No proper license for this package could be found in the source package (upstream) The ebuild is set to LICENSE=BSD.
There are three possible solutions (ordered by what would be my preference): 1. Contact the upstream author and ask what the package's license is. 2. Change to LICENSE="all-rights-reserved" and add RESTRICT="mirror bindist". 3. Remove the package. (Last upstream release was 15 years ago, no reverse dependencies, no Gentoo maintainer. It still builds and seems to work just fine, though.) For a start, I've sent an e-mail message to the author.
Created attachment 408226 [details] e-mail message from upstream License is MIT, see attached reply from upstream.
Fixed in xwarppointer-1-r2.ebuild.