xdivk requires either motif, neXt, Xaw3d or Xaw toolkit to work. when neither of the first three is selected using the appropriate USE flag, it tries to build using libXaw, without a proper RDEPEND entry. Reproducible: Always Steps to Reproduce: 1.
Thanks for your report. I've fixed it in the tree. + 15 Sep 2012; <naota@gentoo.org> xdvik-22.84.16.ebuild: + Import xvdvik-22.85-r1's change into -22.84.16 to add RDEPEND properly. + #434638 +