Bug#1081706: camlimages FTBFS: Unbound module "Caml.Filename"

[Peter Green <plugwash@debian.org>]

Package: camlimages
Version: 1:5.0.5-1
Severity: serious

It seems that about a fortnight ago camlimages started to FTBFS
on the "reproducible builds" tests server. This seems contempory
with the upload of ocaml 5.2.0-3

https://tests.reproducible-builds.org/debian/rbuild/unstable/arm64/camlimages_5.0.5-1.rbuild.log.gz

https://tests.reproducible-builds.org/debian/history/camlimages.html

I am also seeing this build failure in raspbian, so I don't think
it's specific to the "reproducible builds" test setup.



> (cd _build/default && /usr/bin/ocamlopt.opt -w -40 -w -3-6 -g -I config/.ciconfig.eobjs/byte -I config/.ciconfig.eobjs/native -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/base -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/base/base_internalhash_types -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/base/shadow_stdlib -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/dune-configurator -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/findlib -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/ocaml_intrinsics_kernel -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/sexplib0 -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/stdio -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/stdune/csexp -I /usr/lib/aarch64-linux-gnu/ocaml/5.2.0/unix -intf-suffix .ml -no-alias-deps -open Dune__exe -o config/.ciconfig.eobjs/native/dune__exe__XConfigurator.cmx -c -impl config/xConfigurator.ml)
> File "config/xConfigurator.ml", line 11, characters 15-35:
> 11 |   let ( ^/ ) = Caml.Filename.concat
>                     ^^^^^^^^^^^^^^^^^^^^
> Error: Unbound module "Caml.Filename"
> dh_auto_build: error: dune build -j 12 -p camlimages returned exit code 1