A new version was released recently. I took the liberty of replacing our patches that needs to be re-rolled every once and then into sed's (just as we did recently in kyotocabinet).
Created attachment 262209 [details] tokyocabinet-1.4.47.ebuild
+ 12 Feb 2011; Patrick Lauer <patrick@gentoo.org> -tokyocabinet-1.4.38.ebuild, + +tokyocabinet-1.4.47.ebuild: + Bump for #354583