diff -r 99a2017746c0 Extensions/PngDC/PngDC.cpp
--- a/Extensions/PngDC/PngDC.cpp	Wed Jan 30 05:28:12 2013 +1100
+++ b/Extensions/PngDC/PngDC.cpp	Tue Apr 16 01:59:10 2013 +1000
@@ -20,6 +20,7 @@
 #include "PngDC.h"
 
 #include <png.h>
+#include <string.h>
 
 #include <config-endian.h>