With a freshly fetched stable 7.7 branch, I was trying to apply the fix in the errata listed here: https://ftp.openbsd.org/pub/OpenBSD/patches/7.7/common/001_nfs.patch.sig
However, the build fails because it complains of a file that seems to have been removed over a year ago(?): make: don't know how to make /usr/src/sys/dev/pci/drm/i915/intel_wopcm.c (prerequisite of: intel_wopcm.o) Stop in /usr/src/sys/arch/amd64/compile/GENERIC.MP
