Hydra job fails since 2 weeks

[Andreas Weber]

The last successful build was on 2015-01-28
(http://hydra.nixos.org/job/gnu/octave-default/tarball#tabs-status), the
current tarball fails with

In file included from system/file-ops.cc:43:0:
../libgnu/tempname.h:55:32: error: expected ')' before 'try'
                          int (*try) (char *, void *));
                                ^
(http://hydra.nixos.org/build/19604760/log/tail-reload)

For me it seems like Hydra pulls a different gnulib version than hg
clone ... && ./bootstrap would into libgnu.

Here is the tempname.h hydra apparently is using:
http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/tempname.h;h=0df4381c6c5e8e5b5a5ae04d5d7a2fa8a8b57c7c;hb=HEAD

Shouldn't the hydra build use the same libgnu that we have in our repo?

-- Andy