From ea5af1d010e89e03c4f12bf5d008454818eec2ef Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Wed, 10 Mar 2010 11:09:55 +0000
Subject: [PATCH] From Nico Krulthof and Jori Torres, additions for detecting
 OSX 10.6 SDK and setting variable defaults accordingly.

---
 CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index df1f4b1ac..d3c6c9408 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -694,7 +694,12 @@ IF(APPLE)
         # version information we need. (Darwin versions can be changed
         # independently of OS X versions.)
         # It does look like CMake handles the CMAKE_OSX_SYSROOT automatically.
-        IF(EXISTS /Developer/SDKs/MacOSX10.5.sdk)
+        IF(EXISTS /Developer/SDKs/MacOSX10.6.sdk)
+            SET(CMAKE_OSX_ARCHITECTURES "i386;x86_64" CACHE STRING "Build architectures for OSX" FORCE)
+            SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.6 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
+            SET(OSG_WINDOWING_SYSTEM "Cocoa" CACHE STRING "Forced Cocoa windowing system in 64 bits snow leopard"  FORCE)
+            SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "imageio " CACHE STRING "Forced imageio default image plugin for OSX in 64 bits snow leopard" FORCE)
+        ELSEIF(EXISTS /Developer/SDKs/MacOSX10.5.sdk)
             # 64-bit compiles are not supported with Carbon. We should enable 
             # 64-bit compilation by default once osgviewer has been 
             # rewritten with Cocoa.