nixpkgs/pkgs/development/libraries/kde-frameworks/kwindowsystem/platform-plugins-path.patch

Index: kwindowsystem-5.64.0/src/pluginwrapper.cpp
===================================================================
--- kwindowsystem-5.64.0.orig/src/pluginwrapper.cpp
+++ kwindowsystem-5.64.0/src/pluginwrapper.cpp
@@ -37,16 +37,10 @@ Q_GLOBAL_STATIC(KWindowSystemPluginWrapp
 static QStringList pluginCandidates()
 {
     QStringList ret;
-    const auto paths = QCoreApplication::libraryPaths();
-    for (const QString &path : paths) {
-        QDir pluginDir(path + QLatin1String("/kf5/org.kde.kwindowsystem.platforms"));
-        if (!pluginDir.exists()) {
-            continue;
-        }
-        const auto entries = pluginDir.entryList(QDir::Files | QDir::NoDotAndDotDot);
-        for (const QString &entry : entries) {
-            ret << pluginDir.absoluteFilePath(entry);
-        }
+    QDir pluginDir(QLatin1String(NIXPKGS_QT_PLUGIN_PATH) + QLatin1Literal("/kf5/org.kde.kwindowsystem.platforms"));
+    const auto entries = pluginDir.entryList(QDir::Files | QDir::NoDotAndDotDot);
+    for (const QString &entry : entries) {
+        ret << pluginDir.absoluteFilePath(entry);
     }
     return ret;
 }