Simple script that makes life a little easier with gnu-autotools
on FreeBSD. Configgen takes all the guess work out of figuring out
paths, gnu-autotools versions, and more. Configgen can simply be
run in a source directory and it will figure out which versions of
autotools to use and the best way to auto-generate a configure script
or you can specify a command below.

 -gnu       Create generic gnu configure script
 -gnome     Create gnome specific configure script
 -bsd       Use FreeBSD auto-tools
              (versions: libtool15, automake15, autoconf253)
 -bsd14     Use FreeBSD auto-tools
              (versions: libtool15, automake14, autoconf213)
 -bsd19     Use FreeBSD auto-tools
              (versions: libtool15, automake19, autoconf259)
 -f         Find config (fall back on generic gnu)
 <config>   Specify a auto-gen configure script