无法安装RedCloth

Question

正如标题中所述，我在安装gem RedCloth时遇到了问题。我下载了RubyGems v1.8.24，使用的是ubuntu12.04，这是我的控制台日志：

kuba@kuba-P5Q-SE:~$ sudo gem install RedCloth
[sudo] password for kuba: 
Building native extensions.  This could take a while...
ERROR:  Error installing RedCloth:
    ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9.1 extconf.rb
/usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load     such file -- mkmf (LoadError)
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from extconf.rb:1:in `<main>'


Gem files will remain installed in /usr/lib/ruby/gems/1.9.1/gems/RedCloth-4.2.9 for     inspection.
Results logged to /usr/lib/ruby/gems/1.9.1/gems/RedCloth-    4.2.9/ext/redcloth_scan/gem_make.out

我试图查看最后一个给定的文件，但当我查找它时，它打开了chrome，并给出错误。：(

Answer 1

尝试从Synaptic安装ruby1.9.1-dev包，或者使用apt-get。

在命令提示符下: sudo apt-get install ruby1.9.1-dev

mkmf (加载失败的模块)为only included in the development package for ruby on ubuntu。