* ext/socket/mkconstants.rb: define MSG_FASTOPEN.
  [ruby-core:57138] [Feature #8897]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42948 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-09-16

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e