On 1/26/06, Dima Sorkin <dima.sorkin@xxxxxxxxx> wrote: > On 1/26/06, Peng Yu wrote: > > Suppose I have a file "main.cc", if I run the following command "g++ > > -MM main.cc, I end up with following rule "main.o: main.cc main.h". > > > > What if I want something like the following contents? > > #################### > > main-g.o: main.cc main.h > > $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -g -c -o $@ $< > > > > main-o.o: main.cc main.h > > $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -O3 -c -o $@ $< > > #################### > Hi. > This is not GCC question, but MAKE question ( GNU-MAKE ). > You don't need to write these lines, MAKE performs the calls automatically. > You only change the CXXFLAGS (and etc.) variables, depending on what > compiling options you want. > > Example for makefile: > --------------------------------------------- Makefile: > If ($(debug_mode),on) > CXXFLAGS := $(TARGET_ARCH) -g > else > .... > end > include gcc_generated_dependencies.make > > ------------------------------------------------- > gcc_generated_dependencies.make: > # these lines generated with g++ > main.o : main.c main.h > ------------------------------------------------- > > I don't sure I use the correct MAKE syntax. Please read it's docs. > The above method will replace old version ones with new version ones. What if I want to keep both versions like main-g.o and main-o.o? Thanks, Peng
