@ builddependencies = [
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SciPy-bundle', '2021.05'),
     ('PyYAML', '5.4.1'),
     ('Biopython', '1.79'),
diff --git a/easybuild/easyconfigs/o/OpenMM/OpenMM-7.7.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/OpenMM/OpenMM-7.7.0-foss-2021a-CUDA-11.3.1.eb
index d52bab5ca43b..61a9e74745fd 100644
--- a/easybuild/easyconfigs/o/OpenMM/OpenMM-7.7.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/OpenMM/OpenMM-7.7.0-foss-2021a-CUDA-11.3.1.eb
@@ -35,7 +35,7 @@ separate_build_dir = True
 dependencies = [
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('SWIG', '4.0.2'),
 ]
 
diff --git a/easybuild/easyconfigs/o/OpenMS/OpenMS-2.4.0-foss-2018b.eb b/easybuild/easyconfigs/o/OpenMS/OpenMS-2.4.0-foss-2018b.eb
index c2c006a21f5d..0be7211a54e0 100644
--- a/easybuild/easyconfigs/o/OpenMS/OpenMS-2.4.0-foss-2018b.eb
+++ b/easybuild/easyconfigs/o/OpenMS/OpenMS-2.4.0-foss-2018b.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('Xerces-C++', '3.2.0'),
     ('LIBSVM', '3.23'),
     ('GLPK', '4.65'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('SQLite', '3.24.0'),
     ('bzip2', '1.0.6'),
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/o/OpenRefine/OpenRefine-2.7-Java-1.8.0_144.eb b/easybuild/easyconfigs/o/OpenRefine/OpenRefine-2.7-Java-1.8.0_144.eb
index ff54cc30a4b5..a5bd30ffa859 100644
--- a/easybuild/easyconfigs/o/OpenRefine/OpenRefine-2.7-Java-1.8.0_144.eb
+++ b/easybuild/easyconfigs/o/OpenRefine/OpenRefine-2.7-Java-1.8.0_144.eb
@@ -15,7 +15,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['16f8c86db061d1c24f1fc64897eb23742e73415a019dd8ea3f39782de833146b']
 
 builddependencies = [
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
 ]
 dependencies = [
     ('Java', '1.8.0_144'),
diff --git a/easybuild/easyconfigs/o/ont-remora/ont-remora-0.1.2-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/ont-remora/ont-remora-0.1.2-foss-2021a-CUDA-11.3.1.eb
index c7f14efe011b..09952eda5e04 100644
--- a/easybuild/easyconfigs/o/ont-remora/ont-remora-0.1.2-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/ont-remora/ont-remora-0.1.2-foss-2021a-CUDA-11.3.1.eb
@@ -13,7 +13,7 @@ and run simple inference."""
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('ONNX-Runtime', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/o/ont-remora/ont-remora-1.0.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/o/ont-remora/ont-remora-1.0.0-foss-2021a-CUDA-11.3.1.eb
index 3336e2eb4a7e..3298c090913d 100644
--- a/easybuild/easyconfigs/o/ont-remora/ont-remora-1.0.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/o/ont-remora/ont-remora-1.0.0-foss-2021a-CUDA-11.3.1.eb
@@ -13,7 +13,7 @@ and run simple inference."""
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),
     ('ONNX-Runtime', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/p/PCL/PCL-1.8.1-intel-2017b-Python-2.7.14.eb b/easybuild/easyconfigs/p/PCL/PCL-1.8.1-intel-2017b-Python-2.7.14.eb
index 47629d26e8ef..710857fb1345 100644
--- a/easybuild/easyconfigs/p/PCL/PCL-1.8.1-intel-2017b-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/p/PCL/PCL-1.8.1-intel-2017b-Python-2.7.14.eb
@@ -22,7 +22,7 @@ checksums = [
 builddependencies = [('CMake', '3.9.5')]
 dependencies = [
     ('Boost', '1.65.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('FLANN', '1.8.4', versionsuffix),
     ('VTK', '8.0.1', versionsuffix),
     ('Qhull', '2015.2'),
diff --git a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-foss-2018b-Python-3.6.6.eb
index 017eaf7df0ba..558337872ed1 100644
--- a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-foss-2018b-Python-3.6.6.eb
@@ -24,7 +24,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 configopts = '-DEIGEN3_ROOT=$EBROOTEIGEN'
diff --git a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-gompi-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-gompi-2019a-Python-3.7.2.eb
index 1483418bd8d0..fc5b5e2cff7f 100644
--- a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-gompi-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-gompi-2019a-Python-3.7.2.eb
@@ -24,7 +24,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.13.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 configopts = '-DEIGEN3_ROOT=$EBROOTEIGEN'
diff --git a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-iimpi-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-iimpi-2019b-Python-3.7.4.eb
index 4862bbfa6aaa..ee6f7d3f34ed 100644
--- a/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-iimpi-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/p/PCMSolver/PCMSolver-1.2.3-iimpi-2019b-Python-3.7.4.eb
@@ -18,7 +18,7 @@ checksums = ['d1ef6bdc268a2e719b36c85125c3543df7a26e1a738daf4483f4ded0c76f5b60']
 
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/p/PIPITS/PIPITS-2.7-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/p/PIPITS/PIPITS-2.7-foss-2020a-Python-3.8.2.eb
index 2167bd9bd686..a62393975f0f 100644
--- a/easybuild/easyconfigs/p/PIPITS/PIPITS-2.7-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/p/PIPITS/PIPITS-2.7-foss-2020a-Python-3.8.2.eb
@@ -18,8 +18,8 @@ dependencies = [
     ('FASTX-Toolkit', '0.0.14'),
     ('ITSx', '1.1.2'),
     ('HMMER', '3.3.1'),
-    ('RDP-Classifier', '2.13', '-Java-11', True),
-    ('SeqKit', '0.13.2', '', True),
+    ('RDP-Classifier', '2.13', '-Java-11', SYSTEM),
+    ('SeqKit', '0.13.2', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/p/PIPITS/PIPITS-2.8-foss-2021a.eb b/easybuild/easyconfigs/p/PIPITS/PIPITS-2.8-foss-2021a.eb
index 0d9fdbabdc74..e4b4218920f8 100644
--- a/easybuild/easyconfigs/p/PIPITS/PIPITS-2.8-foss-2021a.eb
+++ b/easybuild/easyconfigs/p/PIPITS/PIPITS-2.8-foss-2021a.eb
@@ -17,8 +17,8 @@ dependencies = [
     ('FASTX-Toolkit', '0.0.14'),
     ('ITSx', '1.1.3'),
     ('HMMER', '3.3.2'),
-    ('RDP-Classifier', '2.13', '-Java-11', True),
-    ('SeqKit', '2.1.0', '', True),
+    ('RDP-Classifier', '2.13', '-Java-11', SYSTEM),
+    ('SeqKit', '2.1.0', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/p/PRSice/PRSice-2.2.12-GCCcore-8.3.0.eb b/easybuild/easyconfigs/p/PRSice/PRSice-2.2.12-GCCcore-8.3.0.eb
index 4408537b08ee..2e22ee69d17c 100644
--- a/easybuild/easyconfigs/p/PRSice/PRSice-2.2.12-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/p/PRSice/PRSice-2.2.12-GCCcore-8.3.0.eb
@@ -21,7 +21,7 @@ checksums = ['1e3d43f269ad6c4c703431e3a96084e7c85391e00061684d60a8599d4e158c84']
 builddependencies = [
     ('CMake', '3.15.3'),
     ('binutils', '2.32'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 files_to_copy = [(['bin/PRSice'], 'bin'), "README.md", "LICENSE"]
diff --git a/easybuild/easyconfigs/p/PRSice/PRSice-2.3.1-GCCcore-9.3.0.eb b/easybuild/easyconfigs/p/PRSice/PRSice-2.3.1-GCCcore-9.3.0.eb
index 0d0301343017..1a07392a87c8 100644
--- a/easybuild/easyconfigs/p/PRSice/PRSice-2.3.1-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/p/PRSice/PRSice-2.3.1-GCCcore-9.3.0.eb
@@ -21,7 +21,7 @@ checksums = ['b4adec078d7101d00390e529c9cb6d935c50d60ae17db6fa044295767d3131a4']
 builddependencies = [
     ('CMake', '3.16.4'),
     ('binutils', '2.34'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 
 files_to_copy = [(['bin/PRSice'], 'bin'), "README.md", "LICENSE"]
diff --git a/easybuild/easyconfigs/p/PTESFinder/PTESFinder-1-intel-2017b.eb b/easybuild/easyconfigs/p/PTESFinder/PTESFinder-1-intel-2017b.eb
index c495729322c0..1885396ad810 100644
--- a/easybuild/easyconfigs/p/PTESFinder/PTESFinder-1-intel-2017b.eb
+++ b/easybuild/easyconfigs/p/PTESFinder/PTESFinder-1-intel-2017b.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Bowtie', '1.2.1.1'),
     ('Bowtie2', '2.3.3.1'),
     ('BEDTools', '2.26.0'),
-    ('Java', '1.8.0_152', '', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/p/Perl/Perl-5.32.1-FCC-4.5.0.eb b/easybuild/easyconfigs/p/Perl/Perl-5.32.1-FCC-4.5.0.eb
index 903ad1a1e1cb..6b718496c02e 100644
--- a/easybuild/easyconfigs/p/Perl/Perl-5.32.1-FCC-4.5.0.eb
+++ b/easybuild/easyconfigs/p/Perl/Perl-5.32.1-FCC-4.5.0.eb
@@ -25,7 +25,7 @@ dependencies = [
     ('ncurses', '6.2'),  # for Term::ReadLine::Gnu
     ('libreadline', '8.1'),  # for Term::ReadLine::Gnu
     ('DB', '18.1.40'),  # for DB_File
-    ('OpenSSL', '1.1', '', True),  # required for Net::SSLeay
+    ('OpenSSL', '1.1', '', SYSTEM),  # required for Net::SSLeay
 ]
 
 exts_default_options = {'buildopts': 'CC="$CC"'}
diff --git a/easybuild/easyconfigs/p/Perl/Perl-5.32.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/Perl/Perl-5.32.1-GCCcore-10.3.0.eb
index 947436d02656..c06f75ac1bdc 100644
--- a/easybuild/easyconfigs/p/Perl/Perl-5.32.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/Perl/Perl-5.32.1-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ dependencies = [
     ('ncurses', '6.2'),  # for Term::ReadLine::Gnu
     ('libreadline', '8.1'),  # for Term::ReadLine::Gnu
     ('DB', '18.1.40'),  # for DB_File
-    ('OpenSSL', '1.1', '', True),  # required for Net::SSLeay
+    ('OpenSSL', '1.1', '', SYSTEM),  # required for Net::SSLeay
 ]
 
 # !! order of extensions is important !!
diff --git a/easybuild/easyconfigs/p/Perl/Perl-5.34.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Perl/Perl-5.34.0-GCCcore-11.2.0.eb
index 63d38816c14d..596de0bad6ba 100644
--- a/easybuild/easyconfigs/p/Perl/Perl-5.34.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Perl/Perl-5.34.0-GCCcore-11.2.0.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('ncurses', '6.2'),  # for Term::ReadLine::Gnu
     ('libreadline', '8.1'),  # for Term::ReadLine::Gnu
     ('DB', '18.1.40'),  # for DB_File
-    ('OpenSSL', '1.1', '', True),  # required for Net::SSLeay
+    ('OpenSSL', '1.1', '', SYSTEM),  # required for Net::SSLeay
 ]
 
 # !! order of extensions is important !!
diff --git a/easybuild/easyconfigs/p/Perl/Perl-5.34.1-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Perl/Perl-5.34.1-GCCcore-11.3.0.eb
index 7354490d5e4b..b998f1d93d04 100644
--- a/easybuild/easyconfigs/p/Perl/Perl-5.34.1-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Perl/Perl-5.34.1-GCCcore-11.3.0.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('ncurses', '6.3'),  # for Term::ReadLine::Gnu
     ('libreadline', '8.1.2'),  # for Term::ReadLine::Gnu
     ('DB', '18.1.40'),  # for DB_File
-    ('OpenSSL', '1.1', '', True),  # required for Net::SSLeay
+    ('OpenSSL', '1.1', '', SYSTEM),  # required for Net::SSLeay
 ]
 
 # !! order of extensions is important !!
diff --git a/easybuild/easyconfigs/p/Perl/Perl-5.36.0-GCCcore-12.1.0.eb b/easybuild/easyconfigs/p/Perl/Perl-5.36.0-GCCcore-12.1.0.eb
index 2a1efcc2d51d..1424b9a1a56e 100644
--- a/easybuild/easyconfigs/p/Perl/Perl-5.36.0-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/p/Perl/Perl-5.36.0-GCCcore-12.1.0.eb
@@ -22,7 +22,7 @@ dependencies = [
     ('ncurses', '6.3'),  # for Term::ReadLine::Gnu
     ('libreadline', '8.1.2'),  # for Term::ReadLine::Gnu
     ('DB', '18.1.40'),  # for DB_File
-    ('OpenSSL', '1.1', '', True),  # required for Net::SSLeay
+    ('OpenSSL', '1.1', '', SYSTEM),  # required for Net::SSLeay
 ]
 
 # !! order of extensions is important !!
diff --git a/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0-foss-2020a-Python-3.8.2.eb
index 98b660aba062..4b0003f906b7 100644
--- a/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0-foss-2020a-Python-3.8.2.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('SEPP', '4.3.10', versionsuffix),
     ('trimAl', '1.4.1'),
     ('BLAST+', '2.10.1'),
-    ('USEARCH', '11.0.667-i86linux32', '', True),
+    ('USEARCH', '11.0.667-i86linux32', '', SYSTEM),
     ('DIAMOND', '2.0.4'),
 ]
 
diff --git a/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0.2-foss-2021a.eb b/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0.2-foss-2021a.eb
index 0e70c4e11dea..7d564d27db01 100644
--- a/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0.2-foss-2021a.eb
+++ b/easybuild/easyconfigs/p/PhyloPhlAn/PhyloPhlAn-3.0.2-foss-2021a.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('SEPP', '4.5.0'),
     ('trimAl', '1.4.1'),
     ('BLAST+', '2.11.0'),
-    ('USEARCH', '11.0.667-i86linux32', '', True),
+    ('USEARCH', '11.0.667-i86linux32', '', SYSTEM),
     ('DIAMOND', '2.0.11'),
 ]
 
diff --git a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.3-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.3-GCCcore-10.3.0.eb
index bbe63ecc5222..eb61569278cf 100644
--- a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.3-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.3-GCCcore-10.3.0.eb
@@ -30,7 +30,7 @@ builddependencies = [
 dependencies = [
     ('libreadline', '8.1'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-python --with-openssl'
diff --git a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.4-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.4-GCCcore-11.2.0.eb
index 8c788d103e78..5cf9564e87ff 100644
--- a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.4-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-13.4-GCCcore-11.2.0.eb
@@ -30,7 +30,7 @@ builddependencies = [
 dependencies = [
     ('libreadline', '8.1'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-python --with-openssl'
diff --git a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-14.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-14.4-GCCcore-11.3.0.eb
index f3972f8c07ff..ae344d6e8569 100644
--- a/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-14.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/PostgreSQL/PostgreSQL-14.4-GCCcore-11.3.0.eb
@@ -30,7 +30,7 @@ builddependencies = [
 dependencies = [
     ('libreadline', '8.1.2'),
     ('zlib', '1.2.12'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = '--with-python --with-openssl'
diff --git a/easybuild/easyconfigs/p/PyCUDA/PyCUDA-2017.1.1-foss-2017b-CUDA-9.0.176-Python-2.7.14.eb b/easybuild/easyconfigs/p/PyCUDA/PyCUDA-2017.1.1-foss-2017b-CUDA-9.0.176-Python-2.7.14.eb
index 4d6b28f646a5..fcdf4189ca2a 100644
--- a/easybuild/easyconfigs/p/PyCUDA/PyCUDA-2017.1.1-foss-2017b-CUDA-9.0.176-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/p/PyCUDA/PyCUDA-2017.1.1-foss-2017b-CUDA-9.0.176-Python-2.7.14.eb
@@ -11,7 +11,7 @@ toolchain = {'name': 'foss', 'version': '2017b'}
 
