portのrubyまわりが、ごちゃごちゃ

深い理由はないんだけどrubyのまわりを再インストールしようとしてはまった。
ただ、最新のリビジョンを使いたかっただけなのだけど、
一度uninstallする方法しかみつからなかった。
そうすると、依存関係のあるrubygems, vim も先にuninstallしないといけない。
またはまると思うので、メモっておく
（vimのuninstallが終っている状態から始まっている）

% sudo port install ruby rb-rubygems vim +huge+perl+python+ruby
Password:
--->  Activating ruby 1.8.7-p72_0+thread_hooks
Error: Target org.macports.activate returned: Image error: Another version of this port (ruby @1.8.7-p22_0+thread_hooks) is already active.
Error: Status 1 encountered during processing.
% sudo port uninstall ruby
--->  The following versions of ruby are currently installed:
--->    ruby @1.8.7-p22_0+thread_hooks (active)
--->    ruby @1.8.7-p72_0+thread_hooks
Error: port uninstall failed: Registry error: Please specify the full version as recorded in the port registry.
% sudo port uninstall ruby @1.8.7-p22_0+thread_hooks
--->  Unable to uninstall ruby 1.8.7-p22_0+thread_hooks, the following ports depend on it:
--->    rb-rubygems
Error: port uninstall failed: Please uninstall the ports that depend on ruby first.

% sudo port uninstall rb-rubygems
--->  Deactivating rb-rubygems 1.2.0_0
--->  Uninstalling rb-rubygems 1.2.0_0

% sudo port uninstall ruby @1.8.7-p22_0+thread_hooks
--->  Deactivating ruby 1.8.7-p22_0+thread_hooks
--->  Uninstalling ruby 1.8.7-p22_0+thread_hooks

/Users/takemo% sudo port install ruby rb-rubygems vim +huge+perl+python+ruby
--->  Activating ruby 1.8.7-p72_0+thread_hooks
--->  Cleaning ruby
--->  Fetching rb-rubygems
--->  Verifying checksum(s) for rb-rubygems
--->  Extracting rb-rubygems
--->  Configuring rb-rubygems
--->  Building rb-rubygems with target all
--->  Staging rb-rubygems into destroot
--->  Installing rb-rubygems 1.2.0_0
--->  Activating rb-rubygems 1.2.0_0
--->  Cleaning rb-rubygems
--->  Fetching vim
--->  Attempting to fetch 7.2.001 from http://ftp.vim.org/pub/vim/patches/7.2
--->  Attempting to fetch 7.2.002 from http://ftp.vim.org/pub/vim/patches/7.2
      :
      :
--->  Attempting to fetch vim-7.2-extra.tar.gz from http://ftp.vim.org/pub/vim/extra/
--->  Attempting to fetch vim-7.2-lang.tar.gz from http://ftp.vim.org/pub/vim/extra/
--->  Verifying checksum(s) for vim
--->  Extracting vim
--->  Applying patches to vim
--->  Configuring vim
--->  Building vim with target all
--->  Staging vim into destroot
--->  Installing vim 7.2.021_0+huge+perl+python+ruby
--->  Activating vim 7.2.021_0+huge+perl+python+ruby
--->  Cleaning vim

% ruby -v
ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin8]