ubuntu7.10安装gem install mysql 出错

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问题：在ubuntu7.10中，使用

sudo gem install mysql

出现：

ERROR:  While executing gem ... (RuntimeError)
    ERROR: Failed to build gem native extension.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mys

解决方案
1.先运行

$ sudo apt-get install libmysqlclient15-dev

注意上面安装的库名为 libmysqlclient15-dev而非 libmysqlclient5-dev

2.再运行

sudo gem install mysql

参考文章：
http://blogs.law.harvard.edu/hoanga/2006/12/21/gem-install-mysql-failing-on-ubuntu-fix/