3.8.0 regression: Error: Library "ppx_deriving_runtime" not found. #7875
Description
Expected Behavior
Compilation succeeds, exit code should be 0, and dist/caldav.hvt should exist.
Actual Behavior
Compilation failure:
#=== ERROR while compiling mirage-unikernel-caldav-hvt.0.0.2 ==================#
# context 2.1.5 | freebsd/x86_64 | | git+https://git.robur.coop/robur/unikernel-repo.git
# path /tmp/orb-build
# command /bin/sh -exc cd mirage/ && mirage build
# exit-code 1
# env-file /tmp/opam-hannes-12430/mirage-unikernel-caldav-hvt-12430-857f4b.env
# output-file /tmp/opam-hannes-12430/mirage-unikernel-caldav-hvt-12430-857f4b.out
### output ###
# + cd mirage/
# + mirage build
# File "duniverse/ppx_deriving/src/api/dune", line 7, characters 24-44:
# 7 | (ppx_runtime_libraries ppx_deriving_runtime)
# ^^^^^^^^^^^^^^^^^^^^
# Error: Library "ppx_deriving_runtime" not found.
# -> required by library "ppx_deriving.api" in
# _build/default/duniverse/ppx_deriving/src/api
# -> required by library "caldav" in _build/solo5/duniverse/caldav/src
# -> required by executable main in dune.build:7
# -> required by _build/solo5/main.exe
# -> required by alias all (context solo5)
# -> required by alias default (context solo5)
# Generating static_caldavzap.ml
# Generating static_caldavzap.mli
# Generating static_tls.ml
# Generating static_tls.mli
# Generating static_caldavzap.ml
# Generating static_caldavzap.mli
# Generating static_tls.ml
# Generating static_tls.mli
No artifacts are produced, exit code is non-zero.
Reproduction
I'm sorry it's likely this can be minimized, but I fail to understand how to best minimize the reproduction case.
Start with an empty switch (OCaml 4.14.1 here), and follow the steps:
$ opam install mirage ocaml-solo5
$ git clone https://github.com/roburio/caldav.git
$ cd caldav/mirage
$ mirage configure -t hvt
$ make lock pull build
Now the above error appears. Doing the very same with a dune 3.7.1 succeeds. I'm sure you've a good idea what changed internally that suddenly a library is no longer found (in both cases, a grep -r ppx_deriving_runtime duniverse/ returns the exact same results).
Specifications
- Version of
dune(output ofdune --version): 3.8.0 - Version of
ocaml(output ofocamlc --version) 4.14.1 - Operating system (distribution and version): FreeBSD 13.1/amd64
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