2006-04-24  Jakub Jelinek  <jakub@redhat.com>

	* malloc/arena.c (ptmalloc_init): Call mALLOPt with
	DEFAULT_CHECK_ACTION if MALLOC_CHECK_ env var contains an empty
	string.

--- libc/malloc/arena.c	6 Mar 2006 06:18:35 -0000	1.20
+++ libc/malloc/arena.c	24 Apr 2006 08:54:16 -0000
@@ -552,7 +552,7 @@ ptmalloc_init (void)
   s = getenv("MALLOC_CHECK_");
 #endif
   if(s) {
-    if(s[0]) mALLOPt(M_CHECK_ACTION, (int)(s[0] - '0'));
+    mALLOPt(M_CHECK_ACTION, s[0] ? (int)(s[0] - '0') : DEFAULT_CHECK_ACTION);
     if (check_action != 0)
       __malloc_check_init();
   }