Index: clang/CMakeLists.txt
===================================================================
--- clang/CMakeLists.txt
+++ clang/CMakeLists.txt
@@ -3,6 +3,12 @@
 # If we are not building as a part of LLVM, build Clang as an
 # standalone project, using LLVM as an external library:
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  if(POLICY CMP0114)
+    cmake_policy(SET CMP0114 OLD)
+  endif()
+  if(POLICY CMP0116)
+    cmake_policy(SET CMP0116 OLD)
+  endif()
   project(Clang)
   set(CLANG_BUILT_STANDALONE TRUE)
 endif()