I was trying to run the testsuite of libtool on a Solaris 10 system
(using gcc, g++ and gfortran as compilers), with the patch series
posted here applied:

  <http://lists.gnu.org/archive/html/libtool-patches/2011-11/msg00160.html>

However, attempting a VPATH build as follow:

  $ mkdir BUILD-gcc
  $ cd BUILD-gcc
  $ nohup sh -c 'export CONFIG_SITE=/dev/null && ../configure && make' &

failed.  Attached are the output from the above, and the `config.log' file.

Regards,
  Stefano