bug#42901: Bug: Build fails when C-h is redefined

[Bob Weiner]

Ihor Radchenko <yantar92@gmail.com> writes:

> When I try to install Hyperbole, it fails with
> (error "Key sequence C-h A starts with non-prefix key C-h")
>
> This probably happens because I have C-h bound to
> backward-delete-char-untabify.

This should have been resolved the Hyperbole source tree where we have
used help-map, wherever that is bound, rather than "C-h" literally.  You
must rebind help-map to some other character and not just overwrite it.

Bob