Macrofusion is an immensely useful program for any serious photographer. It runs very well on my Gentoo 64 and would be great if it was added to portage.
The biggest problem with installing it was to get pyexiv2. I downloaded the ebuild from bgo-overlay and added it manually, it installed without issues.
Oops, a bug page about this already exists.
*** This bug has been marked as a duplicate of bug 405093 ***