Warning while starting emacs 29.0.50

[Charles Millar]

As the subject says and I am not sure if this is anything that has to be 
attended to.

I recently updated to Emacs 29 and cannot recall if I saw these warnings 
with Emacs 28. In other words, I paid no attention until now.

../../../usr/local/share/rec-mode/rec-mode.el: Warning: Non-symbol 
arguments to cl-defgeneric: (_kind (head sex))

../../../usr/local/share/rec-mode/rec-mode.el: Warning: Non-symbol 
arguments to cl-defgeneric: (kind (head fast))

versions

GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.34, 
cairo version 1.16.0) of 2022-11-19

rec-mode 1.9.0

recutils 1.9