Index: sources/view/settings/VSettings.cpp
===================================================================
diff -u -rdb13a6a2cb1e27bacf245ac251997b3f9c54c01b -rc2f474ff07c98aa350c445a2474976a3cf985f40
--- sources/view/settings/VSettings.cpp	(.../VSettings.cpp)	(revision db13a6a2cb1e27bacf245ac251997b3f9c54c01b)
+++ sources/view/settings/VSettings.cpp	(.../VSettings.cpp)	(revision c2f474ff07c98aa350c445a2474976a3cf985f40)
@@ -220,7 +220,9 @@
 {
     TKeysList keysList;
     Q_UNUSED(vGroup); Q_UNUSED(vKeys) // TODO: Qt6 port - remove
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 /* TODO: Qt6 port - QRegularExpression
+#endif
     for ( quint16 keyIndex = 0; keyIndex < vKeys.count(); keyIndex++ ) {
         QRegExp regx("\\{\\s*\\d+\\s*:\\s*\\d+\\s*:\\s*\\w*\\s*:\\s*\\d*\\s*\\}");
         QString key = vKeys[keyIndex];
@@ -251,7 +253,9 @@
         keyList  += key;
         keysList += keyList;
     }
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 */
+#endif
     return keysList;
 }