* common.mk (reinstall): new target. * defs/gmake.mk (install, uninstall): can't run parallel. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e