<<< DEC-IMP-ebuild_nonexist_dependency >>>
  6|mail-client/mailx|mailx-8.1.2.20160123.ebuild|mail-client/nail(2015-10-10)|maintainer-needed@gentoo.org
  7|mail-client/mailx|mailx-8.1.2.20180807.ebuild|mail-client/nail(2015-10-10)|maintainer-needed@gentoo.org
<<< ECU-BUG-ebuild_unused_eclasses >>>
  6|mail-client/mailx|mailx-8.1.2.20160123.ebuild|eutils|maintainer-needed@gentoo.org
<<< open bugs >>>
  https://bugs.gentoo.org/663516 =mail-client/mailx-8.1.2.20160123_failes_with_&quot;function_printhead:_error:_undefined_reference_to_'strnvis'&quot;
  https://bugs.gentoo.org/644886 mail-client/mailx-8.1.2.20160123:_breaks_ancient_uuencode_attachment_possibility
  https://bugs.gentoo.org/719512 mail-client/mailx-8.1.2.20180807_:_/.../tty.c:351:_undefined_reference_to_CCEQ