By default Ocaml compilers place output files to the same directory
where the source resides:

ocamlc -c ../src/foo.ml -> generates ../src//foo.cmo, not ./foo.cmo as
one would expect from other compilers experience!

This can be overwritten by -o flag, but it's a) completely
undocumented for this purpose (manual says that it only affects the
linking phase) and b) affects ALL generated files at once.

Is this the design decision or just a faulty implementation? Should I
submit a bug report (together with a rather trivial fix) or this
behavior considered standard because it's too late to change anything?

- Dmitry Bely