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gh-117752: Autoconf: fix -fno-semantic-interposition check (#117789) 

Force the compiler to issue an error if the flag is not supported.
This commit is contained in:
Erlend E. Aasland 2024-04-12 09:37:38 +02:00 committed by GitHub
parent 396b831850
commit 49fc1414b5
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GPG Key ID: B5690EEEBB952194
2 changed files with 8 additions and 8 deletions
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14
configure generated vendored
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@ -8241,13 +8241,13 @@ if test "$Py_OPT" = 'true' ; then
*gcc*)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fno-semantic-interposition" >&5
printf %s "checking whether C compiler accepts -fno-semantic-interposition... " >&6; }
if test ${ax_cv_check_cflags___fno_semantic_interposition+y}
if test ${ax_cv_check_cflags__Werror__fno_semantic_interposition+y}
then :
printf %s "(cached) " >&6
else $as_nop
ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS -fno-semantic-interposition"
CFLAGS="$CFLAGS -Werror -fno-semantic-interposition"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@ -8261,16 +8261,16 @@ main (void)
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
ax_cv_check_cflags___fno_semantic_interposition=yes
ax_cv_check_cflags__Werror__fno_semantic_interposition=yes
else $as_nop
ax_cv_check_cflags___fno_semantic_interposition=no
ax_cv_check_cflags__Werror__fno_semantic_interposition=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___fno_semantic_interposition" >&5
printf "%s\n" "$ax_cv_check_cflags___fno_semantic_interposition" >&6; }
if test "x$ax_cv_check_cflags___fno_semantic_interposition" = xyes
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags__Werror__fno_semantic_interposition" >&5
printf "%s\n" "$ax_cv_check_cflags__Werror__fno_semantic_interposition" >&6; }
if test "x$ax_cv_check_cflags__Werror__fno_semantic_interposition" = xyes
then :
CFLAGS_NODIST="$CFLAGS_NODIST -fno-semantic-interposition"

2
configure.ac
View File

@ -1799,7 +1799,7 @@ if test "$Py_OPT" = 'true' ; then
AX_CHECK_COMPILE_FLAG([-fno-semantic-interposition],[
CFLAGS_NODIST="$CFLAGS_NODIST -fno-semantic-interposition"
LDFLAGS_NODIST="$LDFLAGS_NODIST -fno-semantic-interposition"
])
], [], [-Werror])
;;
esac
elif test "$ac_sys_system" = "Emscripten" -o "$ac_sys_system" = "WASI"; then