bug#48221: 28.0.50; defsubsts aren't native compiled?

[Andrea Corallo]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Lars Ingebrigtsen <larsi@gnus.org>
>> Date: Wed, 05 May 2021 11:36:02 +0200
>> Cc: 48221@debbugs.gnu.org
>> 
>> (A related question -- is (boundp 'comp-ctxt) really the best way to
>> test for whether we have a native-compiled Emacs?  That's just a defvar
>> in comp-cstr.el...)
>
> We could perhaps provide 'native-compilation in comp.c?  WDYT?

We can use since a while (featurep 'nativecomp), I probably missed this
substitution, I'm preparing a patch.

  Andrea