This does not ring any bells for me, and I see nothing in the dune changelog that would obviously be relevant.
Could you please create an issue on https://github.com/ocaml/dune/issues? That will be seen by a more relevant set of people, so perhaps they will just know. I myself am not very familiar with the way dune looks for installed libraries, but from looking at the code, it seems to search for them in the [findlib_path] directory, so it looks for the findlib package in [/usr/lib/findlib]. Do you have an easy way to check that that directory exists on the filesystem and what files are in it? On Thu, 26 Nov 2020 at 11:11, Stéphane Glondu <glo...@debian.org> wrote: > Hello, > > After the update to dune 2.7.1 (from 2.7.0) in Debian, many packages > started to fail to build and I don't understand why. > > Let's have a look at ocp-indent, for example: > > https://bugs.debian.org/975821 > > It fails with errors like 'Library "findlib" not found' or 'Library > "cmdliner" not found'. However, findlib and cmdliner are installed (as > shown by e.g. "ocamlfind query findlib"). Also, the issue does not seem > to be present in opam. > > All this can be easily reproduced in an up-to-date Debian unstable chroot. > > Does this ring a bell? > > > Cheers, > > -- > Stéphane >
