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Diffstat (limited to 'malloc')
-rw-r--r--malloc/malloc.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 9a45707ee7..1120d4df84 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -270,6 +270,10 @@
   or other mallocs available that do this.
 */
 
+#ifndef MALLOC_DEBUG
+#define MALLOC_DEBUG 0
+#endif
+
 #ifdef NDEBUG
 # define assert(expr) ((void) 0)
 #else
@@ -4477,7 +4481,7 @@ mtrim (mstate av, size_t pad)
 
                 if (size > psm1)
                   {
-#ifdef MALLOC_DEBUG
+#if MALLOC_DEBUG
                     /* When debugging we simulate destroying the memory
                        content.  */
                     memset (paligned_mem, 0x89, size & ~psm1);