Driver: Add a -stdlib= argument which can be used to select the C++ standard
library to use.
 - This is currently useful for testing libc++; you can now use 'clang++
   -stdlib=libc++ t.cpp' to compile using it if installed.

 - In the future could also be used to select other standard library choices if
   alternatives become available (for example, to use an alternate C library).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113891 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed