[patch] stabsread, guard against null.

[msnyder@sonic.net]

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If strchr returns null, we're going to crash.


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2007-08-29  Michael Snyder  <msnyder@access-company.com>

	* stabsread.c (patch_block_status): Guard against null.

Index: stabsread.c
===================================================================
RCS file: /cvs/src/src/gdb/stabsread.c,v
retrieving revision 1.97
diff -p -r1.97 stabsread.c
*** stabsread.c	23 Aug 2007 18:08:38 -0000	1.97
--- stabsread.c	29 Aug 2007 21:18:10 -0000
***************
*** 45,50 ****
--- 45,51 ----
  #include "doublest.h"
  #include "cp-abi.h"
  #include "cp-support.h"
+ #include "gdb_assert.h"
  
  #include <ctype.h>
  
*************** patch_block_stabs (struct pending *symbo
*** 359,364 ****
--- 360,366 ----
  	{
  	  name = stabs->stab[ii];
  	  pp = (char *) strchr (name, ':');
+ 	  gdb_assert (pp);	/* Must find a ':' or game's over.  */
  	  while (pp[1] == ':')
  	    {
  	      pp += 2;