Merge pull request #245571 from Misterio77/qt6gtk2

qt6Packages.qt6gtk2: init at 0.2

nixos/modules/config/qt.nix

···
       pkgs.qgnomeplatform-qt6
       pkgs.adwaita-qt6
     ]
-    else if isQtStyle then [ pkgs.libsForQt5.qtstyleplugins ]
+    else if isQtStyle then [ pkgs.libsForQt5.qtstyleplugins pkgs.qt6Packages.qt6gtk2 ]
     else if isQt5ct then [ pkgs.libsForQt5.qt5ct pkgs.qt6Packages.qt6ct ]
     else if isLxqt then [ pkgs.lxqt.lxqt-qtplugin pkgs.lxqt.lxqt-config ]
     else if isKde then [ pkgs.libsForQt5.plasma-integration pkgs.libsForQt5.systemsettings ]
···
           "adwaita-qt"
           "adwaita-qt6"
           ["libsForQt5" "qtstyleplugins"]
+          ["qt6Packages" "qt6gtk2"]
         ];
         description = lib.mdDoc ''
           Selects the style to use for Qt applications.

pkgs/tools/misc/qt6gtk2/default.nix

···
+{ fetchFromGitHub, lib, stdenv, gtk2, pkg-config, qmake, qtbase }:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "qt6gtk2";
+  version = "0.2";
+
+  src = fetchFromGitHub {
+    owner = "trialuser02";
+    repo = finalAttrs.pname;
+    rev = finalAttrs.version;
+    hash = "sha256-g5ZCwTnNEJJ57zEwNqMxrl0EWYJMt3PquZ2IsmxQYqk=";
+  };
+
+  buildInputs = [ gtk2 qtbase ];
+  nativeBuildInputs = [ pkg-config qmake ];
+
+  dontWrapQtApps = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/lib/qt-6/plugins/{platformthemes,styles}
+    cp -pr src/qt6gtk2-qtplugin/libqt6gtk2.so $out/lib/qt-6/plugins/platformthemes
+    cp -pr src/qt6gtk2-style/libqt6gtk2-style.so $out/lib/qt-6/plugins/styles
+
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "GTK+2.0 integration plugins for Qt6";
+    license = lib.licenses.gpl2Plus;
+    homepage = "https://github.com/trialuser02/qt6gtk2";
+    maintainers = [ lib.maintainers.misterio77 ];
+    platforms = lib.platforms.linux;
+  };
+})

pkgs/top-level/qt6-packages.nix

···
 
   qt6ct = callPackage ../tools/misc/qt6ct { };
 
+  qt6gtk2 = callPackage ../tools/misc/qt6gtk2 { };
+
   qtkeychain = callPackage ../development/libraries/qtkeychain {
     inherit (pkgs.darwin.apple_sdk.frameworks) CoreFoundation Security;
   };