5396 gcc 4.8.2 longjmp errors for cscope-fast

*** 21,30 ****
--- 21,31 ----
  
  /*
   * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2013, Joyent Inc. All rights reserved.
   * Copyright (c) 2012 by Delphix. All rights reserved.
+  * Copyright 2015 Gary Mills
   */
  
  /*
   * DTrace D Language Compiler
   *
*** 2333,2343 ****
      uint_t cflags, int argc, char *const argv[], FILE *fp, const char *s)
  {
          dt_node_t *dnp;
          dt_decl_t *ddp;
          dt_pcb_t pcb;
!         void *rv;
          int err;
  
          if ((fp == NULL && s == NULL) || (cflags & ~DTRACE_C_MASK) != 0) {
                  (void) dt_set_errno(dtp, EINVAL);
                  return (NULL);
--- 2334,2344 ----
      uint_t cflags, int argc, char *const argv[], FILE *fp, const char *s)
  {
          dt_node_t *dnp;
          dt_decl_t *ddp;
          dt_pcb_t pcb;
!         void *volatile rv;
          int err;
  
          if ((fp == NULL && s == NULL) || (cflags & ~DTRACE_C_MASK) != 0) {
                  (void) dt_set_errno(dtp, EINVAL);
                  return (NULL);