<<< DUU-BUG-metadata_duplicate_useflag_description >>>
  dev-cpp/glog|unwind|arfrever.fta@gmail.com:floppym@gentoo.org
<<< open bugs >>>
  https://bugs.gentoo.org/618190 dev-cpp/glog:_please_rename_unwind_USE_flag_to_libunwind
  https://bugs.gentoo.org/630238 dev-cpp/glog-0.3.4-r1_:_make[1]:_***_[Makefile:&lt;snip&gt;:_demangle_unittest_sh]_Error_1
  https://bugs.gentoo.org/634174 dev-cpp/glog-0.3.4-r1:_make_check_failed