Tested under Emacs 28.1 and a recent tip of the Emacs git repo for Emacs
29 with asynchronous native compilation enabled:
M-x package-install RET hyperbole RET
fails to load the hyperbole-autoloads.el file before the
async native compiler and byte compiler produce these errors since
the autoloaded var:append function is not defined:
Warning (comp): ~/.emacs.d/elpa/hyperbole-8.0.0/hui-em-but.el: Error: Symbol's function definition is void var:append Disable showing Disable logging
Warning (comp): ~/.emacs.d/elpa/hyperbole-8.0.0/hui-mouse.el: Error: Symbol's function definition is void var:append Disable showing Disable logging
Warning (comp): ~/.emacs.d/elpa/hyperbole-8.0.0/hbut.el: Error: Symbol's function definition is void var:append Disable showing Disable logging
The package manager definitely generates hyperbole-autoloads.el at some
point though I do not know if it is before these errors are produced.
Thanks for any help with this.
-- Bob