git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13944 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk: fix to use above driver. * benchmark/prepare_so_count_words.rb: added. * benchmark/bm_so_count_words.rb: fix benchmark process. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13535 b2dd03c8-39d4-4d8f-98ff-823fe69b080e