diff --git a/CMakeLists.txt b/CMakeLists.txt
index 57bb970..6e5de7c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,33 @@
+cmake_minimum_required(VERSION 3.4.3)
+
+project(Clang-Tools-Extra)
+
+find_package(LLVM REQUIRED HINTS "${LLVM_CMAKE_PATH}")
+list(APPEND CMAKE_MODULE_PATH ${LLVM_DIR})
+
+# This is the place where we put Clang's 'AddClang.cmake'.
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
+
+set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
+set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
+set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
+set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
+set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
+
+set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
+
+include(AddClang)
+include(AddLLVM)
+include(TableGen)
+include(HandleLLVMOptions)
+include(VersionFromVCS)
+include(LLVMDistributionSupport)
+
+# Dummy targets to appease CMake.  These are normally found in the
+# Clang tree.
+add_custom_target(clang-resource-headers)
+add_custom_target(ClangSACheckers)
+
 include(CMakeDependentOption)
 
 add_subdirectory(clang-apply-replacements)