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