[libcxx-commits] [PATCH] D130541: [cmake] Dedup linker flag check polyfill

[John Ericson via Phabricator via libcxx-commits]

Ericson2314 created this revision.
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Finishing what https://reviews.llvm.org/D117537 started. This is also
what @phosek wanted.

We had two issues before, which are now fixed.

1. `HandleOutOfTreeLLVM` didn't work with compiler-rt

  Removed in D125561 <https://reviews.llvm.org/D125561>

2. CMake's `CMP0056` couldn't be relied upon

  Locally forced on in D118546 <https://reviews.llvm.org/D118546>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130541

Files:
  cmake/Modules/LLVMCheckCompilerLinkerFlag.cmake
  compiler-rt/cmake/config-ix.cmake
  libcxx/cmake/config-ix.cmake
  libunwind/cmake/config-ix.cmake
  llvm/cmake/modules/LLVMCheckLinkerFlag.cmake
  runtimes/CMakeLists.txt

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