WSJT-X v2.0.0に、アップデートしました。
pi@raspberrypi:~ $ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.6 (stretch) Release: 9.6 Codename: stretch pi@raspberrypi:~ $ uname -a Linux raspberrypi 4.14.34-v7+ #1110 SMP Mon Apr 16 15:18:51 BST 2018 armv7l GNU/Linux pi@raspberrypi:~ $ cat /proc/version Linux version 4.14.34-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1110 SMP Mon Apr 16 15:18:51 BST 2018