From 461466306ef3cef014c8ca4899879a77993b6f7d Mon Sep 17 00:00:00 2001
From: Graham Bennett <graham@grahambennett.org>
Date: Thu, 22 Jul 2021 21:58:02 +0100
Subject: [PATCH] octaveFull: set QT_MAC_WANTS_LAYER=1 on Darwin

This avoids a Qt 5.12 problem on Big Sur:
https://bugreports.qt.io/browse/QTBUG-87014
---
 pkgs/development/interpreters/octave/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/interpreters/octave/default.nix b/pkgs/development/interpreters/octave/default.nix
index 825b035d7a6f..e8228d23b0c9 100644
--- a/pkgs/development/interpreters/octave/default.nix
+++ b/pkgs/development/interpreters/octave/default.nix
@@ -187,6 +187,11 @@ let
     # Fix linker error on Darwin (see https://trac.macports.org/ticket/61865)
     NIX_LDFLAGS = lib.optionalString stdenv.isDarwin "-lobjc";
 
+    # Avoid Qt 5.12 problem on Big Sur: https://bugreports.qt.io/browse/QTBUG-87014
+    qtWrapperArgs = lib.optionals stdenv.isDarwin [
+      "--set QT_MAC_WANTS_LAYER 1"
+    ];
+
     # See https://savannah.gnu.org/bugs/?50339
     F77_INTEGER_8_FLAG = if use64BitIdx then "-fdefault-integer-8" else "";