* ext/socket/rubysocket.h (HAVE_TYPE_STRUCT_SOCKADDR_DL):
  MSVC has struct sockadddr_dl, but its content is broken.
  http://ruby-mswin.cloudapp.net/vc10-x64/ruby-trunk/log/20130511T103938Z.log.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e