>>> "GH" == Gregory Heytings <gregory@heytings.org> writes:

>> 
>> Does anybody know how to achieve the traditional binding of C-space
>> to set-mark-command on MacOS (for emacsformacos)?
>> 

> I don't understand your question.  C-SPC should work out of the box I
> think, at least it does here.  The M-SPC (just-one-space) does not
> with default settings, because M-SPC is used for Spotlight search, but
> you can deactive this easily in the preferences if you want.


The point is (at least in 10.15), if you use more than one keyboard, as
I do (US, US-international, Spanish and Hebrew), then mac os binds C-SPC
to switch keyboard layout without telling me.

So I just deactivated this keybinding in reference and now everything is
as expected.

Regards

Uwe