On Tue, Jan 29, 2019 at 3:50 PM Glenn Morris <rgm@gnu.org> wrote:

CANNOT_DUMP used to mean "Emacs cannot be dumped on your system".
Now it means "Emacs should not support unexec".

I got confused by this too, when I was reviewing my recently submitted Emacs bug report.

Thanks for this post; now I know that "CANNOT_DUMP" means that I am using pdumper.