On 03 Aug 2020, Immortal said the following...
Did you unzip with the -a option?
Yes I did.
I did grab a copy of cryptlib345.zip and was able to compile without issues
on my slackware box. I didn't recognize the error you posted so I'm not sure what the problem is.
Ttyl :-),
Al
--- Mystic BBS v1.12 A46 2020/06/11 (Linux/64)
* Origin: Equinox BBS - Penticton, BC Canada (21:4/106.1)