GNU logs - #18917, boring messages

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Subject: bug#18917: --disable-static breaks unittests (runpath-in-lalib.at & need_lib_prefix.at)
Resent-From: Mike Frysinger <vapier@HIDDEN>
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Date: Fri, 31 Oct 2014 22:54:55 -0400
From: Mike Frysinger <vapier@HIDDEN>
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when you configure libtool with --disable-static, these two unittests fail:
	runpath-in-lalib.at
	need_lib_prefix

if you hack the libtool script to set build_old_libs=3Dyes by default, then=
 the=20
unittests pass.  it looks like libtool has flags to enable building of eith=
er=20
static or shared libs, but there's no way to make it build both (which is t=
he=20
default with --enable-{shared,static}).

along those lines, it'd be nice if --disable-static didn't do this to the l=
ocal=20
copy of libtool that gets installed.  i understand the relationship between=
 the=20
configure flags and the generated libtool script -- normally you use the lo=
cal=20
libtool build the local libs and then only install those libs.  this is eve=
n how=20
it's used with libltdl.  but the libtool package itself is a bit special in=
 that=20
it also installs the libtool script.

in Gentoo atm, i'm hacking this by setting build_old_libs=3Dyes in the gene=
rated=20
libtool script before testing/installing.  but ideally it'd be possible to=
=20
install `libtool` with settings based on what the system can do, not how th=
e=20
package is building libltdl.{a,so}.
-mike

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Mike Frysinger <vapier@HIDDEN>
Subject: bug#18917: Acknowledgement (--disable-static breaks unittests
 (runpath-in-lalib.at & need_lib_prefix.at))
Message-ID: <handler.18917.B.1414810525443.ack <at> debbugs.gnu.org>
References: <20141101025455.GG26840@HIDDEN>
X-Gnu-PR-Message: ack 18917
X-Gnu-PR-Package: libtool
Reply-To: 18917 <at> debbugs.gnu.org
Date: Sat, 01 Nov 2014 02:56:02 +0000

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--=20
18917: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D18917
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Message sent to bug-libtool@HIDDEN:

Subject: bug#18917: --disable-static breaks unittests (runpath-in-lalib.at & need_lib_prefix.at)
Resent-From: "Gary V. Vaughan" <gary@HIDDEN>
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From: "Gary V. Vaughan" <gary@HIDDEN>
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Date: Sun, 2 Nov 2014 18:28:41 +0000
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Hi Mike,

> On Nov 1, 2014, at 2:54 AM, Mike Frysinger <vapier@HIDDEN> wrote:
>=20
> when you configure libtool with --disable-static, these two unittests =
fail:
> 	runpath-in-lalib.at
> 	need_lib_prefix
>=20
> if you hack the libtool script to set build_old_libs=3Dyes by default, =
then the=20
> unittests pass.  it looks like libtool has flags to enable building of =
either=20
> static or shared libs, but there's no way to make it build both (which =
is the=20
> default with --enable-{shared,static}).
>=20
> along those lines, it'd be nice if --disable-static didn't do this to =
the local=20
> copy of libtool that gets installed.  i understand the relationship =
between the=20
> configure flags and the generated libtool script -- normally you use =
the local=20
> libtool build the local libs and then only install those libs.  this =
is even how=20
> it's used with libltdl.  but the libtool package itself is a bit =
special in that=20
> it also installs the libtool script.

Yeah.  We're conflating the flags for building libltdl with the flags =
for the
libtool used to build it.

But, I don't see a sensible straight-forward way of fixing it.  Really, =
we need
to have libltdl build it's own libtool based on the configure flags, and =
have
libtool proper generate a separate installable libtool.  But that's a =
whole can
of worms I don't want to open, and was part of the reason I made plans =
to split
the existing libtool into 2 separately distributed packages in the next =
major
release:  Then, it would be obvious that configuring the package that =
installs
bin/libtool with --disable-static really is installing a libtool that =
has static
library building turned off by default.

> in Gentoo atm, i'm hacking this by setting build_old_libs=3Dyes in the =
generated=20
> libtool script before testing/installing.  but ideally it'd be =
possible to=20
> install `libtool` with settings based on what the system can do, not =
how the=20
> package is building libltdl.{a,so}.

I think it would be safer for gentoo to package the two separately =
then... have a
libltdl package, which you build using --disable-static, and a separate =
libtool
package (containing libtoolize, libtool and the supporting share/libtool =
files)
configured with --enable-shared and --enable-static.

I'd be very happy to receive a patch to fix things more elegantly =
(perhaps by
adding additional flags to the top-level configure, and massaging and =
filtering
what gets passed down to a sub-configure in the libltdl subdirectory), =
but I'm
afraid I don't have the time to make it happen myself in the immediate =
future :(
Especially considering that the better long term fix is to split libltdl =
out into
its own project.

Cheers,
--=20
Gary V. Vaughan (gary AT gnu DOT org)

Message sent to bug-libtool@HIDDEN:

Subject: bug#18917: --disable-static breaks unittests (runpath-in-lalib.at & need_lib_prefix.at)
Resent-From: Mike Frysinger <vapier@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-libtool@HIDDEN
Resent-Date: Mon, 16 Feb 2015 12:46:02 +0000
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To: "Gary V. Vaughan" <gary@HIDDEN>
Cc: 18917 <at> debbugs.gnu.org
Date: Mon, 16 Feb 2015 07:45:43 -0500
From: Mike Frysinger <vapier@HIDDEN>
Message-ID: <20150216124543.GF4359@vapier>
Mail-Followup-To: "Gary V. Vaughan" <gary@HIDDEN>, 18917 <at> debbugs.gnu.org
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On 02 Nov 2014 18:28, Gary V. Vaughan wrote:
> > On Nov 1, 2014, at 2:54 AM, Mike Frysinger wrote:
> > in Gentoo atm, i'm hacking this by setting build_old_libs=3Dyes in the =
generated=20
> > libtool script before testing/installing.  but ideally it'd be possible=
 to=20
> > install `libtool` with settings based on what the system can do, not ho=
w the=20
> > package is building libltdl.{a,so}.
>=20
> I think it would be safer for gentoo to package the two separately then..=
=2E have a
> libltdl package, which you build using --disable-static, and a separate l=
ibtool
> package (containing libtoolize, libtool and the supporting share/libtool =
files)
> configured with --enable-shared and --enable-static.

i ended up going this route and things look happy.  thanks for the suggesti=
on!
-mike

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