Doesn't build well on Ubuntu 18.04.2

[wytcld]

make install doesn't error out, but neither does it create a /service directory. Then it won't start of course without creating the /service directory. Creating that by hand, then starting it, it doesn't end up starting a simple service from a run file there. The original daemontools, also built from source, same system, does not have these problems -- but of course not the extra features either. There was no problem with encore on Ubuntu 16.