opam init fails to find zstd when compiling ocaml-base-compiler

[sporkl]

I was recently trying for a fresh install of ocaml, and when I ran opam init -y it looks like it failed to compile ocaml-base-compiler. When I installed zstd with brew install zstd, it worked afterwards.

I tried running it in a clean shell environment, and the same issue occurred as well.

Here's what the output looked like:

(base) dv@MacBook-Pro-403 ~ % opam init -y
No configuration file found, using built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.


<><> Fetching repository information ><><><><><><><><><><><><><><><><><><><>  🐫 
[default] Initialised

<><> Required setup - please read <><><><><><><><><><><><><><><><><><><><><>  🐫 

  In normal operation, opam only alters files within ~/.opam.

  However, to best integrate with your system, some environment variables
  should be set. If you allow it to, this initialisation step will update
  your zsh configuration by adding the following line to ~/.zshrc:

    [[ ! -r /Users/dv/.opam/opam-init/init.zsh ]] || source /Users/dv/.opam/opam-init/init.zsh  > /dev/null 2> /dev/null

  Otherwise, every time you want to access your opam installation, you will
  need to run:

    eval $(opam env)

  You can always re-run this setup with 'opam init' later.

[WARNING] Shell not updated in non-interactive mode: use --shell-setup

<><> Creating initial switch 'default' (invariant ["ocaml" {>= "4.05.0"}] - initially with ocaml-base-compiler) 

<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><>  🐫 
Switch invariant: ["ocaml" {>= "4.05.0"}]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><>  🐫 
∗ installed base-bigarray.base
∗ installed base-threads.base
∗ installed base-unix.base
∗ installed ocaml-options-vanilla.1
⬇ retrieved ocaml-base-compiler.5.1.1  (https://opam.ocaml.org/cache)
[ERROR] The compilation of ocaml-base-compiler.5.1.1 failed at "make -j15".

#=== ERROR while compiling ocaml-base-compiler.5.1.1 ==========================#
# context     2.1.5 | macos/x86_64 |  | https://opam.ocaml.org#a4b48f40
# path        ~/.opam/default/.opam-switch/build/ocaml-base-compiler.5.1.1
# command     ~/.opam/opam-init/hooks/sandbox.sh build make -j15
# exit-code   2
# env-file    /var/folders/sw/kx0xn99n7rv5cbyjwdn59z900000gn/T/opam-root-10007/ocaml-base-compiler-10007-cfa107.env
# output-file /var/folders/sw/kx0xn99n7rv5cbyjwdn59z900000gn/T/opam-root-10007/ocaml-base-compiler-10007-cfa107.out
### output ###
# /Applications/Xcode.app/Contents/Developer/usr/bin/make runtime-all
# [...]
#   MKDLL runtime/libcamlrun_shared.so
# /Applications/Xcode.app/Contents/Developer/usr/bin/make -C stdlib \
#         OCAMLRUN='$(ROOTDIR)/runtime/ocamlrun' \
#         CAMLC='$(BOOT_OCAMLC) -use-prims ../runtime/primitives' all
#   OCAMLC camlinternalFormatBasics.cmi
# dyld[15410]: Library not loaded: '@rpath/libzstd.1.dylib'
#   Referenced from: '/Users/dv/.opam/default/.opam-switch/build/ocaml-base-compiler.5.1.1/runtime/ocamlrun'
#   Reason: tried: '/usr/local/lib/libzstd.1.dylib' (no such file), '/usr/lib/libzstd.1.dylib' (no such file)
# make[2]: *** [camlinternalFormatBasics.cmi] Abort trap: 6
# make[1]: *** [coldstart] Error 2
# make: *** [world.opt] Error 2



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><>  🐫 
┌─ The following actions failed
│ λ build ocaml-base-compiler 5.1.1
└─ 
┌─ The following changes have been performed (the rest was aborted)
│ ∗ install base-bigarray         base
│ ∗ install base-threads          base
│ ∗ install base-unix             base
│ ∗ install ocaml-options-vanilla 1
└─ 

<><> ocaml-base-compiler.5.1.1 troubleshooting ><><><><><><><><><><><><><><>  🐫 
=> A failure in the middle of the build may be caused by build parallelism
      (enabled by default).
      Please file a bug report at https://github.com/ocaml/opam-repository/issues
=> You can try installing again including --jobs=1
      to force a sequential build instead.
Switch initialisation failed: clean up? ('n' will leave the switch partially installed) [Y/n] y
[NOTE] Opam has been initialised, but the initial switch creation failed.
       Use 'opam switch create <compiler>' to get started.

I submitted an issue to ocaml/ocaml as well here: ocaml/ocaml#12835

I am on an intel mac running macOS 12.5.1. If I should provide any additional info, please let me know.

Thanks!