# patch -p1 < fix.diff in guest /usr/src; rebuild:
#   cd /usr/src/sys/netgraph/netgraph && make
cc -O2 -pipe -D_KERNEL -Wall ... -Werror -DKLD_MODULE -c ng_base.c
cc -Wl,--build-id=sha1 -nostdlib -Wl,--hash-style=sysv -r -Wl,-d -o netgraph.ko ng_base.o ng_parse.o
V1_FIX_BUILD_OK
-rw-r--r-- 1 root wheel 51456 ... /usr/src/sys/netgraph/netgraph/netgraph.ko