+ @strong{Please note:} If you define an lrecord in an external
+dynamically-loaded module, you must use @code{DECLARE_EXTERNAL_LRECORD},
+@code{DEFINE_EXTERNAL_LRECORD_IMPLEMENTATION}, and
+@code{DEFINE_EXTERNAL_LRECORD_SEQUENCE_IMPLEMENTATION} instead of the
+non-EXTERNAL forms. These macros will dynamically add new type numbers
+to the global enum that records them, whereas the non-EXTERNAL forms
+assume that the programmer has already inserted the correct type numbers
+into the enum's code at compile-time.
+