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authorAndreas Schwab <schwab@linux-m68k.org>2011-12-19 13:20:24 +0000
committerAndreas Schwab <schwab@linux-m68k.org>2011-12-19 13:20:24 +0000
commita53e62cf5654e07a8d78ce5c8f7d386565c2c17d (patch)
tree287f12638e706f29a2edb0a08803c843f258b274 /libdecnumber/configure
parent049682ba03cd30cc582c8c485f6a61ca8a0594e5 (diff)
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Check for warning flags without no- prefix
config/: * warnings.m4 (ACX_PROG_CC_WARNING_OPTS) (ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Run the test without the no- prefix. libdecnumber/: * configure: Regenerate. libiberty/: * configure: Regenerate.
Diffstat (limited to 'libdecnumber/configure')
-rwxr-xr-xlibdecnumber/configure30
1 files changed, 19 insertions, 11 deletions
diff --git a/libdecnumber/configure b/libdecnumber/configure
index f69dd44..5032a17 100755
--- a/libdecnumber/configure
+++ b/libdecnumber/configure
@@ -3248,9 +3248,15 @@ test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader"
WARN_CFLAGS=
save_CFLAGS="$CFLAGS"
-for option in -W -Wall -Wwrite-strings -Wstrict-prototypes \
+for real_option in -W -Wall -Wwrite-strings -Wstrict-prototypes \
-Wmissing-prototypes -Wold-style-definition \
-Wmissing-format-attribute -Wcast-qual; 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 $real_option : '-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 $option" >&5
@@ -3282,20 +3288,22 @@ eval ac_res=\$$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 :
- WARN_CFLAGS="$WARN_CFLAGS${WARN_CFLAGS:+ }$option"
+ WARN_CFLAGS="$WARN_CFLAGS${WARN_CFLAGS:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
WARN_PEDANTIC=
+# Do the check with the no- prefix removed from the warning options
+# since gcc silently accepts any -Wno-* option on purpose
if test "$GCC" = yes; then :
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -pedantic -Wno-long-long" >&5
-$as_echo_n "checking whether $CC supports -pedantic -Wno-long-long... " >&6; }
-if test "${acx_cv_prog_cc_pedantic__Wno_long_long+set}" = set; then :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -pedantic -Wlong-long" >&5
+$as_echo_n "checking whether $CC supports -pedantic -Wlong-long... " >&6; }
+if test "${acx_cv_prog_cc_pedantic__Wlong_long+set}" = set; then :
$as_echo_n "(cached) " >&6
else
save_CFLAGS="$CFLAGS"
-CFLAGS="-pedantic -Wno-long-long"
+CFLAGS="-pedantic -Wlong-long"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -3308,16 +3316,16 @@ main ()
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
- acx_cv_prog_cc_pedantic__Wno_long_long=yes
+ acx_cv_prog_cc_pedantic__Wlong_long=yes
else
- acx_cv_prog_cc_pedantic__Wno_long_long=no
+ acx_cv_prog_cc_pedantic__Wlong_long=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="$save_CFLAGS"
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_prog_cc_pedantic__Wno_long_long" >&5
-$as_echo "$acx_cv_prog_cc_pedantic__Wno_long_long" >&6; }
-if test $acx_cv_prog_cc_pedantic__Wno_long_long = yes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_prog_cc_pedantic__Wlong_long" >&5
+$as_echo "$acx_cv_prog_cc_pedantic__Wlong_long" >&6; }
+if test $acx_cv_prog_cc_pedantic__Wlong_long = yes; then :
WARN_PEDANTIC="$WARN_PEDANTIC${WARN_PEDANTIC:+ }-pedantic -Wno-long-long"
fi