From 93111343dc30d9418008232ab970cbd33471346b Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Thu, 8 Oct 2020 18:37:25 +0200
Subject: [PATCH] qgis: consistently use qt 5.14

---
 pkgs/top-level/all-packages.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e3b888ba238..bcaaff86b9e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -22878,7 +22878,18 @@ in
 
   qemu-utils = callPackage ../applications/virtualization/qemu/utils.nix {};
 
-  qgis-unwrapped = libsForQt514.callPackage ../applications/gis/qgis/unwrapped.nix {
+  # Our 3.10 LTS cannot use a newer Qt (5.15) version because it requires qtwebkit
+  # and our qtwebkit fails to build with 5.15. 01bcfd3579219d60e5d07df309a000f96b2b658b
+  qgis-unwrapped = let
+    pkgs_ = pkgs.extend(_: prev: {
+      pythonInterpreters = prev.pythonInterpreters.override(oldAttrs: {
+        pkgs = oldAttrs.pkgs.extend(_: _: {
+          qt5 = pkgs.qt514;
+          libsForQt5 = pkgs.libsForQt514;
+        });
+      });
+    });
+  in pkgs_.libsForQt514.callPackage ../applications/gis/qgis/unwrapped.nix {
       withGrass = false;
   };