[PATCH] D127310: [clang][driver] fix to correctly set devtoolset on RHEL

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

Do you have more authoritative answer when /root/usr is used and when it isn't?
I'd wish that we have comments for them.

This change also needs a unit test.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127310/new/

https://reviews.llvm.org/D127310