Index: clang-tools-extra/CMakeLists.txt
===================================================================
--- clang-tools-extra/CMakeLists.txt
+++ clang-tools-extra/CMakeLists.txt
@@ -31,3 +31,12 @@
 if (CLANG_ENABLE_CLANGD)
   add_subdirectory(clangd)
 endif()
+
+if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+  install(DIRECTORY clang-tidy
+    DESTINATION include
+    FILES_MATCHING
+    PATTERN "*.h"
+    PATTERN ".svn" EXCLUDE
+    )
+endif()