ac_libiberty_warn_cflags=
save_CFLAGS="$CFLAGS"
-for option in -W -Wall -Wwrite-strings -Wc++-compat \
+for real_option in -W -Wall -Wwrite-strings -Wc++-compat \
-Wstrict-prototypes; 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
{ $as_echo "$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 :
- ac_libiberty_warn_cflags="$ac_libiberty_warn_cflags${ac_libiberty_warn_cflags:+ }$option"
+ ac_libiberty_warn_cflags="$ac_libiberty_warn_cflags${ac_libiberty_warn_cflags:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
+# Do the check with the no- prefix removed from the warning options
+# since gcc silently accepts any -Wno-* option on purpose
if test "$GCC" = yes; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -pedantic " >&5
$as_echo_n "checking whether $CC supports -pedantic ... " >&6; }
;;
i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*)
;;
- i[34567]86-*-interix3*)
+ i[34567]86-*-interix[3-9]*)
# Interix 3.x gcc -fpic/-fPIC options generate broken code.
# Instead, we relocate shared libraries at runtime.
;;
m68k-*-*)
PICFLAG=-fpic
;;
- s390*-*-*)
- PICFLAG=-fpic
- ;;
# FIXME: Override -fPIC default in libgcc only?
sh-*-linux* | sh[2346lbe]*-*-linux*)
PICFLAG=-fpic
$as_echo_n "(cached) " >&6
else
if test "$cross_compiling" = yes; then :
- ac_cv_func_strncmp_works=no
+ ac_cv_func_strncmp_works=yes
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */