--- libmalloc/libmalloc-374.120.1/private/malloc_implementation.h
+++ libmalloc/libmalloc-409.40.6/private/malloc_implementation.h
@@ -28,6 +28,10 @@
 
 #ifndef _MALLOC_IMPLEMENTATION_H_
 #define _MALLOC_IMPLEMENTATION_H_
+
+#include <mach/boolean.h>
+#include <stdbool.h>
+#include <stddef.h>
 
 
 /*********	Libsystem initializers ************/