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authorAndreas Schwab <schwab@linux-m68k.org>2011-12-19 13:12:26 +0000
committerAndreas Schwab <schwab@gcc.gnu.org>2011-12-19 13:12:26 +0000
commit095af58f2c2f45926912ab8d30195e4ca0d69462 (patch)
tree65747ef66aa8db22b468420f30ac9bad1ada89d0 /libcpp/configure
parentc8a89d2a41c5cd9a651215d87edc6d3c0f04b9c8 (diff)
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Check for warning flags without no- prefix
config/: PR bootstrap/51388 * warnings.m4 (ACX_PROG_CC_WARNING_OPTS) (ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Run the test without the no- prefix. fixincludes/: * configure: Regenerate. gcc/: * configure: Regenerate. libcpp/: * configure: Regenerate. libdecnumber/: * configure: Regenerate. libiberty/: * configure: Regenerate. lto-plugin/: * configure: Regenerate. From-SVN: r182478
Diffstat (limited to 'libcpp/configure')
-rwxr-xr-xlibcpp/configure50
1 files changed, 35 insertions, 15 deletions
diff --git a/libcpp/configure b/libcpp/configure
index 803daae..0ada4e9 100755
--- a/libcpp/configure
+++ b/libcpp/configure
@@ -4688,8 +4688,14 @@ test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader"
warn=
save_CFLAGS="$CFLAGS"
-for option in -W -Wall -Wno-narrowing -Wwrite-strings \
+for real_option in -W -Wall -Wno-narrowing -Wwrite-strings \
-Wmissing-format-attribute; 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 $option" >&5
@@ -4721,15 +4727,21 @@ eval ac_res=\$$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="$warn${warn:+ }$option"
+ warn="$warn${warn:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
c_warn=
save_CFLAGS="$CFLAGS"
-for option in -Wstrict-prototypes -Wmissing-prototypes \
+for real_option in -Wstrict-prototypes -Wmissing-prototypes \
-Wold-style-definition -Wc++-compat; 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 $option" >&5
@@ -4761,20 +4773,22 @@ eval ac_res=\$$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 :
- c_warn="$c_warn${c_warn:+ }$option"
+ c_warn="$c_warn${c_warn:+ }$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.$ac_ext
/* end confdefs.h. */
@@ -4787,16 +4801,16 @@ main ()
}
_ACEOF
if ac_fn_c_try_compile "$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${WARN_PEDANTIC:+ }-pedantic -Wno-long-long"
fi
@@ -4806,7 +4820,13 @@ fi
# Disable exceptions and RTTI if building with g++
noexception_flags=
save_CFLAGS="$CFLAGS"
-for option in -fno-exceptions -fno-rtti; do
+for real_option in -fno-exceptions -fno-rtti; 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 $option" >&5
@@ -4838,7 +4858,7 @@ eval ac_res=\$$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 :
- noexception_flags="$noexception_flags${noexception_flags:+ }$option"
+ noexception_flags="$noexception_flags${noexception_flags:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"