New port: devel/rubygem-rake-compiler-dock

Easy to use and reliable cross compiler environment for building Windows binary
gems. Use rake-compiler-dock to enter an interactive shell session or add a task
to your Rakefile to automate your cross build.

WWW: https://github.com/rake-compiler/rake-compiler-dock

Submitted by: Matthias Fechner <idefix@fechner.net>