Should `flet` be replaced with `cl-flet` or `cl-letf` ?

Question

Some elisp functions that I have installed generate warnings:

`flet\' is an obsolete macro (as of 24.3); use either `cl-flet\' or `cl-letf\'.

Answer 1

The cl-letf function can be used for dynamic binding of functions, as Artur describes in this blog entry.