The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2017.08.06.02.33.13 ryoon src/sys/dev/usb/usbdevs.h,v 1.731
2017.08.06.02.33.13 ryoon src/sys/dev/usb/usbdevs_data.h,v 1.732
Log files can be found at:
http://releng.NetBSD.org/b5reports/i386/commits-2017.08.html#2017.08.06.02.33.13
