My target is a ruby application on Windows 7 that uses zeromq 4.1.2 through ffi-rzmq with either rubyinstaller-1.9.3-p551 or JRuby https://github.com/chuckremes/ffi-rzmq I have Visual Studio 2012 and want to build zeromq 4.1.2 with libsodium 1.0.3 I am struggling and need help.