add Makefile.local comments for macOS reduce dependency chains

CHANGES

@@ -22,6 +22,9 @@ The following are the changes from calc version 2.14.3.1 to date:
     Updated comments in Makefile.local for how to Diagnosing memory,
     thread, and crash issues under RHEL and macOS.
 
+    Added comments in Makefile.local for how to reduce dependency chains
+    under macOS
+
 
 The following are the changes from calc version 2.14.2.1 to 2.14.3.0:
 

Makefile.local

@@ -26,7 +26,9 @@
 ####
 # RHEL Diagnosing memory, thread, and crash issues
 #
-# This comment block was tested for:
+# For more info see: https://github.com/google/sanitizers/wiki/AddressSanitizer
+#
+# This comment block was tested under:
 #
 #	RHEL9 gcc version 11.3.1 20221121 (Red Hat 11.3.1-4) (GCC)
 #
@@ -38,7 +40,7 @@
 #
 #    UNSUPPORTED_FSANITIZE:= -fsanitize=nullability-arg -fsanitize=nullability-assign
 #
-# Uncomment these values to disnose memory, thread, and crash issues on RHEL:
+# Uncomment these lines:
 #
 # DEBUG:= -O0 -g
 # FSANITIZE:= -fsanitize=undefined -fsanitize=address -fsanitize=bool -fsanitize=bounds
@@ -55,7 +57,9 @@
 ####
 # macOS Diagnosing memory, thread, and crash issues
 #
-# This comment block was tested for:
+# For more info see: https://github.com/google/sanitizers/wiki/AddressSanitizer
+#
+# This comment block was tested under:
 #
 #	macOS 13.5 with clang version 14.0.3 (clang-1403.0.22.14.1)
 #
@@ -67,7 +71,7 @@
 #
 #    UNSUPPORTED_FSANITIZE:= -fsanitize-nullability-return
 #
-# Uncomment these values to disnose memory, thread, and crash issues on macOS:
+# Uncomment these lines:
 #
 # DEBUG:= -O0 -g
 # FSANITIZE:= -fsanitize=undefined -fsanitize=address -fsanitize=bool -fsanitize=bounds
@@ -81,3 +85,13 @@
 # LDFLAGS+= -Wno-invalid-command-line-argument ${FSANITIZE} -fno-omit-frame-pointer
 # CALC_ENV+= ASAN_OPTIONS=detect_stack_use_after_return=1
 ####
+
+####
+# To reduce dependency chains under macOS:
+#
+# This comment block was tested under:
+#
+#	macOS 13.5 with clang version 14.0.3 (clang-1403.0.22.14.1)
+#
+# LDFLAGS+= '-Wl,-dead_strip_dylibs -Wl,-dead_strip'
+####