Re: target pattern resolution problem

[Johan Bezem]

Use:
vpath %.cc $(srcdir)
and leave out all references to directories in the rules.
See the make documentation for "vpath directive" and/or the VPATH variable.
See also Paul's website at http://www.paulandlesley.org/gmake/vpath.html

HTH,

Johan Bezem
CSK Software AG

Stefan Seefeld wrote:
> 
> hi there,
> 
> I have a Makefile covering not only the current directory
> but also some subdirectories, i.e. the source code is in
> various subdirectories. I'd like to generate the object files
> such that the build tree is isomorphic to the source tree,
> i.e. there is a trivial correspondance between the object file
> name and the source file name...
> Here is a snipped of the Makefile I attempted to use:
> 
> srcdir   := ..
> 
> all:
> foo.o Console/bar.o
> 
> %.o: $(srcdir)/%.cc
>         @echo processing $^
> 
> #Console/%.o: $(srcdir)/Console/%.cc
> #
> @echo processing $^
> 
> It is my understanding that I shouldn't need a rule to explicitely
> define how to make stuff in the Console/ subdirectory. (Thus is is
> commented out above). This works indeed if I build in the source tree,
> i.e. if 'srcdir == .' In all other cases I get
> 'No rule to make target `Console/bar.o''
> 
> This problem is still present in the make 3.79.2a snapshot you sent me
> last friday...
> 
> Regards,
>                 Stefan
> 
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