media-libs/lcms:0 is unmaintained, has seen no releases since 2009, and (according to upstream) is affected by unspecified serious security issues. Please * either upgrade your package to use media-libs/lcms:2, * or hard-disable an optional dependency on media-libs/lcms:0, * or mask your package for removal. Thank you!
Package will be masked for security reasons on 30/12/2014.
Support for mng images has been dropped, since that feature only requires lcms:0.
Why drop support for MNG images? splashutils does not directly depend on lcms. It depends on libmng, which in turn depends on lcms. The only reason the dependency was direct, AFAIK, is that libmng does not ensure availability of static libs of lcms it depends on when you request static libs of libmng. https://bugs.gentoo.org/show_bug.cgi?id=534784 And libmng already links to lcms:2, so there is no reason to drop mng support in splashutils.
Ok, I've created separate bug for that: #534786
Sorry, it didn't turn into a link. Here it is: https://bugs.gentoo.org/show_bug.cgi?id=534786