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Autotools: Update ax_check_compile_flag.m4 to serial 11 (#19127)

Browse source 
```sh
wget -O build/ax_check_compile_flag.m4 \
  https://cgit.git.savannah.gnu.org/cgit/autoconf-archive.git/plain/m4/ax_check_compile_flag.m4
```

New version of AX_CHECK_COMPILE_FLAG macro now adds the -Werror flag
automatically, if GNU-compatible compiler is detected.
This commit is contained in:
Peter Kokot 2025-08-09 02:03:37 +02:00 • committed by GitHub
parent 7bf79ab666
commit f64c6248b5
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GPG key ID: B5690EEEBB952194
7 changed files with 25 additions and 26 deletions
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21
Zend/Zend.m4
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@ -193,28 +193,21 @@ AS_VAR_IF([GCC], [yes],
dnl Check if compiler supports -Wno-clobbered (only GCC).
AX_CHECK_COMPILE_FLAG([-Wno-clobbered],
[CFLAGS="-Wno-clobbered $CFLAGS"],,
[-Werror])
[CFLAGS="-Wno-clobbered $CFLAGS"])
dnl Check for support for implicit fallthrough level 1, also add after previous
dnl CFLAGS as level 3 is enabled in -Wextra.
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough=1],
[CFLAGS="$CFLAGS -Wimplicit-fallthrough=1"],,
[-Werror])
[CFLAGS="$CFLAGS -Wimplicit-fallthrough=1"])
AX_CHECK_COMPILE_FLAG([-Wduplicated-cond],
[CFLAGS="-Wduplicated-cond $CFLAGS"],,
[-Werror])
[CFLAGS="-Wduplicated-cond $CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wlogical-op],
[CFLAGS="-Wlogical-op $CFLAGS"],,
[-Werror])
[CFLAGS="-Wlogical-op $CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wformat-truncation],
[CFLAGS="-Wformat-truncation $CFLAGS"],,
[-Werror])
[CFLAGS="-Wformat-truncation $CFLAGS"])
AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes],
[CFLAGS="-Wstrict-prototypes $CFLAGS"],,
[-Werror])
[CFLAGS="-Wstrict-prototypes $CFLAGS"])
AX_CHECK_COMPILE_FLAG([-fno-common],
[CFLAGS="-fno-common $CFLAGS"],,
[-Werror])
[CFLAGS="-fno-common $CFLAGS"])
ZEND_CHECK_ALIGNMENT
ZEND_CHECK_SIGNALS