QMAKE_CXXFLAGS += -Wextra -Wmost QMAKE_CXXFLAGS += -Werror #All includes from the third-party directory will not warn. QMAKE_CXXFLAGS += --system-header-prefix=third-party QMAKE_CXXFLAGS += -Wshadow QMAKE_CXXFLAGS += -Wold-style-cast QMAKE_CXXFLAGS += -Wnon-virtual-dtor QMAKE_CXXFLAGS += -Wpedantic QMAKE_CXXFLAGS += -Wcast-align -Wunused -Woverloaded-virtual -Wformat=2