While devel/cvsgraph-1.4.0 can't be compiled on archs other than i386, 1.5.2 is fairly fine on both i386 and amd64 (and maybe other archs). I think it's a good idea to update to 1.5.2 and removing "ONLY_FOR_ARCHS" knob.
Responsible Changed From-To: freebsd-ports-bugs->trevor Over to maintainer
State Changed From-To: open->closed Committed, thanks!