Subject: bug#28732: flymake mouse-wheel portability fix

From: Eli Zaretskii <[email-masked]>
Date: Wed, 28 Feb 2018 22:32:48 +0200

> Date: Wed, 28 Feb 2018 20:02:22 +0100
> From: [email-masked] (Charles A. Roelli)
> CC: [email-masked], [email-masked]
> 
> "mwheel.elc" is in src/lisp.mk, so it confuses me that it would not be
> immediately available.

You will see in loadup.el that it is not preloaded in --without-x
builds.