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configure.ac: Add -Wlogical-op, if it's not noisy.

This commit is contained in:
Marcus Meissner 2010-12-17 21:29:20 +01:00 committed by Alexandre Julliard
parent 61d2d80795
commit f825f0d04a
2 changed files with 47 additions and 3 deletions
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37
configure vendored
View File

@ -12229,8 +12229,8 @@ fi
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wpointer-arith -Werror"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken string.h that generates warnings" >&5
$as_echo_n "checking for broken string.h that generates warnings... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken string.h that generates warnings with -Wpointer-arith" >&5
$as_echo_n "checking for broken string.h that generates warnings with -Wpointer-arith... " >&6; }
if test "${ac_cv_c_string_h_warnings+set}" = set; then :
$as_echo_n "(cached) " >&6
else
@ -12260,6 +12260,39 @@ $as_echo "$ac_cv_c_string_h_warnings" >&6; }
EXTRACFLAGS="$EXTRACFLAGS -Wpointer-arith"
fi
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wlogical-op -Werror"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken string.h that generates warnings with -Wlogical-op" >&5
$as_echo_n "checking for broken string.h that generates warnings with -Wlogical-op... " >&6; }
if test "${ac_cv_c_logicalop_noisy+set}" = set; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <string.h>
int
main ()
{
char*f(const char *h,char n) {return strchr(h,n);}
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
ac_cv_c_logicalop_noisy=no
else
ac_cv_c_logicalop_noisy=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_logicalop_noisy" >&5
$as_echo "$ac_cv_c_logicalop_noisy" >&6; }
CFLAGS="$saved_CFLAGS"
if test "$ac_cv_c_logicalop_noisy" = "no"
then
EXTRACFLAGS="$EXTRACFLAGS -Wlogical-op"
fi
if test "x$enable_maintainer_mode" = "xyes"
then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Werror" >&5

13
configure.ac
View File

@ -1673,7 +1673,7 @@ then
dnl Check for noisy string.h
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wpointer-arith -Werror"
AC_CACHE_CHECK([for broken string.h that generates warnings], ac_cv_c_string_h_warnings,
AC_CACHE_CHECK([for broken string.h that generates warnings with -Wpointer-arith], ac_cv_c_string_h_warnings,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string.h>]], [[]])],[ac_cv_c_string_h_warnings=no],[ac_cv_c_string_h_warnings=yes]))
CFLAGS="$saved_CFLAGS"
if test "$ac_cv_c_string_h_warnings" = "no"
@ -1681,6 +1681,17 @@ then
EXTRACFLAGS="$EXTRACFLAGS -Wpointer-arith"
fi
dnl Check for noisy string.h on logical ops
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wlogical-op -Werror"
AC_CACHE_CHECK([for broken string.h that generates warnings with -Wlogical-op], ac_cv_c_logicalop_noisy,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string.h>]], [[char*f(const char *h,char n) {return strchr(h,n);}]])],[ac_cv_c_logicalop_noisy=no],[ac_cv_c_logicalop_noisy=yes]))
CFLAGS="$saved_CFLAGS"
if test "$ac_cv_c_logicalop_noisy" = "no"
then
EXTRACFLAGS="$EXTRACFLAGS -Wlogical-op"
fi
dnl Enable -Werror for maintainer mode
if test "x$enable_maintainer_mode" = "xyes"
then