Well, I fixed that error, and now get link errors:
```
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: randomdev.o: in function `random_alg_context_ra_init_alg':
/usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:96: undefined reference to `random_alg_context'
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: /usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:97: undefined reference to `random_alg_context'
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: randomdev.o: in function `randomdev_wait_until_seeded':
/usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:157: undefined reference to `random_alg_context'
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: randomdev.o: in function `randomdev_write':
/usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:376: undefined reference to `random_alg_context'
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: randomdev.o: in function `_read_random_uio':
/usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:241: undefined reference to `random_alg_context'
/usr/local/x86_64-unknown-freebsd13.0/bin/ld: randomdev.o:/usr/home/conrad/src/freebsd/sys/dev/random/randomdev.c:405: more undefined references to `random_alg_context' follow
```
I think this may have been broken since introduced in r286839?