From a285cead446ea6a14e0a1c090ec81180eb88afd0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D1=83=D1=85=D0=B0=D1=80=D0=B8=D0=BA?=
 <suhr@i2pmail.org>
Date: Thu, 3 Jan 2019 09:38:36 +0300
Subject: [PATCH] nixos/display-managers: allow pure wayland sessions

---
 nixos/modules/services/x11/display-managers/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 047321bd949..0e87e6adbab 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -191,7 +191,9 @@ let
       '') names}
 
       ${concatMapStrings (pkg: ''
-        ${xorg.lndir}/bin/lndir ${pkg}/share/xsessions $out/share/xsessions
+        if test -d ${pkg}/share/xsessions; then
+          ${xorg.lndir}/bin/lndir ${pkg}/share/xsessions $out/share/xsessions
+        fi
       '') cfg.displayManager.extraSessionFilePackages}