From f5f712dfcac6ee99381c5aca212950276f1743e8 Mon Sep 17 00:00:00 2001

From: Eric Fiselier <eric@efcs.ca>

Date: Fri, 10 Feb 2017 01:59:20 +0000

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

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`. I renamed `PTHREAD_LIB`

because It seemed likely to cause collisions with downstream users of

`LLVMConfig.cmake`.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@294690 91177308-0d34-0410-b5e6-96231b3b80d8

---

 include-fixer/plugin/CMakeLists.txt | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include-fixer/plugin/CMakeLists.txt b/include-fixer/plugin/CMakeLists.txt

index 2799fd4..df792ea 100644

--- a/include-fixer/plugin/CMakeLists.txt

+++ b/include-fixer/plugin/CMakeLists.txt

@@ -9,5 +9,5 @@ add_clang_library(clangIncludeFixerPlugin

   clangParse

   clangSema

   clangTooling

-  ${PTHREAD_LIB}

+  ${LLVM_PTHREAD_LIB}

   )

-- 

1.8.3.1