luaPackages.lgi: fail to dlopen cairo

[booxter]

Nixpkgs version

Please select a version.

Describe the bug

This is happening on Darwin only. Linux is fine.

If I understand the derivation correctly, there's a patch applied to lgi that forces typelib loading of the cairo library through ffi first; this is done so that dlopen (triggered by g_module_open) is executed only when the library is already pre-loaded through gobject-introspection.

But evidently this is not happening on Darwin, and the library is loaded with dlopen (which fails).

Steps to reproduce

On Darwin:

$ nix-shell -p lua53Packages.lgi gobject-introspection --command 'lua -e "local lgi = require \"lgi\".cairo"'
lua: ...-lua5.3-lgi-0.9.2-1/share/lua/5.3/lgi/override/cairo.lua:59: attempt to index a nil value (field '_module')
stack traceback:
	...-lua5.3-lgi-0.9.2-1/share/lua/5.3/lgi/override/cairo.lua:59: in main chunk
	[C]: in function 'require'
	...466v3-lua5.3-lgi-0.9.2-1/share/lua/5.3/lgi/namespace.lua:183: in function 'lgi.namespace.require'
	(...tail calls...)
	(command line):1: in main chunk
	[C]: in ?
$

On Linux:

$ nix-shell -p lua53Packages.lgi gobject-introspection --command 'lua -e "local lgi = require \"lgi\".cairo"'
$

Workaround:

nix-shell -p lua53Packages.lgi gobject-introspection --command 'DYLD_LIBRARY_PATH=/nix/store/bq3m86rj6c27lgzp3s9akw4j7hl8ypkz-cairo-1.18.2/lib lua test.lua'

Expected behaviour

require "lgi".cairo works.

Screenshots

No response

Relevant log output

Additional context

No response

System metadata

 - system: `"aarch64-darwin"`
 - host os: `Darwin 24.5.0, macOS 15.5`
 - multi-user?: `yes`
 - sandbox: `no`
 - version: `nix-env (Nix) 2.28.3`
 - channels(root): `"nixpkgs"`
 - nixpkgs: `/nix/store/69gs81mpggzz4a8hima3faml7vmkmkzj-source`

Are you using nix-darwin?

Yes, I am using nix-darwin.

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[booxter]

There's also an old #139159 though symptoms reported are different there and there were some fixes to introspection code path since then.