The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2020.04.20.13.02.57 joerg src/sys/arch/x86/pci/amdsmn.c,v 1.8 2020.04.20.13.04.10 joerg src/external/bsd/nvi/usr.bin/nvi/Makefile,v 1.22 2020.04.20.13.04.10 joerg src/external/ibm-public/postfix/Makefile.inc,v 1.23 2020.04.20.13.04.10 joerg src/external/mit/xorg/bin/xkbcomp/Makefile,v 1.11 2020.04.20.13.30.34 martin src/sys/miscfs/procfs/procfs_linux.c,v 1.82 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2020.04.html#2020.04.20.13.30.34