[PATCH] D29555: [CMake] Fix pthread handling for out-of-tree builds

[Eric Fiselier via Phabricator via llvm-commits]

EricWF created this revision.
Herald added a subscriber: mgorny.

LLVM defines `PTHREAD_LIB` which is used by AddLLVM.cmake and various projects to correctly link the threading library when needed. Unfortunately `PTHREAD_LIB` is defined by LLVM's `config-ix.cmake` file which isn't installed and therefore can't be used when configuring out-of-tree builds. This causes such builds to fail since `pthread` isn't being correctly linked.

This patch attempts to fix that problem by renaming and exporting `LLVM_PTHREAD_LIB` as part of`LLVMConfig.cmake`.


Repository:
  rL LLVM

https://reviews.llvm.org/D29555

Files:
  cmake/config-ix.cmake
  cmake/modules/AddLLVM.cmake
  cmake/modules/LLVMConfig.cmake.in
  examples/ParallelJIT/CMakeLists.txt
  lib/CodeGen/CMakeLists.txt
  lib/ExecutionEngine/IntelJITEvents/CMakeLists.txt
  lib/Fuzzer/CMakeLists.txt
  lib/Support/CMakeLists.txt
  unittests/ExecutionEngine/Orc/CMakeLists.txt
  unittests/Support/CMakeLists.txt
  utils/unittest/CMakeLists.txt

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