Quoting Sean Davis (dive-nb@endersgame.net):

> Not to mention when I tried it, it didn't even work on NetBSD/i386 -current.
> Not from pkgsrc, not with a hand-installed ezm3, either. cvsup should be
> totally out of the question until somebody rewrites it in something other
> than m3. (no, I am not volunteering, CVS is more flexible and meets my needs
> just fine, not to mention works on every NetBSD arch I have.)
> 

Which is why I am using cvsync. It is exactly what you want in C.

-- 
j.