This check was previously done with a hack in config.guess.
However, since a new config.guess is copied in to place when
forcing a full autoreconf this change was easily lost and
never a good idea. This commit also updates all of the
autoconf style support scripts in config.
* configure.ac : Use AC_CONFIG_AUX_DIR to put autoconf products
in ./auotconf.
* autogen.sh : Use --copy to avoid symlinks, remove error
redirection, run aclocal before libtoolize.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@180 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c