Created attachment 268901 [details] build.log Kstars-4.6.2 needs =dev-cpp/eigen-2.x to compile, not eigen-3.x/any other possible version of eigen (please see the enclosed build.log). Please fix the ebuild as follows - dev-cpp/eigen + dev-cpp/eigen:2 After (re)installing eigen-2.0.15 (I remember it being removed by 'emerge --depclean' some time ago) kstars compiled without errors.
Fixed, thanks!