In the virt-top project, the author used some sort of “weak pointers”. If an external library like
csv is available at build time, it will be used also at runtime (
ocamlfind ocamlopt [-package csv opt_csv.cmo] -o main main.cmo).
I tried to implement the same logic with a
dune file. But the optional library is not considered by dune, even if
opt_csv.ml is added to the
How would this be done with dune? I adjusted my copy of the code to require the formerly optional packages unconditionally, which would be good enough for my use case.