bug#13931: 24.3.50; latest trunk fails to compile on GNU/linux

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

make bootstrap fail when running on head:

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commit bd3a26d7e89903b24017f8cf6886e70bac31ca6a (HEAD, refs/remotes/origin/trunk, refs/remotes/origin/master, refs/remotes/origin/HEAD, refs/heads/master)
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Mon Mar 11 19:40:08 2013 -0700
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make bootstrap succeed starting on:

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commit c26fdd39ed2f9e9601329f391bd139acc962ec27
Author: Stefan Monnier <monnier@iro.umontreal.ca>
Date:   Sun Mar 10 17:39:11 2013 -0400
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Then starting from here, I check out revision by revision and ran "make"
alone on each of them until I reach HEAD without errors.

Then from HEAD again I ran "make bootstrap" and it fail to compile with
same error.

Hope that help.

-- 
Thierry
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