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Re: Difficulty building older Emacsen: <tab> characters seemingly foulin

From: Alan Mackenzie
Subject: Re: Difficulty building older Emacsen: <tab> characters seemingly fouling things up.
Date: Sun, 14 Jun 2015 19:22:44 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

Hello, David.

On Sat, Jun 06, 2015 at 05:13:12PM +0200, David Engster wrote:
> Eli Zaretskii writes:
> >> Date: Sat, 06 Jun 2015 18:00:36 +0300
> >> From: Eli Zaretskii <address@hidden>
> >> Cc: address@hidden

> >> Looks like line 143 should have had a backslash at its end, but
> >> doesn't.  Likewise, line 144 should have ended with a backslash I
> >> don't understand how did it happen, as lib-src/Makefile.in from Emacs
> >> 23.1 have these present.

> > I seem to remember that the behavior of cpp changed at some point, and
> > we needed to invoke it with the -traditional switch in order to avoid
> > some trouble, perhaps precisely this one.  (You may remember that in
> > those days we used cpp to process Makefile.in files into Makefiles.)

> > So perhaps reconfigure with "CPP='gcc -E -traditional' or somesuch.

> Yes, one needs this change to compile older Emacsen:

>   http://article.gmane.org/gmane.emacs.diffs/102980

Thanks, that tip was very useful indeed.

> Building older Emacsen can be quite frustrating. I think I also had
> problems with linking crt1.o or somesuch when creating older Emacs
> binaries for the Buildbot.

I've managed successfully to rebuild 22.1, 22.2, 22.3,  23.2, 23.3,
and 24.2.  The more recent versions were OK anyway.

I failed on 23.1 (which can't find the external symbol
'XRenderQueryExtension'), on 23.4 (which builds OK, but freezes with 100%
CPU at startup), on 24.1 (some problem with `gets' in md5.c).

> -David

Alan Mackenzie (Nuremberg, Germany).

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