cmake_modules/platform.cmake
author sheepluva
Thu, 23 Jan 2014 13:56:53 +0100
changeset 10061 b7161f00a6ca
parent 9941 d33d4727b39e
child 11342 ed5a6478e710
permissions -rw-r--r--
hide complete IP of other users, when non-admin requests player info. showing the first two parts of the IP was kinda pointless to begin with (what for?) and has recently lead to increased abuse and lobby flooding due to bots collecting/posting IP tracking information


if(APPLE)
    if(${CMAKE_VERSION} VERSION_GREATER "2.8.10.2" AND
       ${CMAKE_VERSION} VERSION_LESS "2.8.12.1")
        message(FATAL_ERROR "This version of CMake is known *not* to work, please update or use a lower version")
    endif()

    set(CMAKE_FIND_FRAMEWORK "FIRST")

    #what system are we building for
    set(minimum_macosx_version $ENV{MACOSX_DEPLOYMENT_TARGET})

    #detect on which system we are: if sw_vers cannot be found for any reason (re)use minimum_macosx_version
    find_program(sw_vers sw_vers)
    if(sw_vers)
        execute_process(COMMAND ${sw_vers} "-productVersion"
                        OUTPUT_VARIABLE current_macosx_version
                        OUTPUT_STRIP_TRAILING_WHITESPACE)
        string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" current_macosx_version ${current_macosx_version})
    else()
        if(NOT minimum_macosx_version)
            message(FATAL_ERROR "sw_vers not found! Need explicit MACOSX_DEPLOYMENT_TARGET variable set")
        else()
            message("*** sw_vers not found! Fallback to MACOSX_DEPLOYMENT_TARGET variable ***")
            set(current_macosx_version ${minimum_macosx_version})
        endif()
    endif()

    #if nothing is set, we deploy only for the current system
    if(NOT minimum_macosx_version)
        set(minimum_macosx_version ${current_macosx_version})
    endif()

    #10.3 systems don't have enough processing power anyway
    #10.4 does not have @rpath support (which SDL uses)
    if(minimum_macosx_version VERSION_LESS "10.5")
        message(FATAL_ERROR "Hedgewars is not supported on your version of Mac OS X")
    endif()

    if(NOT CMAKE_OSX_ARCHITECTURES)
        if(current_macosx_version VERSION_LESS "10.6")
            #SDL is only 32 bit on older OS version
            if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "powerpc*")
                set(CMAKE_OSX_ARCHITECTURES "ppc7400")
            else()
                set(CMAKE_OSX_ARCHITECTURES "i386")
            endif()
        endif()
    endif()

    #parse this system variable and adjust only the powerpc syntax to be compatible with -P
    if(CMAKE_OSX_ARCHITECTURES)
        string(REGEX MATCH "[pP][pP][cC]+" powerpc_build "${CMAKE_OSX_ARCHITECTURES}")
        string(REGEX MATCH "[iI]386+" i386_build "${CMAKE_OSX_ARCHITECTURES}")
        string(REGEX MATCH "[xX]86_64+" x86_64_build "${CMAKE_OSX_ARCHITECTURES}")
        if(x86_64_build)
            add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
        elseif(i386_build)
            add_flag_prepend(CMAKE_Pascal_FLAGS -Pi386)
        elseif(powerpc_build)
            add_flag_prepend(CMAKE_Pascal_FLAGS -Ppowerpc)
        else()
            message(FATAL_ERROR "Unknown architecture present in CMAKE_OSX_ARCHITECTURES (${CMAKE_OSX_ARCHITECTURES})")
        endif()
        list(LENGTH CMAKE_OSX_ARCHITECTURES num_of_archs)
        if(num_of_archs GREATER 1)
            message("*** Only one architecture in CMAKE_OSX_ARCHITECTURES is supported, picking the first one ***")
        endif()
    elseif(CMAKE_SIZEOF_VOID_P MATCHES "8")
        #if that variable is not set check if we are on x86_64 and if so force it, else use default
        add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
    endif()

    #CMAKE_OSX_SYSROOT is set at the system version we are supposed to build on
    #we need to provide the correct one when host and target differ
    if(NOT CMAKE_OSX_SYSROOT AND
       NOT ${minimum_macosx_version} VERSION_EQUAL ${current_macosx_version})
        find_program(xcrun xcrun)
        if(xcrun)
            execute_process(COMMAND ${xcrun} "--show-sdk-path"
                            OUTPUT_VARIABLE current_sdk_path
                            OUTPUT_STRIP_TRAILING_WHITESPACE)
            string(REPLACE "${current_macosx_version}"
                           "${minimum_macosx_version}"
                           CMAKE_OSX_SYSROOT
                           "${current_sdk_path}")
        else()
            message("*** xcrun not found! Build will work on ${current_macosx_version} only ***")
        endif()
    endif()
    if(CMAKE_OSX_SYSROOT)
        add_flag_append(CMAKE_Pascal_FLAGS "-XR${CMAKE_OSX_SYSROOT}")
        add_flag_append(CMAKE_Pascal_FLAGS "-k-macosx_version_min -k${minimum_macosx_version}")
        add_flag_append(CMAKE_Pascal_FLAGS "-k-L${LIBRARY_OUTPUT_PATH} -Fl${LIBRARY_OUTPUT_PATH}")
    endif()

    #add user framework directory
    add_flag_append(CMAKE_Pascal_FLAGS "-Ff~/Library/Frameworks")

    #workaround older cmake versions
    if(${CMAKE_VERSION} VERSION_LESS "2.8.12")
        add_flag_append(CMAKE_C_LINK_FLAGS "-Wl,-rpath -Wl,${CMAKE_INSTALL_RPATH}")
        add_flag_append(CMAKE_CXX_LINK_FLAGS "-Wl,-rpath -Wl,${CMAKE_INSTALL_RPATH}")
        add_flag_append(CMAKE_Pascal_LINK_FLAGS "-k-rpath -k${CMAKE_INSTALL_RPATH}")
    endif()
endif(APPLE)

if(MINGW)
    #this flags prevents a few dll hell problems
    add_flag_append(CMAKE_C_FLAGS "-static-libgcc")
    add_flag_append(CMAKE_CXX_FLAGS "-static-libgcc")
endif(MINGW)

if(WIN32)
    if(NOT ${BUILD_SHARED_LIB})
        message(FATAL_ERROR "Static linking is not supported on Windows")
    endif()
endif(WIN32)

if(UNIX)
    add_flag_append(CMAKE_C_FLAGS "-fPIC")
    add_flag_append(CMAKE_CXX_FLAGS "-fPIC")
endif(UNIX)