Template

[Matthias Oltmanns]

Am Mon, 2003-04-07 um 15.18 schrieb Eduardo Cesar Cabrera Flores:
 
 
> >
> > i'm not sure if you asking for "How to write a makefile". If so i would
> > suggest to read first info-pages via "info make".
> 
> nop, i've already known how to do that!

Ok.

> 
> If i got a lot of sources definition files (.C or .cc or .cpp) some of
> them are template definitions and some aren't. i have to compile with "-c"
> option those files that do not have any template, and then link all
> together with the second phase?
> 
> v.gr.
> 	Main.C Base.C Base.h Derived.C Derived.h Derived2.C Derived2.h
> 	Template.C Template.h Template2.C Template2.h
> 
> How do i compile with a makefile to only compile those files that were
> modified & not to compile the whole project properly with a makefile?
> 

I'm sure there are many ways to solve this.

One of them i would go is:

# Your main executable depends on the following source files
SRC = Main.C Base.C Derived.C Derived2.C
OBJ = $(SRC:.C=.o)

# your main target
all : $(OBJ)
	$(LINK.cc) -o <name_of_exe> $+ $(LIBS)

# how to compile
%.o: %.C
	$(COMPILE.cc) $(CPPINCLUDES) -o $@ $<

## make dependencies based on header files
DEPFILE = Makefile.dep
DEPEND.cc = $(filter-out -c, $(COMPILE.cc)) -MM -MG

depend.removed:
	-@$(RM) -r $(DEPFILE)

depend.%o: %.C
	@$(DEPEND.cc) $(CPPINCLUDES) -o $(subst depend.,,$@) $< >> $(DEPFILE)

depend: depend.removed $(addprefix depend., $(OBJ))

-include $(DEPFILE)

hope that helps

cu
Matthias