kdePackages.extra-cmake-modules: hack search paths into ECMFindQtModule

  outputs = [ "out" ];

  patches = [

    ./search-qml.patch

  ];

  # Packages that have an Android APK (e.g. KWeather) require Python3 at build time.

  # See: https://invent.kde.org/frameworks/extra-cmake-modules/-/blob/v6.1.0/modules/ECMAddAndroidApk.cmake?ref_type=tags#L57

  propagatedNativeBuildInputs = [

ecmEnvHook() {

    addToSearchPath XDG_DATA_DIRS "$1/share"

    addToSearchPath XDG_CONFIG_DIRS "$1/etc/xdg"

    if [ -n "${qtQmlPrefix-}" ]; then

      addToSearchPath NIXPKGS_QML_SEARCH_PATHS "$1/$qtQmlPrefix"

    fi

}

addEnvHooks "$hostOffset" ecmEnvHook

diff --git a/modules/ECMFindQmlModule.cmake.in b/modules/ECMFindQmlModule.cmake.in

index 7db160c1..03fa6916 100644

--- a/modules/ECMFindQmlModule.cmake.in

+++ b/modules/ECMFindQmlModule.cmake.in

@@ -15,8 +15,8 @@ if (QT_MAJOR_VERSION EQUAL "6")

     include(${ECM_MODULE_DIR}/ECMQmlModule.cmake)

     # Get the qmldir file

     _ecm_qmlmodule_uri_to_path(MODULEDIR "@MODULE_NAME@" "@VERSION@")

-    set(KDE_QMLDIR "${KDE_INSTALL_FULL_QMLDIR}/${MODULEDIR}")

-    find_file(QMLDIR_FILE qmldir ${KDE_QMLDIR} NO_CACHE)

+    find_file(QMLDIR_FILE qmldir PATHS ENV NIXPKGS_QML_SEARCH_PATHS PATH_SUFFIXES ${MODULEDIR} NO_CACHE NO_DEFAULT_PATHS)

+    cmake_path(GET QMLDIR_FILE PARENT_PATH KDE_QMLDIR)

     if (NOT QMLDIR_FILE) # Check the install destination, the QT_PLUGIN_PATH might not be set up correctly at this point

         # Check the Qt installation

         ecm_query_qt(qt_qml_dir QT_INSTALL_QML)