qcow support build failure with ocaml 4.12
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Description
Trying to build cow support on a brand new MacBook with m1 chip:
ncopa@ncopa-mbp13 hyperkit % opam install uri qcow.0.11.0 conduit.2.1.0 lwt.5.3.0 qcow-tool mirage-block-unix.2.12.0 conf-libev logs fmt mirage-unix prometheus-app
<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><> 🐫
[qcow.0.11.0] no changes from git://github.com/mirage/ocaml-qcow
[qcow-tool.0.11.0] no changes from git://github.com/mirage/ocaml-qcow
The following dependencies couldn't be met:
- lwt → ocaml < 4.12
base of this switch (use `--unlock-base' to force)
No solution found, exiting
ocaml was installed with brew.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported opam install command for qcow.0.11.0, qcow-tool, and the listed dependencies with OCaml 4.12 on the M1 setup. Inspect the OCaml version constraint reported for lwt and determine the compatibility change or documentation needed for qcow support to build successfully.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- macos, ocaml
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100