Works fine... BTW, 7.1.2 does NOT work. Reproducible: Always Steps to Reproduce:
I'm using dev-util/tkcvs-7.1.4 on amd64 myself, so I can verify that it works. However since there's no amd64 keyword in this ebuild yet, adding ~amd64 would make a lot more sense than unmasking something that isn't there. :)
In CVS now, thanks!