* tool/bisect.sh: also srcs needs Makefile, must in the build but
not the source directory.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk (bisect): run git-bisect with miniruby
* common.mk (bisect-ruby): run git-bisect with ruby
* tool/bisect.sh: script for git-bisect
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e