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gh-100384: Error on unguarded-availability in Darwin builds #128155

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Dec 22, 2024
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1 change: 1 addition & 0 deletions .github/workflows/reusable-macos.yml
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ jobs:
brew link --overwrite tcl-tk@8
- name: Configure CPython
run: |
MACOSX_DEPLOYMENT_TARGET=10.15 \
GDBM_CFLAGS="-I$(brew --prefix gdbm)/include" \
GDBM_LIBS="-L$(brew --prefix gdbm)/lib -lgdbm" \
./configure \
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Error on ``unguarded-availability`` in macOS builds, preventing invalid
use of symbols that are not available in older versions of the OS.
41 changes: 41 additions & 0 deletions configure

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7 changes: 7 additions & 0 deletions configure.ac
Original file line number Diff line number Diff line change
Expand Up @@ -2603,6 +2603,13 @@ AS_VAR_IF([ac_cv_gcc_compat], [yes], [
esac
AC_MSG_RESULT([$CC])
# Error on unguarded use of new symbols, which will fail at runtime for
# users on older versions of macOS
AX_CHECK_COMPILE_FLAG([-Wunguarded-availability],
[AS_VAR_APPEND([CFLAGS_NODIST], [" -Werror=unguarded-availability"])],
[],
[-Werror])
LIPO_INTEL64_FLAGS=""
if test "${enable_universalsdk}"
then
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