I'm going to go through the pkgsrc-wip process with this for certain,
but since it's so small, in the mean time:

http://digitalfreaks.org/~lavalamp/nbsd/pkgsrc_textproc_gnome-spell.tar

*) This is a small Ximian library that mail/evolution uses to provide a
spell-check-as-you type widget for message composition similar to
textproc/gtkspell+www/gtkhtml as seen in news/pan and chat/gaim.
*) Evolution compiles fine w/o it, but if you add gnome-spell's
buildlink2.mk to evolution's makefile, gnu autoconf will pick it up.
*) Pkglink checks out.
*) I've yet to test it from a virgin pkgsrc
*) The only know issue thus far is that the 
$PREFIX/share/bonobo/servers/GNOME_Spell.server contains install prefix
path's that arn't  being properly sed(1)'d out:  A quick
%s/\/gnome\/head\/INSTALL\//\/usr\/pkg\//g fixes that.

Thanks,
-lava