[PATCH] D112126: [libunwind] Try to add -unwindlib=none while configuring and building libunwind

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo updated this revision to Diff 382110.
mstorsjo added a comment.

Factorized the tricky testing of `--unwindlib=none` to a separate cmake function, use this for the other similar-ish linker flags too.

I tried to mimic the naming and behaviour of the `check_c_compiler_flag` function, but should it be named more distinctly away from conflicting with possible future cmake core functions? And we could have the function append the tested flag directly to `CMAKE_REQUIRED_FLAGS` if succeeded too, instead of letting the caller do it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112126/new/

https://reviews.llvm.org/D112126

Files:
  libunwind/CMakeLists.txt
  libunwind/cmake/Modules/CheckCLinkerFlag.cmake
  libunwind/cmake/config-ix.cmake
  libunwind/src/CMakeLists.txt

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