[GLib] _LIBCPP_ENABLE_ASSERTIONS is deprecated, please use _LIBCPP_HARDENING_MODE instead on macOS 15

[hiroyuki-sato]

Describe the bug, including details regarding any error messages, version, and platform.

• macOS: 15.5
• clang: Apple clang version 17.0.0 (clang-1700.0.13.5)
• source: f1c6619

meson setup \
      --backend=ninja \
      --prefix=/tmp/local \
      --libdir=lib \
      --pkg-config-path=/tmp/local/lib/pkgconfig \
      -Ddoc=false \
      -Dvapi=false \
      -Dwerror=false \
      c_glib.build \
      c_glib
ninja -C c_glib.build all

[8/103] Compiling C++ object arrow-glib/libarrow-glib.2100.dylib.p/codec.cpp.o
In file included from ../c_glib/arrow-glib/codec.cpp:20:
In file included from ../c_glib/arrow-glib/codec.hpp:22:
In file included from /tmp/local/include/arrow/util/compression.h:20:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/cstdint:143:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:48:6: warning: "_LIBCPP_ENABLE_ASSERTIONS is deprecated, please use _LIBCPP_HARDENING_MODE instead" [-W#warnings]
   48 | #    warning "_LIBCPP_ENABLE_ASSERTIONS is deprecated, please use _LIBCPP_HARDENING_MODE instead"
      |      ^
1 warning generated.

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__config

// HARDENING {

// This is for backward compatibility -- make enabling `_LIBCPP_ENABLE_ASSERTIONS` (which predates hardening modes)
// equivalent to setting the extensive mode. This is deprecated and will be removed in LLVM 20.
#  ifdef _LIBCPP_ENABLE_ASSERTIONS
#    warning "_LIBCPP_ENABLE_ASSERTIONS is deprecated, please use _LIBCPP_HARDENING_MODE instead"
#    if _LIBCPP_ENABLE_ASSERTIONS != 0 && _LIBCPP_ENABLE_ASSERTIONS != 1
#      error "_LIBCPP_ENABLE_ASSERTIONS must be set to 0 or 1"
#    endif
#    if _LIBCPP_ENABLE_ASSERTIONS
#      define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_EXTENSIVE
#    endif
#  endif

Component(s)

GLib

[kou]

mesonbuild/meson#14440

The next Meson release will fix it.

[hiroyuki-sato]

Thank you for your comment. I'll close when this issue resolve.

[raulcd]

The same issue seems to be happening on PRs at the moment for the ARM64 macOS 14 GLib & Ruby
The issue seems to have been failing for more than a week now (based on the GH actions):
https://github.com/apache/arrow/actions/workflows/ruby.yml

I am unsure whether this is being tackled somewhere else but should we expect this to be fixed with the meson fix? cc @kou

[kou]

It seems that a new version of Meson will be released soon: mesonbuild/meson#14440 (comment)

Let's wait for it.

FYI: mesonbuild/meson#14440 was released but mesonbuild/meson#14856 wasn't released. Our CI failure is caused by mesonbuild/meson#14856 .