Re: Emacs 27.1 Windows Binaries -- testing wanted

[Óscar Fuentes]

Eli Zaretskii <eliz@gnu.org> writes:

> For images, verify that (image-type-available-p 'TYPE) returns non-nil
> for all the supported TYPEs.  For other optional features, similar
> functions generally exist that can be probed; let me know if you need
> more detailed advice.

A function that checks and shows the availability of every possible
optional feature would be handy.