 dependencies = [
     ('Python', '2.7.14'),
-    ('CUDA', '9.0.176', '', True),
+    ('CUDA', '9.0.176', '', SYSTEM),
     ('Boost.Python', '1.65.1', '-Python-%(pyver)s'),
     ('Mako', '1.0.7', '-Python-%(pyver)s'),
     ('pytest', '3.8.2', '-Python-%(pyver)s'),
diff --git a/easybuild/easyconfigs/p/PyTorch-Lightning/PyTorch-Lightning-1.5.9-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/p/PyTorch-Lightning/PyTorch-Lightning-1.5.9-foss-2021a-CUDA-11.3.1.eb
index e8d997ccd68f..cf88ff010b22 100644
--- a/easybuild/easyconfigs/p/PyTorch-Lightning/PyTorch-Lightning-1.5.9-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/p/PyTorch-Lightning/PyTorch-Lightning-1.5.9-foss-2021a-CUDA-11.3.1.eb
@@ -10,7 +10,7 @@ description = "PyTorch Lightning is the lightweight PyTorch wrapper for ML resea
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('PyTorch', '1.10.0', versionsuffix),
     ('tqdm', '4.61.2'),
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-foss-2021a-CUDA-11.3.1.eb
index cecec914c702..3dedead0354d 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-foss-2021a-CUDA-11.3.1.eb
@@ -73,7 +73,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Ninja', '1.10.2'),  # Required for JIT compilation of C++ extensions
     ('Python', '3.9.5'),
     ('protobuf', '3.17.3'),
@@ -87,7 +87,7 @@ dependencies = [
     ('numactl', '2.0.14'),
     ('FFmpeg', '4.3.2'),
     ('Pillow', '8.2.0'),
-    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.6.1', '-CUDA-%(cudaver)s'),
     ('NCCL', '2.10.3', '-CUDA-%(cudaver)s'),
     ('expecttest', '0.1.3'),
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-fosscuda-2020b.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-fosscuda-2020b.eb
index a7ff2a282f48..938b94c4f938 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.10.0-fosscuda-2020b.eb
@@ -86,7 +86,7 @@ dependencies = [
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
     ('expecttest', '0.1.3'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.11.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.11.0-foss-2021a-CUDA-11.3.1.eb
index 5aba12b39575..37b6a8f47f0e 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.11.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.11.0-foss-2021a-CUDA-11.3.1.eb
@@ -63,7 +63,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Ninja', '1.10.2'),  # Required for JIT compilation of C++ extensions
     ('Python', '3.9.5'),
     ('protobuf', '3.17.3'),
@@ -77,7 +77,7 @@ dependencies = [
     ('numactl', '2.0.14'),
     ('FFmpeg', '4.3.2'),
     ('Pillow', '8.2.0'),
-    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.2.1.32', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.6.1', '-CUDA-%(cudaver)s'),
     ('NCCL', '2.10.3', '-CUDA-%(cudaver)s'),
     ('expecttest', '0.1.3'),
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.3.1-fosscuda-2020b.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.3.1-fosscuda-2020b.eb
index 20dd004271e7..1e64c9e1b948 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.3.1-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.3.1-fosscuda-2020b.eb
@@ -277,7 +277,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020a-Python-3.8.2.eb
index 5483fb704343..64428626873f 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020a-Python-3.8.2.eb
@@ -320,7 +320,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.2.2'),
     ('Pillow', '7.0.0', versionsuffix),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020b.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020b.eb
index 5b00155d13bf..63ff087989be 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.7.1-fosscuda-2020b.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.8.1-fosscuda-2020b.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.8.1-fosscuda-2020b.eb
index a32c54ea29e4..90e96f96e042 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.8.1-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.8.1-fosscuda-2020b.eb
@@ -97,7 +97,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b-imkl.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b-imkl.eb
index 12f72390950d..32f09e64e754 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b-imkl.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b-imkl.eb
@@ -102,7 +102,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
     ('imkl', '2020.4.304'),
diff --git a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b.eb b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b.eb
index 0982b4f230db..a1aad90e3f1e 100644
--- a/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/p/PyTorch/PyTorch-1.9.0-fosscuda-2020b.eb
@@ -101,7 +101,7 @@ dependencies = [
     ('numactl', '2.0.13'),
     ('FFmpeg', '4.3.1'),
     ('Pillow', '8.0.1'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('magma', '2.5.4'),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-10.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-10.3.0-bare.eb
index 6f6385c7887d..5ce78d117e87 100644
--- a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-10.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-10.3.0-bare.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('libreadline', '8.1'),
     ('ncurses', '6.2'),
     ('SQLite', '3.35.4'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0-bare.eb
index 1975150da07f..32a0a66ea279 100644
--- a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0-bare.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('libreadline', '8.1'),
     ('ncurses', '6.2'),
     ('SQLite', '3.36'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0.eb
index c9a13925842e..40d1364f4e58 100644
--- a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.2.0.eb
@@ -25,7 +25,7 @@ dependencies = [
     ('SQLite', '3.36'),
     ('GMP', '6.2.1'),  # required for pycrypto
     ('libffi', '3.4.2'),  # required for cryptography
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.3.0-bare.eb
index 30621d2d5a4a..f2ad29b3f794 100644
--- a/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-2.7.18-GCCcore-11.3.0-bare.eb
@@ -24,7 +24,7 @@ dependencies = [
     ('libreadline', '8.1.2'),
     ('ncurses', '6.3'),
     ('SQLite', '3.38.3'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
index c1e834e461b1..2209fb0498b6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('SQLite', '3.38.3'),
     ('XZ', '5.2.5'),
     ('libffi', '3.4.2'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
index 0d94ec7e6860..1cfac838d2c6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('XZ', '5.2.5'),
     ('GMP', '6.2.1'),  # required for pycrypto
     ('libffi', '3.4.2'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
index d4ac365a6cbd..451ff497b6e6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('SQLite', '3.35.4'),
     ('XZ', '5.2.5'),
     ('libffi', '3.3'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
index 577405f03b62..f225ea27ce81 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('XZ', '5.2.5'),
     ('GMP', '6.2.1'),  # required for pycrypto
     ('libffi', '3.3'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
index 6ce8d0e64b29..44e990e31479 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('SQLite', '3.36'),
     ('XZ', '5.2.5'),
     ('libffi', '3.4.2'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
index d729015147b7..707d986560ab 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('XZ', '5.2.5'),
     ('GMP', '6.2.1'),  # required for pycrypto
     ('libffi', '3.4.2'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 install_pip = True
diff --git a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.11-foss-2020b.eb b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.11-foss-2020b.eb
index a782c5e9a6a8..b84ba84bea46 100644
--- a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.11-foss-2020b.eb
+++ b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.11-foss-2020b.eb
@@ -16,7 +16,7 @@ toolchain = {'name': 'foss', 'version': '2020b'}
 
 dependencies = [
     ('Biopython', '1.78'),
-    ('gofasta', '0.0.5', '', True),
+    ('gofasta', '0.0.5', '', SYSTEM),
     ('minimap2', '2.18'),
     ('Pysam', '0.16.0.1'),
     ('Python', '3.8.6'),
diff --git a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-10-18.eb b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-10-18.eb
index 6d54365d3d7c..9ed7733f533d 100644
--- a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-10-18.eb
+++ b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-10-18.eb
@@ -19,7 +19,7 @@ toolchain = {'name': 'foss', 'version': '2021b'}
 
 dependencies = [
     ('Biopython', '1.79'),
-    ('gofasta', '0.0.5', '', True),
+    ('gofasta', '0.0.5', '', SYSTEM),
     ('minimap2', '2.22'),
     ('Pysam', '0.17.0'),
     ('Python', '3.9.6'),
diff --git a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-11-25.eb b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-11-25.eb
index ebc0440bf2bc..7057ca7d244a 100644
--- a/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-11-25.eb
+++ b/easybuild/easyconfigs/p/pangolin/pangolin-3.1.16-foss-2021b-pangoLEARN-2021-11-25.eb
@@ -19,7 +19,7 @@ toolchain = {'name': 'foss', 'version': '2021b'}
 
 dependencies = [
     ('Biopython', '1.79'),
-    ('gofasta', '0.0.5', '', True),
+    ('gofasta', '0.0.5', '', SYSTEM),
     ('minimap2', '2.22'),
     ('Pysam', '0.17.0'),
     ('Python', '3.9.6'),
diff --git a/easybuild/easyconfigs/p/parallel-fastq-dump/parallel-fastq-dump-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb b/easybuild/easyconfigs/p/parallel-fastq-dump/parallel-fastq-dump-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
index 234ce1ed45d5..b401fc906551 100644
--- a/easybuild/easyconfigs/p/parallel-fastq-dump/parallel-fastq-dump-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/p/parallel-fastq-dump/parallel-fastq-dump-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
@@ -23,7 +23,7 @@ builddependencies = [('binutils', '2.34')]
 
 dependencies = [
     ('Python', '3.8.2'),
-    ('SRA-Toolkit', '2.9.6-1', '-centos_linux64', True)
+    ('SRA-Toolkit', '2.9.6-1', '-centos_linux64', SYSTEM)
 ]
 
 download_dep_fail = True
diff --git a/easybuild/easyconfigs/p/picard/picard-2.18.14-Java-1.8.eb b/easybuild/easyconfigs/p/picard/picard-2.18.14-Java-1.8.eb
index ad1bce59ad9c..585611929695 100644
--- a/easybuild/easyconfigs/p/picard/picard-2.18.14-Java-1.8.eb
+++ b/easybuild/easyconfigs/p/picard/picard-2.18.14-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['4941719941a46c72e72a3b160ff8b8fc7e2af90198004bd727526ce522ae8575']
 
 postinstallcmds = ["mv %(installdir)s/%(name)s-%(version)s.jar %(installdir)s/%(name)s.jar"]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['picard.jar'],
diff --git a/easybuild/easyconfigs/p/picard/picard-2.18.17-Java-1.8.eb b/easybuild/easyconfigs/p/picard/picard-2.18.17-Java-1.8.eb
index 570181a5407f..88b4346cba45 100644
--- a/easybuild/easyconfigs/p/picard/picard-2.18.17-Java-1.8.eb
+++ b/easybuild/easyconfigs/p/picard/picard-2.18.17-Java-1.8.eb
@@ -36,7 +36,7 @@ checksums = ['f51f64824072f26dc5d0932376929b20e6f66ff478810bcf8145792773f5474f']
 
 postinstallcmds = ["mv %(installdir)s/%(name)s-%(version)s.jar %(installdir)s/%(name)s.jar"]
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['picard.jar'],
diff --git a/easybuild/easyconfigs/p/pkg-config/pkg-config-0.29.1-GCCcore-5.4.0.eb b/easybuild/easyconfigs/p/pkg-config/pkg-config-0.29.1-GCCcore-5.4.0.eb
index 0320934f75e1..a5ae68a1194e 100644
--- a/easybuild/easyconfigs/p/pkg-config/pkg-config-0.29.1-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/p/pkg-config/pkg-config-0.29.1-GCCcore-5.4.0.eb
@@ -17,7 +17,7 @@ checksums = ['beb43c9e064555469bd4390dcfd8030b1536e0aa103f08d7abf7ae8cac0cb001']
 
 builddependencies = [
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 # don't use PAX, it might break.
diff --git a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019a.eb b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019a.eb
index 97e2f412b2ce..275ef39e9b89 100644
--- a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019a.eb
+++ b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019a.eb
@@ -22,9 +22,9 @@ checksums = ['0c13dd5621c352633565f5831c4e85ce2e1e400c2f17ba50800282ae121803ff']
 dependencies = [
     ('BioPerl', '1.7.2', '-Perl-5.28.1'),
     ('BLAST+', '2.9.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('parallel', '20190622'),
-    ('tbl2asn', '20220427', '-linux64', True),
+    ('tbl2asn', '20220427', '-linux64', SYSTEM),
 ]
 
 local_bin_files = ['prokka', 'prokka-cdd_to_hmm', 'prokka-genpept_to_fasta_db', 'prokka-tigrfams_to_hmm',
diff --git a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019b.eb b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019b.eb
index b0cb7c510775..fba179ce972f 100644
--- a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019b.eb
+++ b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2019b.eb
@@ -22,9 +22,9 @@ checksums = ['0c13dd5621c352633565f5831c4e85ce2e1e400c2f17ba50800282ae121803ff']
 dependencies = [
     ('BioPerl', '1.7.2'),
     ('BLAST+', '2.9.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('parallel', '20190922'),
-    ('tbl2asn', '20220427', '-linux64', True),
+    ('tbl2asn', '20220427', '-linux64', SYSTEM),
 ]
 
 local_bin_files = ['prokka', 'prokka-cdd_to_hmm', 'prokka-genpept_to_fasta_db', 'prokka-tigrfams_to_hmm',
diff --git a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2020b.eb b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2020b.eb
index 8f30af1ba54e..d5adf00b3842 100644
--- a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2020b.eb
+++ b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2020b.eb
@@ -22,10 +22,10 @@ checksums = ['0c13dd5621c352633565f5831c4e85ce2e1e400c2f17ba50800282ae121803ff']
 dependencies = [
     ('BioPerl', '1.7.8'),
     ('BLAST+', '2.11.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bio-SearchIO-hmmer', '1.7.3'),
     ('parallel', '20210322'),
-    ('tbl2asn', '20220427', '-linux64', True),
+    ('tbl2asn', '20220427', '-linux64', SYSTEM),
 ]
 
 local_bin_files = ['prokka', 'prokka-cdd_to_hmm', 'prokka-genpept_to_fasta_db', 'prokka-tigrfams_to_hmm',
diff --git a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2021a.eb b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2021a.eb
index ebd872de3550..39eb4f8fef46 100644
--- a/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2021a.eb
+++ b/easybuild/easyconfigs/p/prokka/prokka-1.14.5-gompi-2021a.eb
@@ -22,10 +22,10 @@ checksums = ['0c13dd5621c352633565f5831c4e85ce2e1e400c2f17ba50800282ae121803ff']
 dependencies = [
     ('BioPerl', '1.7.8'),
     ('BLAST+', '2.11.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bio-SearchIO-hmmer', '1.7.3'),
     ('parallel', '20210622'),
-    ('tbl2asn', '20220427', '-linux64', True),
+    ('tbl2asn', '20220427', '-linux64', SYSTEM),
 ]
 
 local_bin_files = ['prokka', 'prokka-cdd_to_hmm', 'prokka-genpept_to_fasta_db', 'prokka-tigrfams_to_hmm',
diff --git a/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-foss-2018a-Python-3.6.4.eb b/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-foss-2018a-Python-3.6.4.eb
index 6bd38d27263d..24a72d64d3a3 100644
--- a/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-foss-2018a-Python-3.6.4.eb
+++ b/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-foss-2018a-Python-3.6.4.eb
@@ -16,7 +16,7 @@ checksums = ['b69e83658513215b8d1443544d0549b7d231b9f201f6fc787a2b2218b408181e']
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('pytest', '3.8.0', versionsuffix),
 ]
 dependencies = [('Python', '3.6.4')]
diff --git a/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-intel-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-intel-2018b-Python-3.6.6.eb
index 65b955a13b7e..968a6a89f01b 100644
--- a/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-intel-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/p/pybind11/pybind11-2.2.4-intel-2018b-Python-3.6.6.eb
@@ -16,7 +16,7 @@ checksums = ['b69e83658513215b8d1443544d0549b7d231b9f201f6fc787a2b2218b408181e']
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
     ('pytest', '3.8.2', versionsuffix),
 ]
 dependencies = [('Python', '3.6.6')]
diff --git a/easybuild/easyconfigs/p/pybind11/pybind11-2.4.3-GCCcore-8.3.0-Python-3.7.4.eb b/easybuild/easyconfigs/p/pybind11/pybind11-2.4.3-GCCcore-8.3.0-Python-3.7.4.eb
index 37a8909ca538..fbdf9a419671 100644
--- a/easybuild/easyconfigs/p/pybind11/pybind11-2.4.3-GCCcore-8.3.0-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/p/pybind11/pybind11-2.4.3-GCCcore-8.3.0-Python-3.7.4.eb
@@ -19,7 +19,7 @@ checksums = [
 builddependencies = [
     ('binutils', '2.32'),
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
 ]
 dependencies = [('Python', '3.7.4')]
 
diff --git a/easybuild/easyconfigs/p/python-weka-wrapper3/python-weka-wrapper3-0.1.11-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/p/python-weka-wrapper3/python-weka-wrapper3-0.1.11-foss-2019b-Python-3.7.4.eb
index b3f71b6a46bd..eafbd05b0962 100644
--- a/easybuild/easyconfigs/p/python-weka-wrapper3/python-weka-wrapper3-0.1.11-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/p/python-weka-wrapper3/python-weka-wrapper3-0.1.11-foss-2019b-Python-3.7.4.eb
@@ -13,7 +13,7 @@ dependencies = [
     ('Python', '3.7.4'),
     ('matplotlib', '3.1.1', versionsuffix),
     ('Pillow', '6.2.1'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2019a-Python-3.7.2.eb
index 01960475b5e2..9e7475ccdd83 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2019a-Python-3.7.2.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('Python', '3.7.2'),
     ('Perl', '5.28.1'),
     ('matplotlib', '3.0.3', versionsuffix),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.70.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020a-Python-3.8.2.eb
index 87ae71af604d..e0f1cd1e1ce3 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020a-Python-3.8.2.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('Python', '3.8.2'),
     ('Perl', '5.30.2'),
     ('matplotlib', '3.2.1', versionsuffix),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.72.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b-Python-2.7.18.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b-Python-2.7.18.eb
index 58f9709a6560..81762184ba74 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b-Python-2.7.18.eb
@@ -20,7 +20,7 @@ dependencies = [
     ('Python', '2.7.18'),
     ('Perl', '5.32.0'),
     ('matplotlib', '2.2.5', versionsuffix),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.74.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b.eb
index 53e95a0065df..d0057cb1ac62 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2020b.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Python', '3.8.6'),
     ('Perl', '5.32.0'),
     ('matplotlib', '3.3.3'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.74.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021a.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021a.eb
index 2fa06228d15d..435b062ca1ee 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021a.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021a.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Python', '3.9.5'),
     ('Perl', '5.32.1'),
     ('matplotlib', '3.4.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.76.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021b.eb b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021b.eb
index eedf3ea7c278..6a2efd7b1205 100644
--- a/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021b.eb
+++ b/easybuild/easyconfigs/q/QUAST/QUAST-5.0.2-foss-2021b.eb
@@ -16,7 +16,7 @@ dependencies = [
     ('Python', '3.9.6'),
     ('Perl', '5.34.0'),
     ('matplotlib', '3.4.3'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Boost', '1.77.0'),
 ]
 
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-10.3.0.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-10.3.0.eb
index 0d7bdcbe989b..ec6b5ac968f4 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-10.3.0.eb
@@ -56,7 +56,7 @@ dependencies = [
     ('snappy', '1.1.8'),
     ('JasPer', '2.0.28'),
     ('bzip2', '1.0.8'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 # qtgamepad needs recent kernel/libevdev (fails on RHEL 6.x)
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-11.2.0.eb
index 16cca743fc82..ab34684b1369 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.2-GCCcore-11.2.0.eb
@@ -61,7 +61,7 @@ dependencies = [
     ('snappy', '1.1.9'),
     ('JasPer', '2.0.33'),
     ('bzip2', '1.0.8'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('ICU', '69.1'),
 ]
 
