[PATCH] D75890: [libunwind] Remove __FILE__ and __LINE__ from error reporting

[Nico Weber via Phabricator via llvm-commits]

thakis added a comment.

`__FILE__` only expands to an absolute path if you pass an absolute path to clang (ctrl-f "__FILE__" on http://blog.llvm.org/2019/11/deterministic-builds-with-clang-and-lld.html).

It feels like this is working around a deficiency in the compiler. Maybe fixing whatever's going wrong in the compiler might be better? (There's also -ffile-file-prefix map, but using that makes your _commandline_ depend on the name of the build dir, and (in clang) `__FILE_NAME__ `.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D75890/new/

https://reviews.llvm.org/D75890