qt5base-lts/mkspecs/features/mac/sdk.prf

!host_build:!isEmpty(QMAKE_MAC_SDK) {

    contains(QMAKE_MAC_SDK, .*/.*): \
        error("QMAKE_MAC_SDK can only contain short-form SDK names (eg. macosx, iphoneos)")

    QMAKE_MAC_SDK_INFO = $$system("xcodebuild -sdk $$QMAKE_MAC_SDK -version 2>/dev/null", lines)
    isEmpty(QMAKE_MAC_SDK_INFO): error("Could not resolve SDK \'$$QMAKE_MAC_SDK\'")

    defineReplace(qtMacSDKInfo): \
        return($$replace($$list($$find(QMAKE_MAC_SDK_INFO, ^$$1:)), ^$$1:(.*), \\1))

    QMAKE_MAC_SDK_PATH = $$qtMacSDKInfo(Path)

    !equals(MAKEFILE_GENERATOR, XCODE) {
        QMAKE_CFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH
        QMAKE_CXXFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH
        QMAKE_OBJECTIVE_CFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH
        QMAKE_LFLAGS += -Wl,-syslibroot,$$QMAKE_MAC_SDK_PATH
    }

    sysrootified =
    for(val, QMAKE_INCDIR_OPENGL): sysrootified += $${QMAKE_MAC_SDK_PATH}$$val
    QMAKE_INCDIR_OPENGL = $$sysrootified

    # We use xml as the output format instead of json since plutil on 10.6 does not have that option
    QMAKE_MAC_PLATFORM_NAME = $$system("plutil -convert xml1 \"$$QMAKE_MAC_SDK_PATH/SDKSettings.plist\" -o - | " \
        "PERL5LIB= xpath 'string(//key[.=\"PLATFORM_NAME\"]/following-sibling::*[1])' 2>&1 | " \
        "sed 's/.*Value: \\(.*\\)/\\1/'")

    isEmpty(QMAKE_MAC_PLATFORM_NAME): error("Could not resolve platform name for SDK '$$QMAKE_MAC_SDK'")

} else {
    # Host tools require Mac OS X >= 10.6
    QMAKE_MAC_PLATFORM_NAME = macosx
    QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
}

!equals(MAKEFILE_GENERATOR, XCODE) {
    version_min_flag = -m$${QMAKE_MAC_PLATFORM_NAME}-version-min=$$QMAKE_MACOSX_DEPLOYMENT_TARGET
    QMAKE_CFLAGS += $$version_min_flag
    QMAKE_CXXFLAGS += $$version_min_flag
    QMAKE_OBJECTIVE_CFLAGS += $$version_min_flag
    QMAKE_LFLAGS += $$version_min_flag
}