libguile-ssh should be installed as an extension

[aconchillo]

This came up in a new Apple M1 where Homebrew is installed in /opt/homebrew instead of /usr/local as Apple intel's. libguile-ssh should actually be installed as an extension (as other extensions). This way GUILE_SYSTEM_EXTENSIONS_PATH can be used.

[aconchillo]

@artyom-poptsov ping

[artyom-poptsov]

Hello.

Thank you for the patch.

I rebased your changes on top of the master branch. make -j$(nproc) distcheck works fine, but when I try to guix build -f ./guix.scm, I get the following error.
guile-ssh-build.log

avp

[aconchillo]

Oh, so sorry I missed your message somehow. Yeah...I think the issue is that the extension is installed in

   /gnu/store/2s8q7mirdzr6sllb2cpidxhlhrvb77fm-guile-ssh-git/lib/guile/3.0/extensions

I'm not sure how guix solves this (not sure if it create symbolic links). But probably that path is not in GUILE_EXTENSIONS_PATH. I need to find some time to check this.

[Hellseher]

@aconchillo May you share brew's formula of the guile-ssh package? This issue
can be solved on the package side instead of library.

Guix uses isolated build with symlink to all dependencies as read only location
in /gnu/store the same mechanics are in use in NixOS.

• NixOS package :: https://github.com/NixOS/nixpkgs/blob/a7cc81913bb3cd1ef05ed0ece048b773e1839e51/pkgs/development/guile-modules/guile-ssh/default.nix

• Guix package :: https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/ssh.scm#n330

[aconchillo]

@aconchillo May you share brew's formula of the guile-ssh package? This issue can be solved on the package side instead of library.

Sorry! Completely missed this. Yes, that's what I ended up doing. This is it:

https://github.com/aconchillo/homebrew-guile/blob/main/Formula/guile-ssh.rb

[artyom-poptsov]

Hello @aconchillo and @Hellseher !

I wonder if this PR is still up to date? I'm planning to make a new Guile-SSH release this week, so it would be great if we could freshen this PR up and maybe merge it to the master branch.

Also maybe @nicolas-graves can add check this as well.