kdb: fix compilation

pkgs/development/libraries/kdb/default.nix

@@ -1,7 +1,15 @@
-{
-  mkDerivation, lib, fetchurl,
-  extra-cmake-modules,
-  qtbase, qttranslations, kcoreaddons, python2, sqlite, postgresql, libmysqlclient
+{ mkDerivation
+, lib
+, fetchurl
+, fetchpatch
+, extra-cmake-modules
+, qtbase
+, qttranslations
+, kcoreaddons
+, python2
+, sqlite
+, postgresql
+, libmysqlclient
 }:
 
 mkDerivation rec {
@@ -13,6 +21,19 @@ mkDerivation rec {
     sha256 = "0s909x34a56n3xwhqz27irl2gbzidax0685w2kf34f0liny872cg";
   };
 
+  patches = [
+    # fix build with newer QT versions
+    (fetchpatch {
+      url = "https://github.com/KDE/kdb/commit/b36d74f13a1421437a725fb74502c993c359392a.patch";
+      sha256 = "sha256-ENMZTUZ3yCKUhHPMUcDe1cMY2GLBz0G3ZvMRyj8Hfrw=";
+    })
+    # fix build with newer posgresql versions
+    (fetchpatch {
+      url = "https://github.com/KDE/kdb/commit/40cdaea4d7824cc1b0d26e6ad2dcb61fa2077911.patch";
+      sha256 = "sha256-cZpX6L/NZX3vztnh0s2+v4J7kBcKgUdecY53LRp8CwM=";
+    })
+  ];
+
   nativeBuildInputs = [ extra-cmake-modules ];
 
   buildInputs = [ qttranslations kcoreaddons python2 sqlite postgresql libmysqlclient ];