无法安装 RedCloth

Question

如标题所示，我在安装 gem RedCloth 时遇到问题。我下载了 RubyGems v1.8.24，并使用 ubuntu 12.04，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

我试图查看这个最后给定的文件，但是当我查找它时，它会打开 chrome，并给我错误。:(

Answer 1

尝试从 Synaptic 安装 ruby​​1.9.1-dev 软件包，或使用 apt-get。

在命令提示符下： sudo apt-get install ruby​​1.9.1-dev

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