[all-commits] [llvm/llvm-project] 5ee53d: [libclc] Fix cross in-tree builds (#97392)

[Harald van Dijk via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5ee53d417f41e8f452255ded1ff6a522afe17f08
      https://github.com/llvm/llvm-project/commit/5ee53d417f41e8f452255ded1ff6a522afe17f08
  Author: Harald van Dijk <harald.vandijk at codeplay.com>
  Date:   2024-07-02 (Tue, 02 Jul 2024)

  Changed paths:
    M libclc/CMakeLists.txt
    M libclc/cmake/modules/AddLibclc.cmake

  Log Message:
  -----------
  [libclc] Fix cross in-tree builds (#97392)

When performing cross in-tree builds, we need native versions of various
tools, we cannot assume the cross builds that are part of the current
build are executable. LLVM provides the setup_host_tool function to
handle this, either picking up versions of tools from
LLVM_NATIVE_TOOL_DIR, or implicitly building native versions as needed.
Use it for libclc too.

LLVM's setup_host_tool function assumes the project is LLVM, so this
also needs libclc's project() to be conditional on it being built
standalone. Luckily, the only change this needs is using
CMAKE_CURRENT_SOURCE_DIR instead of PROJECT_SOURCE_DIR.



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