id3lib-3.8.3 had gcc-4.3 patch from bug 212455 added in April 2008, but the package did not get an -rX bump. The issue fixed may affect a bunch of packages depending on id3lib (see
http://gentoo-portage.com/media-libs/id3lib/RDep) which merged with old version of id3lib, like Easytag: http://bugs.gentoo.org/show_bug.cgi?id=233240.
*** Bug 233316 has been marked as a duplicate of this bug. ***