The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2018.04.16.16.02.57 kamil src/external/gpl2/gmake/dist/glob/glob.c,v 1.3 Log files can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2018.04.html#2018.04.16.16.02.57