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From - Thu Jan 21 11:48:15 1999
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Message-ID: <36A70897.32F60E81@oranda.demon.co.uk>
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Date: Thu, 21 Jan 1999 10:59:35 +0000
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From: "Gary V. Vaughan" <gvaughan@oranda.demon.co.uk>
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Organization: Aethos Communication Systems Ltd.
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X-Mailer: Mozilla 4.5 [en] (WinNT; I)
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To: Akim Demaille <demaille@inf.enst.fr>
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CC: Alexandre Oliva <oliva@dcc.unicamp.br>, Erez Zadok <ezk@cs.columbia.edu>,
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bug-libtool@gnu.org, automake@gnu.org
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Subject: Re: lazy question
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References: <199901202104.QAA04372@shekel.mcl.cs.columbia.edu> <or1zkpr5tq.fsf@araguaia.dcc.unicamp.br> <qylu2xkq5l6.fsf@quasimodo.enst.fr>
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Akim Demaille wrote:
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>
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> >>>>> "Alexandre" == Alexandre Oliva <oliva@dcc.unicamp.br> writes:
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>
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> Alexandre> On Jan 20, 1999, Erez Zadok <ezk@cs.columbia.edu> wrote:
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> >> My application (am-utils) has this legacy stuff in my
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> >> configure.in. I think I can safely take that out, now right?
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>
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> >> LTLIBOBJS=`echo "$LIBOBJS" | sed 's/\.o/.lo/g'` AC_SUBST(LTLIBOBJS)
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> >> LTALLOCA=`echo "$ALLOCA" | sed 's/\.o/.lo/g'` AC_SUBST(LTALLOCA)
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>
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> Alexandre> Not really. It looks like automake provides LTLIBOBJS,
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> Alexandre> but not LTALLOCA :-(
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>
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> Are you sure? I can't find the string LTLIBOBJS anywhere in the
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> sources.
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It seems you are right. Nor can I find reference anywhere except in the
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documentation of both libtool and automake. However, I stopped using
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these variables a few months ago (just forgot to include them really),
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and have suffered no ill effects.
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> Alexandre> Unless it does but it's not documented.
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>
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> Another related issue is that Automake does not include the little
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> needed magic that enables ansi2knr on LIBOBJS files. In addition to
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> all this, people who want ansi2knr to be run should also include
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> something like:
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>
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> # This is necessary so that .o files in LIBOBJS are also built via
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> # the ANSI2KNR-filtering rules.
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> LIBOBJS=`echo $LIBOBJS|sed 's/\.o /\$U.o /g;s/\.o$/\$U.o/'`
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>
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> (Stolen from Jim Meyering's fileutils's configure.in).
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Yes, that makes sense. Or rather, automake should do this for us if it
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sees we are using ansi2knr.
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> Also, it seems that now we should not append just
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> replacement-function.o, but replacement-function.${ac_objext}[1].
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>
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> [1] What also mean that the above sed snippet should be adapted too.
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Agreed.
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> What is the real status of this? Since Automake reads these LIBOBJS
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> extensions, if one solution is to be chosen, couldn't it issue
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> warnings for non complying additions?
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In my experience, Tom is very good about applying patches he receives.
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=)O| Hopefully, I am too. =)O|
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This probably needs to be fixed in all of auto{make,conf} and libtool
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simultaneously. I don't have time to look at it right now, but I can
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certainly add it to the libtool TODO if you are also busy.
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Cheers,
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Gary.
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From - Thu Jan 21 11:56:34 1999
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Sender: demaille@inf.enst.fr
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To: "Gary V. Vaughan" <gvaughan@oranda.demon.co.uk>
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Cc: Alexandre Oliva <oliva@dcc.unicamp.br>, Erez Zadok <ezk@cs.columbia.edu>,
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bug-libtool@gnu.org, automake@gnu.org, autoconf@gnu.org
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Subject: Re: lazy question
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References: <199901202104.QAA04372@shekel.mcl.cs.columbia.edu> <or1zkpr5tq.fsf@araguaia.dcc.unicamp.br> <qylu2xkq5l6.fsf@quasimodo.enst.fr> <36A70897.32F60E81@oranda.demon.co.uk>
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From: Akim Demaille <demaille@inf.enst.fr>
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Date: 21 Jan 1999 12:40:25 +0100
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In-Reply-To: "Gary V. Vaughan"'s message of "Thu, 21 Jan 1999 10:59:35 +0000"
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Message-ID: <qylk8ygq2fq.fsf@quasimodo.enst.fr>
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>>>>> "Gary" == Gary V Vaughan <gvaughan@oranda.demon.co.uk> writes:
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>> What is the real status of this? Since Automake reads these
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>> LIBOBJS extensions, if one solution is to be chosen, couldn't it
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>> issue warnings for non complying additions?
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Gary> In my experience, Tom is very good about applying patches he
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Gary> receives. =)O| Hopefully, I am too. =)O|
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:)
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Gary> This probably needs to be fixed in all of auto{make,conf} and
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Gary> libtool simultaneously. I don't have time to look at it right
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Gary> now, but I can certainly add it to the libtool TODO if you are
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Gary> also busy.
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I might have a look, but it is sure safer to write it down somewhere :)
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Also, since this is getting more and more tricky, and since I don't
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find it's real fun to write down
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LIBOBJS="$LIBOBJS blah.${ac_objext}"
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we could introduce in Autoconf a macro taking care of this, no?
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Something like
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AC_LIBOBJS(blah)
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Akim
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--
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P-mail: Akim Demaille, 107 rue Bobillot, F-75013 Paris, France
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E-mail: demaille@inf.enst.fr
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V-mail: +33 1 45 81 78 81
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Subject: Re: lazy question
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Date: Mon, 25 Jan 1999 11:38:41 +0000
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From: "Gary V. Vaughan" <gvaughan@oranda.demon.co.uk>
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Organization: Aethos Communication Systems Ltd.
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To: tromey@cygnus.com
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CC: Akim Demaille <demaille@inf.enst.fr>,
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Erez Zadok <ezk@cs.columbia.edu>, bug-libtool@gnu.org,
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automake@gnu.org, autoconf@gnu.org
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Tom Tromey wrote:
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>
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> >> AC_LIBOBJS(blah)
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>
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> Gary> Agreed. Also added to the archive.
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>
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> I'm suprised this isn't already there, since this subject has come up
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> many times before. I'm sure I mentioned it to Gord more than once.
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>
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> Basically, I think the right solution is to add some new
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> functionality to autoconf that would let a user defer a piece of code
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> to be run just before AC_OUTPUT. Then the libtool macro would
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> arrange to defer computation (and AC_SUBSTitution) of LTLIBOBJS and
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> LTALLOCA until that time.
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That sounds like a good, general, solution to me. I'm adding this mail
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to the libtool mail archive too =)O|
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> This probably isn't even that hard to do; I just haven't done it. I
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> wonder if it is on Ben's to-do list? Or perhaps one of the libtool
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> hackers could submit the patch?
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We are teetering on the edge of a 1.3 release, which must be compatible
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with autoconf-2.13 and automake-1.4. After that, I will try to submit a
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patch to Ben (stop me if you have this in your pending queue!).
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> In any case I don't think it is an automake problem per se.
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Agreed.
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Cheers,
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Gary.
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