libcxx v19.1.0

.ci_support/linux_64_channel_targetsconda-forge_libcxx_debughardeningdebug.yaml

@@ -1,7 +1,7 @@
 c_compiler:
 - gcc
 c_compiler_version:
-- '13'
+- '14'
 c_stdlib:
 - sysroot
 c_stdlib_version:
@@ -15,7 +15,7 @@ channel_targets:
 cxx_compiler:
 - gxx
 cxx_compiler_version:
-- '13'
+- '14'
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
 hardening:

.ci_support/linux_64_channel_targetsconda-forge_mainhardeningnone.yaml

@@ -1,7 +1,7 @@
 c_compiler:
 - gcc
 c_compiler_version:
-- '13'
+- '14'
 c_stdlib:
 - sysroot
 c_stdlib_version:
@@ -15,7 +15,7 @@ channel_targets:
 cxx_compiler:
 - gxx
 cxx_compiler_version:
-- '13'
+- '14'
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
 hardening:

conda-forge.yml

@@ -1,3 +1,7 @@
+azure:
+  settings_osx:
+    pool:
+      vmImage: macos-14
 bot:
   abi_migration_branches:
   - 16.x
@@ -10,7 +14,4 @@ channel_priority: flexible
 github:
   branch_name: main
   tooling_branch_name: main
-provider:
-  linux_aarch64: default
-  linux_ppc64le: default
 test: native_and_emulated

recipe/build.sh

@@ -22,6 +22,7 @@ cmake -G Ninja \
     -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
     -DCMAKE_INSTALL_PREFIX=$PREFIX \
     -DCMAKE_BUILD_TYPE=Release \
+    -DLIBCXX_ENABLE_TIME_ZONE_DATABASE=ON \
     -DLIBCXX_INCLUDE_BENCHMARKS=OFF \
     -DLIBCXX_INCLUDE_DOCS=OFF \
     -DLIBCXX_INCLUDE_TESTS=OFF \

recipe/compile_test.sh

@@ -1,38 +1,50 @@
 set -xe
 
-LINK_FLAGS="-Wl,-rpath,$PREFIX/lib -L$PREFIX/lib -Wl,-v -v"
+FLAGS="-Wl,-rpath,$PREFIX/lib -L$PREFIX/lib -Wl,-v -v"
 
 # target platform is empty here now
 if [[ "$target_platform" == osx* ]]; then
     llvm-nm $PREFIX/lib/libc++.1.dylib
+    # to be able to use libc++'s tzdb code
+    FLAGS="${FLAGS} -D_LIBCPP_DISABLE_AVAILABILITY"
 else
-    LINK_FLAGS="${LINK_FLAGS} -lc++abi"
+    FLAGS="${FLAGS} -lc++abi"
 fi
 
 FILES=test_sources/*.c
 for f in $FILES
 do
-    clang -O2 -g $f $LINK_FLAGS
+    clang -O2 -g $f $FLAGS
     ./a.out
 done
 
 FILES=test_sources/*.cpp
 for f in $FILES
 do
-    clang++ -stdlib=libc++ -O2 -g $f $LINK_FLAGS
+    clang++ -stdlib=libc++ -O2 -g $f $FLAGS
     ./a.out
 done
 
 FILES=test_sources/cpp11/*.cpp
 for f in $FILES
 do
-    clang++ -stdlib=libc++ -std=c++11 -O2 -g $f $LINK_FLAGS
+    clang++ -stdlib=libc++ -std=c++11 -O2 -g $f $FLAGS
     ./a.out
 done
 
 FILES=test_sources/cpp14/*.cpp
 for f in $FILES
 do
-    clang++ -stdlib=libc++ -std=c++14 -O2 -g $f $LINK_FLAGS
+    clang++ -stdlib=libc++ -std=c++14 -O2 -g $f $FLAGS
     ./a.out
 done
+
+# tzdb integration (experimental as of v19)
+cd test_sources/tzdb
+clang++ -stdlib=libc++ -fexperimental-library -std=c++20 -O2 -g tzdb.cpp -o tzdb $FLAGS
+./tzdb
+
+# also test tzdb without any environment activation
+unset PREFIX
+unset CONDA_PREFIX
+./tzdb

recipe/conda_build_config.yaml

@@ -6,10 +6,10 @@ cxx_compiler:        # [osx]
 # libcxx only supports the last released GCC version, see
 # https://libcxx.llvm.org/index.html#platform-and-compiler-support
 c_compiler_version:     # [unix]
-  - 13                  # [linux]
+  - 14                  # [linux]
   - "*"                 # [osx]
 cxx_compiler_version:   # [unix]
-  - 13                  # [linux]
+  - 14                  # [linux]
   - "*"                 # [osx]
 
