If you get an error message like:

md4hl.c:47: conflicting types for `MD4File'
/usr/include/md4.h:49: previous declaration of `MD4File'

then you can fix it by nuking src/lib/libc/{obj/,}md?hl.c

(fix found by Jason Thorpe.  Thanks Jason!)
-- 
Mike Long <mikel@shore.net>                http://www.shore.net/~mikel
"Every normal man must be tempted at times to spit on his hands,
hoist the black flag, and begin slitting throats." -- H.L. Mencken