You may want to consider CoreRT. It's a .NET project whose goal is to eliminate the need for the CLR to be present on the target platform for running an application. Instead, it generates C++ code from a given C# code. That C++ code is compiled and linked on any target platform that supports C++.
A post on a Microsoft blog said: "If I really want to write some C# code and have it 'just work' on a new IoT device, I don’t have any options until the RyuJIT is capable of generating machine code that works with that processor and operating system." By cross-compiling C# to C++, .Net developers can then deliver their applications without needing to wait for .Net to be deployed on a given platform.
https://github.com/dotnet/corert
