Receiving objects: 100% (134/134), 68.55 KiB | 0 bytes/s, done.
Resolving deltas: 100% (94/94), completed with 67 local objects.
make: Nothing to be done for 'clean'.
Ocamlbuild cannot find or build lib-pprzlink.ml. A file with such a name would usually be a source file. I suspect you have given a wrong target name to Ocamlbuild.
The same happened to me in Ubuntu 17.10, and the problem seems to be theirs. In particular, the related pkg was not correctly updated in Ubuntu. One can still fix it by installing ocambuild and other dependencies via opam. However, it is not so straightforward.
Hopefully, ocambuild is ok in the new LTS (beta is availble now I think).
Mmm forget my previous mail... this issue with ocambuild is not related with the one I experienced.
Anyway, for everybody, do not go for Ubuntu 17.10 is you want to work with Paparazzi without extra work :P.