On 13 Jan 2022 at 11:29a, Paul Hayton pondered and said...
 
 PH> checking for perl... /usr/bin/perl
 PH> checking for libperl... /usr/lib/x86_64-linux-gnu/perl/5.28
 PH> checking for working libperl... yes
 PH> checking for perl multiplicity... yes
 PH> checking for libz... yes: /usr
 PH> checking for libbz2... yes: /usr
 PH> configure: creating ./config.status
 PH> config.status: creating Makefile
 PH> avon@orac:/hub/temp/binkd2/binkd$ make

I also ran this

avon@orac:/hub/temp/binkd2/binkd$ whereis perl
perl: /usr/bin/perl /usr/bin/perl5.28-x86_64-linux-gnu /usr/lib/x86_64-linux-gnu/perl /etc/perl /usr/share/perl /usr/share/man/man1/perl.1.gz

--- Mystic BBS v1.12 A47 2021/11/06 (Linux/64)