diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 58e7368..e154c0c 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -60,3 +60,7 @@
     DEPENDS clang clang-cc index-test
     COMMENT "Running Clang regression tests")
 endif()  
+
+# Produce LIT site configuration file.
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
+  ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg)
diff --git a/test/lit.site.cfg.in b/test/lit.site.cfg.in
new file mode 100644
index 0000000..dfb0657
--- /dev/null
+++ b/test/lit.site.cfg.in
@@ -0,0 +1,6 @@
+## Autogenerated by LLVM/Clang configuration. 
+# Do not edit!
+config.clang_obj_root = "@CLANG_BINARY_DIR@"
+
+# Let the main config do the real work.
+lit.load_config(config, "@LLVM_SOURCE_DIR@/lit.cfg")