[PATCH] D135402: [LLD] Enable --no-undefined-version by default.

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

AFAICT openmp uses an incorrect version script where some exact patterns don't match symbols. This is error-prone but before this default switch it was unnoticed.

If you use `--no-undefined-version` with GNU ld, you likely get similar errors.

"drop-in replacement" does not mean ld.lld copies every behavior of GNU ld. We consider many factors and what default makes the most sense.
I've made comments why the new default makes more sense and I don't want to repeat.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D135402/new/

https://reviews.llvm.org/D135402