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Re: i have a new feature. anybody want it?


From: Ralf Wildenhues
Subject: Re: i have a new feature. anybody want it?
Date: Wed, 17 Feb 2010 20:59:21 +0100
User-agent: Mutt/1.5.20 (2009-10-28)

* Jay G. Scott wrote on Wed, Feb 17, 2010 at 05:34:29PM CET:
> On Wed, Feb 17, 2010 at 08:15:58AM +0100, Ralf Wildenhues wrote:
> > * Jay G. Scott wrote on Mon, Feb 15, 2010 at 07:07:44PM CET:
> > > 
> > > while working on GAMESS (a quantum chemistry program) i ran in
> > > to a situation that made it clear that individual source files
> > > needed to be compiled with different optimization options.
> > > automake doesn't support that.
> > 
> > Yes, it does, by way of per-target flags like foo_CFLAGS, foo_FFLAGS,
> 
> right, that's per-TARGET.  not per OBJECT FILE (or source file)
> which is what i need.

One can emulate per-object file by using convenience archives for sets
of files that need a special per-target flag.

I agree that it's a bit ugly (and has some overhead) to do so, but at
the time Automake invented this, no efficient portable method for
per-object file flags was known, and moreover, object file names are an
internal detail of Automake (for several reasons, e.g., renaming due to
per-target compile flags, length limitations, subdir-objects, KnR
support).

Cheers,
Ralf




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