From 94af8ebde202bf2f0117cf4d5a1d78f75032448a Mon Sep 17 00:00:00 2001
From: worldofpeace <worldofpeace@users.noreply.github.com>
Date: Fri, 21 Dec 2018 22:19:40 -0500
Subject: nixos/displayManager: only install wayland sessions if they exist in
 extraSessionFilePackages

Not everyone is using wayland just yet.
---
 nixos/modules/services/x11/display-managers/default.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'nixos')

diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 035029150c81..047321bd9495 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -194,9 +194,12 @@ let
         ${xorg.lndir}/bin/lndir ${pkg}/share/xsessions $out/share/xsessions
       '') cfg.displayManager.extraSessionFilePackages}
 
-      mkdir -p "$out/share/wayland-sessions"
+      
       ${concatMapStrings (pkg: ''
-        ${xorg.lndir}/bin/lndir ${pkg}/share/wayland-sessions $out/share/wayland-sessions
+        if test -d ${pkg}/share/wayland-sessions; then
+          mkdir -p "$out/share/wayland-sessions"
+          ${xorg.lndir}/bin/lndir ${pkg}/share/wayland-sessions $out/share/wayland-sessions
+        fi
       '') cfg.displayManager.extraSessionFilePackages}
     '';
 
-- 
cgit 1.4.1