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Re: speed up 'configure' by removing HAVE_RAW_DECL_*

From: Ralf Wildenhues
Subject: Re: speed up 'configure' by removing HAVE_RAW_DECL_*
Date: Fri, 1 Apr 2011 14:05:55 +0200
User-agent: Mutt/1.5.20 (2010-08-04)

* Bruno Haible wrote on Fri, Apr 01, 2011 at 12:44:29PM CEST:
> > > The fix is to hide this definition from 'aclocal'. I'm applying this fix.
> > > Not pretty, but it works.
> > 
> > Thanks -- I wasn't aware that aclocal only did a heuristic search for
> > definitions.
> I also expected that 'aclocal' was more robust than that. Maybe it's due to
> the versions of 'aclocal' and 'autoconf' that you use?

No, even the newest one works this way, see $ac_defun_rx in aclocal.in.
It's fairly tricky to change this, IIRC.  aclocal does two things: look
for macro definitions and for macro usage.  The former would seem quite
fragile when done by autom4te tracing because we might be scanning
conflicting sets of third-party files.


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