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Re: Library building 102

From: Robert P. J. Day
Subject: Re: Library building 102
Date: Thu, 26 May 2005 19:27:36 -0400 (EDT)

On Fri, 27 May 2005, Brendan Heading wrote:

> OK, I've worked out the basic idea of what I want my makefile to look like. A
> few further optimizations are in order.
> What I'd like to do is put resulting objects in a different directory from
> where the source file resides, it keeps things nice and tidy. The trouble that
> I'm having is figuring out how to do this in a nice simple way.
> If written statically, the rule to do this might be :
> objectdir/foo.o: foo/src/foo.c
> or using variables :
> $(OBJDIR)/%.o: $(FOO_SRCS)/%.c
> but this obviously breaks down as I would need a rule for each source
> directory I have. Is there a generic way I can do this for all .o and .c files
> ?
> ie something like :
> $(OBJDIR)/%.o : %.c
> except with something added so that Make knows how to find the *.c file ?
> I'm guessing this might be a job for VPATH.

or just "vpath" looking specifically for .c files.


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