我正在尝试在 Ubuntu 14.10 上通过 gem 安装 gollum。
当我尝试使用时gem install gollum，我看到以下错误：
/usr/bin/ruby2.1 extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
ERROR: Error installing gollum:
ERROR: Failed to build gem native extension.
Building has failed. See above output for more information on the failure.
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.1.0/gems/charlock_holmes-0.7.3 for inspection.
Results logged to /var/lib/gems/2.1.0/extensions/x86_64-linux/2.1.0/charlock_holmes-0.7.3/gem_make.out
我发现这libicu-dev是必需的。
所以我使用sudo apt-get install libicu-dev，但收到此错误：
$ sudo apt-get install libicu-dev
Reading package …