Index: src/OFFile.m
==================================================================
--- src/OFFile.m
+++ src/OFFile.m
@@ -15,10 +15,11 @@
  */
 
 #include "config.h"
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <stdarg.h>
 #include <unistd.h>
 
 #include <sys/types.h>