configure.in: libruby needs gmp
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
configure.in: libruby needs gmp
run worker processes in test-all on non-ELF platforms.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e