gem install 时报错，no such file to load -- zlib

通过gem 安装mysql库时，报告

#gem install mysql
ERROR:  Loading command: install (LoadError)
    no such file to load -- zlib
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand

 

解决办法是：

1. 进入ruby源码文件夹

1. 安装ruby自身提供的zlib包

#cd ext/zlib
#ruby ./
#make
#make install

 

问题解决