autoconf2.1: stable version of the automatic configure script builder (source code)

    Sun Oct 19 19:51:57 2008         443844 autoconf-2.13.tar.gz
    Sun Oct 19 19:51:57 2008            957 autoconf2.1-2.13-10.cygport
    Sun Oct 19 19:51:56 2008           3381 autoconf2.1-2.13-10.cygwin.patch
    Sun Oct 19 19:51:57 2008           1287 autoconf2.1-2.13-10.src.patch