echo 'Creating brew-patch.diff'
cat << EOF >> brew-patch.diff

diff --git a/src/utils.cpp b/src/utils.cpp
index e2f538b..1df5fb3 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -22,6 +22,7 @@
  */

 #include <stdio.h>
+#include <stdlib.h>
 #include <string>
 #include <map>
 #include "strtokenizer.h"
EOF