UNIX for Dummies Questions & Answers

Hi everybody,

I have a Makefile where a single suffix rule is defined:

Code:

.SUFFIXES:      .cpp
.cpp.o:
    ${CXX} ${CXXFLAGS} -c -o $@ $<

And I'd like to create another where an additional flag is added to compile in SMP. Right now, I have to do it like this:

Code:

interface-smp.o: interface.cpp
    ${CXX} ${CXXFLAGS} -DCOMPILE_SMP -c -o $@ interface.cpp

It seems like there must be an easier way to do this with a linking rule, but I'm not sure how. Are there any Makefile gurus out there who could give me some ideas on how to make this work?

I'd appreciate any help.

Thanks,
Zel2008

What do you mean by 'linking rule'? By the time code is linked, it's too late to do -DCOMPILE_SMP.

Argh, I meant a compiling macro! *facepalm* Can I do it with a compiling macro?