A bugfix release for Mono 2.4.2 is available. I have renamed the ebuild for 2.4.2 to 2.4.2.3 and it installed fine. Reproducible: Always
+*mono-2.4.2.3 (23 Aug 2009) + + 23 Aug 2009; Peter Alfredsen <loki_val@gentoo.org> -mono-2.4.ebuild, + -mono-2.4-r3.ebuild, +mono-2.4.2.3.ebuild: + Bump to 2.4.2.3, remove 2.4, 2.4-r3. Fixes bug 282012. Contains fix for + 277878. +