martin rudalics <rudalics@gmx.at> schrieb am Di., 13. Juni 2017 um
09:44 Uhr:

> This change
>
>      Explicitly require C11 or C++11 in emacs-module.h
>
> apparently breaks building here on Windows XP with GCC 4.6.2 as
>

Hmm. I thought we would already require C11 for building Emacs, but
apparently we don't.
Then my reasoning for requiring C11 here was incorrect - stdbool.h is
already in C99. I'll make a better patch.