diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index af28bf0169108..7c12a9302ecda 100644
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -1,3 +1,4 @@
+FAIL
 
 # See docs/CMake.html for instructions about how to build LLVM with CMake.
 cmake_minimum_required(VERSION 3.20.0)