From c095ce86082f6baf0acfc052fc5506d2b261b6b7 Mon Sep 17 00:00:00 2001
From: Franz Pletz <fpletz@fnordicwalking.de>
Date: Sun, 3 Nov 2019 14:11:53 +0100
Subject: [PATCH] gnome3.gnome-screensaver: fix build with gcc9

---
 pkgs/desktops/gnome-3/misc/gnome-screensaver/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/desktops/gnome-3/misc/gnome-screensaver/default.nix b/pkgs/desktops/gnome-3/misc/gnome-screensaver/default.nix
index b1e9cde906cf..4a530e54de71 100644
--- a/pkgs/desktops/gnome-3/misc/gnome-screensaver/default.nix
+++ b/pkgs/desktops/gnome-3/misc/gnome-screensaver/default.nix
@@ -71,6 +71,8 @@ stdenv.mkDerivation rec {
     systemd
   ];
 
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=return-type" ];
+
   configureFlags = [ "--enable-locking" "--with-systemd=yes" ];
 
   enableParallelBuilding = true;