[PATCH] D107682: [AVR][clang] Improve search for avr-libc installation path

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

Seems a new RUN line is needed. If having too many mock trees are inconvenient, consider `clang/unittests/Driver/ToolChainTest.cpp`


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D107682/new/

https://reviews.llvm.org/D107682