On 13 Jan 2022 at 01:00p, Tommi Koivula pondered and said...
 
 TK> Hmm. How about "make -B" to make sure everything is compiled after
 TK> running "./configure" ?

Thanks to all who replied :)

Well this switch seems to have solved it.

Here's the trail of steps.

avon@orac:/hub/temp/binkd2/binkd$ cp mkfls/unix/* .

avon@orac:/hub/temp/binkd2/binkd$ ./configure --with-perl

checking for gawk... no
checking for mawk... mawk
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for a BSD-compatible install... /usr/bin/install -c
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for inttypes.h... (cached) yes
checking for stdint.h... (cached) yes
checking for unistd.h... (cached) yes
checking sys/vfs.h usability... yes
checking sys/vfs.h presence... yes
checking for sys/vfs.h... yes
checking sys/statfs.h usability... yes
checking sys/statfs.h presence... yes
checking for sys/statfs.h... yes
checking sys/statvfs.h usability... yes
checking sys/statvfs.h presence... yes
checking for sys/statvfs.h... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking for sys/mount.h... yes
checking arpa/inet.h usability... yes
checking arpa/inet.h presence... yes
checking for arpa/inet.h... yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking stdarg.h usability... yes
checking stdarg.h presence... yes
checking for stdarg.h... yes
checking io.h usability... no
checking io.h presence... no
checking for io.h... no
checking netinet/in.h usability... yes
checking netinet/in.h presence... yes
checking for netinet/in.h... yes
checking netdb.h usability... yes
checking netdb.h presence... yes
checking for netdb.h... yes
checking arpa/nameser.h usability... yes
checking arpa/nameser.h presence... yes
checking for arpa/nameser.h... yes
checking for resolv.h... yes
checking for snprintf... yes
checking for vsnprintf... yes
checking for vsyslog... yes
checking for waitpid... yes
checking for statvfs... yes
checking for statfs... yes
checking for uname... yes
checking for daemon... yes
checking for setsid... yes
checking for getopt... yes
checking for localtime_r... yes
checking for strtoumax... yes
checking for sigprocmask... yes
checking for gettimeofday... yes
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for _LARGEFILE_SOURCE value needed for large files... no
checking for socket... yes
checking for gethostbyname... yes
checking for setproctitle... no
checking for setproctitle in -lutil... no
checking for res_search... no
checking for res_search in libresolv... yes
checking for ns_initparse... yes
checking size of short... 2
checking size of int... 4
checking size of long... 8
checking for socklen_t... yes
checking for intmax_t... yes
checking for reliable signals... yes
checking for facilitynames... yes
checking for TIOCNOTTY... yes
checking for MSG_NOSIGNAL... yes
checking for perl... /usr/bin/perl
checking for libperl... /usr/lib/x86_64-linux-gnu/perl/5.28
checking for working libperl... yes
checking for perl multiplicity... yes
checking for libz... yes: /usr
checking for libbz2... yes: /usr
configure: creating ./config.status
config.status: creating Makefile

avon@orac:/hub/temp/binkd2/binkd$ make -B

Making depends...
Compiling md5b.c...
Compiling binkd.c...
Compiling readcfg.c...
Compiling tools.c...
Compiling ftnaddr.c...
Compiling ftnq.c...
Compiling client.c...
Compiling server.c...
Compiling protocol.c...
Compiling bsy.c...
Compiling inbound.c...
Compiling breaksig.c...
Compiling branch.c...
Compiling unix/rename.c...
Compiling unix/getfree.c...
Compiling ftndom.c...
Compiling ftnnode.c...
Compiling srif.c...
Compiling pmatch.c...
Compiling readflo.c...
Compiling prothlp.c...
Compiling iptools.c...
Compiling rfc2553.c...
Compiling run.c...
Compiling binlog.c...
Compiling exitproc.c...
Compiling getw.c...
Compiling xalloc.c...
Compiling crypt.c...
Compiling unix/setpttl.c...
Compiling unix/daemonize.c...
Compiling perlhooks.c...
Compiling compress.c...
Compiling srv_gai.c...
Linking binkd...


 Binkd is successfully compiled.                             

avon@orac:/hub/temp/binkd2/binkd$ ./binkd -vv

Binkd 1.1a-113 (Jan 14 2022 10:32:23/Linux)
Compilation flags: gcc, zlib, bzlib2, perl.
Facilities: fts5004 ipv6

I have deployed this at 3:770/1 and 21:1/100 now. Which if you poll that system I should confirm this :)

How strange I needed that switch?

Best, Paul

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