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How to use -isystem for include path instead of -I?

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  • A Offline
    A Offline
    Adeel Asghar
    wrote on last edited by
    #1

    If I use INCLUDEPATH in .pro file then qmake is using -I during the compilation but I want to use -isystem since I don't want to get the warning messages from those headers. How can I achieve this with qmake?

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    • Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Add your path also to QMAKE_DEFAULT_INCDIRS should work.

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
      Visit the Qt Academy at https://academy.qt.io/catalog

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      • A Offline
        A Offline
        Adeel Asghar
        wrote on last edited by
        #3

        Thanks but that doesn't work.
        Following worked,

        QMAKE_CXXFLAGS += -isystem includepath
        
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