Index: ext/gd/libgd/gd_compat.c
--- ext/gd/libgd/gd_compat.c.orig	2009-08-09 15:15:45 +0200
+++ ext/gd/libgd/gd_compat.c	2010-01-19 21:20:30 +0100
@@ -5,6 +5,7 @@
 #endif
 
 #ifdef HAVE_GD_JPG
+# include <stdio.h>
 # include <jpeglib.h>
 #endif