From a4b4cd0710c7d92f6e84ac5655c61154714f198a Mon Sep 17 00:00:00 2001
From: Piotr Bogdan <ppbogdan@gmail.com>
Date: Wed, 22 Mar 2017 14:33:22 +0000
Subject: [PATCH] lightdm-greeters service: add extraConfig option (#24135)

---
 .../x11/display-managers/lightdm-greeters/gtk.nix      | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/nixos/modules/services/x11/display-managers/lightdm-greeters/gtk.nix b/nixos/modules/services/x11/display-managers/lightdm-greeters/gtk.nix
index dfda90978b1e..1d5dcb2c7cbe 100644
--- a/nixos/modules/services/x11/display-managers/lightdm-greeters/gtk.nix
+++ b/nixos/modules/services/x11/display-managers/lightdm-greeters/gtk.nix
@@ -45,6 +45,7 @@ let
     theme-name = ${cfg.theme.name}
     icon-theme-name = ${cfg.iconTheme.name}
     background = ${ldmcfg.background}
+    ${cfg.extraConfig}
     '';
 
 in
@@ -103,6 +104,15 @@ in
 
       };
 
+      extraConfig = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Extra configuration that should be put in the lightdm-gtk-greeter.conf
+          configuration file.
+        '';
+      };
+
     };
 
   };