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From: Colin Walters <walters@verbum.org>
To: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: OE-core <openembedded-core@lists.openembedded.org>
Subject: Re: RFC: magic libtool .la removal
Date: Tue, 18 Jun 2013 12:39:43 -0400	[thread overview]
Message-ID: <1371573583.3466.35.camel@localhost> (raw)
In-Reply-To: <1371571538.3466.27.camel@localhost>

On Tue, 2013-06-18 at 12:05 -0400, Colin Walters wrote:

> Yeah, I dunno...maybe someone needs to fork libtool.

I should follow up to this; the thing is, libtool is at the intersection
of so many cross-cutting issues:

* RPM-style multilib vs Debian-style multiarch
* Supporting libraries that use pkg-config vs those that still
  sadly don't
* Windows vs Darwin vs GNU/Linux (in all its variations)
* Cross vs native builds
* "sysroot" support
* Plugins: libltdl  (and how that interacts with other cross-platform
  module loaders like e.g. GModule)
* Component-internal build system vs external interaction; specifically
  libtool makes it easy to run *uninstalled* binaries, which is
  quite useful, and to do that inside the tree does require
  extra metadata in .la files

So when I say .la files are worthless and broken, I really mean just for
GNU/Linux systems (generally native builds, but likely also cross), and
where things I care about know how to find .so files instead of .la,
and only for *external* build system interaction; having .la files
*inside* the build tree for a single component is fine, etc.

I can't say for sure myself that having libtool unilaterally stop
installing .la files wouldn't break anything; maybe there's some library
out there that doesn't use pkg-config and relies on consumers using
dependency_libs.  But I do think it's at best unnecessary for the use
case above; so maybe it should come down to an option, or something.







      reply	other threads:[~2013-06-18 16:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-18 14:31 RFC: magic libtool .la removal Burton, Ross
2013-06-18 14:42 ` Phil Blundell
2013-06-18 14:56   ` Burton, Ross
2013-06-18 15:00     ` Colin Walters
2013-06-18 15:05       ` Burton, Ross
2013-06-18 15:47         ` Richard Purdie
2013-06-18 15:52           ` Burton, Ross
2013-06-18 15:54           ` Phil Blundell
2013-06-18 15:59             ` Burton, Ross
2013-06-18 16:05           ` Colin Walters
2013-06-18 16:39             ` Colin Walters [this message]

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