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.5-GCCcore-11.3.0.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.5-GCCcore-11.3.0.eb
index c12b05d90b10..a9d014e9d756 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.15.5-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.15.5-GCCcore-11.3.0.eb
@@ -61,7 +61,7 @@ dependencies = [
     ('snappy', '1.1.9'),
     ('JasPer', '2.0.33'),
     ('bzip2', '1.0.8'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('ICU', '71.1'),
     ('nodejs', '16.15.1'),
 ]
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-foss-2016a.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-foss-2016a.eb
index ea7a0361a22e..5138261fdecd 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-foss-2016a.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-foss-2016a.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('kbproto', '1.0.7'),
     ('libpthread-stubs', '0.3'),
     ('pkg-config', '0.29.1'),
-    ('xcb-proto', '1.11', '', True),
+    ('xcb-proto', '1.11', '', SYSTEM),
     ('xextproto', '7.3.0'),
     ('xorg-macros', '1.19.0'),
     ('xproto', '7.0.28'),
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-intel-2016a.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-intel-2016a.eb
index cb2811a839e5..cf7f35e5fee9 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-intel-2016a.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.6.0-intel-2016a.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('kbproto', '1.0.7'),
     ('libpthread-stubs', '0.3'),
     ('pkg-config', '0.29.1'),
-    ('xcb-proto', '1.11', '', True),
+    ('xcb-proto', '1.11', '', SYSTEM),
     ('xextproto', '7.3.0'),
     ('xorg-macros', '1.19.0'),
     ('xproto', '7.0.28'),
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-foss-2016a.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-foss-2016a.eb
index 316cae4a7e09..4309fafb895a 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-foss-2016a.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-foss-2016a.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('kbproto', '1.0.7'),
     ('libpthread-stubs', '0.3'),
     ('pkg-config', '0.29.1'),
-    ('xcb-proto', '1.11', '', True),
+    ('xcb-proto', '1.11', '', SYSTEM),
     ('xextproto', '7.3.0'),
     ('xorg-macros', '1.19.0'),
     ('xproto', '7.0.28'),
diff --git a/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-intel-2016a.eb b/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-intel-2016a.eb
index 6ddda44037e7..db20d4633cd8 100644
--- a/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-intel-2016a.eb
+++ b/easybuild/easyconfigs/q/Qt5/Qt5-5.7.0-intel-2016a.eb
@@ -23,7 +23,7 @@ builddependencies = [
     ('kbproto', '1.0.7'),
     ('libpthread-stubs', '0.3'),
     ('pkg-config', '0.29.1'),
-    ('xcb-proto', '1.11', '', True),
+    ('xcb-proto', '1.11', '', SYSTEM),
     ('xextproto', '7.3.0'),
     ('xorg-macros', '1.19.0'),
     ('xproto', '7.0.28'),
diff --git a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2019a-R-3.6.0.eb b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2019a-R-3.6.0.eb
index 90bf997ca5c8..35374dd4af23 100644
--- a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2019a-R-3.6.0.eb
+++ b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2019a-R-3.6.0.eb
@@ -16,7 +16,7 @@ sources = ['qualimap_v%(version)s.zip']
 checksums = ['08f1d66e49c83c76c56c4225c53aee44f41e0592c8bdc84b8c4ecd975700e045']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('R', '3.6.0'),
     ('R-bundle-Bioconductor', '3.9', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2020b-R-4.0.3.eb b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2020b-R-4.0.3.eb
index 4b25f9686c69..70260a39f736 100644
--- a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2020b-R-4.0.3.eb
+++ b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2020b-R-4.0.3.eb
@@ -16,7 +16,7 @@ sources = ['qualimap_v%(version)s.zip']
 checksums = ['08f1d66e49c83c76c56c4225c53aee44f41e0592c8bdc84b8c4ecd975700e045']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('R', '4.0.3'),
     ('R-bundle-Bioconductor', '3.12', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2021b-R-4.1.2.eb b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2021b-R-4.1.2.eb
index fdbfeb2bd21a..ee634ca5d69b 100644
--- a/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2021b-R-4.1.2.eb
+++ b/easybuild/easyconfigs/q/Qualimap/Qualimap-2.2.1-foss-2021b-R-4.1.2.eb
@@ -16,7 +16,7 @@ sources = ['qualimap_v%(version)s.zip']
 checksums = ['08f1d66e49c83c76c56c4225c53aee44f41e0592c8bdc84b8c4ecd975700e045']
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('R', '4.1.2'),
     ('R-bundle-Bioconductor', '3.14', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/r/R/R-3.3.3-intel-2016b-X11-20160819.eb b/easybuild/easyconfigs/r/R/R-3.3.3-intel-2016b-X11-20160819.eb
index c9d9b92cc472..c29dcf3fa057 100644
--- a/easybuild/easyconfigs/r/R/R-3.3.3-intel-2016b-X11-20160819.eb
+++ b/easybuild/easyconfigs/r/R/R-3.3.3-intel-2016b-X11-20160819.eb
@@ -27,7 +27,7 @@ dependencies = [
     ('libpng', '1.6.24'),  # for plotting in R
     ('libjpeg-turbo', '1.5.0'),  # for plottting in R
     ('LibTIFF', '4.0.6'),
-    ('Java', '1.8.0_92', '', True),  # Java bindings are built if Java is found, might as well provide it
+    ('Java', '1.8.0_92', '', SYSTEM),  # Java bindings are built if Java is found, might as well provide it
     ('Tcl', '8.6.5'),  # for tcltk
     ('Tk', '8.6.5'),  # for tcltk
     ('cURL', '7.49.1'),  # for RCurl
diff --git a/easybuild/easyconfigs/r/R/R-3.5.0-iomkl-2018a-X11-20180131.eb b/easybuild/easyconfigs/r/R/R-3.5.0-iomkl-2018a-X11-20180131.eb
index 7c15c4437a82..0852baef0e82 100644
--- a/easybuild/easyconfigs/r/R/R-3.5.0-iomkl-2018a-X11-20180131.eb
+++ b/easybuild/easyconfigs/r/R/R-3.5.0-iomkl-2018a-X11-20180131.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('libpng', '1.6.34'),  # for plotting in R
     ('libjpeg-turbo', '1.5.3'),  # for plottting in R
     ('LibTIFF', '4.0.9'),
-    ('Java', '1.8.0_162', '', True),  # Java bindings are built if Java is found, might as well provide it
+    ('Java', '1.8.0_162', '', SYSTEM),  # Java bindings are built if Java is found, might as well provide it
     ('Tcl', '8.6.8'),  # for tcltk
     ('Tk', '8.6.8'),  # for tcltk
     ('cURL', '7.58.0'),  # for RCurl
diff --git a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-Python-2.7.15.eb
index b13278061d05..3cf0f77bff88 100644
--- a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-Python-2.7.15.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('libpng', '1.6.34'),  # for plotting in R
     ('libjpeg-turbo', '2.0.0'),  # for plottting in R
     ('LibTIFF', '4.0.9'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Tk', '8.6.8'),  # for tcltk
     ('cURL', '7.60.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-bare.eb b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-bare.eb
index b6425f1a0f40..75f04ccc8006 100644
--- a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-bare.eb
+++ b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b-bare.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('libpng', '1.6.34'),  # for plotting in R
     ('libjpeg-turbo', '2.0.0'),  # for plottting in R
     ('LibTIFF', '4.0.9'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Tk', '8.6.8'),  # for tcltk
     ('cURL', '7.60.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b.eb b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b.eb
index 72905166d7df..e0d6e243698b 100644
--- a/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b.eb
+++ b/easybuild/easyconfigs/r/R/R-3.5.1-foss-2018b.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('libpng', '1.6.34'),  # for plotting in R
     ('libjpeg-turbo', '2.0.0'),  # for plottting in R
     ('LibTIFF', '4.0.9'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Tk', '8.6.8'),  # for tcltk
     ('cURL', '7.60.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.5.1-intel-2018b.eb b/easybuild/easyconfigs/r/R/R-3.5.1-intel-2018b.eb
index 4fad425acdd1..85c028d5c769 100644
--- a/easybuild/easyconfigs/r/R/R-3.5.1-intel-2018b.eb
+++ b/easybuild/easyconfigs/r/R/R-3.5.1-intel-2018b.eb
@@ -28,7 +28,7 @@ dependencies = [
     ('libpng', '1.6.34'),  # for plotting in R
     ('libjpeg-turbo', '2.0.0'),  # for plottting in R
     ('LibTIFF', '4.0.9'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Tk', '8.6.8'),  # for tcltk
     ('cURL', '7.60.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.0-foss-2019a.eb b/easybuild/easyconfigs/r/R/R-3.6.0-foss-2019a.eb
index b3dfeeb10127..4e4d1c99a5f3 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.0-foss-2019a.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.0-foss-2019a.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('libpng', '1.6.36'),  # for plotting in R
     ('libjpeg-turbo', '2.0.2'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.63.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.0-fosscuda-2019a.eb b/easybuild/easyconfigs/r/R/R-3.6.0-fosscuda-2019a.eb
index df2b372cf234..f20ae1ce6805 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.0-fosscuda-2019a.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.0-fosscuda-2019a.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('libpng', '1.6.36'),  # for plotting in R
     ('libjpeg-turbo', '2.0.2'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.63.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.0-intel-2019a.eb b/easybuild/easyconfigs/r/R/R-3.6.0-intel-2019a.eb
index 190263d2d3cf..385c219696e8 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.0-intel-2019a.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.0-intel-2019a.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('libpng', '1.6.36'),  # for plotting in R
     ('libjpeg-turbo', '2.0.2'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.63.0'),  # for RCurl
     ('libxml2', '2.9.8'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.2-foss-2019b.eb b/easybuild/easyconfigs/r/R/R-3.6.2-foss-2019b.eb
index 0bc641a52fc2..70af7d3e9fde 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.2-foss-2019b.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.2-foss-2019b.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.3'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.66.0'),  # for RCurl
     ('libxml2', '2.9.9'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.2-fosscuda-2019b.eb b/easybuild/easyconfigs/r/R/R-3.6.2-fosscuda-2019b.eb
index c455fc487cfd..99a3664d030a 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.2-fosscuda-2019b.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.2-fosscuda-2019b.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.3'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.66.0'),  # for RCurl
     ('libxml2', '2.9.9'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.2-intel-2019b.eb b/easybuild/easyconfigs/r/R/R-3.6.2-intel-2019b.eb
index cabb0423e804..a3abe2e37ee7 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.2-intel-2019b.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.2-intel-2019b.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.3'),  # for plottting in R
     ('LibTIFF', '4.0.10'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.9'),  # for tcltk
     ('cURL', '7.66.0'),  # for RCurl
     ('libxml2', '2.9.9'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-3.6.3-foss-2020a.eb b/easybuild/easyconfigs/r/R/R-3.6.3-foss-2020a.eb
index dc8f3642b9a5..ad7708d2b1f0 100644
--- a/easybuild/easyconfigs/r/R/R-3.6.3-foss-2020a.eb
+++ b/easybuild/easyconfigs/r/R/R-3.6.3-foss-2020a.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.4'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.69.1'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.0-foss-2020a.eb b/easybuild/easyconfigs/r/R/R-4.0.0-foss-2020a.eb
index 9afb0e13b613..faa29bd2b3e4 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.0-foss-2020a.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.0-foss-2020a.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.4'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.69.1'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.0-fosscuda-2020a.eb b/easybuild/easyconfigs/r/R/R-4.0.0-fosscuda-2020a.eb
index 4bd3700f4093..e1e620b56698 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.0-fosscuda-2020a.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.0-fosscuda-2020a.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.4'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.69.1'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.3-foss-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.3-foss-2020b.eb
index 3226ee0f4bcb..782f039b4920 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.3-foss-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.3-foss-2020b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.3-fosscuda-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.3-fosscuda-2020b.eb
index d35824d64ba5..db5d9c9e47c1 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.3-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.3-fosscuda-2020b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.4-foss-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.4-foss-2020b.eb
index 26d6cbdb27be..c7d07e5f2ac0 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.4-foss-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.4-foss-2020b.eb
@@ -36,7 +36,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.4-fosscuda-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.4-fosscuda-2020b.eb
index 9c612d32b958..afc6216b0bf0 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.4-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.4-fosscuda-2020b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.5-foss-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.5-foss-2020b.eb
index febdb0ca5e7b..bf2b31d78ee4 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.5-foss-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.5-foss-2020b.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.0.5-fosscuda-2020b.eb b/easybuild/easyconfigs/r/R/R-4.0.5-fosscuda-2020b.eb
index d1e5430a1043..be10c211dc47 100644
--- a/easybuild/easyconfigs/r/R/R-4.0.5-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.0.5-fosscuda-2020b.eb
@@ -33,7 +33,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.5'),  # for plottting in R
     ('LibTIFF', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.10'),  # for tcltk
     ('cURL', '7.72.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
diff --git a/easybuild/easyconfigs/r/R/R-4.1.0-foss-2021a.eb b/easybuild/easyconfigs/r/R/R-4.1.0-foss-2021a.eb
index 3bdb84f74b23..d7eb4353a4d9 100644
--- a/easybuild/easyconfigs/r/R/R-4.1.0-foss-2021a.eb
+++ b/easybuild/easyconfigs/r/R/R-4.1.0-foss-2021a.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.6'),  # for plottting in R
     ('LibTIFF', '4.2.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.11'),  # for tcltk
     ('cURL', '7.76.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
@@ -51,7 +51,7 @@ dependencies = [
     ('nodejs', '14.17.0'),  # for V8 (required by rstan)
     ('GDAL', '3.3.0'),  # for sf
     ('libgit2', '1.1.0'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 # Some R extensions (mclust, quantreg, waveslim for example) require the math library (-lm) to avoid undefined symbols.
diff --git a/easybuild/easyconfigs/r/R/R-4.1.2-foss-2021b.eb b/easybuild/easyconfigs/r/R/R-4.1.2-foss-2021b.eb
index 9c0872e0343e..97750491d424 100644
--- a/easybuild/easyconfigs/r/R/R-4.1.2-foss-2021b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.1.2-foss-2021b.eb
@@ -34,7 +34,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.6'),  # for plottting in R
     ('LibTIFF', '4.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.11'),  # for tcltk
     ('cURL', '7.78.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
@@ -52,7 +52,7 @@ dependencies = [
     ('GDAL', '3.3.2'),  # for sf
     ('MPFR', '4.1.0'),  # for Rmpfr
     ('libgit2', '1.1.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 # Some R extensions (mclust, quantreg, waveslim for example) require the math library (-lm) to avoid undefined symbols.
diff --git a/easybuild/easyconfigs/r/R/R-4.2.0-foss-2021b.eb b/easybuild/easyconfigs/r/R/R-4.2.0-foss-2021b.eb
index 46ee68285da3..6175f90d8341 100644
--- a/easybuild/easyconfigs/r/R/R-4.2.0-foss-2021b.eb
+++ b/easybuild/easyconfigs/r/R/R-4.2.0-foss-2021b.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.0.6'),  # for plottting in R
     ('LibTIFF', '4.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.11'),  # for tcltk
     ('cURL', '7.78.0'),  # for RCurl
     ('libxml2', '2.9.10'),  # for XML
@@ -53,7 +53,7 @@ dependencies = [
     ('GDAL', '3.3.2'),  # for sf
     ('MPFR', '4.1.0'),  # for Rmpfr
     ('libgit2', '1.1.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 # Some R extensions (mclust, quantreg, waveslim for example) require the math library (-lm) to avoid undefined symbols.
diff --git a/easybuild/easyconfigs/r/R/R-4.2.1-foss-2022a.eb b/easybuild/easyconfigs/r/R/R-4.2.1-foss-2022a.eb
index 1dfdcecb129c..b97f484e225a 100644
--- a/easybuild/easyconfigs/r/R/R-4.2.1-foss-2022a.eb
+++ b/easybuild/easyconfigs/r/R/R-4.2.1-foss-2022a.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('libpng', '1.6.37'),  # for plotting in R
     ('libjpeg-turbo', '2.1.3'),  # for plottting in R
     ('LibTIFF', '4.3.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Tk', '8.6.12'),  # for tcltk
     ('cURL', '7.83.0'),  # for RCurl
     ('libxml2', '2.9.13'),  # for XML
@@ -49,7 +49,7 @@ dependencies = [
     ('GDAL', '3.5.0'),  # for sf
     ('MPFR', '4.1.0'),  # for Rmpfr
     ('libgit2', '1.4.3'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 # Some R extensions (mclust, quantreg, waveslim for example) require the math library (-lm) to avoid undefined symbols.
diff --git a/easybuild/easyconfigs/r/RDKit/RDKit-2018.09.3-intel-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/r/RDKit/RDKit-2018.09.3-intel-2018b-Python-3.6.6.eb
index 84be9e4f58f3..5cec5783bdc1 100644
--- a/easybuild/easyconfigs/r/RDKit/RDKit-2018.09.3-intel-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/r/RDKit/RDKit-2018.09.3-intel-2018b-Python-3.6.6.eb
@@ -15,7 +15,7 @@ checksums = ['3be20bade43657c0d74617ab99ca30f872eaaedc314a87f690ac38e5ef590224']
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/r/RDKit/RDKit-2019.09.3-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/r/RDKit/RDKit-2019.09.3-foss-2019b-Python-3.7.4.eb
index d7db76040546..eb85dc0a82aa 100644
--- a/easybuild/easyconfigs/r/RDKit/RDKit-2019.09.3-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/r/RDKit/RDKit-2019.09.3-foss-2019b-Python-3.7.4.eb
@@ -22,7 +22,7 @@ checksums = [
 
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-foss-2020a-Python-3.8.2.eb
index 0f3478b407fb..3ddb556d58b2 100644
--- a/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-foss-2020a-Python-3.8.2.eb
@@ -26,7 +26,7 @@ checksums = [
 # https://rdkit.readthedocs.io/en/latest/Install.html#installing-prerequisites-from-source
 builddependencies = [
     ('CMake', '3.16.4'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-intel-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-intel-2020a-Python-3.8.2.eb
index 9114ab335e8c..33bde2b7c1f9 100644
--- a/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-intel-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/r/RDKit/RDKit-2020.03.3-intel-2020a-Python-3.8.2.eb
@@ -26,7 +26,7 @@ checksums = [
 # https://rdkit.readthedocs.io/en/latest/Install.html#installing-prerequisites-from-source
 builddependencies = [
     ('CMake', '3.16.4'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/r/RDKit/RDKit-2020.09.3-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/r/RDKit/RDKit-2020.09.3-foss-2019b-Python-3.7.4.eb
index 30280d9b65fd..501cd89e3bcf 100644
--- a/easybuild/easyconfigs/r/RDKit/RDKit-2020.09.3-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/r/RDKit/RDKit-2020.09.3-foss-2019b-Python-3.7.4.eb
@@ -24,7 +24,7 @@ checksums = [
 # https://rdkit.readthedocs.io/en/latest/Install.html#installing-prerequisites-from-source
 builddependencies = [
     ('CMake', '3.15.3'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('pkg-config', '0.29.2'),
 ]
 dependencies = [
diff --git a/easybuild/easyconfigs/r/RELION/RELION-2.1-foss-2018a-CUDA-9.1.85.eb b/easybuild/easyconfigs/r/RELION/RELION-2.1-foss-2018a-CUDA-9.1.85.eb
index 747d228757a9..c9c0251c2324 100644
--- a/easybuild/easyconfigs/r/RELION/RELION-2.1-foss-2018a-CUDA-9.1.85.eb
+++ b/easybuild/easyconfigs/r/RELION/RELION-2.1-foss-2018a-CUDA-9.1.85.eb
@@ -23,7 +23,7 @@ checksums = [
 builddependencies = [('CMake', '3.10.1')]
 
 dependencies = [
-    ('CUDA', local_cuda_ver, '', True),
+    ('CUDA', local_cuda_ver, '', SYSTEM),
     ('X11', '20180131'),
     ('FLTK', '1.3.4'),
 ]
diff --git a/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.2.3-GCC-8.3.0.eb b/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.2.3-GCC-8.3.0.eb
index dbd242572b8f..babe47dcf73a 100644
--- a/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.2.3-GCC-8.3.0.eb
+++ b/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.2.3-GCC-8.3.0.eb
@@ -13,7 +13,7 @@ sources = ['rnabloom_v%(version)s.tar.gz']
 checksums = ['7418761ff99f24f0edc23772cfa517c3d7401eac98642dcb017d48fb35c6ee4a']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('minimap2', '2.17'),
     ('Racon', '1.4.13'),
     ('ntCard', '1.2.1'),
diff --git a/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.4.3-GCC-11.2.0.eb b/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.4.3-GCC-11.2.0.eb
index 02ac929561f3..86df55711063 100644
--- a/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.4.3-GCC-11.2.0.eb
+++ b/easybuild/easyconfigs/r/RNA-Bloom/RNA-Bloom-1.4.3-GCC-11.2.0.eb
@@ -13,7 +13,7 @@ sources = ['rnabloom_v%(version)s.tar.gz']
 checksums = ['819274d674fe350ae3a1e1136618d52a8abb941280f604c6777ea4540b299a38']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('minimap2', '2.24'),
     ('Racon', '1.5.0'),
     ('ntCard', '1.2.1'),
diff --git a/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2016b-Java-1.8.0_121.eb b/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2016b-Java-1.8.0_121.eb
index 9ff756082370..f6ee37eac642 100644
--- a/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2016b-Java-1.8.0_121.eb
+++ b/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2016b-Java-1.8.0_121.eb
@@ -22,7 +22,7 @@ checksums = ['0a6a8cc885e77c7e7b75dafcfd2152e0d1031fa7aba2565250a46fbd98979793']
 
