我应该如何在我的 lubuntu 机器上正确安装 clang 的 c++ 库（使用 STL）？我想使用 clang 及其 c++ 库，因为它为即将到来的 c++14 标准提供了更好的支持。
尝试安装 libc++ 时：
sudo apt-get install libc++
我得到：
<!-- Fairly large amount of installed/up-to-date packages which I removed from the post-->
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to …