1 files changed, 7 insertions, 1 deletions
diff --git a/posix/regcomp.c b/posix/regcomp.c
index a762859f8c..9f56b389df 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -964,7 +964,7 @@ static void
 optimize_utf8 (dfa)
      re_dfa_t *dfa;
 {
-  int node;
+  int node, i;
 
   for (node = 0; node < dfa->nodes_len; ++node)
     switch (dfa->nodes[node].type)
@@ -999,6 +999,12 @@ optimize_utf8 (dfa)
       case OP_OPEN_SUBEXP:
       case OP_CLOSE_SUBEXP:
 	break;
+      case SIMPLE_BRACKET:
+	/* Just double check.  */
+        for (i = 0x80 / UINT_BITS; i < BITSET_UINTS; ++i)
+	  if (dfa->nodes[node].opr.sbcset[i])
+	    return;
+	break;
       default:
 	return;
       }