Re: Debugging Make

[Ken Smith]

That almost does what I want.  However, I would like to see nothing but 
plain text in this output, no make variables.

Ken

Noel Yap wrote:

> I usually use "gmake -npqr" when debugging makefiles.  IIRC, it's the 
> "-p" that's the feature you describe below.
>
> HTH,
> Noel
>
> Ken Smith wrote:
>
> > While debugging make files, I have frequently thought it might be 
> > nice to see what the files contain after make processes them.  In 
> > particular, I would like to see what the rules and variables look 
> > like.  Here is an example of a situation where I think this would be 
> > useful.
> >
> > ---BEGIN---makefile
> > $(SOMEPREFIX)%.new : %.in
> >
> > include anotherfile.mk
> > ---END---makefile
> >
> > ---BEGIN---anotherfile.mk
> > SOMEPREFIX = prefix
> > ---END---anotherfile.mk
> >
> > When make runs, we'll have this for the definition of the pattern rule.
> >
> > ---BEGIN---makefile.out
> > %.new : %.in
> > ---END---makefile.out
> >
> > If we had included anotherfile.mk at the top of makefile, we would 
> > instead have this.
> > ---BEGIN---makefile.out
> > prefix%.new : %.in
> > ---END---makefile.out
> >
> > Sometimes, errors like this are hard to detect.  I would like to be 
> > able to run my makefiles through some processor (make -someflag > 
> > makefile.out) and see what make thinks I'm telling it.  here's more 
> > straightforward example.
> >
> > ---BEGIN---makefile
> > a=target
> > b=$(a)
> > c=$(b)
> > target=hi
> > d=$($(c))
> > ---END---makefile
> >
> > After running through the debugging feature I'm talking about, 
> > makefile.out would contain the following.
> >
> > ---BEGIN---makefile.out
> > a=target
> > b=target
> > c=target
> > target=hi
> > d=hi
> > ---END---makefile.out
> >
> > Does something like this already exist?  If it doesn't could it be 
> > added to GNU make?
> >
> > Ken Smith
> >
> >
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