This is an auto-filled bug because this package fails to compile (CGAL/Periodic_3_Delaunay_triangulation_traits_3.h: No such file or directory).
Created attachment 472270 [details] graph-tool-2.19:20170510-135011.log build log
Created attachment 472272 [details] emerge --info emerge --info
amd64 stable
x86 stable. Closing.