syncthingtray: support building with qt6

pkgs/applications/misc/syncthingtray/default.nix

@@ -1,9 +1,8 @@
-{ mkDerivation
-, lib
+{ lib
 , stdenv
 , fetchFromGitHub
-, substituteAll
 , qtbase
+, qtsvg
 , qtwebengine
 , qtdeclarative
 , extra-cmake-modules
@@ -46,6 +45,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     qtbase
+    qtsvg
     cpp-utilities
     qtutilities
     boost
@@ -74,7 +74,7 @@ stdenv.mkDerivation (finalAttrs: {
   doCheck = !stdenv.isDarwin;
   preCheck = ''
     export QT_QPA_PLATFORM=offscreen
-    export QT_PLUGIN_PATH="${qtbase.bin}/${qtbase.qtPluginPrefix}"
+    export QT_PLUGIN_PATH="${lib.getBin qtbase}/${qtbase.qtPluginPrefix}"
   '';
   # don't test --help  on Darwin because output is .app
   doInstallCheck = !stdenv.isDarwin;
@@ -83,6 +83,8 @@ stdenv.mkDerivation (finalAttrs: {
   '';
 
   cmakeFlags = [
+    "-DQT_PACKAGE_PREFIX=Qt${lib.versions.major qtbase.version}"
+    "-DKF_PACKAGE_PREFIX=KF${lib.versions.major qtbase.version}"
     "-DBUILD_TESTING=ON"
     # See https://github.com/Martchus/syncthingtray/issues/208
     "-DEXCLUDE_TESTS_FROM_ALL=OFF"

pkgs/top-level/all-packages.nix

@@ -35322,6 +35322,10 @@ with pkgs;
     plasmoidSupport = false;
     systemdSupport = true;
   };
+  syncthingtray-qt6 = kdePackages.callPackage ../applications/misc/syncthingtray {
+    # renamed in KF5 -> KF6
+    plasma-framework = kdePackages.libplasma;
+  };
 
   synergy = libsForQt5.callPackage ../applications/misc/synergy {
     stdenv = if stdenv.isDarwin then darwin.apple_sdk_11_0.stdenv else stdenv;