Thanks for the quick response, JJ. Here's what I got.
~/sbitx $ ./sbitx
sbitx v3.02
gpio: Unable to open GPIO direction interface for pin 17: No such file or directory
wiringPiISR: unable to open /sys/class/gpio/gpio17/value: No such file or directory
pi@sbitx:~/sbitx $?
73, Bruce, W4BRU