The GNU C library now includes Michael Glad's Ultra Fast Crypt, which
provides the Unix `crypt' function, plus some other entry points.  Because
of the United States export restriction on DES implementations, we are
distributing this code separately from the rest of the C library.  There is
an extra distribution tar file just for crypt; it is called
`glibc-crypt-2.1.1.tar.gz' (or whatever the last version is).  You can just
unpack the crypt distribution along with the rest of the C library and
build; you can also build the library without getting crypt.  You 
can get the crypt distribution via anonymous FTP from
ftp://ftp.gwdg.de/pub/linux/glibc [134.76.11.100], or another archive site
outside the USA.  Archive maintainers are encouraged to copy this
distribution to their archives outside the USA.  Please get it from
ftp.gwdg.de; transferring this distribution from ftp.gnu.org (or any other
site in the USA) to a site outside the USA is in violation of US export
laws.