 dependencies = [
     ('BWA', '0.7.16a'),
-    ('Java', '1.8.0_121', '', True),
+    ('Java', '1.8.0_121', '', SYSTEM),
 ]
 
 modloadmsg = """To execute RNA-SeQC run: java -jar $EBROOTRNAMINSEQC/%(name)s_v%(version)s.jar\n"""
diff --git a/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2018b-Java-1.8.eb b/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2018b-Java-1.8.eb
index 75bf91935f7c..22e20680911e 100644
--- a/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2018b-Java-1.8.eb
+++ b/easybuild/easyconfigs/r/RNA-SeQC/RNA-SeQC-1.1.8-foss-2018b-Java-1.8.eb
@@ -22,7 +22,7 @@ checksums = ['0a6a8cc885e77c7e7b75dafcfd2152e0d1031fa7aba2565250a46fbd98979793']
 
 dependencies = [
     ('BWA', '0.7.17'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
 ]
 
 modloadmsg = "To execute RNA-SeQC run: java -jar $EBROOTRNAMINSEQC/%(name)s_v%(version)s.jar"
diff --git a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5033-fosscuda-2019b-Java-11.eb b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5033-fosscuda-2019b-Java-11.eb
index e68f58adf656..0e6ae1282eb8 100644
--- a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5033-fosscuda-2019b-Java-11.eb
+++ b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5033-fosscuda-2019b-Java-11.eb
@@ -29,13 +29,13 @@ checksums = [
 builddependencies = [
     ('pkg-config', '0.29.2'),
     ('CMake', '3.15.3'),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
 ]
 
 dependencies = [
     ('Boost', '1.71.0'),
     ('R', '3.6.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 osdependencies = [
diff --git a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5042-foss-2019b-Java-11.eb b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5042-foss-2019b-Java-11.eb
index 756445042c1c..b91df14e3100 100644
--- a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5042-foss-2019b-Java-11.eb
+++ b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.2.5042-foss-2019b-Java-11.eb
@@ -29,13 +29,13 @@ checksums = [
 builddependencies = [
     ('pkg-config', '0.29.2'),
     ('CMake', '3.15.3'),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
 ]
 
 dependencies = [
     ('Boost', '1.71.0'),
     ('R', '3.6.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 osdependencies = [
diff --git a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.1093-foss-2020a-Java-11-R-4.0.0.eb b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.1093-foss-2020a-Java-11-R-4.0.0.eb
index 4c871371f5ee..80dfe9052a94 100644
--- a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.1093-foss-2020a-Java-11-R-4.0.0.eb
+++ b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.1093-foss-2020a-Java-11-R-4.0.0.eb
@@ -29,13 +29,13 @@ checksums = [
 builddependencies = [
     ('pkg-config', '0.29.2'),
     ('CMake', '3.16.4'),
-    ('ant', '1.10.8', '-Java-%(javaver)s', True),
+    ('ant', '1.10.8', '-Java-%(javaver)s', SYSTEM),
 ]
 
 dependencies = [
     ('Boost', '1.72.0'),
     ('R', '4.0.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 osdependencies = [
diff --git a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.959-foss-2020a-Java-11-R-4.0.0.eb b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.959-foss-2020a-Java-11-R-4.0.0.eb
index 26f4b962160e..2ef5e389064f 100644
--- a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.959-foss-2020a-Java-11-R-4.0.0.eb
+++ b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.3.959-foss-2020a-Java-11-R-4.0.0.eb
@@ -25,13 +25,13 @@ checksums = [
 builddependencies = [
     ('pkg-config', '0.29.2'),
     ('CMake', '3.16.4'),
-    ('ant', '1.10.8', '-Java-%(javaver)s', True),
+    ('ant', '1.10.8', '-Java-%(javaver)s', SYSTEM),
 ]
 
 dependencies = [
     ('Boost', '1.72.0'),
     ('R', '4.0.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 osdependencies = [
diff --git a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.4.1717-foss-2021a-Java-11-R-4.1.0.eb b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.4.1717-foss-2021a-Java-11-R-4.1.0.eb
index d163c925d0cc..db9cd5d65bf9 100644
--- a/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.4.1717-foss-2021a-Java-11-R-4.1.0.eb
+++ b/easybuild/easyconfigs/r/RStudio-Server/RStudio-Server-1.4.1717-foss-2021a-Java-11-R-4.1.0.eb
@@ -21,13 +21,13 @@ checksums = ['3af234180fd7cef451aef40faac2c7b52860f14a322244c1c7aede029814d261']
 builddependencies = [
     ('pkg-config', '0.29.2'),
     ('CMake', '3.20.1'),
-    ('ant', '1.10.11', '-Java-%(javaver)s', True),
+    ('ant', '1.10.11', '-Java-%(javaver)s', SYSTEM),
 ]
 
 dependencies = [
     ('Boost', '1.76.0'),
     ('R', '4.1.0'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('SOCI', '4.0.2'),
 ]
 
diff --git a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
index e8ef0ee102fa..786360704baa 100644
--- a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
+++ b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
@@ -14,7 +14,7 @@ checksums = ['e294396f49ec236626c47020ce3c893ba08a50bce204e1d51a074978d215b558']
 
 dependencies = [
     ('Perl', '5.26.0'),
-    ('TRF', '4.09', '-linux64', True),
+    ('TRF', '4.09', '-linux64', SYSTEM),
     ('HMMER', '3.1b2'),
 ]
 
diff --git a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-iccifort-2017.4.196-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-iccifort-2017.4.196-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
index 52f3b80f9310..7eafecb79751 100644
--- a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-iccifort-2017.4.196-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
+++ b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-iccifort-2017.4.196-GCC-6.4.0-2.28-Perl-5.26.0-HMMER.eb
@@ -14,7 +14,7 @@ checksums = ['e294396f49ec236626c47020ce3c893ba08a50bce204e1d51a074978d215b558']
 
 dependencies = [
     ('Perl', '5.26.0'),
-    ('TRF', '4.09', '-linux64', True),
+    ('TRF', '4.09', '-linux64', SYSTEM),
     ('HMMER', '3.1b2'),
 ]
 
diff --git a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-intel-2018b-Perl-5.28.0-HMMER.eb b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-intel-2018b-Perl-5.28.0-HMMER.eb
index 49bf1b790e10..ffb217fc6f45 100644
--- a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-intel-2018b-Perl-5.28.0-HMMER.eb
+++ b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.8-intel-2018b-Perl-5.28.0-HMMER.eb
@@ -14,7 +14,7 @@ checksums = ['e294396f49ec236626c47020ce3c893ba08a50bce204e1d51a074978d215b558']
 
 dependencies = [
     ('Perl', '5.28.0'),
-    ('TRF', '4.09', '-linux64', True),
+    ('TRF', '4.09', '-linux64', SYSTEM),
     ('HMMER', '3.2.1'),
 ]
 
diff --git a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.9-p2-gompi-2019b-HMMER.eb b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.9-p2-gompi-2019b-HMMER.eb
index bb5f15e74c33..9f6c7bc0b017 100644
--- a/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.9-p2-gompi-2019b-HMMER.eb
+++ b/easybuild/easyconfigs/r/RepeatMasker/RepeatMasker-4.0.9-p2-gompi-2019b-HMMER.eb
@@ -25,7 +25,7 @@ checksums = [
 
 dependencies = [
     ('Perl', '5.30.0'),
-    ('TRF', '4.09', '-linux64', True),
+    ('TRF', '4.09', '-linux64', SYSTEM),
     ('HMMER', '3.2.1'),
 ]
 
diff --git a/easybuild/easyconfigs/r/RheoTool/RheoTool-5.0-foss-2019b.eb b/easybuild/easyconfigs/r/RheoTool/RheoTool-5.0-foss-2019b.eb
index 86bb0bbf1ae1..b9117db641eb 100644
--- a/easybuild/easyconfigs/r/RheoTool/RheoTool-5.0-foss-2019b.eb
+++ b/easybuild/easyconfigs/r/RheoTool/RheoTool-5.0-foss-2019b.eb
@@ -15,7 +15,7 @@ checksums = ['2e0899684d6d7f9ddee0d93b39a6ed56262b171bc4e5536914645209b66003ed']
 
 dependencies = [
     ('OpenFOAM', '7', '-20200508'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('PETSc', '3.12.4', '-Python-3.7.4'),
 ]
 
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.2.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.2.0.eb
index eaec7699da4f..7eab5f3ec8de 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.2.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.3.0.eb
index 2a008d86759d..8d66638b61da 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.52.1-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.54.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.54.0-GCCcore-11.2.0.eb
index 9f045c62c02d..3916f14fbd94 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.54.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.54.0-GCCcore-11.2.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.56.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.56.0-GCCcore-11.2.0.eb
index 58777add4e02..c70ed36ffd93 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.56.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.56.0-GCCcore-11.2.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-10.3.0.eb
index 5eab0202819b..0b1bb2ee921e 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-11.3.0.eb b/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-11.3.0.eb
index ecaf7753a896..0a1bf6c1485f 100644
--- a/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/r/Rust/Rust-1.60.0-GCCcore-11.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 configopts = "--enable-extended --sysconfdir=%(installdir)s/etc "
diff --git a/easybuild/easyconfigs/r/rising/rising-0.2.2-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/r/rising/rising-0.2.2-foss-2021a-CUDA-11.3.1.eb
index 6680caa1442e..2a055d37ff0d 100644
--- a/easybuild/easyconfigs/r/rising/rising-0.2.2-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/r/rising/rising-0.2.2-foss-2021a-CUDA-11.3.1.eb
@@ -13,7 +13,7 @@ toolchain = {'name': 'foss', 'version': '2021a'}
 github_account = 'PhoenixDL'
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('SciPy-bundle', '2021.05'),  # provides numpy
     ('PyTorch', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/s/SCGid/SCGid-0.9b0-foss-2021b.eb b/easybuild/easyconfigs/s/SCGid/SCGid-0.9b0-foss-2021b.eb
index dbefc98c9f4c..173bc41c41ad 100644
--- a/easybuild/easyconfigs/s/SCGid/SCGid-0.9b0-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/SCGid/SCGid-0.9b0-foss-2021b.eb
@@ -27,8 +27,8 @@ dependencies = [
     ('R', '4.1.2'),
     ('BLAST+', '2.12.0'),
     ('AUGUSTUS', '3.4.0'),
-    ('Java', '11', '', True),
-    ('Maven', '3.6.3', '', True),
+    ('Java', '11', '', SYSTEM),
+    ('Maven', '3.6.3', '', SYSTEM),
     ('plotly.py', '5.4.0'),
     ('ETE', '3.1.2'),
     ('PyYAML', '5.4.1'),
diff --git a/easybuild/easyconfigs/s/SECAPR/SECAPR-1.1.15-foss-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/s/SECAPR/SECAPR-1.1.15-foss-2019b-Python-2.7.16.eb
index f137d101fa24..e19b28dbb975 100644
--- a/easybuild/easyconfigs/s/SECAPR/SECAPR-1.1.15-foss-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/s/SECAPR/SECAPR-1.1.15-foss-2019b-Python-2.7.16.eb
@@ -17,16 +17,16 @@ dependencies = [
     ('ABySS', '2.1.5'),
     ('Biopython', '1.75', versionsuffix),
     ('BWA', '0.7.17'),
-    ('picard', '2.21.6', '-Java-11', True),
+    ('picard', '2.21.6', '-Java-11', SYSTEM),
     ('BCFtools', '1.10.2'),
     ('EMBOSS', '6.6.0', '-Java-11'),
-    ('FastQC', '0.11.9', '-Java-11', True),
+    ('FastQC', '0.11.9', '-Java-11', SYSTEM),
     ('LASTZ', '1.04.03'),
     ('MAFFT', '7.453', '-with-extensions'),
     ('MUSCLE', '3.8.1551'),
     ('SAMtools', '1.10'),
     ('seqtk', '1.3'),
-    ('Trimmomatic', '0.39', '-Java-11', True),
+    ('Trimmomatic', '0.39', '-Java-11', SYSTEM),
     ('Trinity', '2.9.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.1-GCCcore-8.2.0-Java-11.eb b/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.1-GCCcore-8.2.0-Java-11.eb
index dcc982d7e1f9..ae01366c9efd 100644
--- a/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.1-GCCcore-8.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.1-GCCcore-8.2.0-Java-11.eb
@@ -20,7 +20,7 @@ checksums = ['11cd754087fc3a8a12362af6140949726d4c32f1097a7c387d116cc1cf7e234e']
 builddependencies = [('binutils', '2.31.1')]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('NGS', '2.10.0', '-Java-11'),
     ('bzip2', '1.0.6'),
 ]
diff --git a/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.2-GCCcore-10.2.0.eb b/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.2-GCCcore-10.2.0.eb
index 41984431bdc1..3aac6838fbfa 100644
--- a/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.2-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/s/SRPRISM/SRPRISM-3.1.2-GCCcore-10.2.0.eb
@@ -15,7 +15,7 @@ checksums = ['93e6864b7ab18be96584950227426102b545db7d6d02762490a43e1610b7eb9b']
 builddependencies = [('binutils', '2.35')]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('NGS', '2.10.9'),
     ('bzip2', '1.0.8'),
 ]
diff --git a/easybuild/easyconfigs/s/SUMO/SUMO-1.12.0-foss-2021b.eb b/easybuild/easyconfigs/s/SUMO/SUMO-1.12.0-foss-2021b.eb
index fecda0386eed..5d5ce7762a77 100644
--- a/easybuild/easyconfigs/s/SUMO/SUMO-1.12.0-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/SUMO/SUMO-1.12.0-foss-2021b.eb
@@ -23,7 +23,7 @@ checksums = [
 builddependencies = [
     ('CMake', '3.22.1'),
     ('SWIG', '4.0.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/s/SUMO/SUMO-1.14.1-foss-2021b.eb b/easybuild/easyconfigs/s/SUMO/SUMO-1.14.1-foss-2021b.eb
index 17783cb2a67f..fb78dda30bc7 100644
--- a/easybuild/easyconfigs/s/SUMO/SUMO-1.14.1-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/SUMO/SUMO-1.14.1-foss-2021b.eb
@@ -23,7 +23,7 @@ checksums = [
 builddependencies = [
     ('CMake', '3.22.1'),
     ('SWIG', '4.0.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/s/SUMO/SUMO-1.7.0-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/s/SUMO/SUMO-1.7.0-foss-2020a-Python-3.8.2.eb
index 30e5d21317cb..eb4f55f24304 100644
--- a/easybuild/easyconfigs/s/SUMO/SUMO-1.7.0-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/s/SUMO/SUMO-1.7.0-foss-2020a-Python-3.8.2.eb
@@ -23,7 +23,7 @@ checksums = [
 builddependencies = [
     ('CMake', '3.16.4'),
     ('SWIG', '4.0.1'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-10.3.0.eb b/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-10.3.0.eb
index d65645b9dd52..d319f5ccfa11 100644
--- a/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 dependencies = [
     ('APR', '1.7.0'),
     ('APR-util', '1.6.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 buildopts = "APR=$EBROOTAPR/bin/apr-1-config APU=$EBROOTAPRMINUTIL/bin/apu-1-config"
diff --git a/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-11.2.0.eb b/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-11.2.0.eb
index c6fb0da1ec00..72cdc72b88fe 100644
--- a/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/s/Serf/Serf-1.3.9-GCCcore-11.2.0.eb
@@ -25,7 +25,7 @@ builddependencies = [
 dependencies = [
     ('APR', '1.7.0'),
     ('APR-util', '1.6.1'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
 ]
 
 buildopts = "APR=$EBROOTAPR/bin/apr-1-config APU=$EBROOTAPRMINUTIL/bin/apu-1-config"
diff --git a/easybuild/easyconfigs/s/Shasta/Shasta-0.8.0-foss-2020b.eb b/easybuild/easyconfigs/s/Shasta/Shasta-0.8.0-foss-2020b.eb
index 3781b94855ab..b6965d55e69f 100644
--- a/easybuild/easyconfigs/s/Shasta/Shasta-0.8.0-foss-2020b.eb
+++ b/easybuild/easyconfigs/s/Shasta/Shasta-0.8.0-foss-2020b.eb
@@ -29,7 +29,7 @@ checksums = [
 
 builddependencies = [
     ('CMake', '3.18.4'),
-    ('Cereal', '1.3.0', '', True),
+    ('Cereal', '1.3.0', '', SYSTEM),
 ]
 
 dependencies = [
diff --git a/easybuild/easyconfigs/s/SimpleElastix/SimpleElastix-1.1.0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/s/SimpleElastix/SimpleElastix-1.1.0-foss-2019b-Python-3.7.4.eb
index 03165ec8f415..29d9b21e0d81 100644
--- a/easybuild/easyconfigs/s/SimpleElastix/SimpleElastix-1.1.0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/s/SimpleElastix/SimpleElastix-1.1.0-foss-2019b-Python-3.7.4.eb
@@ -16,7 +16,7 @@ toolchainopts = {'pic': True}
 builddependencies = [
     ('CMake', '3.15.3'),
     ('Bison', '3.3.2'),
-    ('Eigen', '3.3.7', '', True),
+    ('Eigen', '3.3.7', '', SYSTEM),
     ('googletest', '1.10.0'),
 ]
 
diff --git a/easybuild/easyconfigs/s/SlamDunk/SlamDunk-0.4.3-foss-2021b.eb b/easybuild/easyconfigs/s/SlamDunk/SlamDunk-0.4.3-foss-2021b.eb
index 63485234dcbe..996aeca133c6 100644
--- a/easybuild/easyconfigs/s/SlamDunk/SlamDunk-0.4.3-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/SlamDunk/SlamDunk-0.4.3-foss-2021b.eb
@@ -19,7 +19,7 @@ dependencies = [
     ('Pysam', '0.17.0'),
     ('Biopython', '1.79'),
     ('SAMtools', '1.14'),
-    ('VarScan', '2.4.4', '-Java-11', True),
+    ('VarScan', '2.4.4', '-Java-11', SYSTEM),
     ('R', '4.1.2'),
     ('NextGenMap', '0.5.5'),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-Hadoop-2.7-Java-1.8.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-Hadoop-2.7-Java-1.8.eb
index 073734a3f85a..f14e575058ab 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-Hadoop-2.7-Java-1.8.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-Hadoop-2.7-Java-1.8.eb
@@ -17,7 +17,7 @@ source_urls = [
 ]
 checksums = ['c93c096c8d64062345b26b34c85127a6848cff95a4bb829333a06b83222a5cfa']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/spark-shell'],
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-foss-2018b-Python-2.7.15.eb
index 23510072e38a..d780b9c3b022 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-foss-2018b-Python-2.7.15.eb
@@ -19,7 +19,7 @@ checksums = ['c93c096c8d64062345b26b34c85127a6848cff95a4bb829333a06b83222a5cfa']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.9.2', '-native'),
     ('Arrow', '0.12.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Hadoop-2.7-Java-1.8-Python-3.6.6.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Hadoop-2.7-Java-1.8-Python-3.6.6.eb
index 6fa3caf6edec..e643595c3701 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Hadoop-2.7-Java-1.8-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Hadoop-2.7-Java-1.8-Python-3.6.6.eb
@@ -19,7 +19,7 @@ sources = ['%%(namelower)s-%%(version)s-bin-hadoop%s.tgz' % local_hadoopver]
 checksums = ['c93c096c8d64062345b26b34c85127a6848cff95a4bb829333a06b83222a5cfa']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Python', '3.6.6'),
 ]
 
