From ae75c888085d45c571c7fe0e021611f4cc3b7f03 Mon Sep 17 00:00:00 2001
From: Thomas Tuegel <ttuegel@gmail.com>
Date: Mon, 25 Jan 2016 06:31:06 -0600
Subject: qt55.qtbase: upstream patch for backing store issue

The included patch from upstream fixes the issue described here:
https://bugreports.qt.io/browse/QTBUG-48321
The backing store of certain widgets was being improperly invalidated,
leading to display bugs in, e.g. VLC.

This patch is included in Qt 5.6, so we should remove it when we
upgrade.
---
 pkgs/development/libraries/qt-5/5.5/qtbase/default.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'pkgs/development/libraries/qt-5')

diff --git a/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix b/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
index 0dd17ed699bb4..68c209e60090b 100644
--- a/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
+++ b/pkgs/development/libraries/qt-5/5.5/qtbase/default.nix
@@ -26,6 +26,12 @@
 let
   inherit (srcs.qt5) version;
   system-x86_64 = lib.elem stdenv.system lib.platforms.x86_64;
+
+  dontInvalidateBacking = fetchurl {
+    url = "https://codereview.qt-project.org/gitweb?p=qt/qtbase.git;a=patch;h=0f68f8920573cdce1729a285a92ac8582df32841;hp=24c50f8dcf7fa61ac3c3d4d6295c259a104a2b8c";
+    name = "qtbug-48321-dont-invalidate-backing-store.patch";
+    sha256 = "07vnndmvri73psz0nrs2hg0zw2i4b1k1igy2al6kwjbp7d5xpglr";
+  };
 in
 
 stdenv.mkDerivation {
@@ -51,6 +57,10 @@ stdenv.mkDerivation {
 
   postPatch =
     ''
+      cd qtbase
+      patch -p1 <${dontInvalidateBacking}
+      cd ..
+
       substituteInPlace configure --replace /bin/pwd pwd
       substituteInPlace qtbase/configure --replace /bin/pwd pwd
       substituteInPlace qtbase/src/corelib/global/global.pri --replace /bin/ls ${coreutils}/bin/ls
-- 
cgit 1.4.1