diff --git a/cmake/modules/LLVM-Config.cmake b/cmake/modules/LLVM-Config.cmake
index faba6dfd597..8ae1d23e4ee 100644
--- a/cmake/modules/LLVM-Config.cmake
+++ b/cmake/modules/LLVM-Config.cmake
@@ -51,12 +51,14 @@ function(explicit_llvm_config executable)
 endfunction(explicit_llvm_config)
 
 
-# This is a variant intended for the final user:
+# This is Deprecated
 function(llvm_map_components_to_libraries OUT_VAR)
+  message(AUTHOR_WARNING "Using llvm_map_components_to_libraries() is deprecated. Use llvm_map_components_to_libnames() instead")
   explicit_map_components_to_libraries(result ${ARGN})
   set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
 endfunction(llvm_map_components_to_libraries)
 
+# This is a variant intended for the final user:
 # Map LINK_COMPONENTS to actual libnames.
 function(llvm_map_components_to_libnames out_libs)
   set( link_components ${ARGN} )