5396 gcc 4.8.2 longjmp errors for cscope-fast

@@ -1,6 +1,7 @@
 /*
+ * Copyright 2015 Gary Mills
  * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
 /*
  * Copyright (c) 1988 Regents of the University of California.

@@ -381,11 +382,12 @@
         char            c, *cptr;
         short           i;
         struct direct   *dirp;
         struct lbuf     *bp;
         char            *progname;
-        short           colon, mode;
+        volatile short  colon;
+        short           mode;
         long            temp;
 
         /* Options/Suboptions processing */
         int     opt;
         char    *subopts;