QA: other
The ebuild is installing to one or more unexpected paths:

  /usr/nwcc

Please fix the ebuild to use correct FHS/Gentoo policy paths.
QA Notice: Package triggers severe warnings which indicate that it
           may exhibit random runtime failures.
sweeper.c:131:19: warning: implicit declaration of function ‘time’; did you mean ‘utimes’? [-Wimplicit-function-declaration]
Please do not file a Gentoo bug and instead report the above QA
issues directly to the upstream developers of this software.
Homepage: http://nwcc.sourceforge.net/index.html