From bd864f3f8f3775afdbe51752515834f6a2b40b20 Mon Sep 17 00:00:00 2001
From: Michael Jumper <zhangmaike@users.sourceforge.net>
Date: Sun, 1 Apr 2012 19:25:33 -0700
Subject: [PATCH] Check for pngstruct.h

---
 libguac/src/protocol.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libguac/src/protocol.c b/libguac/src/protocol.c
index 47da5860..9176c491 100644
--- a/libguac/src/protocol.c
+++ b/libguac/src/protocol.c
@@ -50,6 +50,10 @@
 #include <string.h>
 #include <errno.h>
 
+#ifdef HAVE_PNGSTRUCT_H
+#include <pngstruct.h>
+#endif
+
 #include <cairo/cairo.h>
 
 #include <sys/types.h>