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Re: [PATCH] AC_CONFIG_MACRO_DIRS: improve tracing and add sanity checks

From: Nick Bowler
Subject: Re: [PATCH] AC_CONFIG_MACRO_DIRS: improve tracing and add sanity checks
Date: Tue, 13 Nov 2012 16:37:03 -0500
User-agent: Mutt/1.5.21 (2010-09-15)

On 2012-11-13 22:37 +0200, Adrian Bunk wrote:
> On Tue, Nov 13, 2012 at 02:44:08PM -0500, Nick Bowler wrote:
> > On 2012-11-13 20:51 +0200, Adrian Bunk wrote:
> > > libtool will access the same information through a new way that has been 
> > > implemented by this patch.
> > 
> > But the old way will have to stick around for compatibility with older
> > packages that have not been updated to the New Way.  So since we have to
> > keep the old way around anyway, why not just continue to use the old way
> > for old packages?
> >...
> Wrong.
> libtool does not have to support the old way of manually searching for 
> AC_CONFIG_MACRO_DIR in the future, if it requires autoconf >= 2.70 it
> can use the new way of tracing AC_CONFIG_MACRO_DIR_TRACE exclusively 
> even for old packages.

No, it cannot use AC_CONFIG_MACRO_DIR_TRACE exclusively, since not all
packages use AC_CONFIG_MACRO_DIR in the first place!

Nick Bowler, Elliptic Technologies (

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