"The C# system library was split off from the main source distribution during the early phases of development. The main reason for this was to enable other free software .NET efforts to reuse the code." http://www.southern-storm.com.au/portable_net.html This package depends on dev-lang/pnet, which i submitted earlier. It includes the C# library. I suggest dev-libs/pnetlib
Created attachment 7438 [details] pnetlib-0.5.0.ebuild
It's a duplicate of bug 14148
*** This bug has been marked as a duplicate of 14148 ***