seahorse-1.0.1 depends on =app-crypt/gnupg-1.4* and >=app-crypt/gpgme-1.0.0 gpgme-1.1.4 depends on >=app-crypt/gnupg-1.9.20-r1 This leads to a dependency loop with gpg-1.4.7 and gnupg-2.0.3-r1 both needed. Note. seahorse integration with nautilus is a major feature of gnome-2.18
Dupe of bug 164523
*** This bug has been marked as a duplicate of bug 164523 ***