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-2.7.15.eb
index 387340456d04..f7991b20743e 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-2.7.15.eb
@@ -19,7 +19,7 @@ checksums = ['c93c096c8d64062345b26b34c85127a6848cff95a4bb829333a06b83222a5cfa']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.9.2', '-native'),
     ('Arrow', '0.12.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-3.6.6.eb
index cd360504934e..7dd10c2a0c70 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.0-intel-2018b-Python-3.6.6.eb
@@ -19,7 +19,7 @@ checksums = ['c93c096c8d64062345b26b34c85127a6848cff95a4bb829333a06b83222a5cfa']
 
 dependencies = [
     ('Python', '3.6.6'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.9.2', '-native'),
     ('Arrow', '0.12.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-2.4.5-intel-2019b-Python-3.7.4-Java-1.8.eb b/easybuild/easyconfigs/s/Spark/Spark-2.4.5-intel-2019b-Python-3.7.4-Java-1.8.eb
index f8644c9fdea3..46a739bcb585 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-2.4.5-intel-2019b-Python-3.7.4-Java-1.8.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-2.4.5-intel-2019b-Python-3.7.4-Java-1.8.eb
@@ -22,7 +22,7 @@ checksums = ['020be52524e4df366eb974d41a6e18fcb6efcaba9a51632169e917c74267dd81']
 
 dependencies = [
     ('Python', '3.7.4'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.10.0', '-native'),
     ('Arrow', '0.16.0', local_python_versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.0.0-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/Spark/Spark-3.0.0-foss-2018b-Python-2.7.15.eb
index adae6b1c2c76..c7ad27d0aa2e 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.0.0-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.0.0-foss-2018b-Python-2.7.15.eb
@@ -18,7 +18,7 @@ checksums = ['98f6b92e5c476d7abb93cc179c2616aa5dc897da25753bd197e20ef54a28d945']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.9.2', '-native'),
     ('Arrow', '0.12.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.0.0-intel-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/Spark/Spark-3.0.0-intel-2018b-Python-2.7.15.eb
index df8e7e468b15..64cc3061e751 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.0.0-intel-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.0.0-intel-2018b-Python-2.7.15.eb
@@ -18,7 +18,7 @@ checksums = ['98f6b92e5c476d7abb93cc179c2616aa5dc897da25753bd197e20ef54a28d945']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Hadoop', '2.9.2', '-native'),
     ('Arrow', '0.12.0', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020a-Python-3.8.2.eb
index cecf3035382f..fd4330433779 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020a-Python-3.8.2.eb
@@ -20,7 +20,7 @@ checksums = ['4e0846207bf10311de43451bc99309086fce7990aaf54bf3038608b1981afbe7']
 
 dependencies = [
     ('Python', '3.8.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # ('Hadoop', '2.10.0', '-native'),
     ('Arrow', '0.17.1', versionsuffix),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020b.eb b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020b.eb
index 5cb1ec3c5ee6..c5815aa76aaa 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020b.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-foss-2020b.eb
@@ -19,7 +19,7 @@ checksums = ['4e0846207bf10311de43451bc99309086fce7990aaf54bf3038608b1981afbe7']
 
 dependencies = [
     ('Python', '3.8.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # ('Hadoop', '2.10.0', '-native'),
     ('Arrow', '0.17.1'),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-fosscuda-2020b.eb b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-fosscuda-2020b.eb
index b4585778e530..e08aae3577c2 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.1.1-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.1.1-fosscuda-2020b.eb
@@ -19,7 +19,7 @@ checksums = ['4e0846207bf10311de43451bc99309086fce7990aaf54bf3038608b1981afbe7']
 
 dependencies = [
     ('Python', '3.8.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # ('Hadoop', '2.10.0', '-native'),
     ('Arrow', '0.17.1'),
 ]
diff --git a/easybuild/easyconfigs/s/Spark/Spark-3.2.1-foss-2021b.eb b/easybuild/easyconfigs/s/Spark/Spark-3.2.1-foss-2021b.eb
index 7ae8baa19879..f9867229cb9d 100644
--- a/easybuild/easyconfigs/s/Spark/Spark-3.2.1-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/Spark/Spark-3.2.1-foss-2021b.eb
@@ -19,7 +19,7 @@ checksums = ['224e058cb0c6fb68b39896427a3ccd11ae2246e9bf465b5e29e4fb192d39a59c']
 
 dependencies = [
     ('Python', '3.9.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     # ('Hadoop', '2.10.0', '-native'),
     ('Arrow', '6.0.0'),
 ]
diff --git a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-0.4.3-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-0.4.3-foss-2018b-Python-2.7.15.eb
index 99b2e9b26ea7..a6aacdefcaf0 100644
--- a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-0.4.3-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-0.4.3-foss-2018b-Python-2.7.15.eb
@@ -34,12 +34,12 @@ dependencies = [
     ('DIAMOND', '0.9.22'),
     ('MEGAHIT', '1.1.4', versionsuffix),
     ('minimap2', '2.13'),
-    ('Java', '1.8', '', True),
-    ('RDP-Classifier', '2.12', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('RDP-Classifier', '2.12', '-Java-%(javaver)s', SYSTEM),
     ('MetaBAT', '2.12.1', versionsuffix),
     ('MinPath', '1.4', versionsuffix),  # depends on GPLK (which provides glpsol)
     ('PRINSEQ', '0.20.4', '-Perl-%(perlver)s'),
-    ('Trimmomatic', '0.38', '-Java-%(javaver)s', True),
+    ('Trimmomatic', '0.38', '-Java-%(javaver)s', SYSTEM),
     ('AMOS', '3.1.0'),
     ('MaxBin', '2.2.6', '-Perl-%(perlver)s'),
     ('SPAdes', '3.13.0'),
@@ -47,7 +47,7 @@ dependencies = [
     ('canu', '1.8', '-Perl-%(perlver)s'),
     ('HMMER', '3.2.1'),
     ('MUMmer', '4.0.0beta2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
 ]
 
 keepsymlinks = True
diff --git a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.0.0-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.0.0-foss-2018b-Python-2.7.15.eb
index bc932b4a6c73..49bda51b080f 100644
--- a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.0.0-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.0.0-foss-2018b-Python-2.7.15.eb
@@ -33,12 +33,12 @@ dependencies = [
     ('DIAMOND', '0.9.22'),
     ('MEGAHIT', '1.1.4', versionsuffix),
     ('minimap2', '2.13'),
-    ('Java', '1.8', '', True),
-    ('RDP-Classifier', '2.12', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('RDP-Classifier', '2.12', '-Java-%(javaver)s', SYSTEM),
     ('MetaBAT', '2.12.1', versionsuffix),
     ('MinPath', '1.4', versionsuffix),  # depends on GPLK (which provides glpsol)
     ('PRINSEQ', '0.20.4', '-Perl-%(perlver)s'),
-    ('Trimmomatic', '0.38', '-Java-%(javaver)s', True),
+    ('Trimmomatic', '0.38', '-Java-%(javaver)s', SYSTEM),
     ('AMOS', '3.1.0'),
     ('MaxBin', '2.2.6', '-Perl-%(perlver)s'),
     ('SPAdes', '3.13.0'),
@@ -46,7 +46,7 @@ dependencies = [
     ('canu', '1.8', '-Perl-%(perlver)s'),
     ('HMMER', '3.2.1'),
     ('MUMmer', '4.0.0beta2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('Short-Pair', '20170125', versionsuffix),
     ('SAMtools', '1.9'),
     ('CompareM', '0.0.23', versionsuffix),
diff --git a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.5.0-foss-2021b.eb b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.5.0-foss-2021b.eb
index 492c34fe96ce..f1a8cec6d8da 100644
--- a/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.5.0-foss-2021b.eb
+++ b/easybuild/easyconfigs/s/SqueezeMeta/SqueezeMeta-1.5.0-foss-2021b.eb
@@ -30,12 +30,12 @@ dependencies = [
     ('DIAMOND', '2.0.13'),
     ('MEGAHIT', '1.2.9'),
     ('minimap2', '2.22'),
-    ('Java', '11', '', True),
-    ('RDP-Classifier', '2.13', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('RDP-Classifier', '2.13', '-Java-%(javaver)s', SYSTEM),
     ('MetaBAT', '2.15'),
     ('MinPath', '1.6'),  # depends on GPLK (which provides glpsol)
     ('PRINSEQ', '0.20.4', '-Perl-%(perlver)s'),
-    ('Trimmomatic', '0.39', '-Java-%(javaver)s', True),
+    ('Trimmomatic', '0.39', '-Java-%(javaver)s', SYSTEM),
     ('AMOS', '3.1.0'),
     ('MaxBin', '2.2.7'),
     ('SPAdes', '3.15.3'),
@@ -43,7 +43,7 @@ dependencies = [
     ('canu', '2.2'),
     ('HMMER', '3.3.2'),
     ('MUMmer', '4.0.0beta2'),
-    ('pplacer', '1.1.alpha19', '', True),
+    ('pplacer', '1.1.alpha19', '', SYSTEM),
     ('Short-Pair', '20170125'),
     ('SAMtools', '1.14'),
     ('CompareM', '0.1.2'),
diff --git a/easybuild/easyconfigs/s/StringTie/StringTie-1.3.5-GCCcore-8.2.0.eb b/easybuild/easyconfigs/s/StringTie/StringTie-1.3.5-GCCcore-8.2.0.eb
index 9721dbb7e519..b360d49ed19a 100644
--- a/easybuild/easyconfigs/s/StringTie/StringTie-1.3.5-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/s/StringTie/StringTie-1.3.5-GCCcore-8.2.0.eb
@@ -14,7 +14,7 @@ source_urls = ['http://ccb.jhu.edu/software/%(namelower)s/dl/']
 sources = [SOURCELOWER_TAR_GZ]
 checksums = ['f16ec07d4869b7656bc1a9b6eb662fd9404c122d18431c845e93d810840c5db9']
 
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 dependencies = [
     ('zlib', '1.2.11'),
diff --git a/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-foss-2017b.eb b/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-foss-2017b.eb
index 309d66a48c7c..cd483fdf31eb 100644
--- a/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-foss-2017b.eb
+++ b/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-foss-2017b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('Python', '2.7.14'),
     ('Perl', '5.26.1'),
     ('Ruby', '2.4.2'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('SWIG', '3.0.12', '-Python-%(pyver)s'),
 ]
 
diff --git a/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-intel-2017b.eb b/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-intel-2017b.eb
index 8d399be63495..ca96dc353d4f 100644
--- a/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-intel-2017b.eb
+++ b/easybuild/easyconfigs/s/Subversion/Subversion-1.10.0-intel-2017b.eb
@@ -30,7 +30,7 @@ dependencies = [
     ('Python', '2.7.14'),
     ('Perl', '5.26.1'),
     ('Ruby', '2.5.0'),
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('SWIG', '3.0.12', '-Python-%(pyver)s'),
 ]
 
diff --git a/easybuild/easyconfigs/s/SuiteSparse/SuiteSparse-5.10.1-foss-2021a-METIS-5.1.0-CUDA-11.3.1.eb b/easybuild/easyconfigs/s/SuiteSparse/SuiteSparse-5.10.1-foss-2021a-METIS-5.1.0-CUDA-11.3.1.eb
index 2ef23ba8a82d..0b9443692f32 100644
--- a/easybuild/easyconfigs/s/SuiteSparse/SuiteSparse-5.10.1-foss-2021a-METIS-5.1.0-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/s/SuiteSparse/SuiteSparse-5.10.1-foss-2021a-METIS-5.1.0-CUDA-11.3.1.eb
@@ -21,7 +21,7 @@ builddependencies = [
 dependencies = [
     ('METIS', local_metis_ver),
     ('MPFR', '4.1.0'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 # default CUDA compute capabilities to use (override via --cuda-compute-capabilities)
diff --git a/easybuild/easyconfigs/s/Szip/Szip-2.1-GCCcore-5.4.0.eb b/easybuild/easyconfigs/s/Szip/Szip-2.1-GCCcore-5.4.0.eb
index d42e2e93387f..b69c7feaf2e8 100644
--- a/easybuild/easyconfigs/s/Szip/Szip-2.1-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/s/Szip/Szip-2.1-GCCcore-5.4.0.eb
@@ -15,7 +15,7 @@ checksums = ['a816d95d5662e8279625abdbea7d0e62157d7d1f028020b1075500bf483ed5ef']
 
 configopts = "--with-pic"
 
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ["lib/libsz.a", "lib/libsz.%s" % SHLIB_EXT] +
diff --git a/easybuild/easyconfigs/s/sbt/sbt-1.0.2-Java-1.8.0_152.eb b/easybuild/easyconfigs/s/sbt/sbt-1.0.2-Java-1.8.0_152.eb
index 09e6c9dafd76..8fa744e8aee9 100644
--- a/easybuild/easyconfigs/s/sbt/sbt-1.0.2-Java-1.8.0_152.eb
+++ b/easybuild/easyconfigs/s/sbt/sbt-1.0.2-Java-1.8.0_152.eb
@@ -13,7 +13,7 @@ source_urls = ['https://github.com/sbt/sbt/releases/download/v%(version)s']
 sources = [SOURCE_TGZ]
 checksums = ['c3f063d8122d87f0d80b25221d76b0a164e9247d35190f31ec360edcb4352ef0']
 
-dependencies = [('Java', '1.8.0_152', '', True)]
+dependencies = [('Java', '1.8.0_152', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['bin/sbt'],
diff --git a/easybuild/easyconfigs/s/shovill/shovill-0.9.0-foss-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/s/shovill/shovill-0.9.0-foss-2018a-Python-2.7.14.eb
index 86ecd27ae6a3..45fe90615536 100644
--- a/easybuild/easyconfigs/s/shovill/shovill-0.9.0-foss-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/s/shovill/shovill-0.9.0-foss-2018a-Python-2.7.14.eb
@@ -23,11 +23,11 @@ dependencies = [
     ('SKESA', '2.2'),
     ('MEGAHIT', '1.1.3', versionsuffix),
     ('KMC', '3.1.0'),
-    ('Pilon', '1.22', '-Java-1.8.0_162', True),
+    ('Pilon', '1.22', '-Java-1.8.0_162', SYSTEM),
     ('SPAdes', '3.12.0'),
     ('Lighter', '1.1.1'),
     ('FLASH', '1.2.11'),
-    ('Trimmomatic', '0.38', '-Java-1.8.0_162', True),
+    ('Trimmomatic', '0.38', '-Java-1.8.0_162', SYSTEM),
     ('Velvet', '1.2.10', '-mt-kmer_191'),
     ('pigz', '2.4'),
 ]
diff --git a/easybuild/easyconfigs/s/shovill/shovill-1.0.4-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/s/shovill/shovill-1.0.4-foss-2018b-Python-2.7.15.eb
index fed24b4cdcb4..b5a0a68a8c93 100644
--- a/easybuild/easyconfigs/s/shovill/shovill-1.0.4-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/s/shovill/shovill-1.0.4-foss-2018b-Python-2.7.15.eb
@@ -23,11 +23,11 @@ dependencies = [
     ('SKESA', '2.3.0'),
     ('MEGAHIT', '1.1.4', versionsuffix),
     ('KMC', '3.1.0'),
-    ('Pilon', '1.23', '-Java-1.8', True),
+    ('Pilon', '1.23', '-Java-1.8', SYSTEM),
     ('SPAdes', '3.13.0'),
     ('Lighter', '1.1.2'),
     ('FLASH', '1.2.11'),
-    ('Trimmomatic', '0.38', '-Java-1.8', True),
+    ('Trimmomatic', '0.38', '-Java-1.8', SYSTEM),
     ('Velvet', '1.2.10', '-mt-kmer_191'),
     ('pigz', '2.4'),
     ('samclip', '0.2', '-Perl-5.28.0'),
diff --git a/easybuild/easyconfigs/s/shovill/shovill-1.1.0-gompi-2021b.eb b/easybuild/easyconfigs/s/shovill/shovill-1.1.0-gompi-2021b.eb
index d71b5e0fb907..dfc9a1c39436 100644
--- a/easybuild/easyconfigs/s/shovill/shovill-1.1.0-gompi-2021b.eb
+++ b/easybuild/easyconfigs/s/shovill/shovill-1.1.0-gompi-2021b.eb
@@ -22,11 +22,11 @@ dependencies = [
     ('SKESA', '2.4.0', '_saute.1.3.0_1'),
     ('MEGAHIT', '1.2.9'),
     ('KMC', '3.2.1'),
-    ('Pilon', '1.23', '-Java-11', True),
+    ('Pilon', '1.23', '-Java-11', SYSTEM),
     ('SPAdes', '3.15.3'),
     ('Lighter', '1.1.2'),
     ('FLASH', '2.2.00'),
-    ('Trimmomatic', '0.39', '-Java-11', True),
+    ('Trimmomatic', '0.39', '-Java-11', SYSTEM),
     ('Velvet', '1.2.10', '-mt-kmer_191'),
     ('pigz', '2.6'),
     ('samclip', '0.4.0'),
diff --git a/easybuild/easyconfigs/s/smooth-topk/smooth-topk-1.0-20210817-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/s/smooth-topk/smooth-topk-1.0-20210817-foss-2021a-CUDA-11.3.1.eb
index ecbc8b58ffd1..9cdb80b108bc 100644
--- a/easybuild/easyconfigs/s/smooth-topk/smooth-topk-1.0-20210817-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/s/smooth-topk/smooth-topk-1.0-20210817-foss-2021a-CUDA-11.3.1.eb
@@ -11,7 +11,7 @@ description = "Smooth Loss Functions for Deep Top-k Classification"
 toolchain = {'name': 'foss', 'version': '2021a'}
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('tqdm', '4.61.2'),
     ('PyTorch', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/s/snippy/snippy-4.6.0-GCC-9.3.0-Java-13-Python-3.8.2.eb b/easybuild/easyconfigs/s/snippy/snippy-4.6.0-GCC-9.3.0-Java-13-Python-3.8.2.eb
index 3d829256a630..aba934682324 100644
--- a/easybuild/easyconfigs/s/snippy/snippy-4.6.0-GCC-9.3.0-Java-13-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/s/snippy/snippy-4.6.0-GCC-9.3.0-Java-13-Python-3.8.2.eb
@@ -21,7 +21,7 @@ sources = ['v%(version)s.tar.gz']
 checksums = ['7264e3819e249387effd3eba170ff49404b1cf7347dfa25944866f5aeb6b11c3']
 
