OSX/cmake: workaround for getting right LC_VERSION_MIN_MACOSX with makefiles

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d8ae92d59d13661d57928627a57d2f55d1e8113d..7da2da4d61f978ce303ba39c2ce1f482ae840b62 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -312,6 +312,10 @@ if(APPLE)
                execute_process(COMMAND xcodebuild -version OUTPUT_VARIABLE XCODE_VERS_BUILD_NR)
                string(SUBSTRING "${XCODE_VERS_BUILD_NR}" 6 3 XCODE_VERSION) # truncate away build-nr
                unset(XCODE_VERS_BUILD_NR)
+               # force CMAKE_OSX_DEPLOYMENT_TARGET for makefiles, will not work else ( cmake bug ? )
+               set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}" )
+               set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}" )
+               add_definitions ("-DMACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
        endif()
        
        message(STATUS "Detected Xcode-version: " ${XCODE_VERSION})