Add missing compiler option (#12602)

lukaszsamson · web-flow · commit 7a01165c51f7 · 2023-05-25T17:56:55.000+02:00
diff --git a/lib/elixir/lib/code.ex b/lib/elixir/lib/code.ex
@@ -221,7 +221,8 @@ defmodule Code do
 
   @list_compiler_options [:no_warn_undefined, :tracers, :parser_options]
 
-  @available_compiler_options @boolean_compiler_options ++ @list_compiler_options
+  @available_compiler_options @boolean_compiler_options ++
+                                @list_compiler_options ++ [:on_undefined_variable]
 
   @doc """
   Lists all required files.
