[PATCH] D75199: Build fix: Turn off _GLIBCXX_DEBUG on gcc 9

[Jonathan Wakely via Phabricator via llvm-commits]

jwakely added a comment.

P.S. you could use `_GLIBCXX_ASSERTIONS` instead for affected versions of libstdc++. That is a subset of `_GLIBCXX_DEBUG` that has far fewer checks, but is still much better than not checking anything at all.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D75199/new/

https://reviews.llvm.org/D75199