diff --git a/cfg/qt.cfg b/cfg/qt.cfg
index bcc24ae4b1b..9ceff9140d3 100644
--- a/cfg/qt.cfg
+++ b/cfg/qt.cfg
@@ -5242,6 +5242,7 @@
       <check>QRect</check>
       <check>QSize</check>
       <check>QPoint</check>
+      <check>QRegion</check>
     </unusedvar>
     <operatorEqVarError>
       <suppress>QMutex</suppress>
diff --git a/test/cfg/qt.cpp b/test/cfg/qt.cpp
index 1c4556051a9..5fcb803e372 100644
--- a/test/cfg/qt.cpp
+++ b/test/cfg/qt.cpp
@@ -24,6 +24,7 @@
 #include <QLoggingCategory>
 #include <QTest>
 #include <QRectF>
+#include <QRegion>
 #include <QSizeF>
 #include <QPointF>
 #include <QRect>
@@ -32,6 +33,24 @@
 
 #include <cstdio>
 
+void unreadVariable_QRegion(const int x, const QRegion::RegionType type, const QPolygon &polygon, const QBitmap &bm, const QRegion &region, const Qt::FillRule fillRule)
+{
+    // cppcheck-suppress unreadVariable
+    QRegion a;
+    // cppcheck-suppress unreadVariable
+    QRegion b{};
+    // cppcheck-suppress unreadVariable
+    QRegion c{x,x,x,x};
+    // cppcheck-suppress unreadVariable
+    QRegion d{x,x,x,x, type};
+    // cppcheck-suppress unreadVariable
+    QRegion e{polygon, fillRule};
+    // cppcheck-suppress unreadVariable
+    QRegion f{bm};
+    // cppcheck-suppress unreadVariable
+    QRegion g{region};
+}
+
 void unreadVariable_QPoint(const QPoint &s)
 {
     // cppcheck-suppress unreadVariable
@@ -721,14 +740,15 @@ bool knownConditionTrueFalse_QString_count(const QString& s) // #11036
 
 void unusedVariable_qtContainers() // #10689
 {
-  // cppcheck-suppress unusedVariable
-  QMap<int, int> qm;
-  // cppcheck-suppress unusedVariable
-  QSet<int> qs;
-  // cppcheck-suppress unusedVariable
-  QMultiMap<int, int> qmm;
-  // cppcheck-suppress unusedVariable
-  QQueue<int> qq;
-  // cppcheck-suppress unusedVariable
-  QLatin1String ql1s;
-}
\ No newline at end of file
+    // cppcheck-suppress unusedVariable
+    QMap<int, int> qm;
+    // cppcheck-suppress unusedVariable
+    QSet<int> qs;
+    // cppcheck-suppress unusedVariable
+    QMultiMap<int, int> qmm;
+    // cppcheck-suppress unusedVariable
+    QQueue<int> qq;
+    // cppcheck-suppress unusedVariable
+    QLatin1String ql1s;
+}
+
diff --git a/test/cfg/runtests.sh b/test/cfg/runtests.sh
index 00cc18cd843..744d9aa7284 100755
--- a/test/cfg/runtests.sh
+++ b/test/cfg/runtests.sh
@@ -65,9 +65,9 @@ function gnu_fn {
 # qt.cpp
 function qt_fn {
     if [ $HAS_PKG_CONFIG -eq 1 ]; then
-        QTCONFIG=$(get_pkg_config_cflags Qt5Core Qt5Test)
+        QTCONFIG=$(get_pkg_config_cflags Qt5Core Qt5Test Qt5Gui)
         if [ -n "$QTCONFIG" ]; then
-            QTBUILDCONFIG=$(pkg-config --variable=qt_config Qt5Core Qt5Test)
+            QTBUILDCONFIG=$(pkg-config --variable=qt_config Qt5Core Qt5Test Qt5Gui)
             [[ $QTBUILDCONFIG =~ (^|[[:space:]])reduce_relocations($|[[:space:]]) ]] && QTCONFIG="${QTCONFIG} -fPIC"
             # TODO: get rid of the error enabling/disabling?
             set +e