[all-commits] [llvm/llvm-project] cb90d5: [CMake] Enable CMP0156 if available (#115046)

[Evan Wilde via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cb90d5b3ef463f0a471f9c6d39978c3764021dea
      https://github.com/llvm/llvm-project/commit/cb90d5b3ef463f0a471f9c6d39978c3764021dea
  Author: Evan Wilde <ewilde at apple.com>
  Date:   2024-11-06 (Wed, 06 Nov 2024)

  Changed paths:
    M cmake/Modules/CMakePolicy.cmake

  Log Message:
  -----------
  [CMake] Enable CMP0156 if available (#115046)

Some linkers do not require that libraries are repeated on the command
line. The Apple linker emits warnings when duplicate libraries are
specified, resulting in a wall of warnings.

CMP0156 deduplicates libraries on the command line when the linker
doesn't require them.

This patch enables CMP0156 to quiet the warnings when using a version of
CMake that recognizes it (CMake 3.29 and newer).



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