configure: Always use -fno-builtin if supported, since it's needed for scanf too.
diff --git a/configure b/configure
index ff2c11d..bc57d85 100755
--- a/configure
+++ b/configure
@@ -16266,6 +16266,65 @@
fi
+ { echo "$as_me:$LINENO: checking whether the compiler supports -fno-builtin" >&5
+echo $ECHO_N "checking whether the compiler supports -fno-builtin... $ECHO_C" >&6; }
+if test "${ac_cv_cflags__fno_builtin+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_wine_try_cflags_saved=$CFLAGS
+CFLAGS="$CFLAGS -fno-builtin"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_link") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext &&
+ $as_test_x conftest$ac_exeext; then
+ ac_cv_cflags__fno_builtin=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_cv_cflags__fno_builtin=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+ conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_cflags__fno_builtin" >&5
+echo "${ECHO_T}$ac_cv_cflags__fno_builtin" >&6; }
+if test $ac_cv_cflags__fno_builtin = yes; then
+ BUILTINFLAG="-fno-builtin"
+
+fi
+
{ echo "$as_me:$LINENO: checking whether the compiler supports -fno-strict-aliasing" >&5
echo $ECHO_N "checking whether the compiler supports -fno-strict-aliasing... $ECHO_C" >&6; }
if test "${ac_cv_cflags__fno_strict_aliasing+set}" = set; then
@@ -16555,65 +16614,6 @@
then
EXTRACFLAGS="$EXTRACFLAGS -Wpointer-arith"
fi
-
- BUILTINFLAG=""
-
- saved_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror"
- { echo "$as_me:$LINENO: checking for builtin wchar inlines" >&5
-echo $ECHO_N "checking for builtin wchar inlines... $ECHO_C" >&6; }
-if test "${ac_cv_c_builtin_wchar_ctype+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-int iswlower(unsigned short);
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_c_builtin_wchar_ctype=no
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_cv_c_builtin_wchar_ctype=yes
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_c_builtin_wchar_ctype" >&5
-echo "${ECHO_T}$ac_cv_c_builtin_wchar_ctype" >&6; }
- CFLAGS="$saved_CFLAGS"
- if test "$ac_cv_c_builtin_wchar_ctype" = "yes"
- then
- BUILTINFLAG="-fno-builtin"
- fi
fi
