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gprofng: Don't hardcode -Wno-nonnull-compare

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Use -Wno-nonnull-compare only if it is supported.

	PR gprof/28969
	* libcollector/Makefile.am (AM_CFLAGS): Replace
	-Wno-nonnull-compare with GPROFNG_NO_NONNULL_COMPARE_CFLAGS.
	* libcollector/configure.ac (GPROFNG_NO_NONNULL_COMPARE_CFLAGS):
	New AC_SUBST for -Wno-nonnull-compare.
	* libcollector/Makefile.in: Regenerate.
	* libcollector/aclocal.m4: Likewise.
	* libcollector/configure: Likewise.
This commit is contained in:
H.J. Lu
2022-03-15 08:52:30 -07:00
parent c5edd3b884
commit a8b34706ef
5 changed files with 69 additions and 4 deletions
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64
gprofng/libcollector/configure vendored
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@@ -634,6 +634,7 @@ am__EXEEXT_TRUE
LTLIBOBJS
LIBOBJS
CLOCK_GETTIME_LINK
GPROFNG_NO_NONNULL_COMPARE_CFLAGS
GPROFNG_VARIANT
CXXCPP
OTOOL64
@@ -12014,7 +12015,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 12017 "configure"
#line 12018 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12120,7 +12121,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 12123 "configure"
#line 12124 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -15438,6 +15439,65 @@ case "${target}" in
esac
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
GPROFNG_NO_NONNULL_COMPARE_CFLAGS=
save_CFLAGS="$CFLAGS"
for real_option in -Wno-nonnull-compare; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
case $real_option in
-Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
*) option=$real_option ;;
esac
as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
$as_echo_n "checking whether $CC supports $option... " >&6; }
if eval \${$as_acx_Woption+:} false; then :
$as_echo_n "(cached) " >&6
else
CFLAGS="$option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_acx_Woption=yes"
else
eval "$as_acx_Woption=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$as_acx_Woption
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if test `eval 'as_val=${'$as_acx_Woption'};$as_echo "$as_val"'` = yes; then :
GPROFNG_NO_NONNULL_COMPARE_CFLAGS="$GPROFNG_NO_NONNULL_COMPARE_CFLAGS${GPROFNG_NO_NONNULL_COMPARE_CFLAGS:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
clock_gettime_link=
# At least for glibc, clock_gettime is in librt. But don't
# pull that in if it still doesn't give us the function we want. This