From 797f7d6749f2bfeba99edbe4cf010a0674254705 Mon Sep 17 00:00:00 2001
From: teutat3s <10206665+teutat3s@users.noreply.github.com>
Date: Sun, 12 Nov 2023 14:07:51 +0100
Subject: [PATCH] signal-desktop: fix screensharing on wayland

Without this change, starting a screenshare in signal-desktop on wayland
(sway) only produces a blank, black screen after selecting which screen
to share, with the following error in the logs:

ERROR:shared_screencast_stream.cc(412)] Unable to open PipeWire library
ERROR:base_capturer_pipewire.cc(81)] ScreenCastPortal failed: 1

Upstream has fixed screensharing in general according to
https://github.com/signalapp/Signal-Desktop/issues/5350#issuecomment-1664092786.
---
 .../networking/instant-messengers/signal-desktop/generic.nix   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
index 38719920d8a2..aec46a8c0f6b 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
@@ -15,6 +15,7 @@
 , at-spi2-atk
 , cairo
 , pango
+, pipewire
 , gdk-pixbuf
 , glib
 , freetype
@@ -150,7 +151,7 @@ stdenv.mkDerivation rec {
 
   preFixup = ''
     gappsWrapperArgs+=(
-      --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ stdenv.cc.cc ] }"
+      --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ stdenv.cc.cc pipewire ] }"
       # Currently crashes see https://github.com/NixOS/nixpkgs/issues/222043
       #--add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations}}"
       --suffix PATH : ${lib.makeBinPath [ xdg-utils ]}