=== posix_mq 0.6.0 - Rubinius support / 2010-12-25 08:28 UTC

  Rubinius 1.2 as well as Ruby 1.9.  Ruby 1.8 works except it will
  block the entire interpreter for blocking operations.  Spurious
  errors during GC for POSIX_MQ#to_io users are now avoided.