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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Why is touch-screen.el preloaded?
Date: Sat, 25 Nov 2023 14:25:41 +0200
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Cc: emacs-devel@gnu.org
To: Po Lu <luangruo@yahoo.com>
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I thought this library is only relevant to touch-screen devices, but I
see that we are preloading it unconditionally.  Why?

The comment in loadup.el says:

  ;; touch-screen.el is tiny and is used liberally throughout the button
  ;; code etc, so it may as well be preloaded everywhere.

But touch-screen.el is not "tiny": it's more than 2K lines.

Can we please avoid preloading it, except when the build supports
touch-screen devices?

TIA