There's an update for gnome-games, fixes some crash issues, should be save to update. Reproducible: Always Steps to Reproduce: 1. 2. 3.
We don't do gnome-games. We'll pass this bug off to the gnome team.
Somewhere between 2.2 and 2.4 the gnome-games ebuild lost its dependency on guile. Without guile installed AisleRiot doesn't get built. According to the old 2.2.* ebuilds, it's a simple addition of an optional RDEPEND on dev-util/guile utilizing the guile USE flag.
gnome-games updated + guile dependency added in 2.4.1