From 20d4e8bd392ac12a9942fe6a21d2d73ed39231ea Mon Sep 17 00:00:00 2001
From: Viacheslav Lotsmanov <lotsmanov89@gmail.com>
Date: Tue, 6 Jul 2021 04:45:54 +0300
Subject: [PATCH] psi-plus: bugfix for missing gstreamer dependencies
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Voice messages don’t work without gstreamer “base” and “good” plugins.
This change adds a an override for GST_PLUGIN_SYSTEM_PATH_1_0
environment variable providing necessary dependencies.
---
 .../instant-messengers/psi-plus/default.nix         | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkgs/applications/networking/instant-messengers/psi-plus/default.nix b/pkgs/applications/networking/instant-messengers/psi-plus/default.nix
index 03f8f7b961ab..c180cdb4e01f 100644
--- a/pkgs/applications/networking/instant-messengers/psi-plus/default.nix
+++ b/pkgs/applications/networking/instant-messengers/psi-plus/default.nix
@@ -3,6 +3,10 @@
 , libidn, qca-qt5, libXScrnSaver, hunspell
 , libsecret, libgcrypt, libotr, html-tidy, libgpgerror, libsignal-protocol-c
 , usrsctp
+
+# Voice messages
+, voiceMessagesSupport ? true
+, gst_all_1
 }:
 
 mkDerivation rec {
@@ -27,8 +31,17 @@ mkDerivation rec {
     libidn qca-qt5 libXScrnSaver hunspell
     libsecret libgcrypt libotr html-tidy libgpgerror libsignal-protocol-c
     usrsctp
+  ] ++ lib.optionals voiceMessagesSupport [
+    gst_all_1.gst-plugins-base
+    gst_all_1.gst-plugins-good
   ];
 
+  preFixup = lib.optionalString voiceMessagesSupport ''
+    qtWrapperArgs+=(
+      --prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0"
+    )
+  '';
+
   meta = with lib; {
     homepage = "https://psi-plus.com";
     description = "XMPP (Jabber) client";