Cannot build graphics 5.0.1 on Linux

[schyzophrene-asynchrone]

I was trying to build ocaml-graphics for my system using the AUR package. What it does is downloading the source package, extract it, and run dune build -p graphics in it. It fails with the following error message:

    ocamlopt src/discover/discover.exe (exit 2)
(cd _build/default && /usr/bin/ocamlopt.opt -w -40 -g -o src/discover/discover.exe /usr/lib/ocaml/unix.cmxa -I /usr/lib/ocaml /usr/lib/ocaml/dune-configurator/configurator.cmxa src/discover/.discover.eobjs/native/discover.cmx)
File "_none_", line 1:
Error: Files /usr/lib/ocaml/dune-configurator/configurator.cmxa
       and /usr/lib/ocaml/stdlib.cmxa
       make inconsistent assumptions over implementation Stdlib__sys
Done: 81/107 (jobs: 1)

Compiling the 5.0.0 sources yields no error.

[dra27]

I think this is a packaging error - https://www.archlinux.org/packages/community/x86_64/dune/ was built before https://www.archlinux.org/packages/extra/x86_64/ocaml/

[dra27]

5.0.0 wouldn't have this problem since it doesn't use configurator (see #17)

[dra27]

This should have been fixed downstream - see AUR bug tracker ticket 67923