5396 gcc 4.8.2 longjmp errors for cscope-fast

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2015 Gary Mills
   * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
*** 61,71 ****
  /* get a character from the terminal */
  
  int
  mygetch(void)
  {
!         SIGTYPE (*savesig)();           /* old value of signal */
          int     c;
  
          /* change an interrupt signal to a break key character */
          if (setjmp(env) == 0) {
                  savesig = signal(SIGINT, catchint);
--- 62,72 ----
  /* get a character from the terminal */
  
  int
  mygetch(void)
  {
!         SIGTYPE (*volatile savesig)() = SIG_DFL; /* old value of signal */
          int     c;
  
          /* change an interrupt signal to a break key character */
          if (setjmp(env) == 0) {
                  savesig = signal(SIGINT, catchint);