gem install json失败

2016-08-02

Linux

linux, ruby

# gem install json -v '1.8.3'  
Building native extensions.  This could take a while...  
ERROR:  Error installing json:  
    ERROR: Failed to build gem native extension.  

        /usr/bin/ruby1.9.1 extconf.rb  
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)  
    from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'  
    from extconf.rb:1:in `&lt;main&gt;'  

Gem files will remain installed in /var/lib/gems/1.9.1/gems/json-1.8.3 for inspection.  
Results logged to /var/lib/gems/1.9.1/gems/json-1.8.3/ext/json/ext/generator/gem_make.out

ubuntu:
sudo apt-get install ruby-dev

centos:

yum install ruby-devel