Can't remove unp_syscall_create, where do you see an issue?
christos
[4:42pm] 342#/usr/obj/amd64-x86_64/tools/bin/nbmake-amd64
# link bpf/t_bpf
/usr/obj/amd64-x86_64/tools/bin/x86_64--netbsd-gcc --sysroot=/usr/obj/amd64-x86_64/release -Wl,--warn-shared-textrel -Wl,-z,relro -pie -shared-libgcc -o t_bpf t_bpf.o -Wl,-rpath-link,/usr/obj/amd64-x86_64/release/lib -L=/lib -lrumpnet_shmif -lrumpdev_bpf -lrumpdev -lrumpnet_netinet -lrumpnet_net -lrumpnet -lrumpvfs -lrump -lrumpvfs -lrumpvfs_nofifofs -lrumpuser -lrump -lpthread -latf-c
/net/quasar/obj-5/arch/amd64-x86_64/tools/bin/../lib/gcc/x86_64--netbsd/9.3.0/../../../../x86_64--netbsd/bin/ld: /usr/obj/amd64-x86_64/release/usr/lib/librumpnet.so: undefined reference to `rumpns_unp_sysctl_create'
collect2: error: ld returned 1 exit status
*** Failed target: t_bpf
*** Failed command: /usr/obj/amd64-x86_64/tools/bin/x86_64--netbsd-gcc --sysroot=/usr/obj/amd64-x86_64/release -Wl,--warn-shared-textrel -Wl,-z,relro -pie -shared-libgcc -o t_bpf t_bpf.o -Wl,-rpath-link,/usr/obj/amd64-x86_64/release/lib -L=/lib -lrumpnet_shmif -lrumpdev_bpf -lrumpdev -lrumpnet_netinet -lrumpnet_net -lrumpnet -lrumpvfs -lrump -lrumpvfs -lrumpvfs_nofifofs -lrumpuser -lrump -lpthread -latf-c
*** Error code 1