fix a couple of compiler warnings

src/Gui/DlgPropertyLink.cpp

@@ -155,7 +155,7 @@ void DlgPropertyLink::on_checkObjectType_toggled(bool on)
     findObjects(on);
 }
 
-void DlgPropertyLink::on_searchBox_textChanged(const QString& search)
+void DlgPropertyLink::on_searchBox_textChanged(const QString& /*search*/)
 {
     ui->listWidget->clear();
     bool on = ui->checkObjectType->isChecked();

src/Mod/Sketcher/App/Constraint.cpp

@@ -86,8 +86,8 @@ Constraint::Constraint(const Constraint& from)
   LabelDistance(from.LabelDistance),
   LabelPosition(from.LabelPosition),
   isDriving(from.isDriving),
-  tag(from.tag),
-  InternalAlignmentIndex(from.InternalAlignmentIndex)
+  InternalAlignmentIndex(from.InternalAlignmentIndex),
+  tag(from.tag)
 {
 }
 

src/Mod/Sketcher/App/planegcs/Geo.cpp

@@ -658,9 +658,8 @@ DeriVector2 BSpline::CalculateNormal(Point& p, double* derivparam)
     return ret;
 }
 
-DeriVector2 BSpline::Value(double u, double du, double* derivparam)
+DeriVector2 BSpline::Value(double /*u*/, double /*du*/, double* /*derivparam*/)
 {
-
     // place holder
     DeriVector2 ret = DeriVector2();
 

src/Mod/Sketcher/Gui/CommandCreateGeo.cpp

@@ -4324,8 +4324,8 @@ public:
     DrawSketchHandlerBSpline(int constructionMethod)
       : Mode(STATUS_SEEK_FIRST_CONTROLPOINT)
       , EditCurve(2)
-      , ConstrMethod(constructionMethod)
       , CurrentConstraint(0)
+      , ConstrMethod(constructionMethod)
     {
         std::vector<AutoConstraint> sugConstr1;
         sugConstr.push_back(sugConstr1);
@@ -4515,7 +4515,6 @@ protected:
     
     int CurrentConstraint;
     int ConstrMethod;
-
 };
 
 DEF_STD_CMD_A(CmdSketcherCreateBSpline)