我正在尝试将 clang++ 设置为 Fedora 18 上的系统 C++ 编译器。我已经安装了 clang 并将其添加到其中，alternatives但它似乎不起作用。
[user@localhost ~]$ alternatives --display c++
c++ - status is auto.
link currently points to /usr/bin/clang++
/usr/bin/clang++ - priority 1
Current `best' version is /usr/bin/clang++.
[user@localhost ~]$ c++ --version
c++ (GCC) 4.7.2 20121109 (Red Hat 4.7.2-8)
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
c++尽管 …