 # we want different hashes between osx-64 & osx-arm
@@ -35,23 +35,23 @@ c_stdlib_version:           # [linux]
 # avoided in production (which we enforce with a run-export). For more details see
 # https://libcxx.llvm.org/Hardening.html
 hardening:
-  - none                    # [osx]
   - none
   - debug
+  - none                    # [osx]
 
 # in some scenarios, libraries will load a cached _system_ libc++, and if we have an
 # ABI-mismatch with that system lib, segfaults ensue (see libcxx-testing-feedstock);
 # because the ABI changed with macOS 12, we build a version each for before & after
 sys_abi:                    # [osx]
-  - pre-12                  # [osx]
   - post-12                 # [osx]
   - post-12                 # [osx]
+  - pre-12                  # [osx]
 
 # publish the pre-12 ABI & hardened builds to a separate label
 channel_targets:
-  - conda-forge libcxx_macos_lt_12  # [osx]
   - conda-forge main
   - conda-forge libcxx_debug
+  - conda-forge libcxx_macos_lt_12  # [osx]
 
 zip_keys:
   -

recipe/meta.yaml

@@ -1,4 +1,4 @@
-{% set version = "18.1.8" %}
+{% set version = "19.1.0" %}
 
 {% if sys_abi is undefined %}
 {% set sys_abi = "dummy" %}
@@ -11,7 +11,7 @@ package:
 
 source:
   - url: https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-{{ version.replace(".rc", "-rc") }}.tar.gz
-    sha256: 09c08693a9afd6236f27a2ebae62cda656eba19021ef3f94d59e931d662d4856
+    sha256: 0a08341036ca99a106786f50f9c5cb3fbe458b3b74cab6089fd368d0edb2edfe
     patches:
       # See https://discourse.llvm.org/t/shipping-custom-libc-on-macos/58606
       - patches/0001-Fix-ABI-compatibility-with-system.patch    # [sys_abi == "pre-12"]
@@ -20,9 +20,11 @@ source:
       - patches/0003-disable-_LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPT.patch
       # work around https://github.com/llvm/llvm-project/issues/90332
       - patches/0004-Work-around-stray-nostdlib-flags-causing-errors-with.patch
+      # allow chrono implementation to work on osx
+      - patches/0005-patch-__libcpp_tzdb_directory-to-allow-use-on-osx.patch
 
 build:
-  number: 7
+  number: 0
   skip: true  # [win]
   skip: true  # [ppc64le or aarch64]
 
@@ -38,9 +40,6 @@ requirements:
     - {{ compiler('c') }}
     - {{ stdlib('c') }}
     - python >3               # [not osx]
-  host:
-    # - clangdev {{ version }}  # [not osx]
-    - llvmdev {{ version }}   # [not osx]
 
 outputs:
   - name: libcxx-devel
@@ -52,11 +51,15 @@ outputs:
         - libcxx =*=debug*                              # [hardening == "debug"]
     files:
       - include/c++                 # [unix]
+      # for C++20 modules, which are installed into $PREFIX/share/libc++
+      - share/libc++/*              # [unix]
       - Library/include/c++         # [win]
     requirements:
       host:
         - {{ pin_subpackage("libcxx", exact=True) }}
       run:
+        # re-enable this once chrono implementation is in shared library
+        # - tzdata
         - {{ pin_subpackage("libcxx", max_pin=None) }}
       run_constrained:
         - __osx <12     # [osx and (sys_abi == "pre-12")]
@@ -87,12 +90,20 @@ outputs:
         # i.e. everywhere there's a string "availability(macos,...,introduced=<ver>)" for osx version >10.13;
         # 'grep -v' inverts the match but returns non-zero exit code if no lines are returned; so we use 'wc -l';
         # we want to have zero lines that don't either: contain our link or are for <=10.13 (lowest occurring in that file is 10.9)
-        - if [ 0 -eq $(cat ${PREFIX}/include/c++/v1/__availability | grep "availability(macos" | grep -vE "(conda-forge|10.9|10.1[0-3])" | wc -l) ]; then exit 0; else exit 1; fi  # [osx]
+        - if [ 0 -ne $(cat ${PREFIX}/include/c++/v1/__configuration/availability.h | grep "availability(macos" | grep -vE "(conda-forge|10.9|10.1[0-3])" | wc -l) ]; then exit 1; fi  # [osx]
         # !!!!!!!!!!!! README !!!!!!!!!!!!!!!!!!
         # we do not ship libcxxabi on OSX - this breaks exception passing
         - if [ -f $PREFIX/lib/libc++abi.dylib ]; then exit 1; fi  # [osx]
         - test -f $PREFIX/lib/libc++abi.so                        # [linux]
 
