From a8ec48a4c7d330ce57b5d0de3ad23876aa16369e Mon Sep 17 00:00:00 2001
From: Orivej Desh <orivej@gmx.fr>
Date: Fri, 27 Aug 2021 19:17:33 +0000
Subject: [PATCH] musescore: fix JACK output (#135740)

It needs to load libjack in audio/drivers/jackweakapi.cpp.
---
 pkgs/applications/audio/musescore/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/audio/musescore/default.nix b/pkgs/applications/audio/musescore/default.nix
index c2a2e7b96031..4b784272c35b 100644
--- a/pkgs/applications/audio/musescore/default.nix
+++ b/pkgs/applications/audio/musescore/default.nix
@@ -27,6 +27,8 @@ mkDerivation rec {
   ];
 
   qtWrapperArgs = [
+    # MuseScore JACK backend loads libjack at runtime.
+    "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ libjack2 ]}"
     # Work around crash on update from 3.4.2 to 3.5.0
     # https://bugreports.qt.io/browse/QTBUG-85967
     "--set QML_DISABLE_DISK_CACHE 1"