From 95eda37e4792ed276ca3e71addabee364406d844 Mon Sep 17 00:00:00 2001
From: LaurentGom <LaurentGom@4e206d99-4929-0410-ac5d-dfc041789085>
Date: Mon, 8 Nov 2010 22:22:17 +0000
Subject: [PATCH] Fixed crash when saving PNG images with gcc

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1628 4e206d99-4929-0410-ac5d-dfc041789085
---
 src/SFML/Graphics/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/SFML/Graphics/CMakeLists.txt b/src/SFML/Graphics/CMakeLists.txt
index 9c20ecc5..585ecb57 100644
--- a/src/SFML/Graphics/CMakeLists.txt
+++ b/src/SFML/Graphics/CMakeLists.txt
@@ -97,6 +97,12 @@ endif()
 # add preprocessor symbols
 add_definitions(-DGLEW_STATIC -DSTBI_FAILURE_USERMSG)
 
+# ImageLoader.cpp must be compiled with the -fno-strict-aliasing
+# when gcc is used; otherwise saving PNGs may crash in stb_image_write
+if(COMPILER_GCC)
+    set_source_files_properties(${SRCROOT}/ImageLoader.cpp PROPERTIES COMPILE_FLAGS -fno-strict-aliasing)
+endif()
+
 # define the sfml-graphics target
 sfml_add_library(sfml-graphics
                  SOURCES ${SRC}