 dependencies = [
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
     ('Python', '3.8.2'),
     ('Perl', '5.30.2'),
     ('BioPerl', '1.7.7'),
diff --git a/easybuild/easyconfigs/s/snpEff/snpEff-5.0-GCCcore-9.3.0-Java-13-Python-3.8.2.eb b/easybuild/easyconfigs/s/snpEff/snpEff-5.0-GCCcore-9.3.0-Java-13-Python-3.8.2.eb
index f38146086656..e05db5008e7e 100644
--- a/easybuild/easyconfigs/s/snpEff/snpEff-5.0-GCCcore-9.3.0-Java-13-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/s/snpEff/snpEff-5.0-GCCcore-9.3.0-Java-13-Python-3.8.2.eb
@@ -15,7 +15,7 @@ sources = ['%%(name)s_v%s_core.zip' % version.replace('.', '_')]
 checksums = ['2b177440eb4a2c3bbfc8f50d4adf9e405f3dcfc05a31a55c96f773f07832af34']
 
 dependencies = [
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
     ('Python', '3.8.2'),
     ('Perl', '5.30.2'),
 ]
diff --git a/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-10.2.0-Java-13.eb b/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-10.2.0-Java-13.eb
index cfde903143c9..2e5679be3cdb 100644
--- a/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-10.2.0-Java-13.eb
+++ b/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-10.2.0-Java-13.eb
@@ -15,7 +15,7 @@ sources = ['%%(name)s_v%s_core.zip' % version.replace('.', '_')]
 checksums = ['85d907b5dd9e9008a0cf245956e3c9077a31e45f21a1b580d9b98a53fd8dcb9d']
 
 dependencies = [
-    ('Java', '13', '', True),
+    ('Java', '13', '', SYSTEM),
     ('Python', '3.8.6'),
     ('Perl', '5.32.0'),
 ]
diff --git a/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-11.2.0-Java-11.eb b/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-11.2.0-Java-11.eb
index a7a8a7334f4b..3281c84b650c 100644
--- a/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-11.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/s/snpEff/snpEff-5.0e-GCCcore-11.2.0-Java-11.eb
@@ -17,7 +17,7 @@ checksums = ['85d907b5dd9e9008a0cf245956e3c9077a31e45f21a1b580d9b98a53fd8dcb9d']
 dependencies = [
     # ignore website claim that Java 12+ is required, nothing is compiled for
     # anything newer than Java 11
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Python', '3.9.6'),
     ('Perl', '5.34.0'),
 ]
diff --git a/easybuild/easyconfigs/t/THetA/THetA-0.7-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/t/THetA/THetA-0.7-foss-2018b-Python-2.7.15.eb
index 003a47f61ba5..bd37bacce14c 100644
--- a/easybuild/easyconfigs/t/THetA/THetA-0.7-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/t/THetA/THetA-0.7-foss-2018b-Python-2.7.15.eb
@@ -18,8 +18,8 @@ checksums = ['474452fa87a1ca0228137693bfede3200b91e4e166b2216c4bd24f8b270c1dea']
 dependencies = [
     ('Python', '2.7.15'),
     ('bnpy', '0.1.6', versionsuffix),
-    ('ant', '1.10.5', '-Java-1.8', True),  # (Optional) needed for preprocessing script
-    # ('MATLAB', '2018b', '', True),  # (Optional) provides interface to Matlab
+    ('ant', '1.10.5', '-Java-1.8', SYSTEM),  # (Optional) needed for preprocessing script
+    # ('MATLAB', '2018b', '', SYSTEM),  # (Optional) provides interface to Matlab
 ]
 
 cmds_map = [('', "ant")]
diff --git a/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-10.2.0.eb b/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-10.2.0.eb
index 003fb9008b09..fd542467800a 100644
--- a/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-10.2.0.eb
@@ -27,7 +27,7 @@ parallel = 1
 
 builddependencies = [
     ('binutils', '2.35'),
-    ('Pandoc', '2.10', '', True),
+    ('Pandoc', '2.10', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-8.3.0.eb b/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-8.3.0.eb
index 5675584ba3df..cbf5ee21bc6c 100644
--- a/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/t/TagDust/TagDust-2.33-GCCcore-8.3.0.eb
@@ -23,7 +23,7 @@ parallel = 1
 
 builddependencies = [
     ('binutils', '2.32'),
-    ('Pandoc', '2.10', '', True),
+    ('Pandoc', '2.10', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.3.1-fosscuda-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.3.1-fosscuda-2020a-Python-3.8.2.eb
index 5cae5dc8c13f..54fdbc449642 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.3.1-fosscuda-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.3.1-fosscuda-2020a-Python-3.8.2.eb
@@ -18,7 +18,7 @@ builddependencies = [
     ('pybind11', '2.4.3', versionsuffix),
 ]
 dependencies = [
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
     ('Python', '3.8.2'),
     ('h5py', '2.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.4.1-fosscuda-2020b.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.4.1-fosscuda-2020b.eb
index 0feb8006d4df..110b07df5a58 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.4.1-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.4.1-fosscuda-2020b.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('UnZip', '6.0'),
 ]
 dependencies = [
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
     ('Python', '3.8.6'),
     # Next 2 are for h5py
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.0-fosscuda-2020b.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.0-fosscuda-2020b.eb
index c1662ad3a3bf..b4daf67aaa3a 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.0-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.0-fosscuda-2020b.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('UnZip', '6.0'),
 ]
 dependencies = [
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('NCCL', '2.8.3', '-CUDA-%(cudaver)s'),
     ('Python', '3.8.6'),
     ('h5py', '3.1.0'),
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.3-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.3-foss-2021a-CUDA-11.3.1.eb
index 59a083f5333e..0ac39221678b 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.3-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.5.3-foss-2021a-CUDA-11.3.1.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('UnZip', '6.0'),
 ]
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('cuDNN', '8.2.1.32', versionsuffix, True),
     ('NCCL', '2.10.3', versionsuffix),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.6.0-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.6.0-foss-2021a-CUDA-11.3.1.eb
index bb846c638fca..8c4c862c9221 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.6.0-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.6.0-foss-2021a-CUDA-11.3.1.eb
@@ -19,7 +19,7 @@ builddependencies = [
     ('UnZip', '6.0'),
 ]
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('cuDNN', '8.2.1.32', versionsuffix, True),
     ('NCCL', '2.10.3', versionsuffix),
     ('Python', '3.9.5'),
diff --git a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.7.1-foss-2021b-CUDA-11.4.1.eb b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.7.1-foss-2021b-CUDA-11.4.1.eb
index 1cd3c17f6d07..24cafa174385 100644
--- a/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.7.1-foss-2021b-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/t/TensorFlow/TensorFlow-2.7.1-foss-2021b-CUDA-11.4.1.eb
@@ -20,7 +20,7 @@ builddependencies = [
     ('LLVM', '12.0.1'),  # for debugging with llvm-symbolizer, to be removed
 ]
 dependencies = [
-    ('CUDA', '11.4.1', '', True),
+    ('CUDA', '11.4.1', '', SYSTEM),
     ('cuDNN', '8.2.2.26', versionsuffix, True),
     ('NCCL', '2.10.3', versionsuffix),
     ('Python', '3.9.6'),
diff --git a/easybuild/easyconfigs/t/Theano/Theano-1.1.2-fosscuda-2020b-PyMC.eb b/easybuild/easyconfigs/t/Theano/Theano-1.1.2-fosscuda-2020b-PyMC.eb
index c7c4aba1c1b1..7acce00ef7d3 100644
--- a/easybuild/easyconfigs/t/Theano/Theano-1.1.2-fosscuda-2020b-PyMC.eb
+++ b/easybuild/easyconfigs/t/Theano/Theano-1.1.2-fosscuda-2020b-PyMC.eb
@@ -19,7 +19,7 @@ checksums = ['5da6c2242ea72a991c8446d7fe7d35189ea346ef7d024c890397011114bf10fc']
 dependencies = [
     ('Python', '3.8.6'),
     ('libgpuarray', '0.7.6'),
-    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', True),
+    ('cuDNN', '8.0.4.30', '-CUDA-%(cudaver)s', SYSTEM),
     ('SciPy-bundle', '2020.11'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Tracer/Tracer-1.7.1-GCCcore-8.2.0.eb b/easybuild/easyconfigs/t/Tracer/Tracer-1.7.1-GCCcore-8.2.0.eb
index ee85d771a643..0cf3c7d492b7 100644
--- a/easybuild/easyconfigs/t/Tracer/Tracer-1.7.1-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/t/Tracer/Tracer-1.7.1-GCCcore-8.2.0.eb
@@ -18,7 +18,7 @@ sources = [{'download_filename': '%(name)s_v%(version)s.tgz', 'filename': SOURCE
 checksums = ['200d7ffa1e48994b71245994e299847ac2be72d3d5c37d9048418557e1d8c12e']
 
 dependencies = [
-    ('Java', '1.8', '', True),
+    ('Java', '1.8', '', SYSTEM),
     ('Mesa', '19.0.1'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.4.4-intel-2017a.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.4.4-intel-2017a.eb
index 934d2bd4129f..5dd29ffb263e 100755
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.4.4-intel-2017a.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.4.4-intel-2017a.eb
@@ -22,7 +22,7 @@ install_cmd = "cp -a * %(installdir)s && chmod +x %(installdir)s/%(namelower)s &
 install_cmd += "sed -i '1 i#!/usr/bin/env perl' %(installdir)s/%(namelower)s"
 
 dependencies = [
-    ('FastQC', '0.11.5', '-Java-1.8.0_144', True),
+    ('FastQC', '0.11.5', '-Java-1.8.0_144', SYSTEM),
     ('cutadapt', '1.14', '-Python-2.7.13'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-foss-2018b.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-foss-2018b.eb
index 751ec831e27e..939e4aa653a2 100755
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-foss-2018b.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-foss-2018b.eb
@@ -15,7 +15,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['9a7966bcfdea5d8c4f14c669904fb44693ac5d9392caa4d49dd11254a0a6753d']
 
 dependencies = [
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', '-Python-3.6.6'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-intel-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-intel-2018b-Python-3.6.6.eb
index 54a9e8723f48..9fffbfd9a38a 100755
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-intel-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.5.0-intel-2018b-Python-3.6.6.eb
@@ -16,7 +16,7 @@ sources = ['%(version)s.tar.gz']
 checksums = ['9a7966bcfdea5d8c4f14c669904fb44693ac5d9392caa4d49dd11254a0a6753d']
 
 dependencies = [
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-2.7.15.eb
index e30697fa9a2a..50baaf11de7b 100755
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-2.7.15.eb
@@ -17,7 +17,7 @@ checksums = ['f374dfa4c94e2ad50c63276dda0f341fd95b29cb1d5a0e2ad56e8b0168b758ec']
 
 dependencies = [
     ('Python', '2.7.15'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix),
     ('Perl', '5.28.0'),
 ]
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-3.6.6.eb
index f03c582405b1..d4df9526da5c 100755
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.0-foss-2018b-Python-3.6.6.eb
@@ -18,7 +18,7 @@ checksums = ['f374dfa4c94e2ad50c63276dda0f341fd95b29cb1d5a0e2ad56e8b0168b758ec']
 dependencies = [
     ('Python', '3.6.6'),  # multi-core support requires Python 3.x + pigz
     ('pigz', '2.4'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix),
     ('Perl', '5.28.0'),
 ]
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-2.7.15.eb
index 96d93d982ce3..aabeeaa87aa0 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-2.7.15.eb
@@ -22,7 +22,7 @@ checksums = ['658578c29d007fe66f9ab49608442be703a6fcf535db06eb82659c7edccb62b0']
 dependencies = [
     ('Python', '2.7.15'),
     ('Perl', '5.28.0'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix)
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-3.6.6.eb
index 07037434493b..7a5caa1e5a32 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.1-foss-2018b-Python-3.6.6.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('Python', '3.6.6'),  # multi-core support requires Python 3.x + pigz
     ('pigz', '2.4'),
     ('Perl', '5.28.0'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix)
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-GCCcore-8.2.0-Java-11.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-GCCcore-8.2.0-Java-11.eb
index 2cd8ff638671..43cccd80beb7 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-GCCcore-8.2.0-Java-11.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-GCCcore-8.2.0-Java-11.eb
@@ -28,10 +28,10 @@ multi_deps = {'Python': ['3.7.2', '2.7.15']}
 builddependencies = [('binutils', '2.31.1')]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pigz', '2.4'),
     ('Perl', '5.28.1'),
-    ('FastQC', '0.11.8', '-Java-11', True),
+    ('FastQC', '0.11.8', '-Java-11', SYSTEM),
     ('cutadapt', '1.18'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-2.7.15.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-2.7.15.eb
index cf2e0c9f7dce..a8df5a83fbe7 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-2.7.15.eb
@@ -22,7 +22,7 @@ checksums = ['c50b841bdc294a6cdc6a27fb7bfbed1973541d20a68a4708584b817c58b3f376']
 dependencies = [
     ('Python', '2.7.15'),
     ('Perl', '5.28.0'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix)
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-3.6.6.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-3.6.6.eb
index b4fc90cc5700..d6fb92d2cb47 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-3.6.6.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.2-foss-2018b-Python-3.6.6.eb
@@ -23,7 +23,7 @@ dependencies = [
     ('Python', '3.6.6'),  # multi-core support requires Python 3.x + pigz
     ('pigz', '2.4'),
     ('Perl', '5.28.0'),
-    ('FastQC', '0.11.8', '-Java-1.8', True),
+    ('FastQC', '0.11.8', '-Java-1.8', SYSTEM),
     ('cutadapt', '1.18', versionsuffix)
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.5-GCCcore-8.3.0-Java-11-Python-3.7.4.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.5-GCCcore-8.3.0-Java-11-Python-3.7.4.eb
index b7d71152b881..e3c7224c9f59 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.5-GCCcore-8.3.0-Java-11-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.5-GCCcore-8.3.0-Java-11-Python-3.7.4.eb
@@ -27,10 +27,10 @@ builddependencies = [('binutils', '2.32')]
 
 dependencies = [
     ('Python', '3.7.4'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pigz', '2.4'),
     ('Perl', '5.30.0'),
-    ('FastQC', '0.11.9', '-Java-%(javaver)s', True),
+    ('FastQC', '0.11.9', '-Java-%(javaver)s', SYSTEM),
     ('cutadapt', '2.7', '-Python-%(pyver)s'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCC-10.2.0-Python-2.7.18.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCC-10.2.0-Python-2.7.18.eb
index add75646761e..36e734546521 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCC-10.2.0-Python-2.7.18.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCC-10.2.0-Python-2.7.18.eb
@@ -25,10 +25,10 @@ builddependencies = [('binutils', '2.35')]
 
 dependencies = [
     ('Python', '2.7.18'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pigz', '2.6'),
     ('Perl', '5.32.0'),
-    ('FastQC', '0.11.9', '-Java-%(javaver)s', True),
+    ('FastQC', '0.11.9', '-Java-%(javaver)s', SYSTEM),
     ('cutadapt', '1.18', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
index e55fe4ccfae5..48d1f2c85a26 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.6-GCCcore-9.3.0-Python-3.8.2.eb
@@ -27,10 +27,10 @@ builddependencies = [('binutils', '2.34')]
 
 dependencies = [
     ('Python', '3.8.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pigz', '2.4'),
     ('Perl', '5.30.2'),
-    ('FastQC', '0.11.9', '-Java-%(javaver)s', True),
+    ('FastQC', '0.11.9', '-Java-%(javaver)s', SYSTEM),
     ('cutadapt', '2.10', '-Python-%(pyver)s'),
 ]
 
diff --git a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.7-GCCcore-10.3.0.eb b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.7-GCCcore-10.3.0.eb
index cf5350b94a49..495deb9a976b 100644
--- a/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.7-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/t/Trim_Galore/Trim_Galore-0.6.7-GCCcore-10.3.0.eb
@@ -25,11 +25,11 @@ checksums = [
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('pigz', '2.6'),
     ('Perl', '5.32.1'),
     ('cutadapt', '3.4'),
-    ('FastQC', '0.11.9', '-Java-%(javaver)s', True),
+    ('FastQC', '0.11.9', '-Java-%(javaver)s', SYSTEM),
 ]
 
 postinstallcmds = [
diff --git a/easybuild/easyconfigs/t/Trimmomatic/Trimmomatic-0.38-Java-1.8.eb b/easybuild/easyconfigs/t/Trimmomatic/Trimmomatic-0.38-Java-1.8.eb
index da61b4d7b337..80d1c83a61fa 100644
--- a/easybuild/easyconfigs/t/Trimmomatic/Trimmomatic-0.38-Java-1.8.eb
+++ b/easybuild/easyconfigs/t/Trimmomatic/Trimmomatic-0.38-Java-1.8.eb
@@ -20,7 +20,7 @@ source_urls = ['http://www.usadellab.org/cms/uploads/supplementary/Trimmomatic/'
 sources = [SOURCE_ZIP]
 checksums = ['d428af42b6c400a2e7ee5e6b4cab490eddc621f949b086bd7dddb698dcf1647c']
 
-dependencies = [('Java', '1.8', '', True)]
+dependencies = [('Java', '1.8', '', SYSTEM)]
 
 modloadmsg = """To execute Trimmomatic run: java -jar $EBROOTTRIMMOMATIC/trimmomatic-%(version)s.jar\n"""
 
