Doing a full build of my source tree (make dist) on port-i386 with a
sup as of yesterday (last time sup was working), I get this...

===> domestic/lib/libcom_err
cc -O -I. -I/usr/src/domestic/lib/libcom_err/../../include -I/usr/src/domestic/lib/libcom_err/../../include/kerberosIV -I/usr/src/domestic/lib/libcom_err/../../include/ss -Werror  -c com_err.c
cc -O -I. -I/usr/src/domestic/lib/libcom_err/../../include -I/usr/src/domestic/lib/libcom_err/../../include/kerberosIV -I/usr/src/domestic/lib/libcom_err/../../include/ss -Werror  -c error_message.c
error_message.c: In function `error_message':
error_message.c:47: `sys_nerr' undeclared (first use this function)
error_message.c:47: (Each undeclared identifier is reported only once
error_message.c:47: for each function it appears in.)
error_message.c:48: `sys_errlist' undeclared (first use this function)
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.