From 0b88ad24b27f1ef683261565854a681cba2500d8 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 21 Feb 2012 11:30:07 +0000
Subject: [PATCH] From Olaf Flebbe, "Macos X cleanup: I added AFAIK proper
 defaults for several Macos X Version API targets.

* In order to determine which defaults to apply, consult the  CMAKE_OSX_SYSROOT variable pointing to the used SDK, not the pure existence of an SDK.

* Defaults are now:
10.7: Support Intel 32 and 64 Bit Cocoa with imageio picture reader
10.6 + 10.5: Support Cocoa with imageio on Intel and PowerPC
10.4: Carbon, Quicktime and PowerPC

Now OSG compiles out of the box for MacOSX  10.7. , tested with gcc and clang with FlightGear."
---
 CMakeLists.txt               | 15 +++++++++------
 src/osgDB/CMakeLists.txt     |  2 --
 src/osgViewer/CMakeLists.txt |  7 ++++++-
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd327746b..0fc70e11b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -822,15 +822,18 @@ IF(APPLE)
             # This is really fragile, but CMake doesn't provide the OS system
             # 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)
-                # 64-bit compiles are not supported with Carbon. We should enable
-                # 64-bit compilation by default once osgviewer has been
-                # rewritten with Cocoa.
-                #SET(CMAKE_OSX_ARCHITECTURES "ppc;i386;ppc64;x86_64" CACHE STRING "Build architectures for OSX" FORCE)
+            IF (${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.7.sdk")
+                SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "imageio" CACHE STRING "Forced imageio default image plugin for OSX" FORCE)
+                # 64 Bit Works, PPC is not supported any more
+                SET(CMAKE_OSX_ARCHITECTURES "i386;x86_64" CACHE STRING "Build architectures for OSX" FORCE)
+                SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.7 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
+            ELSEIF(${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.5.sdk" OR ${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.6.sdk") 
+                SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "imageio" CACHE STRING "Forced imageio default image plugin for OSX" FORCE)
+                # 64-bit compiles are not supported with Carbon. 
                 SET(CMAKE_OSX_ARCHITECTURES "ppc;i386" CACHE STRING "Build architectures for OSX" FORCE)
                 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.5 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
             ELSEIF(EXISTS /Developer/SDKs/MacOSX10.4u.sdk)
+                SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "quicktime" CACHE STRING "Forced imageio default image plugin for OSX" FORCE)
                 SET(CMAKE_OSX_ARCHITECTURES "ppc;i386" CACHE STRING "Build architectures for OSX" FORCE)
                 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.4 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
             ELSE()
diff --git a/src/osgDB/CMakeLists.txt b/src/osgDB/CMakeLists.txt
index b4adbdcfe..25ac27a4d 100644
--- a/src/osgDB/CMakeLists.txt
+++ b/src/osgDB/CMakeLists.txt
@@ -127,8 +127,6 @@ IF(APPLE)
         SET(OSGDB_PLATFORM_SPECIFIC_LIBRARIES ${CARBON_LIBRARY})
     ENDIF()
  
-    SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "quicktime" CACHE STRING "standard image plugin for os x, options are quicktime, imageio")
-
     IF(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX STREQUAL "quicktime")
         ADD_DEFINITIONS(-DDARWIN_QUICKTIME)
     ELSE()
diff --git a/src/osgViewer/CMakeLists.txt b/src/osgViewer/CMakeLists.txt
index f1ba894ac..932c9d145 100644
--- a/src/osgViewer/CMakeLists.txt
+++ b/src/osgViewer/CMakeLists.txt
@@ -68,7 +68,12 @@ ELSE()
         IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
             SET(OSG_WINDOWING_SYSTEM "IOS" CACHE STRING "Windowing system type for graphics window creation, options only IOS.")
         ELSE()
-            SET(OSG_WINDOWING_SYSTEM "Carbon" CACHE STRING "Windowing system type for graphics window creation, options Carbon, Cocoa or X11.")
+            IF (${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.7.sdk" OR ${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.6.sdk" OR ${CMAKE_OSX_SYSROOT} STREQUAL "/Developer/SDKs/MacOSX10.5.sdk")
+
+                SET(OSG_WINDOWING_SYSTEM "Cocoa" CACHE STRING "Windowing system type for graphics window creation, options Carbon, Cocoa or X11.")
+            ELSE()
+                SET(OSG_WINDOWING_SYSTEM "Carbon" CACHE STRING "Windowing system type for graphics window creation, options Carbon, Cocoa or X11.")
+            ENDIF()
         ENDIF()
 
     ELSE()