From 53926cba29aa3970105daf6a26430f111b3a17d8 Mon Sep 17 00:00:00 2001
From: ajtribick <ajtribick@10d76133-bd44-0410-b00f-95d021917061>
Date: Tue, 1 May 2012 21:06:09 +0000
Subject: [PATCH] Add missing zlib.h for libpng15.

git-svn-id: https://svn.code.sf.net/p/celestia/code/trunk/celestia@5204 10d76133-bd44-0410-b00f-95d021917061
---
 src/celestia/imagecapture.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/celestia/imagecapture.cpp b/src/celestia/imagecapture.cpp
index 05e8f3fb..4fbf2912 100644
--- a/src/celestia/imagecapture.cpp
+++ b/src/celestia/imagecapture.cpp
@@ -36,11 +36,14 @@ extern "C" {
 #define png_jmpbuf(png_ptr) png_ptr->jmpbuf
 #endif
 
-// Define various expansion transformations for old versions of libpng
 #if PNG_LIBPNG_VER < 10004
+// Define various expansion transformations for old versions of libpng
 #define png_set_palette_to_rgb(p)  png_set_expand(p)
 #define png_set_gray_1_2_4_to_8(p) png_set_expand(p)
 #define png_set_tRNS_to_alpha(p)   png_set_expand(p)
+#elif PNG_LIBPNG_VER >= 10500
+// libpng-1.5 include does not pull in zlib.h
+#include "zlib.h"
 #endif
 
 using namespace std;