diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dbdc371caf6..3b0e24a66fc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2003-06-15  Neil Booth  <neil@daikokuya.co.uk>
+
+	* opts.sh: Quote '+' in regex.
+
 2003-06-15  Neil Booth  <neil@daikokuya.co.uk>
 
 	* c-opts.c (lang_flags): Update for new spelling of flags.
diff --git a/gcc/opts.sh b/gcc/opts.sh
index afa3221a8cc..0816931c4cb 100644
--- a/gcc/opts.sh
+++ b/gcc/opts.sh
@@ -48,7 +48,9 @@ ${AWK} '
 	flags = " " flags " "
 	result = "0"
 	for (j = 0; j < n_langs; j++) {
-	    if (flags ~ " " langs[j] " ")
+	    regex = " " langs[j] " "
+	    gsub ( "+", "\\+", regex )
+	    if (flags ~ regex)
 		result = result " | " macros[j]
 	}
         if (flags ~ " Common ") result = result " | CL_COMMON"