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.10.0-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.10.0-foss-2019b-Python-3.7.4.eb
index 009b1080766b..5f6beb23aa6c 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.10.0-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.10.0-foss-2019b-Python-3.7.4.eb
@@ -30,8 +30,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('Perl', '5.30.0'),
     ('Python', '3.7.4'),
     ('SciPy-bundle', '2019.10', versionsuffix),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.4.0-foss-2017a.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.4.0-foss-2017a.eb
index 98a63c78c787..044419c7acea 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.4.0-foss-2017a.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.4.0-foss-2017a.eb
@@ -25,8 +25,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_121', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_121', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('Bowtie', '1.1.2'),
     ('Bowtie2', '2.3.2'),
     ('ncurses', '6.0'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017a.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017a.eb
index b081019d4307..834721f2ac79 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017a.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017a.eb
@@ -28,8 +28,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_152', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('Bowtie', '1.1.2'),
     ('Bowtie2', '2.3.2'),
     ('ncurses', '6.0'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017b.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017b.eb
index 75a7be3a9afc..293312471797 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017b.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.5.1-intel-2017b.eb
@@ -28,8 +28,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '1.8.0_152', '', True),
-    ('ant', '1.10.1', '-Java-%(javaver)s', True),
+    ('Java', '1.8.0_152', '', SYSTEM),
+    ('ant', '1.10.1', '-Java-%(javaver)s', SYSTEM),
     ('Bowtie', '1.2.2'),
     ('Bowtie2', '2.3.4'),
     ('ncurses', '6.0'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.4-foss-2018b.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.4-foss-2018b.eb
index 655df5ae21af..2f8bbf8e3f6e 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.4-foss-2018b.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.4-foss-2018b.eb
@@ -19,8 +19,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.5', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.5', '-Java-%(javaver)s', SYSTEM),
     ('Bowtie', '1.2.2'),
     ('Bowtie2', '2.3.4.2'),
     ('ncurses', '6.1'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-GCC-8.3.0-Java-11.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-GCC-8.3.0-Java-11.eb
index aaf6957b7ae8..8d8703a5561f 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-GCC-8.3.0-Java-11.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-GCC-8.3.0-Java-11.eb
@@ -26,7 +26,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('ant', '1.10.7', versionsuffix, True),
     ('Bowtie', '1.2.3'),
     ('Bowtie2', '2.3.5.1'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
index eeef16155fba..654e032e6c6f 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.8.5-iccifort-2019.1.144-GCC-8.2.0-2.31.1.eb
@@ -25,8 +25,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '1.8', '', True),
-    ('ant', '1.10.5', '-Java-%(javaver)s', True),
+    ('Java', '1.8', '', SYSTEM),
+    ('ant', '1.10.5', '-Java-%(javaver)s', SYSTEM),
     ('Bowtie', '1.2.3'),
     ('Bowtie2', '2.3.5.1'),
     ('ncurses', '6.1'),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-2.7.16.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-2.7.16.eb
index 706bcf94ecb6..3ca740f8aab8 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-2.7.16.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-2.7.16.eb
@@ -30,8 +30,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('Perl', '5.30.0'),
     ('Python', '2.7.16'),
     ('SciPy-bundle', '2019.10', versionsuffix),
diff --git a/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-3.7.4.eb
index 92750de5d52b..923a3cd1f942 100644
--- a/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/t/Trinity/Trinity-2.9.1-foss-2019b-Python-3.7.4.eb
@@ -30,8 +30,8 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('Java', '11', '', True),
-    ('ant', '1.10.7', '-Java-%(javaver)s', True),
+    ('Java', '11', '', SYSTEM),
+    ('ant', '1.10.7', '-Java-%(javaver)s', SYSTEM),
     ('Perl', '5.30.0'),
     ('Python', '3.7.4'),
     ('SciPy-bundle', '2019.10', versionsuffix),
diff --git a/easybuild/easyconfigs/t/tcsh/tcsh-6.20.00-GCCcore-6.4.0.eb b/easybuild/easyconfigs/t/tcsh/tcsh-6.20.00-GCCcore-6.4.0.eb
index fcc5a44425a7..5586784fcf25 100644
--- a/easybuild/easyconfigs/t/tcsh/tcsh-6.20.00-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/t/tcsh/tcsh-6.20.00-GCCcore-6.4.0.eb
@@ -30,7 +30,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['b89de7064ab54dac454a266cfe5d8bf66940cb5ed048d0c30674ea62e7ecef9d']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.28', '', True)]
+builddependencies = [('binutils', '2.28', '', SYSTEM)]
 
 dependencies = [('ncurses', '6.0')]
 
diff --git a/easybuild/easyconfigs/t/topaz/topaz-0.2.5-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/t/topaz/topaz-0.2.5-foss-2021a-CUDA-11.3.1.eb
index 14ac4f4f602e..6e1e1c39fdf0 100644
--- a/easybuild/easyconfigs/t/topaz/topaz-0.2.5-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/t/topaz/topaz-0.2.5-foss-2021a-CUDA-11.3.1.eb
@@ -18,7 +18,7 @@ dependencies = [
     ('PyTorch', '1.10.0', versionsuffix),
     ('torchvision', '0.11.1', versionsuffix),
     ('scikit-learn', '0.24.2'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 use_pip = True
diff --git a/easybuild/easyconfigs/t/torchvision/torchvision-0.11.1-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/t/torchvision/torchvision-0.11.1-foss-2021a-CUDA-11.3.1.eb
index 7e64e72a452b..d3755b1e9fc1 100644
--- a/easybuild/easyconfigs/t/torchvision/torchvision-0.11.1-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/t/torchvision/torchvision-0.11.1-foss-2021a-CUDA-11.3.1.eb
@@ -17,7 +17,7 @@ dependencies = [
     ('Python', '3.9.5'),
     ('Pillow-SIMD', '8.2.0'),
     ('PyTorch', '1.10.0', '-CUDA-%(cudaver)s'),
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
 ]
 
 # Defaults. Can be changed with --cuda-compute-capabilities
diff --git a/easybuild/easyconfigs/t/torchvision/torchvision-0.11.3-foss-2021a-CUDA-11.3.1.eb b/easybuild/easyconfigs/t/torchvision/torchvision-0.11.3-foss-2021a-CUDA-11.3.1.eb
index 3eb21ffbed37..7c591865f3a2 100644
--- a/easybuild/easyconfigs/t/torchvision/torchvision-0.11.3-foss-2021a-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/t/torchvision/torchvision-0.11.3-foss-2021a-CUDA-11.3.1.eb
@@ -14,7 +14,7 @@ checksums = ['b4c51d27589783e6e6941ecaa67b55f6f41633874ec37f80b64a0c92c3196e0c']
 builddependencies = [('CMake', '3.20.1')]
 
 dependencies = [
-    ('CUDA', '11.3.1', '', True),
+    ('CUDA', '11.3.1', '', SYSTEM),
     ('Python', '3.9.5'),
     ('Pillow-SIMD', '8.2.0'),
     ('PyTorch', '1.10.0', versionsuffix),
diff --git a/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-10.3.0.eb
index ebf9a1d24b8c..41eb21d17676 100644
--- a/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-10.3.0.eb
@@ -19,7 +19,7 @@ source_urls = [GITHUB_LOWER_SOURCE]
 sources = ['v%(version)s.tar.gz']
 checksums = ['cb8110ca24433f85c33797b930fa10fe833fa677825103d6e7f81dd7551b9b4e']
 
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 start_dir = 'source'
 
 files_to_copy = [(['trimal', 'readal', 'statal'], 'bin')]
diff --git a/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-9.3.0.eb b/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-9.3.0.eb
index a509e00b02ee..52c4b51c8b16 100644
--- a/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/t/trimAl/trimAl-1.4.1-GCCcore-9.3.0.eb
@@ -16,7 +16,7 @@ github_account = 'scapella'
 source_urls = [GITHUB_LOWER_SOURCE]
 sources = ['v%(version)s.tar.gz']
 checksums = ['cb8110ca24433f85c33797b930fa10fe833fa677825103d6e7f81dd7551b9b4e']
-builddependencies = [('binutils', '2.34', '', True)]
+builddependencies = [('binutils', '2.34', '', SYSTEM)]
 start_dir = 'source'
 
 files_to_copy = [(['trimal', 'readal', 'statal'], 'bin')]
diff --git a/easybuild/easyconfigs/u/UCC-CUDA/UCC-CUDA-1.0.0-GCCcore-11.3.0-CUDA-11.7.0.eb b/easybuild/easyconfigs/u/UCC-CUDA/UCC-CUDA-1.0.0-GCCcore-11.3.0-CUDA-11.7.0.eb
index bf163fd46555..e213c78d3b77 100644
--- a/easybuild/easyconfigs/u/UCC-CUDA/UCC-CUDA-1.0.0-GCCcore-11.3.0-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/u/UCC-CUDA/UCC-CUDA-1.0.0-GCCcore-11.3.0-CUDA-11.7.0.eb
@@ -33,7 +33,7 @@ builddependencies = [
 
 dependencies = [
     ('UCC', '1.0.0'),
-    ('CUDA',  '11.7.0', '', True),
+    ('CUDA',  '11.7.0', '', SYSTEM),
     ('UCX-CUDA', '1.12.1', '-CUDA-%(cudaver)s'),
     ('NCCL', '2.12.12', '-CUDA-%(cudaver)s'),
 ]
diff --git a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.10.0-GCCcore-10.3.0-CUDA-11.3.1.eb b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.10.0-GCCcore-10.3.0-CUDA-11.3.1.eb
index 67d9cdb0044d..70a85299c29b 100644
--- a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.10.0-GCCcore-10.3.0-CUDA-11.3.1.eb
+++ b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.10.0-GCCcore-10.3.0-CUDA-11.3.1.eb
@@ -35,7 +35,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.11'),
     ('UCX', version),
-    ('CUDA',  '11.3.1', '', True),
+    ('CUDA',  '11.3.1', '', SYSTEM),
     ('GDRCopy', '2.2'),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.0-GCCcore-11.2.0-CUDA-11.4.1.eb b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.0-GCCcore-11.2.0-CUDA-11.4.1.eb
index 1dad569119fb..ce3211904db0 100644
--- a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.0-GCCcore-11.2.0-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.0-GCCcore-11.2.0-CUDA-11.4.1.eb
@@ -35,7 +35,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.11'),
     ('UCX', version),
-    ('CUDA',  '11.4.1', '', True),
+    ('CUDA',  '11.4.1', '', SYSTEM),
     ('GDRCopy', '2.3'),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.2-GCCcore-11.2.0-CUDA-11.4.1.eb b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.2-GCCcore-11.2.0-CUDA-11.4.1.eb
index bc3201ec6886..d5f4602d19fa 100644
--- a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.2-GCCcore-11.2.0-CUDA-11.4.1.eb
+++ b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.11.2-GCCcore-11.2.0-CUDA-11.4.1.eb
@@ -35,7 +35,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.11'),
     ('UCX', version),
-    ('CUDA',  '11.4.1', '', True),
+    ('CUDA',  '11.4.1', '', SYSTEM),
     ('GDRCopy', '2.3'),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.12.1-GCCcore-11.3.0-CUDA-11.7.0.eb b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.12.1-GCCcore-11.3.0-CUDA-11.7.0.eb
index 7bf9d3c8710a..0fb175ca066e 100644
--- a/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.12.1-GCCcore-11.3.0-CUDA-11.7.0.eb
+++ b/easybuild/easyconfigs/u/UCX-CUDA/UCX-CUDA-1.12.1-GCCcore-11.3.0-CUDA-11.7.0.eb
@@ -35,7 +35,7 @@ builddependencies = [
 dependencies = [
     ('zlib', '1.2.12'),
     ('UCX', version),
-    ('CUDA',  '11.7.0', '', True),
+    ('CUDA',  '11.7.0', '', SYSTEM),
     ('GDRCopy', '2.3'),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX/UCX-1.8.0-GCCcore-9.3.0-CUDA-11.0.2.eb b/easybuild/easyconfigs/u/UCX/UCX-1.8.0-GCCcore-9.3.0-CUDA-11.0.2.eb
index cc2d5938c65a..bfafd2ff9cd9 100644
--- a/easybuild/easyconfigs/u/UCX/UCX-1.8.0-GCCcore-9.3.0-CUDA-11.0.2.eb
+++ b/easybuild/easyconfigs/u/UCX/UCX-1.8.0-GCCcore-9.3.0-CUDA-11.0.2.eb
@@ -38,7 +38,7 @@ osdependencies = [OS_PKG_IBVERBS_DEV]
 
 dependencies = [
     ('numactl', '2.0.13'),
-    ('CUDAcore', local_cudaversion, '', True),
+    ('CUDAcore', local_cudaversion, '', SYSTEM),
     ('GDRCopy', '2.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.1.1.eb b/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.1.1.eb
index 48c65be29459..4f58f9acc83b 100644
--- a/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.1.1.eb
+++ b/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.1.1.eb
@@ -30,7 +30,7 @@ osdependencies = [OS_PKG_IBVERBS_DEV]
 
 dependencies = [
     ('numactl', '2.0.13'),
-    ('CUDAcore', local_cudaversion, '', True),
+    ('CUDAcore', local_cudaversion, '', SYSTEM),
     ('GDRCopy', '2.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.2.1.eb b/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.2.1.eb
index fd3d6e7b5dcf..11fabfc2ea78 100644
--- a/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.2.1.eb
+++ b/easybuild/easyconfigs/u/UCX/UCX-1.9.0-GCCcore-10.2.0-CUDA-11.2.1.eb
@@ -30,7 +30,7 @@ osdependencies = [OS_PKG_IBVERBS_DEV]
 
 dependencies = [
     ('numactl', '2.0.13'),
-    ('CUDAcore', local_cudaversion, '', True),
+    ('CUDAcore', local_cudaversion, '', SYSTEM),
     ('GDRCopy', '2.1', versionsuffix),
 ]
 
diff --git a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.7-foss-2019a-Python-3.7.2.eb b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.7-foss-2019a-Python-3.7.2.eb
index 890acbbf6f46..a83700d58cd4 100644
--- a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.7-foss-2019a-Python-3.7.2.eb
+++ b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.7-foss-2019a-Python-3.7.2.eb
@@ -17,12 +17,12 @@ checksums = ['a8cf65e46dc2694b0fbd4e9190c73a1f300921457aadfab27a1792b785620d63']
 
 dependencies = [
     ('Python', '3.7.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bowtie2', '2.3.5.1'),
     ('SAMtools', '1.9'),
     ('SPAdes', '3.13.1'),
     ('Racon', '1.3.2'),
-    ('Pilon', '1.23', '-Java-%(javaver)s', True),
+    ('Pilon', '1.23', '-Java-%(javaver)s', SYSTEM),
     ('BLAST+', '2.9.0'),
 ]
 
diff --git a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.8-gompi-2020a-Python-3.8.2.eb b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.8-gompi-2020a-Python-3.8.2.eb
index 70ef7ebfed19..ae461e506cd8 100644
--- a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.8-gompi-2020a-Python-3.8.2.eb
+++ b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.8-gompi-2020a-Python-3.8.2.eb
@@ -17,12 +17,12 @@ checksums = ['e948871e4de9db5964c9ca6f8f877c3cbe6a46f62052dfab52ffe0f45bbbd203']
 
 dependencies = [
     ('Python', '3.8.2'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bowtie2', '2.4.1'),
     ('SAMtools', '1.10'),
     ('SPAdes', '3.14.1', versionsuffix),
     ('Racon', '1.4.13'),
-    ('Pilon', '1.23', '-Java-%(javaver)s', True),
+    ('Pilon', '1.23', '-Java-%(javaver)s', SYSTEM),
     ('BLAST+', '2.10.1'),
 ]
 
diff --git a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.9-gompi-2021a.eb b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.9-gompi-2021a.eb
index 2e9b8f68fe00..1ca53bc8f780 100644
--- a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.9-gompi-2021a.eb
+++ b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.4.9-gompi-2021a.eb
@@ -16,12 +16,12 @@ checksums = ['84bea8f3e8f99a1e63e5230ffe474a696db8caa67569c3a96ae12906d32a35eb']
 
 dependencies = [
     ('Python', '3.9.5'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bowtie2', '2.4.4'),
     ('SAMtools', '1.13'),
     ('SPAdes', '3.13.0'),
     ('Racon', '1.4.21'),
-    ('Pilon', '1.23', '-Java-%(javaver)s', True),
+    ('Pilon', '1.23', '-Java-%(javaver)s', SYSTEM),
     ('BLAST+', '2.11.0'),
 ]
 
diff --git a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.5.0-gompi-2021b.eb b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.5.0-gompi-2021b.eb
index 712952beb6f3..3fc79ebf2dbb 100644
--- a/easybuild/easyconfigs/u/Unicycler/Unicycler-0.5.0-gompi-2021b.eb
+++ b/easybuild/easyconfigs/u/Unicycler/Unicycler-0.5.0-gompi-2021b.eb
@@ -17,12 +17,12 @@ checksums = ['84a8709c9f2e624225410af702d779ffb0cb06f7c22c20e1f01b989945e08a47']
 
 dependencies = [
     ('Python', '3.9.6'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('Bowtie2', '2.4.4'),
     ('SAMtools', '1.14'),
     ('SPAdes', '3.15.3'),
     ('Racon', '1.5.0'),
-    ('Pilon', '1.23', '-Java-%(javaver)s', True),
+    ('Pilon', '1.23', '-Java-%(javaver)s', SYSTEM),
     ('BLAST+', '2.12.0'),
 ]
 
diff --git a/easybuild/easyconfigs/u/units/units-2.19-GCCcore-8.2.0.eb b/easybuild/easyconfigs/u/units/units-2.19-GCCcore-8.2.0.eb
index 72f4c73aa6c5..d86c35faedf6 100644
--- a/easybuild/easyconfigs/u/units/units-2.19-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/u/units/units-2.19-GCCcore-8.2.0.eb
@@ -17,7 +17,7 @@ checksums = ['4262136bdfc152b63ff5a9b93a7d80ce18b5e8bebdcffddc932dda769e306556']
 
 builddependencies = [
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.31.1', '', True),
+    ('binutils', '2.31.1', '', SYSTEM),
 ]
 
 
diff --git a/easybuild/easyconfigs/v/VMD/VMD-1.9.4a43-fosscuda-2019b-Python-3.7.4.eb b/easybuild/easyconfigs/v/VMD/VMD-1.9.4a43-fosscuda-2019b-Python-3.7.4.eb
index 5c2bcb96f52f..331d66698e0e 100644
--- a/easybuild/easyconfigs/v/VMD/VMD-1.9.4a43-fosscuda-2019b-Python-3.7.4.eb
+++ b/easybuild/easyconfigs/v/VMD/VMD-1.9.4a43-fosscuda-2019b-Python-3.7.4.eb
@@ -54,7 +54,7 @@ dependencies = [
     ('FFmpeg', '4.2.1'),
     ('ImageMagick', '7.0.9-5'),
     ('ACTC', '1.1'),
-    ('OptiX', '6.5.0', '', True),
+    ('OptiX', '6.5.0', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('libpng', '1.6.37'),
 ]
diff --git a/easybuild/easyconfigs/v/VMD/VMD-1.9.4a51-fosscuda-2020b.eb b/easybuild/easyconfigs/v/VMD/VMD-1.9.4a51-fosscuda-2020b.eb
index 854dade5cbed..0ad4daad390f 100644
--- a/easybuild/easyconfigs/v/VMD/VMD-1.9.4a51-fosscuda-2020b.eb
+++ b/easybuild/easyconfigs/v/VMD/VMD-1.9.4a51-fosscuda-2020b.eb
@@ -52,7 +52,7 @@ dependencies = [
     ('FFmpeg', '4.3.1'),
     ('ImageMagick', '7.0.10-35'),
     ('ACTC', '1.1'),
-    ('OptiX', '6.5.0', '', True),
+    ('OptiX', '6.5.0', '', SYSTEM),
     ('zlib', '1.2.11'),
     ('libpng', '1.6.37'),
     ('POV-Ray', '3.7.0.8'),
diff --git a/easybuild/easyconfigs/v/Virtuoso-opensource/Virtuoso-opensource-7.2.6.1-GCC-10.3.0.eb b/easybuild/easyconfigs/v/Virtuoso-opensource/Virtuoso-opensource-7.2.6.1-GCC-10.3.0.eb
index 6b38503aeb73..01fc5ff1dce1 100644
--- a/easybuild/easyconfigs/v/Virtuoso-opensource/Virtuoso-opensource-7.2.6.1-GCC-10.3.0.eb
+++ b/easybuild/easyconfigs/v/Virtuoso-opensource/Virtuoso-opensource-7.2.6.1-GCC-10.3.0.eb
@@ -30,7 +30,7 @@ builddependencies = [
 ]
 
 dependencies = [
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     ('libreadline', '8.1'),
 ]
 
diff --git a/easybuild/easyconfigs/w/WCT/WCT-4.6.0-Java-11.eb b/easybuild/easyconfigs/w/WCT/WCT-4.6.0-Java-11.eb
index a889d75fa0b0..0b5db53df8af 100644
--- a/easybuild/easyconfigs/w/WCT/WCT-4.6.0-Java-11.eb
+++ b/easybuild/easyconfigs/w/WCT/WCT-4.6.0-Java-11.eb
@@ -22,7 +22,7 @@ source_urls = ['https://www.ncdc.noaa.gov/wct/app/dist/']
 sources = ['%(namelower)s-%(version)s.zip']
 checksums = ['951ba0137582d2cd33e18ec61e1bb63c8f775b4ddf23bb21b4784b7ef5d28aad']
 
