xzgv doesn't create desktop entry (/usr/share/applications/*.desktop). Following patch adds this functionality.
Created attachment 105961 [details, diff] Support for desktop entry Desktop entry is created using make_desktop_entry().
# grep -C3 xzgv /usr/portage/profiles/package.mask # Jonathan Smith <smithj@gentoo.org> (07 Aug 2006) # pending removal # https://bugs.gentoo.org/show_bug.cgi?id=140498 media-gfx/xzgv WONTFIX.