我尝试了以下明显的命令：
sudo apt-get update
sudo apt-get install clang-3.8
但我收到消息：
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
我试过：
sudo apt-get update
sudo aptitude install clang-3.8
但得到消息：
Couldn't find package "clang-3.8". However, the following
packages contain "clang-3.8" in their name:
clang-3.8-doc
Couldn't find package "clang-3.8". However, the following
packages contain "clang-3.8" in their name:
clang-3.8-doc
No packages will be installed, upgraded, or removed.
0 packages upgraded, …