in `require': no such file to load -- readline

在 linux 运行rails c ,报错 in `require': no such file to load -- readline

 

在http://railsforum.com/viewtopic.php?id=14452 找到解决方法。

 

>yum install readline-devel

 

到ruby 的源文件目录:

 

>cd <ruby_src>/ext/readline
>ruby extconf.rb
>make && make install

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