Ruby 1.8でminiunitをインストールするとactivesupport 2.2.2がロードできない

Ruby on Railsの最新版が出たのでとりあえずActiveSupportを使ってみようと思ったのだが、うーん、ロードできぬ。

$ rugem -ractive_support -e ''
/pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:445:in `load_missing_constant': uninitialized constant Test (NameError)
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:77:in `const_missing'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:89:in `const_missing'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/miniunit-1.2.1/lib/test/unit/error.rb:4
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/rubygems-update-1.3.1/lib/rubygems/custom_require.rb:31:in `gem_original_require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/rubygems-update-1.3.1/lib/rubygems/custom_require.rb:31:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/deprecation.rb:224
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/rubygems-update-1.3.1/lib/rubygems/custom_require.rb:31:in `gem_original_require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/rubygems-update-1.3.1/lib/rubygems/custom_require.rb:31:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
	from /pkgs/ruby18/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support.rb:37
zsh: exit 1     rugem -ractive_support -e ''

ログを見たらminiunitと出ているからか。どうせTest::Unitと互換性あるし1.8のは消しとこうか。

$ sudo gem uninstall miniunit

そしたら無事にロードできた。それにしてもこのバージョンだとロード時間がやばいほど長くなったのだが。いったい何が起きたのだ？

$ time rugem -ractive_support -e ''
rugem -ractive_support -e ''  1.90s user 4.38s system 94% cpu 6.648 total
$ time ruby19 -ractivesupport -e ''
ruby19 -ractivesupport -e ''  2.31s user 0.61s system 85% cpu 3.427 total
$ time ruby18 -rubygems -e 'require "activesupport"'
ruby18 -rubygems -e 'require "activesupport"'  0.91s user 0.48s system 91% cpu 1.520 total

あ、rugem経由だと激重になるだけか。それでも前は軽かったのに…不思議。

っつーかRuby 1.9に対応している。すげぇ〜