Needs newer guile
I updated the ebuilds in the overlay to provide a 3.16.2 version.
Now we just need newer guile in tree.
*** Bug 550372 has been marked as a duplicate of this bug. ***
Guile-2 is now in tree.
aisleriot-3.20.2 has been released a few months ago
Updated in overlay.
3.22.7 is in the overlay. games-board/aisleriot hasn't been in the main ebuild tree since we switched to git, if ever.