if (NOT APPLE)

    configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"

                   "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"

                    IMMEDIATE @ONLY)

    add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")

endif()

if (APPLE)

    find_package(Qt4 REQUIRED QUIET)

    find_package(SDL REQUIRED)

    find_package(SDL_image REQUIRED)

    find_package(SDL_net REQUIRED)

    find_package(SDL_ttf REQUIRED)

    find_package(SDL_mixer REQUIRED)

    find_package(OggVorbis REQUIRED)

    if(NOT NOAUTOUPDATE)

        find_package(Sparkle) #needed for SPARKLE_FOUND variable

        #needed because the 'if' clause in the script prints silly policy warnings

        if(${SPARKLE_FOUND})

            set(SPARKLE_FOUND 1)

        else()

            set(SPARKLE_FOUND 0)

        endif()

    endif()

    #use the associated tool from the libraries we've selected

    string(REGEX REPLACE "(.*)/include.*" "\\1" qt_base_dir "${QT_INCLUDE_DIR}")

    #remove the ";-framework Cocoa" from the SDL_LIBRARY variable

    string(REGEX REPLACE "(.*);-.*" "\\1" sdl_library_only "${SDL_LIBRARY}")

    if(NOT NOPNG)

        #get the neme of the library (harmelss if it is static)

        string(REGEX REPLACE ".*/(.*)$" "\\1" PNG_LIBNAME "${PNG_LIBRARY}")

    endif()

    set(frameworks_dir ${CMAKE_INSTALL_PREFIX}/${target_library_install_dir})

    if(${BUILD_ENGINE_LIBRARY})

        set(engine_full_path "${frameworks_dir}/${CMAKE_SHARED_LIBRARY_PREFIX}hwengine${CMAKE_SHARED_LIBRARY_SUFFIX}")

    else()

        set(engine_full_path "${CMAKE_INSTALL_PREFIX}/hwengine${CMAKE_EXECUTABLE_SUFFIX}")

    endif()

    #this tool is present in qt 4.5 but only if you compile from sources

    #from qt 4.6 is present also in the binary version

    find_program(macdeployqt_executable NAMES macdeployqt macdeployqt-mac PATHS ${qt_base_dir}/bin)

    if(NOT macdeployqt_executable)

        message(FATAL_ERROR "The utility macdeployqt is required to create the bundle (seached: ${qt_base_dir})")

    else()

        message(STATUS "Found macdeployqt: ${macdeployqt_executable}")

    endif()

    #dummy target, we're interested in the postscript file

    add_custom_target(bundle)

    set_target_properties(bundle PROPERTIES POST_INSTALL_SCRIPT ${CMAKE_CURRENT_BINARY_DIR}/CreateMacBundle.cmake)

    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CreateMacBundle.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/CreateMacBundle.cmake)

endif()