# File lib/childprocess.rb, line 90 def os @os ||= ( require "rbconfig" host_os = RbConfig::CONFIG['host_os'].downcase case host_os when /linux/ :linux when /darwin|mac os/ :macosx when /mswin|msys|mingw32/ :windows when /cygwin/ :cygwin when /solaris|sunos/ :solaris when /bsd/ :bsd else raise Error, "unknown os: #{host_os.inspect}" end ) end