+ fix build failure in debug build type

src/Mod/Sketcher/Gui/ViewProviderSketch.cpp

@@ -1168,13 +1168,20 @@ void ViewProviderSketch::moveConstraint(int constNum, const Base::Vector2D &toPo
 
     const std::vector<Sketcher::Constraint *> &constrlist = getSketchObject()->Constraints.getValues();
     Constraint *Constr = constrlist[constNum];
-    
+
+#ifdef _DEBUG
+    int intGeoCount = getSketchObject()->getHighestCurveIndex() + 1;
+    int extGeoCount = getSketchObject()->getExternalGeometryCount();
+#endif
+
     // with memory allocation
     const std::vector<Part::Geometry *> geomlist = getSketchObject()->getSolvedSketch().extractGeometry(true, true);
 
+#ifdef _DEBUG
     assert(int(geomlist.size()) == extGeoCount + intGeoCount);
     assert((Constr->First >= -extGeoCount && Constr->First < intGeoCount)
            || Constr->First != Constraint::GeoUndef);
+#endif
 
     if (Constr->Type == Distance || Constr->Type == DistanceX || Constr->Type == DistanceY ||
         Constr->Type == Radius) {