lomiri.lomiri-action-api: Enable qdoc docs

pkgs/desktops/lomiri/qml/lomiri-action-api/default.nix

@@ -6,9 +6,11 @@
 , cmake
 , dbus
 , dbus-test-runner
+, doxygen
 , pkg-config
 , qtbase
 , qtdeclarative
+, qttools
 , validatePkgConfig
 }:
 
@@ -26,20 +28,27 @@ stdenv.mkDerivation (finalAttrs: {
   outputs = [
     "out"
     "dev"
+    "doc"
   ];
 
   postPatch = ''
     # Queries QMake for broken Qt variable: '/build/qtbase-<commit>/$(out)/$(qtQmlPrefix)'
     substituteInPlace qml/Lomiri/Action/CMakeLists.txt \
       --replace 'exec_program(''${QMAKE_EXECUTABLE} ARGS "-query QT_INSTALL_QML" OUTPUT_VARIABLE QT_IMPORTS_DIR)' 'set(QT_IMPORTS_DIR "''${CMAKE_INSTALL_PREFIX}/${qtbase.qtQmlPrefix}")'
+
+    # Fix section labels
+    substituteInPlace documentation/qml/pages/* \
+      --replace-warn '\part' '\section1'
   '';
 
   strictDeps = true;
 
   nativeBuildInputs = [
     cmake
+    doxygen
     pkg-config
     qtdeclarative
+    qttools # qdoc
     validatePkgConfig
   ];
 
@@ -57,8 +66,7 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "ENABLE_TESTING" finalAttrs.finalPackage.doCheck)
     # Use vendored libhud2, TODO package libhud2 separately?
     (lib.cmakeBool "use_libhud2" false)
-    # QML docs need qdoc, https://github.com/NixOS/nixpkgs/pull/245379
-    (lib.cmakeBool "GENERATE_DOCUMENTATION" false)
+    (lib.cmakeBool "GENERATE_DOCUMENTATION" true)
   ];
 
   dontWrapQtApps = true;