libglycin

Glycin is a library for sandboxed and extendable image loading.

For most applications using it, individual image formats are loaded through binaries provided by `glycin-loaders`. The paths of these loaders must be injected into the environment, e.g. using [`wrapGAppsHook`](#ssec-gnome-hooks). `libglycin.setupHook` will do that. Additionally, for Rust projects `glycin` Rust crate itself requires a patch to become self-contained. `libglycin.patchVendorHook` will do that. This is not needed for projects using the ELF library from `libglycin` package.

Example code snippet

{
  lib,
  rustPlatform,
  libglycin,
  glycin-loaders,
  wrapGAppsHook4,
}:

rustPlatform.buildRustPackage {
  # ...

  cargoHash = "...";

  nativeBuildInputs = [
    wrapGAppsHook4
    libglycin.patchVendorHook
  ];

  buildInputs = [
    libglycin.setupHook
    glycin-loaders
  ];

  # ...
}

Variables controlling glycin-loaders

`glycinCargoDepsPath`

Path to a directory containing the glycin crate to patch. Defaults to the crate directory created by cargoSetupHook, or ./vendor/.

`dontWrapGlycinLoaders`

Disable adding the Glycin loaders path XDG_DATA_DIRS with wrapGAppsHook.

nixos.org/manual/nixpkgs/stable/hooks/libglycin.html