[all-commits] [llvm/llvm-project] 98c6d3: [gn build] allow setting clang_base_path to a sour...

[Nico Weber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 98c6d3194ed90217ca6ce7e451d31ea246d2afff
      https://github.com/llvm/llvm-project/commit/98c6d3194ed90217ca6ce7e451d31ea246d2afff
  Author: Nico Weber <thakis at chromium.org>
  Date:   2021-03-05 (Fri, 05 Mar 2021)

  Changed paths:
    M llvm/utils/gn/build/toolchain/BUILD.gn

  Log Message:
  -----------
  [gn build] allow setting clang_base_path to a source-absolute path

With this, you can set `clang_base_path = "//out/gn1"` in `out/gn2/args.gn` and
the build in out/gn2 will use clang and lld from out/gn1.

Setting `clang_base_path` to an absolute path (with e.g.
`clang_base_path = getenv("HOME") + "/src/..."`) should behave as before.

Differential Revision: https://reviews.llvm.org/D97989