PR ada/60703

[pf3gnuchains/gcc-fork.git] / fixincludes / configure

diff --git a/fixincludes/configure b/fixincludes/configure
index 70b7b94..4a28cd1 100755 (executable)
--- a/fixincludes/configure
+++ b/fixincludes/configure
@@ -4569,7 +4569,7 @@ for real_option in -W -Wall -Wwrite-strings -Wstrict-prototypes \
   # 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-\(.*\)'` ;;
+    -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`