Shark no longer builds

[mdales]

Shark no longer builds due to issues with mirage-crypto-rng-eio:

If I try to install this package I get:

File "vendor/obuilder/vendor/container-image/src/dune", line 19, characters 2-23:
19 |   mirage-crypto-rng-eio))
       ^^^^^^^^^^^^^^^^^^^^^
Error: Library "mirage-crypto-rng-eio" not found.
-> required by library "container-image" in
   _build/default/vendor/obuilder/vendor/container-image/src
-> required by executable main in src/bin/dune:2
-> required by _build/default/src/bin/main.exe
-> required by _build/install/default/bin/shark

And if you try too install mirage-crypto-rng-eio you get:

[ERROR] Package conflict!
  * Missing dependency:
    - mirage-crypto-rng-eio → mirage-crypto-rng (= 0.11.3 | = 1.2.0)
    not available because the package is pinned to version 0.11.2

No solution found, exiting

This is because we pin mirage-crypto-rng to 0.11.2. According to @patricoferris :

unfortunately they removed mirage-crypto-rng-eio in later versions

So we need this pinning, but trying to pin all of mirage-crypto gets me to this error:

opam install mirage-crypto-rng-eio                                                                                                                                                                                       13:10

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><>  🐫
[mirage-crypto-rng-eio.0.11.2] synchronised (no changes)

The following actions will be performed:
=== downgrade 1 package
  ↘ mirage-crypto         1.2.0 to 0.11.2 (pinned) [required by mirage-crypto-rng]
=== install 2 packages
  ∗ mirage-crypto-rng     0.11.2 (pinned)          [required by mirage-crypto-rng-eio]
  ∗ mirage-crypto-rng-eio 0.11.2 (pinned)

Proceed with ↘ 1 downgrade and ∗ 2 installations? [y/n] y

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><>  🐫
⬇ retrieved mirage-crypto-rng.0.11.2  (no changes)
⬇ retrieved mirage-crypto.0.11.2  (no changes)
⬇ retrieved mirage-crypto-rng-eio.0.11.2  (no changes)
[ERROR] The compilation of mirage-crypto.0.11.2 failed at "dune build -p mirage-crypto -j 15".

#=== ERROR while compiling mirage-crypto.0.11.2 ===============================#
# context     2.3.0 | macos/arm64 | ocaml-base-compiler.5.3.0 | pinned(git+https://github.com/dinosaure/mirage-crypto.git#parallel#c0e29117be2d081b50a5f1a789b16c77585324a3)
# path        ~/.opam/blah/.opam-switch/build/mirage-crypto.0.11.2
# command     ~/.opam/opam-init/hooks/sandbox.sh build dune build -p mirage-crypto -j 15
# exit-code   1
# env-file    ~/.opam/log/mirage-crypto-87153-dc5a89.env
# output-file ~/.opam/log/mirage-crypto-87153-dc5a89.out
### output ###
# File "src/dune", line 4, characters 20-32:
# 4 |  (libraries cstruct eqaf.cstruct)
#                         ^^^^^^^^^^^^
# Error: Library "eqaf.cstruct" not found.
# -> required by library "mirage-crypto" in _build/default/src
# -> required by _build/default/META.mirage-crypto
# -> required by _build/install/default/lib/mirage-crypto/META
# -> required by _build/default/mirage-crypto.install
# -> required by alias install



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><>  🐫
┌─ The following actions failed
│ λ build mirage-crypto 0.11.2
└─
╶─ No changes have been performed

But I have eqaf-cstruct installed, just it claims not to find it.

The tl;dr is that shark has bit rotted due to unpinned updates, and so doesn't build.

[patricoferris]

Hmm I just tried this from scratch and it seemed to build ok for me.

$ opam switch create shark 5.3.0
$ opam pin . -yn
$ opam install . --deps-only --with-test

[mdales]

Okay, seems to be a macOS specific issue. I ran those steps on both Daintree and my laptop, and it builds on Daintree, but not my laptop, it ends with:

[shark-ast.dev] synchronised (no changes)
[shark.dev] synchronised (no changes)
[ERROR] Package conflict!
  * Missing dependency:
    - deps-of-shark → mirage-crypto-rng → mirage-crypto = 0.11.2
    no matching version

No solution found, exiting

[patricoferris]

Ah ok, will investigate on a mac, thanks @mdales