Support dune builds

When using dune, currently VsCoq won’t be able to find and load built .vo files (ditto ProofGeneral/CoqIDE). This is a known problem, but I’m filing this issue as documentation and to post the current workaround. I’m using an issue as documentation on purpose, since this is still pretty hacky.

As confirmed by @ejgallego, the workaround is to modify _CoqProject as follows:

--Q theories D
+-Q _build/default/theories D

Beware this breaks tasks that use coq_makefile, but I expect on *nix one can try processing _CoqProject with sed -e 's!_build/default/!! before passing it to coq_makefile.

[gares]

Thanks for posting. I guess the plan is to invoke coq*top via dune, since only dune knows the actual profile (which may not be default). In the meanwhile this is better than nothing 😉

[Blaisorblade]

Haven’t heard anything, and that MR seems about jump-to-definition only, which is unsupported altogether in vscoq.