[Somewhat OT] FreeBSD and Squirrelmail

From: Tim Daneliuk <tundra_at_tundraware.com>
Date: Thu, 03 Mar 2022 00:56:46 UTC
I have long used Squirrelmail as a web mail client on FreeBSD systems.
I recently attempted an upgrade of PHP7 (that failed) and then tried
installing PHP7 and then PHP8 using package management.  In both
these cases I see this error even though there absolutely is a
config file present on the machine:

ERROR: Config file ' . '"config/config.php" not found. You need to ' . 'configure SquirrelMail before you can use it.

Has anyone else run into this and/or have a fix?

TIA,
Tim