Good enough; thanks for the refresher. :)
Sent from my phone. No type good.
> On Aug 18, 2014, at 2:07 PM, "Brice Goglin" wrote:
>
> Le 18/08/2014 20:37, Jeff Squyres (jsquyres) a écrit :
>> I notice that --enable-plugins seems to be broken -- it always ends in:
>>
>> configure: WARNING: Plugin support requested, but could not find ltdl.h
>> configure: error: Cannot continue
>>
>> if you don't have libltdl installed. Is this intentional? I.e., have we
>> already relied on an external libltdl? Or have we previously embedded
>> libltdl (via LT_CONFIG_LTDL_DIR), and it has just bit-rotted?
>
> We had both external and embedded ltdl support in the beginning. We
> removed embedded in 1.7.1.
> Brice
>
>
> commit 7491172a4754b0e198f699cb31b7c65c59ac4df6
> Author: Brice Goglin
> Date: Wed May 15 08:15:49 2013 +
>
>Stop embedding libltdl, always use the system-wide libltdl
>
>The ltdl embedding caused problems to the hwloc embedding such as
> http://www.open-mpi.org/community/lists/hwloc-devel/2013/04/3659.php
>We fixed the embedding AM_CONDITIONAL problem in
> https://svn.open-mpi.org/trac/hwloc/changeset/5605
>but the generated tarballs now (sometimes) miss libltdl,
>causing configure to break.
>The patch in the first link above worked around that issue but...
>
>* Embedding ltdl is useful when you rely on recent ltdl features,
> while ltdl 1.5 (couldn't test earlier) looks OK for hwloc,
> and that version is very old and available everywhere.
>* the ltdl embedding ability isn't perfect in "recursive" mode
> (we had a hack for its config.h file in our configure
> see http://lists.gnu.org/archive/html/libtool/2012-08/msg00016.html)
>* we only need ltdl when --enable-plugins (not by default)
>
>That's enough reasons to consider not embedding ltdl anymore.
>We now require people to install libltdl-dev/libtool-ltdl-dev
>if they want plugins.
>
>This commit was SVN r5618.
>
>
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> Link to this post:
> http://www.open-mpi.org/community/lists/hwloc-devel/2014/08/4176.php