[Patch, libfortran] PR 51090 Check getenv result before proceeding

[Janne Blomqvist]

Hi,

committed the patch below as obvious.

2011-11-11  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/51090
	* runtime/main.c (find_addr2line): NULL check before proceeding.

Index: main.c
===================================================================
--- main.c      (revision 181287)
+++ main.c      (working copy)
@@ -149,6 +149,8 @@ find_addr2line (void)
 #ifdef HAVE_ACCESS
 #define A2L_LEN 10
   char *path = getenv ("PATH");
+  if (!path)
+      return;
   size_t n = strlen (path);
   char ap[n + 1 + A2L_LEN];
   size_t ai = 0;


-- 
Janne Blomqvist