From 90db9641cb072c48e2558a592b3c74f912213a8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20M=C3=B6ller?= <fabianm88@gmail.com>
Date: Tue, 25 Aug 2020 20:13:45 +0200
Subject: [PATCH] qt5.qtwebengine: fix build with bison-3.7 (#96295)

---
 .../libraries/qt-5/modules/qtwebengine.nix          | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
index c0db5915b947..40b2d6837c53 100644
--- a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
@@ -15,7 +15,7 @@
 , gn
 , cups, darwin, openbsm, runCommand, xcbuild, writeScriptBin
 , ffmpeg_3 ? null
-, lib, stdenv
+, lib, stdenv, fetchpatch
 }:
 
 with stdenv.lib;
@@ -38,6 +38,17 @@ qtModule {
   # which cannot be set at the same time as -Wformat-security
   hardeningDisable = [ "format" ];
 
+  patches = [
+    # Fix build with bison-3.7: https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=1a53f599
+    (fetchpatch {
+      name = "qtwebengine-bison-3.7-build.patch";
+      url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=1a53f599";
+      sha256 = "1nqpyn5fq37q7i9nasag6i14lnz0d7sld5ikqhlm8qwq9d7gbmjy";
+      stripLen = 1;
+      extraPrefix = "src/3rdparty/";
+    })
+  ];
+
   postPatch =
     # Patch Chromium build tools
     ''