bug#72929: [Norbert Koch] Error building emacs after 73277a4097b

[Eli Zaretskii]

> Cc: Norbert Koch <vit...@netic.de>
> From: Stefan Kangas <stefankan...@gmail.com>
> Date: Sun, 1 Sep 2024 07:45:35 -0700
> 
> Thanks for reporting this.
> 
> Forwarding the below to the bug tracker in case anyone sees a quick fix.

I think image.c needs to include <stdlib.h> to avoid this.