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nixpkgs/nixos/modules/config/gtk-exe-env.nix

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Nix

{ config, pkgs, lib, ... }:
{
imports = [
];
options = {
gtkPlugins = lib.mkOption {
type = lib.types.listOf lib.types.path;
default = [];
description = ''
Plugin packages for GTK+ such as input methods.
'';
};
};
config = {
environment.variables = if builtins.length config.gtkPlugins > 0
then
let
paths = [ pkgs.gtk2 pkgs.gtk3 ] ++ config.gtkPlugins;
env = pkgs.buildEnv {
name = "gtk-exe-env";
inherit paths;
postBuild = lib.concatStringsSep "\n"
(map (d: d.gtkExeEnvPostBuild or "") paths);
ignoreCollisions = true;
};
in {
GTK_EXE_PREFIX = builtins.toString env;
GTK_PATH = [
"${env}/lib/gtk-2.0"
"${env}/lib/gtk-3.0"
];
}
else {};
};
}