The library links are put into /usr/lib6464 instead of /usr/lib64 (see attached emerge toward the end). This ended up breaking logrotate for me, and revdep-rebuild didn't fix it either. A manual symlink in /usr/lib64 will temporarily fix it. I'm not sure if this is a problem in the ebuild or in the distfile.
Created attachment 97017 [details] emerge log
*** This bug has been marked as a duplicate of 146988 *** *** This bug has been marked as a duplicate of 146988 ***
verified, it's really a duplicate.