# File lib/childprocess.rb, line 30
    def platform
      if RUBY_PLATFORM == "java"
        :jruby
      elsif defined?(RUBY_ENGINE) && RUBY_ENGINE == "ironruby"
        :ironruby
      elsif RUBY_PLATFORM =~ /mswin|msys|mingw32/
        :windows
      elsif RUBY_PLATFORM =~ /cygwin/
        :cygwin
      else
        os
      end
    end