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Re: pointless automake error about libtool libraries

From: Ralf Wildenhues
Subject: Re: pointless automake error about libtool libraries
Date: Mon, 21 Aug 2006 21:03:58 +0200
User-agent: Mutt/1.5.12-2006-07-14

* Bruno Haible wrote on Mon, Aug 21, 2006 at 08:53:42PM CEST:
> Ralf Wildenhues wrote:
> > 
> > or from configure.ac:
> >   AC_SUBST([gl_noinst_ltlibs], [libfoo.la])
> Uuh, after what you said above, this is betting on automake's unability
> to optimize AC_SUBSTed variables. What if automake improves...? Seems
> as dangerous to me as the first approach.

Actual AC_SUBSTed variables @substituted@ cannot be optimized: at
automake time, you can not know anything about them.  With makefile
macros $(variable), there is a chance that an improved automake does
something different here.

> > But say, do you have two tools writing in the same Makefile.am (or does
> > one include the other)?
> Actually I'm lucky: the second tool (gnulib-tool) "sees" the output of
> the first tool (my hand), so I can actually handle this case in the
> second tool.

Good.  Thanks for solving it this way.


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