1 files changed, 41 insertions, 0 deletions
diff --git a/nixos/modules/config/gtk-exe-env.nix b/nixos/modules/config/gtk-exe-env.nix
new file mode 100644
index 00000000000..b565072e3a7
--- /dev/null
+++ b/nixos/modules/config/gtk-exe-env.nix
@@ -0,0 +1,41 @@
+{ 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 {};
+  };
+}