Severity: minor
Tags: patch

I see the following byte-compilation warnings in --without-x builds:

--8<---------------cut here---------------start------------->8---
In edmacro-fix-menu-commands:
edmacro.el:622:34: Warning: reference to free variable
    ‘mouse-wheel-down-event’
edmacro.el:622:57: Warning: reference to free variable ‘mouse-wheel-up-event’
edmacro.el:623:34: Warning: reference to free variable
    ‘mouse-wheel-right-event’
edmacro.el:624:34: Warning: reference to free variable
    ‘mouse-wheel-left-event’

In end of data:
mh-e/mh-compat.el:96:5: Warning: the function ‘image-search-load-path’ is not
    known to be defined.
mh-e/mh-compat.el:93:5: Warning: the function ‘image-load-path-for-library’ is
    not known to be defined.
In mh-logo-display:
mh-e/mh-utils.el:129:40: Warning: Unused lexical variable `image-load-path'
In mh-tool-bar-folder-buttons-init:
mh-e/mh-tool-bar.el:302:1: Warning: Unused lexical variable `image-load-path'
In mh-tool-bar-letter-buttons-init:
mh-e/mh-tool-bar.el:384:3: Warning: Unused lexical variable `image-load-path'
In end of data:
mh-e/mh-utils.el:128:24: Warning: the function ‘image-load-path-for-library’
    is not known to be defined.
In end of data:
mh-e/mh-tool-bar.el:302:1: Warning: the function ‘image-load-path-for-library’
    is not known to be defined.
--8<---------------cut here---------------end--------------->8---

The MH-E warnings are seen on master, whereas the edmacro ones are also
on emacs-28 (details of both configurations follow my signature).

I assume the warnings are not important enough to install anything on
emacs-28, so I attach a patch against master for both sets of warnings.
WDYT?

Thanks,

-- 
Basil