From 53138afabd91e9f3b4ee22a33eaaebb89317411a Mon Sep 17 00:00:00 2001
From: Chao Shen <chao.shen@uisee.com>
Date: Wed, 28 Mar 2018 15:02:44 +0800
Subject: [PATCH] Extract LLVM to specific directory.

---
 cmake/DownloadAndExtractLLVM.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmake/DownloadAndExtractLLVM.cmake b/cmake/DownloadAndExtractLLVM.cmake
index 83f82b96..4a122e35 100644
--- a/cmake/DownloadAndExtractLLVM.cmake
+++ b/cmake/DownloadAndExtractLLVM.cmake
@@ -99,6 +99,8 @@ if(NOT EXISTS ${CLANG_ARCHIVE_EXTRACT_DIR})
     message(STATUS "Extracting downloaded LLVM with CMake built-in tar ...")
     # CMake has builtin support for tar via the -E flag
     execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${CLANG_ARCHIVE_FILE}
+                    # Extract to here to allow running cmake from everywhere
+                    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
                     OUTPUT_QUIET)
   endif()
 endif()