[clang] [Driver] Fix detection of libc++ with empty sysroot. (PR #66947)

[Shoaib Meenai via cfe-commits]

smeenai wrote:

LGTM, thanks!

https://github.com/llvm/llvm-project/pull/66947
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits