diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/core/opmaps.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/core/opmaps.cpp
index 86660fd3e..3b858d82f 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/core/opmaps.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/core/opmaps.cpp
@@ -43,6 +43,8 @@ namespace core {
         LanguageStr=LanguageType().toShortString(Language);
         Cache::Instance();
 
+//        OPMaps::MemoryCache();
+
     }
 
 
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojection.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojection.cpp
index 18688ca06..27fd90808 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojection.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojection.cpp
@@ -91,6 +91,7 @@ Size PlateCarreeProjection::GetTileMatrixMaxXY(const int &zoom)
 
 Size PlateCarreeProjection::GetTileMatrixMinXY(const int &zoom)
 {
+    Q_UNUSED(zoom);
     return Size(0, 0);
 }
 }
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojectionpergo.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojectionpergo.cpp
index 106674ad2..89d598bd6 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojectionpergo.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/internals/projections/platecarreeprojectionpergo.cpp
@@ -90,6 +90,7 @@ Size PlateCarreeProjectionPergo::GetTileMatrixMaxXY(const int &zoom)
 
 Size PlateCarreeProjectionPergo::GetTileMatrixMinXY(const int &zoom)
 {
+    Q_UNUSED(zoom)
     return Size(0, 0);
 }
 }
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/homeitem.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/homeitem.cpp
index 6dad1e034..09ef9d497 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/homeitem.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/homeitem.cpp
@@ -28,7 +28,7 @@
 namespace mapcontrol
 {
     HomeItem::HomeItem(MapGraphicItem* map,OPMapWidget* parent):safe(true),map(map),mapwidget(parent),
-        showsafearea(true),safearea(1000),altitude(0),isDragging(false),toggleRefresh(true)
+        showsafearea(true),toggleRefresh(true),safearea(1000),altitude(0),isDragging(false)
     {
         pic.load(QString::fromUtf8(":/markers/images/home2.svg"));
         pic=pic.scaled(30,30,Qt::IgnoreAspectRatio);
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
index 30eea862d..bdc60225d 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/opmapwidget.cpp
@@ -34,7 +34,7 @@ namespace mapcontrol
 {
 
     OPMapWidget::OPMapWidget(QWidget *parent, Configuration *config):QGraphicsView(parent),configuration(config),UAV(0),GPS(0),Home(0)
-      ,followmouse(true),compass(0),showuav(false),showhome(false),showDiag(false),diagGraphItem(0),diagTimer(0),overlayOpacity(1)
+      ,followmouse(true),compass(0),showuav(false),showhome(false),diagTimer(0),diagGraphItem(0),showDiag(false),overlayOpacity(1)
     {
         setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
         core=new internals::Core;
@@ -392,7 +392,6 @@ namespace mapcontrol
     }
     void OPMapWidget::WPDeleteAll()
     {
-        int x=0;
         foreach(QGraphicsItem* i,map->childItems())
         {
             WayPointItem* w=qgraphicsitem_cast<WayPointItem*>(i);
@@ -419,7 +418,9 @@ namespace mapcontrol
                 }
             }
         }
+        return false;
     }
+
     void OPMapWidget::deleteAllOverlays()
     {
         foreach(QGraphicsItem* i,map->childItems())
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/trailitem.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/trailitem.cpp
index fabf6ee9a..ae13de21b 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/trailitem.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/trailitem.cpp
@@ -37,6 +37,9 @@ TrailItem::TrailItem(internals::PointLatLng const& coord,int const& altitude, QB
 
     void TrailItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
     {
+        Q_UNUSED(option);
+        Q_UNUSED(widget);
+
         painter->setBrush(m_brush);
         painter->drawEllipse(-2,-2,4,4);
     }
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointcircle.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointcircle.cpp
index 9f045a701..aad50ef0b 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointcircle.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointcircle.cpp
@@ -60,6 +60,9 @@ int WayPointCircle::type() const
 
 void WayPointCircle::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
+    Q_UNUSED(option);
+    Q_UNUSED(widget);
+
     QPointF p1;
     QPointF p2;
     p1=QPointF(line.p1().x(),line.p1().y()+line.length());
diff --git a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointline.cpp b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointline.cpp
index 527ca46f9..ad245cbc1 100644
--- a/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointline.cpp
+++ b/ground/openpilotgcs/src/libs/opmapcontrol/src/mapwidget/waypointline.cpp
@@ -75,6 +75,8 @@ QPainterPath WayPointLine::shape() const
 }
 void WayPointLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
+    Q_UNUSED(option);
+    Q_UNUSED(widget);
 
     QPen myPen = pen();
     myPen.setColor(myColor);
diff --git a/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.cpp b/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.cpp
index 7192aabe1..10b0db0bc 100644
--- a/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.cpp
+++ b/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.cpp
@@ -492,7 +492,7 @@ QString QScienceSpinBox::stripped(const QString &t, int *pos) const
 }
 
 // reimplemented function, copied from qspinbox.cpp
-static bool isIntermediateValueHelper(qint64 num, qint64 min, qint64 max, qint64 *match)
+bool QScienceSpinBox::isIntermediateValueHelper(qint64 num, qint64 min, qint64 max, qint64 *match)
 {
     QSBDEBUG("%lld %lld %lld", num, min, max);
 
diff --git a/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.h b/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.h
index 812447840..8b2ab98ed 100644
--- a/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.h
+++ b/ground/openpilotgcs/src/libs/qscispinbox/QScienceSpinBox.h
@@ -11,7 +11,6 @@
 #include <QtCore/QDebug>
 #include <QtCore/QString>
 
-static bool isIntermediateValueHelper(qint64 num, qint64 minimum, qint64 maximum, qint64 *match = 0);
 
 class QScienceSpinBox : public QDoubleSpinBox
 {
@@ -24,6 +23,7 @@ public:
 
     QString textFromValue ( double value ) const;
     double valueFromText ( const QString & text ) const;
+    static bool isIntermediateValueHelper(qint64 num, qint64 minimum, qint64 maximum, qint64 *match = 0);
 
 private:
 	int dispDecimals;
diff --git a/ground/openpilotgcs/src/libs/utils/mytabbedstackwidget.cpp b/ground/openpilotgcs/src/libs/utils/mytabbedstackwidget.cpp
index 19d568702..3db71a316 100644
--- a/ground/openpilotgcs/src/libs/utils/mytabbedstackwidget.cpp
+++ b/ground/openpilotgcs/src/libs/utils/mytabbedstackwidget.cpp
@@ -116,6 +116,8 @@ void MyTabbedStackWidget::showWidget(int index)
 
 void MyTabbedStackWidget::insertCornerWidget(int index, QWidget *widget)
 {
+    Q_UNUSED(index);
+
     widget->hide();
 }
 
diff --git a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configccpmwidget.cpp b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configccpmwidget.cpp
index 7234ffbf4..2262316e2 100644
--- a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configccpmwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configccpmwidget.cpp
@@ -206,6 +206,7 @@ ConfigCcpmWidget::~ConfigCcpmWidget()
 
 void ConfigCcpmWidget::setupUI(QString frameType)
 {
+    Q_UNUSED(frameType);
 }
 
 void ConfigCcpmWidget::ResetActuators(GUIConfigDataUnion* configData)
diff --git a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configfixedwingwidget.cpp b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configfixedwingwidget.cpp
index ecc933eec..615ca2ef6 100644
--- a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configfixedwingwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configfixedwingwidget.cpp
@@ -290,7 +290,7 @@ bool ConfigFixedWingWidget::setupFrameFixedWing(QString airframeType)
 
     int channel;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++)
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++)
     {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
@@ -370,7 +370,7 @@ bool ConfigFixedWingWidget::setupFrameElevon(QString airframeType)
     int channel;
     double value;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++)
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++)
     {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
@@ -448,7 +448,7 @@ bool ConfigFixedWingWidget::setupFrameVtail(QString airframeType)
     int channel;
     double value;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++)
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++)
     {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
diff --git a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configgroundvehiclewidget.cpp b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configgroundvehiclewidget.cpp
index a5df943c8..45e94dd8e 100644
--- a/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configgroundvehiclewidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/cfg_vehicletypes/configgroundvehiclewidget.cpp
@@ -230,7 +230,7 @@ QString ConfigGroundVehicleWidget::updateConfigObjectsFromWidgets()
 void ConfigGroundVehicleWidget::refreshWidgetsValues(QString frameType)
 {
 	UAVDataObject*	obj;
-	UAVObjectField *field;
+//	UAVObjectField *field;
 	
     GUIConfigDataUnion config = GetConfigData();
 
@@ -298,7 +298,7 @@ bool ConfigGroundVehicleWidget::setupGroundVehicleMotorcycle(QString airframeTyp
 
     int channel;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++) {
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++) {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
     }
@@ -355,7 +355,7 @@ bool ConfigGroundVehicleWidget::setupGroundVehicleDifferential(QString airframeT
 
     int channel;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++) {
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++) {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
     }
@@ -410,7 +410,7 @@ bool ConfigGroundVehicleWidget::setupGroundVehicleCar(QString airframeType)
 
     int channel;
     //disable all
-    for (channel=0; channel<(int)VehicleConfig::CHANNEL_NUMELEM; channel++) {
+    for (channel=0; (unsigned int) channel < VehicleConfig::CHANNEL_NUMELEM; channel++) {
         setMixerType(mixer,channel,VehicleConfig::MIXERTYPE_DISABLED);
         resetMixerVector(mixer, channel);
     }
diff --git a/ground/openpilotgcs/src/plugins/config/configgadgetwidget.cpp b/ground/openpilotgcs/src/plugins/config/configgadgetwidget.cpp
index c466df760..b512a2642 100644
--- a/ground/openpilotgcs/src/plugins/config/configgadgetwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configgadgetwidget.cpp
@@ -218,6 +218,8 @@ void ConfigGadgetWidget::tabAboutToChange(int i,bool * proceed)
   */
 void ConfigGadgetWidget::updatePipXStatus(UAVObject *object)
 {
+    Q_UNUSED(object);
+
     // Restart the disconnection timer.
     pipxTimeout->start(5000);
     if (!pipxConnected)
diff --git a/ground/openpilotgcs/src/plugins/config/configpipxtremewidget.cpp b/ground/openpilotgcs/src/plugins/config/configpipxtremewidget.cpp
index 887184cfa..f4e41f9ef 100644
--- a/ground/openpilotgcs/src/plugins/config/configpipxtremewidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configpipxtremewidget.cpp
@@ -266,7 +266,9 @@ void ConfigPipXtremeWidget::updateStatus(UAVObject *object)
   */
 void ConfigPipXtremeWidget::updateSettings(UAVObject *object)
 {
-	if (!settingsUpdated)
+    Q_UNUSED(object);
+
+    if (!settingsUpdated)
 	{
 		settingsUpdated = true;
 		enableControls(true);
diff --git a/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp b/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
index 77cbeb5db..f5c19a8af 100644
--- a/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configrevowidget.cpp
@@ -68,8 +68,8 @@ public:
 ConfigRevoWidget::ConfigRevoWidget(QWidget *parent) :
     ConfigTaskWidget(parent),
     collectingData(false),
-    position(-1),
-    m_ui(new Ui_RevoSensorsWidget())
+    m_ui(new Ui_RevoSensorsWidget()),
+    position(-1)
 {
     m_ui->setupUi(this);
 
diff --git a/ground/openpilotgcs/src/plugins/coreplugin/modemanager.cpp b/ground/openpilotgcs/src/plugins/coreplugin/modemanager.cpp
index a4479bae2..aa5356705 100644
--- a/ground/openpilotgcs/src/plugins/coreplugin/modemanager.cpp
+++ b/ground/openpilotgcs/src/plugins/coreplugin/modemanager.cpp
@@ -84,6 +84,8 @@ void ModeManager::init()
 
 void ModeManager::addWidget(QWidget *widget)
 {
+    Q_UNUSED(widget);
+
     // We want the actionbar to stay on the bottom
     // so m_modeStack->cornerWidgetCount() -1 inserts it at the position immediately above
     // the actionbar
@@ -220,6 +222,8 @@ void ModeManager::aboutToRemoveObject(QObject *obj)
 
 void ModeManager::addAction(Command *command, int priority, QMenu *menu)
 {
+    Q_UNUSED(menu);
+
     m_actions.insert(command, priority);
 
     // Count the number of commands with a higher priority
diff --git a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadget.cpp b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadget.cpp
index b95082fb9..485cd7b31 100644
--- a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadget.cpp
+++ b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadget.cpp
@@ -198,6 +198,8 @@ void GCSControlGadget::sticksChangedLocally(double leftX, double leftY, double r
 
 void GCSControlGadget::gamepads(quint8 count)
 {
+    Q_UNUSED(count);
+
 //    sdlGamepad.setGamepad(0);
 //    sdlGamepad.setTickRate(JOYSTICK_UPDATE_RATE);
 }
@@ -291,7 +293,7 @@ double GCSControlGadget::constrain(double value)
 
