QMAKE_CXXFLAGS += -std=c++11 QMAKE_CXXFLAGS += -fopenmp -O2 LIBS += -lgomp -lpthread
add these lines to the .pro file
QMAKE_CXXFLAGS += -std=c++11 QMAKE_CXXFLAGS += -fopenmp -O2 LIBS += -lgomp -lpthread
add these lines to the .pro file
![Microsoft Visual C++ 與 MinGW，附圖[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)