INCLUDEPATH += $$PWD DEPENDPATH += $$PWD HEADERS += $$PWD/qtsingleapplication.h SOURCES += $$PWD/qtsingleapplication.cpp win32:SOURCES += $$PWD/qtsingleapplication_win.cpp mac:SOURCES += $$PWD/qtsingleapplication_mac.cpp mac:LIBS += -framework CoreFoundation win32:LIBS += user32.lib unix:!mac { SOURCES += $$PWD/qtsingleapplication_x11.cpp CONFIG += x11 } win32:contains(TEMPLATE, lib):contains(CONFIG, shared) { DEFINES += QT_QTSINGLEAPPLICATION_EXPORT=__declspec(dllexport) }