- * After editing this file, run it (./src/generator.ml) to regenerate
- * all the output files.
+ * After editing this file, run it (./src/generator.ml) to regenerate all the
+ * output files. Note that if you are using a separate build directory you must
+ * run generator.ml from your top level build directory. You must also have run
+ * configure before generator.ml will run.