macmainwindow.pro Example File

 TEMPLATE        = app
 TARGET          = macmainwindow

 CONFIG          += qt warn_on console

 OBJECTIVE_SOURCES += macmainwindow.mm
 SOURCES += main.cpp
 HEADERS += macmainwindow.h

 build_all:!build_pass {
     CONFIG -= build_all
     CONFIG += release
 }

 LIBS += -framework Cocoa -framework Carbon

 # install
 mac {
 target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/mainwindows/macmainwindow
 sources.files = $$SOURCES  *.pro *.html
 sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/mainwindows/macmainwindow
 INSTALLS += target sources
 }
 QT += widgets widgets