add missing headers to malloc.h

malloc.c

@@ -9,8 +9,6 @@
 #include <unistd.h>
 #include <pthread.h>
 
-#include <malloc.h>
-
 #include "third_party/libdivide.h"
 
 #include "malloc.h"

malloc.h

@@ -1,6 +1,10 @@
 #ifndef ALLOCATOR_H
 #define ALLOCATOR_H
 
+#include <stdio.h>
+
+#include <malloc.h>
+
 #ifndef H_MALLOC_PREFIX
 #define h_malloc malloc
 #define h_calloc calloc