sed -i Makefile -e "s|CXXFLAGS:=|CXXFLAGS:= $CXXFLAGS|"
# fix default screen scaler and resolution
sed -i systemstub_sdl.cpp -e 's|_scaler = 2;|_scaler = 0;|'
sed -i Makefile -e "s|CXXFLAGS:=|CXXFLAGS:= $CXXFLAGS|"
# fix default screen scaler and resolution
sed -i systemstub_sdl.cpp -e 's|_scaler = 2;|_scaler = 0;|'