Rails，MySQL和Snow Leopard

Question

我使用在WWDC上获得的光盘升级到了雪豹。现在尝试运行我的一些Rails应用程序会抱怨sql    (in /Users/coneybeare/Projects/Ambiance/ambiance-server)!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.Importing all sounds in /Users/coneybeare/Projects/Ambiance/ambiance-sounds/Import 32/Compressed/ -- AdirondackPeepers.caf!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.rake aborted!dlopen(/opt/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle, 9): Library not loaded: /usr/local/mysql/lib/libmysqlclient.16.dylib  Referenced from: /opt/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle  Reason: image not found - /opt/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle(See full trace by running task with --trace)我本可以发誓我曾经修复过这个问题。问题是sudo gem install mysql不起作用并给出错误： Building native extensions.  This could take a while...ERROR:  Error installing mysql:    ERROR: Failed to build gem native extension./opt/local/bin/ruby extconf.rb install mysqlchecking for mysql_query() in -lmysqlclient... nochecking for main() in -lm... yeschecking for mysql_query() in -lmysqlclient... nochecking for main() in -lz... yeschecking for mysql_query() in -lmysqlclient... nochecking for main() in -lsocket... nochecking for mysql_query() in -lmysqlclient... nochecking for main() in -lnsl... nochecking for mysql_query() in -lmysqlclient... noGem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.Results logged to /opt/local/lib/ruby/gems/1.8/gems/mysql-2.7/gem_make.out有没有人得到mysql在雪豹上使用Rails呢？如果是这样，您的设置是什么，更好的是，我该怎么做才能重现它？

Answer 1

将mysql重建为64bit或安装64bit版本很重要，但是您还需要确保将mysql gem的本机部分也重建为64bit（如果您使用的是原始的Intel Core Duo macs，则该方法不适用）。

这是魔术命令：

env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

每当在Snow Leopard上使用本机组件进行gem安装时，都应如上所述设置ARCHFLAGS。

Answer 2

我为此花了很长时间，终于在Snow Leopard上使用它。我最终从源代码安装了Ruby，RubyGems和MySQL（有关安装Ruby和RubyGems的信息，请参见Hivelogic教程。MySQL教程位于底部。）我终于可以安装宝石了，但是我仍然在

dyld: lazy symbol binding failed: Symbol not found: _mysql_init

  Referenced from: /Library/Ruby/Site/1.8/universal-darwin10.0/mysql.bundle

  Expected in: flat namespace

dyld: Symbol not found: _mysql_init

  Referenced from: /Library/Ruby/Site/1.8/universal-darwin10.0/mysql.bundle

  Expected in: flat namespace

Trace/BPT trap

我终于删除了mysql.bundle（我不知道这是干什么的），这一切都奏效了。

sudo rm -f /Library/Ruby/Site/1.8/universal-darwin10.0/mysql.bundle

希望能对某人有所帮助。