Following ebuilds do not declare IUSE variable: app-text/utrac/utrac-0.3.0.ebuild net-misc/connect/connect-1.95.ebuild net-misc/connect/connect-1.96.ebuild sys-fs/inotify-tools/inotify-tools-3.11.ebuild sys-fs/inotify-tools/inotify-tools-3.12.ebuild sys-fs/inotify-tools/inotify-tools-3.13.ebuild sys-power/sispmctl/sispmctl-2.7.ebuild see bug 224271
Thanks! Fixed in CVS.