raggi@mbk:~/dev/ext/rails_ezra$ git grep RUBY_PLATFORM
actionpack/test/template/compiled_templates_test.rb:      windows = (RUBY_PLATFORM =~ /win32/)
activesupport/lib/active_support/buffered_logger.rb:      if !RUBY_PLATFORM.match(/java|mswin/) && !(@log == STDOUT) && @log.respond_to?(:write_nonblock)
activesupport/lib/active_support/core_ext/kernel/reporting.rb:    stream.reopen(RUBY_PLATFORM =~ /mswin/ ? 'NUL:' : '/dev/null')
railties/CHANGELOG:* Windows: include MinGW in RUBY_PLATFORM check.  #2982 [okkez000@gmail.com, Kaspar Schiess]
railties/CHANGELOG:* Windows: include MinGW in RUBY_PLATFORM check.  #2982 [okkez000@gmail.com, Kaspar Schiess]
railties/builtin/rails_info/rails/info.rb:    property 'Ruby version', "#{RUBY_VERSION} (#{RUBY_PLATFORM})"
railties/lib/commands/console.rb:irb = RUBY_PLATFORM =~ /(:?mswin|mingw)/ ? 'irb.bat' : 'irb'
railties/lib/commands/process/inspector.rb:if RUBY_PLATFORM =~ /(:?mswin|mingw)/ then abort("Inspector is only for Unix") end
railties/lib/commands/process/reaper.rb:if RUBY_PLATFORM =~ /(:?mswin|mingw)/ then abort("Reaper is only for Unix") end
railties/lib/commands/process/spawner.rb:    elsif RUBY_PLATFORM !~ /(:?mswin|mingw)/ && !silence_stderr { `spawn-fcgi -version` }.blank? && defined?(FCGI)
railties/lib/commands/runner.rb:  if RUBY_PLATFORM !~ /mswin/
railties/lib/commands/server.rb:    elsif RUBY_PLATFORM !~ /(:?mswin|mingw)/ && !silence_stderr { `lighttpd -version` }.blank? && defined?(FCGI)
railties/lib/commands/servers/lighttpd.rb:unless RUBY_PLATFORM !~ /mswin/ && !silence_stderr { `lighttpd -version` }.blank?
railties/lib/initializer.rb:        if RUBY_PLATFORM =~ /(:?mswin|mingw)/
railties/lib/rails/mongrel_server/commands.rb:          unless RUBY_PLATFORM =~ /djgpp|(cyg|ms|bcc)win|mingw/
railties/lib/rails_generator/generators/applications/app/app_generator.rb:      MYSQL_SOCKET_LOCATIONS.find { |f| File.exist?(f) } unless RUBY_PLATFORM =~ /(:?mswin|mingw)/
railties/lib/rails_generator/secret_key_generator.rb:        return false unless RUBY_PLATFORM =~ /(:?mswin|mingw)/
railties/lib/tasks/testing.rake:    STDERR.reopen(RUBY_PLATFORM =~ /(:?mswin|mingw)/ ? 'NUL:' : '/dev/null')