git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12551 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Makefile.in: use lex.c.blt if gperf is not available. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e