Gentoo's Bugzilla –
Attachment 589702 Details for
Bug 694104sys-fs/ecryptfs-utils-108 should depend on >=sys-apps/keyutils-1.5.11-r1 - In file included from mount.ecryptfs.c:27: /usr/include/keyutils.h:129:43: error: unknown type name ‘uid_t’; did you mean ‘pid_t’?