This patch add `md5' support for emacs. It was developed for Emacs 21 but might apply to Emacs 20.x too. XEmacs already have md5 support.
Some test cases are available too.
2000-10-07 Simon Josefsson <simon@josefsson.org>
* lisp.h: Export md5.
* coding.h: Export Qwrite_region and Qcoding_system_error.
* fns.c (Fmd5): New function.
(syms_of_fns): defsubr md5.
* Makefile.in (obj): Add md5.o
* md5.{c,h}: New files, from glibc, by Ulrich Drepper
<drepper@gnu.ai.mit.edu>.
The patch is available from here.