As in summary. kgamma would need a fix to be able to compile with cmake-3.4 Reproducible: Always Steps to Reproduce: 1. emerge kde-apps/kgamma, assuming cmake-3.4 is installed 2. notice a build failure 3. downgrade to cmake <3.4 4. notice a successful build.
Created attachment 417844 [details] build.log
See also: https://bugs.gentoo.org/show_bug.cgi?id=566058
Thanks, fixed in git. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d44be9b34321798058970dd8c282644978a671b4