cmake_modules/platform.cmake
author koda
Mon, 08 Jul 2013 12:17:03 +0200
changeset 9341 4dfebad83d51
parent 9339 14f5f3a1e2f7
child 9517 217eacb69395
permissions -rw-r--r--
just set these flags directly
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if(APPLE)
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    set(CMAKE_FIND_FRAMEWORK "FIRST")
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    #what system are we building for
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    set(minimum_macosx_version $ENV{MACOSX_DEPLOYMENT_TARGET})
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    #detect on which system we are: if sw_vers cannot be found for any reason (re)use minimum_macosx_version
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    find_program(sw_vers sw_vers)
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    if(sw_vers)
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        execute_process(COMMAND ${sw_vers} "-productVersion"
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                        OUTPUT_VARIABLE current_macosx_version
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                        OUTPUT_STRIP_TRAILING_WHITESPACE)
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        string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" current_macosx_version ${current_macosx_version})
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    else()
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        if(NOT minimum_macosx_version)
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            message(FATAL_ERROR "sw_vers not found! Need explicit MACOSX_DEPLOYMENT_TARGET variable set")
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        else()
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            message("*** sw_vers not found! Fallback to MACOSX_DEPLOYMENT_TARGET variable ***")
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            set(current_macosx_version ${minimum_macosx_version})
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        endif()
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    endif()
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    #if nothing is set, we deploy only for the current system
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    if(NOT minimum_macosx_version)
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        set(minimum_macosx_version ${current_macosx_version})
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    endif()
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    #lower systems don't have enough processing power anyway
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    if (minimum_macosx_version VERSION_LESS "10.4")
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        message(FATAL_ERROR "Hedgewars is not supported on Mac OS X pre-10.4")
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    endif()
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    #workaround for http://playcontrol.net/ewing/jibberjabber/big_behind-the-scenes_chang.html#SDL_mixer (Update 2)
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    if(current_macosx_version VERSION_EQUAL "10.4")
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        find_package(SDL_mixer REQUIRED)
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        set(DYLIB_SMPEG "-dylib_file @loader_path/Frameworks/smpeg.framework/Versions/A/smpeg:${SDLMIXER_LIBRARY}/Versions/A/Frameworks/smpeg.framework/Versions/A/smpeg")
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        set(DYLIB_MIKMOD "-dylib_file @loader_path/Frameworks/mikmod.framework/Versions/A/mikmod:${SDLMIXER_LIBRARY}/Versions/A/Frameworks/mikmod.framework/Versions/A/mikmod")
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        add_flag_append(CMAKE_C_FLAGS "${DYLIB_SMPEG} ${DYLIB_MIKMOD}")
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        add_flag_append(CMAKE_CXX_FLAGS "${DYLIB_SMPEG} ${DYLIB_MIKMOD}")
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        add_flag_append(CMAKE_Pascal_FLAGS "-k${DYLIB_SMPEG} -k${DYLIB_MIKMOD}")
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    endif()
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    if(NOT CMAKE_OSX_ARCHITECTURES)
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        if(current_macosx_version VERSION_LESS "10.6")
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            #SDL is only 32 bit on lower OS
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            if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "powerpc*")
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                set(CMAKE_OSX_ARCHITECTURES "ppc7400")
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            else()
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                set(CMAKE_OSX_ARCHITECTURES "i386")
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            endif()
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        endif()
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    endif()
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    #parse this system variable and adjust only the powerpc syntax to be compatible with -P
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    if(CMAKE_OSX_ARCHITECTURES)
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        string(REGEX MATCH "[pP][pP][cC]+" powerpc_build "${CMAKE_OSX_ARCHITECTURES}")
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        string(REGEX MATCH "[iI]386+" i386_build "${CMAKE_OSX_ARCHITECTURES}")
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        string(REGEX MATCH "[xX]86_64+" x86_64_build "${CMAKE_OSX_ARCHITECTURES}")
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        if(x86_64_build)
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            add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
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        elseif(i386_build)
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            add_flag_prepend(CMAKE_Pascal_FLAGS -Pi386)
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        elseif(powerpc_build)
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            add_flag_prepend(CMAKE_Pascal_FLAGS -Ppowerpc)
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        else()
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            message(FATAL_ERROR "Unknown architecture present in CMAKE_OSX_ARCHITECTURES (${CMAKE_OSX_ARCHITECTURES})")
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        endif()
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        list(LENGTH CMAKE_OSX_ARCHITECTURES num_of_archs)
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        if(num_of_archs GREATER 1)
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            message(${WARNING} "Only one architecture in CMAKE_OSX_ARCHITECTURES is currently supported, picking the first one")
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        endif()
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    elseif(CMAKE_SIZEOF_VOID_P MATCHES "8")
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        #if that variable is not set check if we are on x86_64 and if so force it, else use default
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        add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
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    endif()
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    #CMAKE_OSX_SYSROOT is set at the system version we are supposed to build on
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    #we need to provide the correct one when host and target differ
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    if(NOT ${minimum_macosx_version} VERSION_EQUAL ${current_macosx_version})
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        if(minimum_macosx_version VERSION_EQUAL "10.4")
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            set(CMAKE_OSX_SYSROOT "/Developer/SDKs/MacOSX10.4u.sdk/")
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            set(CMAKE_C_COMPILER "/Developer/usr/bin/gcc-4.0")
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            set(CMAKE_CXX_COMPILER "/Developer/usr/bin/g++-4.0")
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        else()
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            string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" sdk_version ${minimum_macosx_version})
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            set(CMAKE_OSX_SYSROOT "/Developer/SDKs/MacOSX${sdk_version}.sdk/")
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        endif()
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        add_flag_append(CMAKE_Pascal_FLAGS "-XR${CMAKE_OSX_SYSROOT}")
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        add_flag_append(CMAKE_Pascal_FLAGS "-k-macosx_version_min -k${minimum_macosx_version}")
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    endif()
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    #add user framework directory
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    add_flag_append(CMAKE_Pascal_FLAGS "-Ff~/Library/Frameworks")
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endif(APPLE)
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if(MINGW)
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    #this flags prevents a few dll hell problems
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    add_flag_append(CMAKE_C_FLAGS "-static-libgcc")
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    add_flag_append(CMAKE_CXX_FLAGS "-static-libgcc")
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endif(MINGW)
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if(WIN32)
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    if(NOT ${BUILD_SHARED_LIB})
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        message(FATAL_ERROR "Static linking is not supported on Windows")
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    endif()
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endif(WIN32)