JRuby native no longer loads on windows

[enebo]

/c/opt/jruby master * 534% ./bin/jruby spec/mspec/bin/mspec spec/ruby/core/file/j oin_spec.rb
NotImplementedError: gettimeofday unsupported or native support failed to load; see http://wiki.jruby.org/Native-Libraries
               allocate at org/jruby/RubyClass.java:232
                    now at org/jruby/RubyTime.java:1069
  <class:Specification> at C:/opt/jruby/lib/ruby/stdlib/rubygems/specification.rb:104
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems/specification.rb:39
                require at org/jruby/RubyKernel.java:961
        <module:(root)> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:1
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:1333
                require at org/jruby/RubyKernel.java:961
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:116
                   load at org/jruby/RubyKernel.java:979
                 <main> at uri:classloader:/jruby/kernel/gem_prelude.rb:1
/c/opt/jruby master * 535% ./bin/jruby -S gem install t
NotImplementedError: gettimeofday unsupported or native support failed to load; see http://wiki.jruby.org/Native-Libraries
               allocate at org/jruby/RubyClass.java:232
                    now at org/jruby/RubyTime.java:1069
  <class:Specification> at C:/opt/jruby/lib/ruby/stdlib/rubygems/specification.rb:104
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems/specification.rb:39
                require at org/jruby/RubyKernel.java:961
        <module:(root)> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:1
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:1333
                require at org/jruby/RubyKernel.java:961
                 <main> at C:/opt/jruby/lib/ruby/stdlib/rubygems.rb:116
                   load at org/jruby/RubyKernel.java:979
                 <main> at uri:classloader:/jruby/kernel/gem_prelude.rb:1