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1. rubyÒѳÉΪ1.87 2. ±ØÐëÏȰ²×°°²×°¹âÅÌÀïµÄеÄxcode£¬ÔÚ"optional"Ŀ¼Àï 3. ¿ÉÄÜÐèÒªÖØÐ°²×°macport http://trac.macports.org/wiki/Migration 4. »òÕßÉý¼¶macport http://weblog.rubyonrails.org/2009/8/30/upgrading-to-snow-leopard $ sudo port selfupdate
$ sudo port sync
$ sudo port upgrade --force installed
5. ÖØÐ°²×°ruby ºÍgem http://weblog.rubyonrails.org/2009/8/30/upgrading-to-snow-leopard 5. ÖØÐ°²×°ferret http://purplellamas.net/blog/2009/09/14/snow-leopard-migration-issues/  Æäʵ¾ÍÊÇuninstall È»ºóÔÙ×° 6. ÖØÐ°²×°mysql ºÍ mysql gem http://weblog.rubyonrails.org/2009/8/30/upgrading-to-snow-leopard ×¢Òâ±ØÐë֨װmysql server£¬È»ºó°²×°mysql gem $ sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config                
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