How to compile pppd and rlogin.

This version supports pppd version 2.4.1.

The ./configure script by default will look in the parent directory for the
most recent (according to an alpha-numeric sort) file matching "../ppp*gz".

The ./configure script will create makefiles that take the name of the archive
without the ".tar.gz" or ".tgz" extension as the name of the directory that it
will be extracted to.

Then it will extract the archive as part of the build process and compile the
files it contains.  Then it will apply patches from the patches/ppp-version
directory.

