Michael Heerdegen <michael_heerdegen@web.de> writes:

> Nicolas Petton <nicolas@petton.fr> writes:
>
>>     (push `(pcase-defmacro . ,(lambda (&rest _) nil))
>>           byte-compile-macro-environment)
>
>
> Would this work?
>
>
> (defmacro seq--when-pcase-defmacro-defined (&rest body)
>   (when (fboundp 'pcase-defmacro)
>     `(progn ,@body)))
>
> (seq--when-pcase-defmacro-defined
>   { your seq pcase pattern definitions here })

I'll give it a try, thanks Michael!

Nico