intel_icc {
    # ICC does not support C++14 yet
} else: clang {
    # Clang has supported -std=c++1y since version 3.2
    greaterThan(QT_CLANG_MAJOR_VERSION, 3)|greaterThan(QT_CLANG_MINOR_VERSION, 1) {
        QMAKE_CXXFLAGS_CXX11 = -std=c++1y
        QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y
    }
    # Unknown how long Apple Clang has supported -std=c++1y, but at least since XCode 5.0
    greaterThan(QT_APPLE_CLANG_MAJOR_VERSION, 4) {
        QMAKE_CXXFLAGS_CXX11 = -std=c++1y
        QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y
    }
} else: gcc {
    # GCC has supported -std=c++1y since 4.8
    greaterThan(QT_GCC_MAJOR_VERSION, 4)|greaterThan(QT_GCC_MINOR_VERSION, 7) {
        QMAKE_CXXFLAGS_CXX11 = -std=c++1y
        QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y
    }
}

# Delegate to c++11.prf
include(c++11.prf)