+        # for full chrono support, libcxx needs leap-seconds.list, which
+        # isn't shipped in ubuntu-22.04 nor macos-14 images (ubuntu-24.04
+        # should have it, but isn't available in azure pipelines yet).
+        - ls -lL /usr/share/zoneinfo
+        # This check is intended to start failing once an image starts shipping
+        # that file, so we can re-enable the leapsecond portion of the tzdb-tests
+        - if [ 0 -ne $(ls -lL /usr/share/zoneinfo | grep leap-seconds.list | wc -l) ]; then exit 1; fi
+
       # Following 2 projects had issues with libc++, so check them
       # before releasing just to be sure.
       downstreams:              # [osx]
@@ -104,7 +115,6 @@ outputs:
         - libcxx-testing 0.18   # [osx]
         - libcxx-testing 0.17   # [osx]
         - libcxx-testing 0.16   # [osx]
-        - libcxx-testing 0.15   # [osx]
     {% endif %}
 
   - name: libcxx
@@ -124,6 +134,7 @@ outputs:
       - lib/libc++.dylib            # [osx]
       - lib/libc++.*.dylib          # [osx]
       - Library/bin/c++*.dll        # [win]
+      # static libs for cross-compilation, due to lack of host-exports
       - lib/libc++.a                # [unix]
       - lib/libc++experimental.*    # [unix]
       - Library/lib/c++*.lib        # [win]

recipe/patches/0001-Fix-ABI-compatibility-with-system.patch

@@ -1,17 +1,17 @@
-From b461291f007bc7457a5a7f7219cd0943b8e7ba3d Mon Sep 17 00:00:00 2001
+From bf8c76c5be4a6923267959f629650d375ffe1fb5 Mon Sep 17 00:00:00 2001
 From: Isuru Fernando <isuruf@gmail.com>
 Date: Tue, 13 Jul 2021 01:57:06 -0500
-Subject: [PATCH 1/4] Fix ABI compatibility with system
+Subject: [PATCH 1/5] Fix ABI compatibility with system
 
 ---
  libcxx/src/locale.cpp | 16 ++++++++--------
  1 file changed, 8 insertions(+), 8 deletions(-)
 
 diff --git a/libcxx/src/locale.cpp b/libcxx/src/locale.cpp
-index 73b24dbf595a..6a69d6fa2855 100644
+index 4efdc63c0966..812d1a386096 100644
 --- a/libcxx/src/locale.cpp
 +++ b/libcxx/src/locale.cpp
-@@ -176,10 +176,6 @@ locale::__imp::__imp(size_t refs) : facet(refs), facets_(N), name_("C") {
+@@ -174,10 +174,6 @@ locale::__imp::__imp(size_t refs) : facet(refs), facets_(N), name_("C") {
    install(&make<codecvt<char16_t, char, mbstate_t> >(1u));
    install(&make<codecvt<char32_t, char, mbstate_t> >(1u));
    _LIBCPP_SUPPRESS_DEPRECATED_POP
@@ -22,7 +22,7 @@ index 73b24dbf595a..6a69d6fa2855 100644
    install(&make<numpunct<char> >(1u));
  #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
    install(&make<numpunct<wchar_t> >(1u));
-@@ -218,6 +214,10 @@ locale::__imp::__imp(size_t refs) : facet(refs), facets_(N), name_("C") {
+@@ -216,6 +212,10 @@ locale::__imp::__imp(size_t refs) : facet(refs), facets_(N), name_("C") {
  #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
    install(&make<std::messages<wchar_t> >(1u));
  #endif
@@ -33,7 +33,7 @@ index 73b24dbf595a..6a69d6fa2855 100644
  }
 
  locale::__imp::__imp(const string& name, size_t refs) : facet(refs), facets_(N), name_(name) {
-@@ -244,10 +244,6 @@ locale::__imp::__imp(const string& name, size_t refs) : facet(refs), facets_(N),
+@@ -242,10 +242,6 @@ locale::__imp::__imp(const string& name, size_t refs) : facet(refs), facets_(N),
      install(new codecvt_byname<char16_t, char, mbstate_t>(name_));
      install(new codecvt_byname<char32_t, char, mbstate_t>(name_));
      _LIBCPP_SUPPRESS_DEPRECATED_POP
@@ -44,7 +44,7 @@ index 73b24dbf595a..6a69d6fa2855 100644
      install(new numpunct_byname<char>(name_));
  #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
      install(new numpunct_byname<wchar_t>(name_));
-@@ -270,6 +266,10 @@ locale::__imp::__imp(const string& name, size_t refs) : facet(refs), facets_(N),
+@@ -268,6 +264,10 @@ locale::__imp::__imp(const string& name, size_t refs) : facet(refs), facets_(N),
  #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
      install(new messages_byname<wchar_t>(name_));
  #endif