Pick correct include file between Qt4 and Qt5

[rajil.s]

Hello,

I want to load the correct qwt.prf file based on the Qt version. The following code in the .pro file loads both the Qt4 and Qt5 files.

lessThan(QT_MAJOR_VERSION, 5) {
    message("qt4")
    include (/usr/share/qt4/mkspecs/features/qwt.prf)
}
 
 
greaterThan(QT_MAJOR_VERSION, 4) {
    message("qt5")
    include (/usr/lib64/qt5/mkspecs/features/qwt.prf)
}

lessThan(QT_MAJOR_VERSION, 5) {
    message("qt4")
    include (/usr/share/qt4/mkspecs/features/qwt.prf)
}


greaterThan(QT_MAJOR_VERSION, 4) {
    message("qt5")
    include (/usr/lib64/qt5/mkspecs/features/qwt.prf)
}

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Is there any way to make this work?