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-rw-r--r--malloc/malloc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/malloc/malloc.h b/malloc/malloc.h
index 0f99e837c3..1340aa15bc 100644
--- a/malloc/malloc.h
+++ b/malloc/malloc.h
@@ -122,6 +122,7 @@ extern struct mallinfo mallinfo __MALLOC_P ((void));
 #define M_MMAP_THRESHOLD    -3
 #define M_MMAP_MAX          -4
 #define M_CHECK_ACTION      -5
+#define M_PERTURB	    -6
 
 /* General SVID/XPG interface to tunable parameters. */
 extern int mallopt __MALLOC_P ((int __param, int __val));