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bpo-5755: Move -Wstrict-prototypes to CFLAGS_NODIST (GH-7395)

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INADA Naoki 2018-06-05 20:40:53 +09:00 committed by GitHub
parent 5f48e2644d
commit e336484847
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3 changed files with 64 additions and 10 deletions
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3
Misc/NEWS.d/next/Build/2018-06-04-21-34-34.bpo-5755.65GmCj.rst Normal file
View file

@ -0,0 +1,3 @@
Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
option emitted annoying warnings when building extension modules written in
C++.

46
configure vendored
View file

@ -6676,9 +6676,6 @@ if test "${OPT-unset}" = "unset"
then
case $GCC in
yes)
if test "$CC" != 'g++' ; then
STRICT_PROTO="-Wstrict-prototypes"
fi
# For gcc 4.x we need to use -fwrapv so lets check if its supported
if "$CC" -v --help 2>/dev/null |grep -- -fwrapv > /dev/null; then
WRAP="-fwrapv"
@ -6725,8 +6722,6 @@ then
;;
esac
OPT="$OPT $STRICT_PROTO"
case $ac_sys_system in
SCO_SV*) OPT="$OPT -m486 -DSCO5"
;;
@ -7094,6 +7089,47 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_enable_unreachable_code_warning" >&5
$as_echo "$ac_cv_enable_unreachable_code_warning" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can turn on $CC strict-prototypes warning" >&5
$as_echo_n "checking if we can turn on $CC strict-prototypes warning... " >&6; }
ac_save_cc="$CC"
CC="$CC -Werror -Wstrict-prototypes"
if ${ac_cv_enable_enable_strict_prototypes_warning+:} false; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
ac_cv_enable_strict_prototypes_warning=yes
else
ac_cv_enable_strict_prototypes_warning=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
CC="$ac_save_cc"
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_enable_strict_prototypes_warning" >&5
$as_echo "$ac_cv_enable_strict_prototypes_warning" >&6; }
if test $ac_cv_enable_strict_prototypes_warning = yes
then
CFLAGS_NODIST="$CFLAGS_NODIST -Wstrict-prototypes"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can make implicit function declaration an error in $CC" >&5
$as_echo_n "checking if we can make implicit function declaration an error in $CC... " >&6; }
ac_save_cc="$CC"

25
configure.ac
View file

@ -1421,9 +1421,6 @@ if test "${OPT-unset}" = "unset"
then
case $GCC in
yes)
if test "$CC" != 'g++' ; then
STRICT_PROTO="-Wstrict-prototypes"
fi
# For gcc 4.x we need to use -fwrapv so lets check if its supported
if "$CC" -v --help 2>/dev/null |grep -- -fwrapv > /dev/null; then
WRAP="-fwrapv"
@ -1470,8 +1467,6 @@ then
;;
esac
OPT="$OPT $STRICT_PROTO"
case $ac_sys_system in
SCO_SV*) OPT="$OPT -m486 -DSCO5"
;;
@ -1678,6 +1673,26 @@ yes)
fi
AC_MSG_RESULT($ac_cv_enable_unreachable_code_warning)
AC_MSG_CHECKING(if we can turn on $CC strict-prototypes warning)
ac_save_cc="$CC"
CC="$CC -Werror -Wstrict-prototypes"
AC_CACHE_VAL(ac_cv_enable_enable_strict_prototypes_warning,
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM([[]], [[]])
],[
ac_cv_enable_strict_prototypes_warning=yes
],[
ac_cv_enable_strict_prototypes_warning=no
]))
CC="$ac_save_cc"
AC_MSG_RESULT($ac_cv_enable_strict_prototypes_warning)
if test $ac_cv_enable_strict_prototypes_warning = yes
then
CFLAGS_NODIST="$CFLAGS_NODIST -Wstrict-prototypes"
fi
AC_MSG_CHECKING(if we can make implicit function declaration an error in $CC)
ac_save_cc="$CC"
CC="$CC -Werror=implicit-function-declaration"