-dependencies = [('Java', '11', '', True)]
+dependencies = [('Java', '11', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': [],
diff --git a/easybuild/easyconfigs/w/wget/wget-1.21.1-GCCcore-10.3.0.eb b/easybuild/easyconfigs/w/wget/wget-1.21.1-GCCcore-10.3.0.eb
index c6ac6a933210..f9313fcbc6e6 100644
--- a/easybuild/easyconfigs/w/wget/wget-1.21.1-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/w/wget/wget-1.21.1-GCCcore-10.3.0.eb
@@ -26,7 +26,7 @@ dependencies = [
     ('PCRE', '8.44'),
     ('libidn2', '2.3.0'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     # OS dependency should be preferred if the os version is more recent then this version,
     # it's nice to have an up to date gnutls for security reasons
     # ('GnuTLS', '3.7.1'),
diff --git a/easybuild/easyconfigs/w/wget/wget-1.21.2-GCCcore-11.2.0.eb b/easybuild/easyconfigs/w/wget/wget-1.21.2-GCCcore-11.2.0.eb
index 3c7a5559b3a7..3e0a4fdaa717 100644
--- a/easybuild/easyconfigs/w/wget/wget-1.21.2-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/w/wget/wget-1.21.2-GCCcore-11.2.0.eb
@@ -26,7 +26,7 @@ dependencies = [
     ('PCRE', '8.45'),
     ('libidn2', '2.3.2'),
     ('zlib', '1.2.11'),
-    ('OpenSSL', '1.1', '', True),
+    ('OpenSSL', '1.1', '', SYSTEM),
     # OS dependency should be preferred if the os version is more recent then this version,
     # it's nice to have an up to date gnutls for security reasons
     # ('GnuTLS', '3.7.1'),
diff --git a/easybuild/easyconfigs/x/X11/X11-20160819-GCCcore-5.4.0.eb b/easybuild/easyconfigs/x/X11/X11-20160819-GCCcore-5.4.0.eb
index 57e58e0097fa..7732b3063a74 100644
--- a/easybuild/easyconfigs/x/X11/X11-20160819-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/x/X11/X11-20160819-GCCcore-5.4.0.eb
@@ -20,7 +20,7 @@ source_urls = [
 
 builddependencies = [
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
     ('Autotools', '20150215'),
     ('Bison', '3.0.4'),
     ('gettext', '0.19.8'),
diff --git a/easybuild/easyconfigs/x/X11/X11-20170129-GCCcore-6.3.0.eb b/easybuild/easyconfigs/x/X11/X11-20170129-GCCcore-6.3.0.eb
index f7fe477cb1bf..c7c2384daaac 100644
--- a/easybuild/easyconfigs/x/X11/X11-20170129-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/x/X11/X11-20170129-GCCcore-6.3.0.eb
@@ -26,7 +26,7 @@ dependencies = [
 ]
 builddependencies = [
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
     ('Autotools', '20150215'),
     ('Bison', '3.0.4'),
     ('gettext', '0.19.8.1'),
diff --git a/easybuild/easyconfigs/x/X11/X11-20170129-gimkl-2017a.eb b/easybuild/easyconfigs/x/X11/X11-20170129-gimkl-2017a.eb
index cfe2be0316be..f0f68e4c70a0 100644
--- a/easybuild/easyconfigs/x/X11/X11-20170129-gimkl-2017a.eb
+++ b/easybuild/easyconfigs/x/X11/X11-20170129-gimkl-2017a.eb
@@ -23,9 +23,9 @@ dependencies = [
     ('zlib', '1.2.11'),
 ]
 builddependencies = [
-    ('Autotools', '20150215', '', True),
+    ('Autotools', '20150215', '', SYSTEM),
     ('Bison', '3.0.4'),
-    ('gettext', '0.19.8', '', True),
+    ('gettext', '0.19.8', '', SYSTEM),
     ('pkg-config', '0.29.1'),
     ('intltool', '0.51.0', '-Perl-5.24.0')
 ]
diff --git a/easybuild/easyconfigs/x/X11/X11-20170314-GCCcore-6.3.0.eb b/easybuild/easyconfigs/x/X11/X11-20170314-GCCcore-6.3.0.eb
index e36cb012947b..4b11b1d6bfa4 100644
--- a/easybuild/easyconfigs/x/X11/X11-20170314-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/x/X11/X11-20170314-GCCcore-6.3.0.eb
@@ -26,7 +26,7 @@ dependencies = [
 ]
 builddependencies = [
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
     ('Autotools', '20150215'),
     ('Bison', '3.0.4'),
     ('gettext', '0.19.8.1'),
diff --git a/easybuild/easyconfigs/x/XGBoost/XGBoost-20171120-intel-2017b-Java-1.8.0_152.eb b/easybuild/easyconfigs/x/XGBoost/XGBoost-20171120-intel-2017b-Java-1.8.0_152.eb
index 3fb7c1d49dd9..71022a190451 100644
--- a/easybuild/easyconfigs/x/XGBoost/XGBoost-20171120-intel-2017b-Java-1.8.0_152.eb
+++ b/easybuild/easyconfigs/x/XGBoost/XGBoost-20171120-intel-2017b-Java-1.8.0_152.eb
@@ -24,7 +24,7 @@ sources = [{
 checksums = [None]
 
 builddependencies = [('CMake', '3.9.5')]
-dependencies = [('Java', '1.8.0_152', '', True)]
+dependencies = [('Java', '1.8.0_152', '', SYSTEM)]
 
 buildopts = " && cd jvm-packages && mvn install -Dmaven.repo.local=%(builddir)s/m2"
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.2-GCCcore-5.4.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.2-GCCcore-5.4.0.eb
index c9e9efec327a..c705099c18c3 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.2-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.2-GCCcore-5.4.0.eb
@@ -17,9 +17,9 @@ checksums = [
 ]
 
 builddependencies = [
-    ('gettext', '0.19.8', '', True),
+    ('gettext', '0.19.8', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
-    ('binutils', '2.26', '', True),
+    ('binutils', '2.26', '', SYSTEM),
 ]
 
 # may become useful in non-x86 archs
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.3-GCCcore-6.4.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.3-GCCcore-6.4.0.eb
index c02558f16a41..e6e62af6bf55 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.3-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.3-GCCcore-6.4.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with dummy as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.19.8.1', '', True),
+    ('gettext', '0.19.8.1', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
     ('binutils', '2.28'),
 ]
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.2.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.2.0.eb
index 34d93c09f7bb..072decdbb68e 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.2.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with dummy as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.19.8.1', '', True),
+    ('gettext', '0.19.8.1', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
     ('binutils', '2.29'),
 ]
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.3.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.3.0.eb
index 4807e850e051..90c2e0ed3e83 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-7.3.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with dummy as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.19.8.1', '', True),
+    ('gettext', '0.19.8.1', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
     ('binutils', '2.30'),
 ]
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.2.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.2.0.eb
index e082fd1cfcbe..4447786633dc 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.2.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with dummy as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.19.8.1', '', True),
+    ('gettext', '0.19.8.1', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
     ('binutils', '2.31.1'),
 ]
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.3.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.3.0.eb
index cd9e93e00e00..0d03926cd60b 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-8.3.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with dummy as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.19.8.1', '', True),
+    ('gettext', '0.19.8.1', '', SYSTEM),
     # use same binutils version that was used when building GCCcore toolchain
     ('binutils', '2.32'),
 ]
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-9.2.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-9.2.0.eb
index 368d09a41f94..1622d47af781 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.4-GCCcore-9.2.0.eb
@@ -18,7 +18,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.20.1', '', True),
+    ('gettext', '0.20.1', '', SYSTEM),
     ('binutils', '2.32'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.1.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.1.0.eb
index d39dadea0a56..c7d8e9fe1d7b 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.1.0.eb
@@ -32,7 +32,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.20.1', '', True),
+    ('gettext', '0.20.1', '', SYSTEM),
     ('binutils', '2.34'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.2.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.2.0.eb
index e54a2560c6db..2ba344e0acb5 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.2.0.eb
@@ -32,7 +32,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.21', '', True),
+    ('gettext', '0.21', '', SYSTEM),
     ('binutils', '2.35'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.3.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.3.0.eb
index c02c4e17cc91..2f9102b6d692 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-10.3.0.eb
@@ -25,7 +25,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.21', '', True),
+    ('gettext', '0.21', '', SYSTEM),
     ('binutils', '2.36.1'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.2.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.2.0.eb
index f6a70e9b2112..a482f5480429 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.2.0.eb
@@ -25,7 +25,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.21', '', True),
+    ('gettext', '0.21', '', SYSTEM),
     ('binutils', '2.37'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.3.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.3.0.eb
index 2ee4825b7009..c965c1e1efac 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-11.3.0.eb
@@ -25,7 +25,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.21', '', True),
+    ('gettext', '0.21', '', SYSTEM),
     ('binutils', '2.38'),
 ]
 
diff --git a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-9.3.0.eb b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-9.3.0.eb
index 22e7b6ed6efc..73a74e9e92af 100644
--- a/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/x/XZ/XZ-5.2.5-GCCcore-9.3.0.eb
@@ -22,7 +22,7 @@ checksums = [
 
 builddependencies = [
     # use gettext built with system toolchain as build dep to avoid cyclic dependency (XZ -> gettext -> libxml2 -> XZ)
-    ('gettext', '0.20.1', '', True),
+    ('gettext', '0.20.1', '', SYSTEM),
     ('binutils', '2.34'),
 ]
 
diff --git a/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-foss-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-foss-2019a-Python-2.7.15.eb
index 69c5636677f6..4923b4db8d78 100644
--- a/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-foss-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-foss-2019a-Python-2.7.15.eb
@@ -76,7 +76,7 @@ builddependencies = [
 dependencies = [
     ('Python', '2.7.15'),
     ('SciPy-bundle', '2019.03'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('OpenCV', '3.4.7', versionsuffix),
     ('SQLite', '3.27.2'),
     ('HDF5', '1.10.5'),
diff --git a/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-fosscuda-2019a-Python-2.7.15.eb b/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-fosscuda-2019a-Python-2.7.15.eb
index 771ce085a68e..2c960877bb02 100644
--- a/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-fosscuda-2019a-Python-2.7.15.eb
+++ b/easybuild/easyconfigs/x/Xmipp/Xmipp-3.19.04-Apollo-fosscuda-2019a-Python-2.7.15.eb
@@ -82,7 +82,7 @@ builddependencies = [
 dependencies = [
     ('Python', '2.7.15'),
     ('SciPy-bundle', '2019.03'),
-    ('Java', '11', '', True),
+    ('Java', '11', '', SYSTEM),
     ('OpenCV', '3.4.7', versionsuffix),
     ('SQLite', '3.27.2'),
     ('HDF5', '1.10.5'),
diff --git a/easybuild/easyconfigs/x/xorg-macros/xorg-macros-1.19.1-GCCcore-6.3.0.eb b/easybuild/easyconfigs/x/xorg-macros/xorg-macros-1.19.1-GCCcore-6.3.0.eb
index 5ffb3e6b974a..fe9d080b2b47 100755
--- a/easybuild/easyconfigs/x/xorg-macros/xorg-macros-1.19.1-GCCcore-6.3.0.eb
+++ b/easybuild/easyconfigs/x/xorg-macros/xorg-macros-1.19.1-GCCcore-6.3.0.eb
@@ -24,7 +24,7 @@ checksums = ['0bb70872f45d9973db645123fe9fae9c587d1cc0ad1b3bfa67864c3f99adbd2a']
 
 builddependencies = [
     # use same binutils version that was used when building GCC toolchain
-    ('binutils', '2.27', '', True),
+    ('binutils', '2.27', '', SYSTEM),
     ('Autotools', '20150215'),
 ]
 
diff --git a/easybuild/easyconfigs/y/Yade/Yade-2018.02b-intel-2018a-Python-2.7.14.eb b/easybuild/easyconfigs/y/Yade/Yade-2018.02b-intel-2018a-Python-2.7.14.eb
index a81eb292daf9..3f708d997cf3 100644
--- a/easybuild/easyconfigs/y/Yade/Yade-2018.02b-intel-2018a-Python-2.7.14.eb
+++ b/easybuild/easyconfigs/y/Yade/Yade-2018.02b-intel-2018a-Python-2.7.14.eb
@@ -43,7 +43,7 @@ dependencies = [
 
 builddependencies = [
     ('CMake', '3.12.1'),
-    ('Eigen', '3.3.4', '', True),
+    ('Eigen', '3.3.4', '', SYSTEM),
 ]
 
 separate_build_dir = True
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.1.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.1.0.eb
index a7164e8d8fce..169f8988f8ea 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.1.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.1.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.34', '', True)]
+builddependencies = [('binutils', '2.34', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.2.0.eb
index c26c13b8e50a..5a346a38f11e 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.2.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.35', '', True)]
+builddependencies = [('binutils', '2.35', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.3.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.3.0.eb
index e6d6bbf50524..982b3609ed3a 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-10.3.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.1.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.1.0.eb
index 38623a5181d5..307df551e636 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.1.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.1.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.36.1', '', True)]
+builddependencies = [('binutils', '2.36.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.2.0.eb
index a7d80d3c9c2d..dfca691dd429 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-11.2.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.37', '', True)]
+builddependencies = [('binutils', '2.37', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-5.5.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-5.5.0.eb
index bb5db1a26d28..734b6bda65c4 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-5.5.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-5.5.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-6.4.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-6.4.0.eb
index acbff073f4ef..4cabf0a2d5d8 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-6.4.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-6.4.0.eb
@@ -20,7 +20,7 @@ checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
 builddependencies = [
-    ('binutils', '2.28', '', True),
+    ('binutils', '2.28', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.2.0.eb
index 016a24fff229..ee843d04c0cb 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.2.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.29', '', True)]
+builddependencies = [('binutils', '2.29', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.3.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.3.0.eb
index 6576f6849f48..9753d8d119d4 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.3.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.3.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.30', '', True)]
+builddependencies = [('binutils', '2.30', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.4.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.4.0.eb
index b8e35c68d3a2..0bb6e2b7da5d 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.4.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-7.4.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.1.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.1.0.eb
index f97c67529890..3741db1cf3bd 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.1.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.1.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.30', '', True)]
+builddependencies = [('binutils', '2.30', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.2.0.eb
index ec3c9d04c8e9..20709893f331 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.2.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.31.1', '', True)]
+builddependencies = [('binutils', '2.31.1', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.3.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.3.0.eb
index b1c7a447036f..b868b2353217 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.3.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.3.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.4.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.4.0.eb
index 6c89bf42f360..a090047e74b1 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.4.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-8.4.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.1.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.1.0.eb
index 25ecfcd4a9e6..6649905e484f 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.1.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.1.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.2.0.eb
index a5107c7bfea1..dda890bf849c 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.2.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.32', '', True)]
+builddependencies = [('binutils', '2.32', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.3.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.3.0.eb
index bbc278b1c0e3..090662b5e71b 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.3.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.3.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.34', '', True)]
+builddependencies = [('binutils', '2.34', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.4.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.4.0.eb
index 670d59400755..3a0036514dac 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.4.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.11-GCCcore-9.4.0.eb
@@ -17,7 +17,7 @@ checksums = ['c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1']
 
 # use same binutils version that was used when building GCC toolchain
 builddependencies = [
-    ('binutils', '2.36.1', '', True),
+    ('binutils', '2.36.1', '', SYSTEM),
 ]
 
 sanity_check_paths = {
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb
index 31726b4af9d9..0c3148f7ed03 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.1.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.1.0.eb
index 7cd1927d0367..f31b53b8ff3a 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.1.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.1.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.2.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.2.0.eb
index a9717ade39ba..f7bcf94b72a8 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-12.2.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.39', '', True)]
+builddependencies = [('binutils', '2.39', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-9.5.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-9.5.0.eb
index 67c423db8579..b350c9f3c4fd 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-9.5.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.12-GCCcore-9.5.0.eb
@@ -20,7 +20,7 @@ checksums = [
 ]
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.38', '', True)]
+builddependencies = [('binutils', '2.38', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
diff --git a/easybuild/easyconfigs/z/zlib/zlib-1.2.8-GCCcore-5.4.0.eb b/easybuild/easyconfigs/z/zlib/zlib-1.2.8-GCCcore-5.4.0.eb
index b139c1dc9a60..5117fda9bf4a 100644
--- a/easybuild/easyconfigs/z/zlib/zlib-1.2.8-GCCcore-5.4.0.eb
+++ b/easybuild/easyconfigs/z/zlib/zlib-1.2.8-GCCcore-5.4.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCELOWER_TAR_GZ]
 checksums = ['36658cb768a54c1d4dec43c3116c27ed893e88b02ecfcb44f2166f9c0b7f2a0d']
 
 # use same binutils version that was used when building GCC toolchain
-builddependencies = [('binutils', '2.26', '', True)]
+builddependencies = [('binutils', '2.26', '', SYSTEM)]
 
 sanity_check_paths = {
     'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],