 void GCSControlGadget::buttonState(ButtonNumber number, bool pressed)
 {
-    int state;
+//    int state;
     if ((buttonSettings[number].ActionID>0)&&(buttonSettings[number].FunctionID>0)&&(pressed))
     {//this button is configured
         ExtensionSystem::PluginManager *pm = ExtensionSystem::PluginManager::instance();
diff --git a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetoptionspage.cpp b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetoptionspage.cpp
index 1a68c6be6..d85390725 100644
--- a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetoptionspage.cpp
+++ b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetoptionspage.cpp
@@ -71,6 +71,8 @@ void GCSControlGadgetOptionsPage::buttonState(ButtonNumber number, bool pressed)
 
 void GCSControlGadgetOptionsPage::gamepads(quint8 count)
 {
+    Q_UNUSED(count);
+
     /*options_page->AvailableControllerList->clear();
     for (int i=0;i<count;i++)
     {
@@ -105,6 +107,8 @@ void GCSControlGadgetOptionsPage::axesValues(QListInt16 values)
 //creates options page widget (uses the UI file)
 QWidget *GCSControlGadgetOptionsPage::createPage(QWidget *parent)
 {
+    Q_UNUSED(parent);
+
     int i;
     options_page = new Ui::GCSControlGadgetOptionsPage();
     QWidget *optionsPageWidget = new QWidget;
diff --git a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetwidget.cpp b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetwidget.cpp
index 09e25132d..82a5f7b73 100644
--- a/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/gcscontrol/gcscontrolgadgetwidget.cpp
@@ -154,6 +154,8 @@ void GCSControlGadgetWidget::toggleArmed(int state)
 
 void GCSControlGadgetWidget::mccChanged(UAVObject * obj)
 {
+    Q_UNUSED(obj);
+
     ExtensionSystem::PluginManager *pm = ExtensionSystem::PluginManager::instance();
     UAVObjectManager *objManager = pm->getObject<UAVObjectManager>();
     UAVDataObject* flightStatus = dynamic_cast<UAVDataObject*>( objManager->getObject(QString("FlightStatus")) );
diff --git a/ground/openpilotgcs/src/plugins/gpsdisplay/gpsdisplaygadgetoptionspage.cpp b/ground/openpilotgcs/src/plugins/gpsdisplay/gpsdisplaygadgetoptionspage.cpp
index 10d89d26e..e6e9c49d1 100644
--- a/ground/openpilotgcs/src/plugins/gpsdisplay/gpsdisplaygadgetoptionspage.cpp
+++ b/ground/openpilotgcs/src/plugins/gpsdisplay/gpsdisplaygadgetoptionspage.cpp
@@ -165,6 +165,8 @@ return s1.portName<s2.portName;
 //creates options page widget (uses the UI file)
 QWidget *GpsDisplayGadgetOptionsPage::createPage(QWidget *parent)
 {
+    Q_UNUSED(parent);
+
     options_page = new Ui::GpsDisplayGadgetOptionsPage();
     QWidget *optionsPageWidget = new QWidget;
     options_page->setupUi(optionsPageWidget);
diff --git a/ground/openpilotgcs/src/plugins/gpsdisplay/nmeaparser.cpp b/ground/openpilotgcs/src/plugins/gpsdisplay/nmeaparser.cpp
index e856251ab..cca79a565 100644
--- a/ground/openpilotgcs/src/plugins/gpsdisplay/nmeaparser.cpp
+++ b/ground/openpilotgcs/src/plugins/gpsdisplay/nmeaparser.cpp
@@ -301,7 +301,7 @@ void NMEAParser::nmeaProcessGPGSV(char *packet)
 
     const int sentence_total = tokenslist.at(1).toInt(); // Number of sentences for full data
     const int sentence_index = tokenslist.at(2).toInt(); // sentence x of y
-    const int sat_count = tokenslist.at(3).toInt(); // Number of satellites in view
+//    const int sat_count = tokenslist.at(3).toInt(); // Number of satellites in view
 
     int sats = (tokenslist.size() - 4) /4;
     for(int sat = 0; sat < sats; sat++) {
diff --git a/ground/openpilotgcs/src/plugins/gpsdisplay/telemetryparser.cpp b/ground/openpilotgcs/src/plugins/gpsdisplay/telemetryparser.cpp
index e08d2be52..b0db7f291 100644
--- a/ground/openpilotgcs/src/plugins/gpsdisplay/telemetryparser.cpp
+++ b/ground/openpilotgcs/src/plugins/gpsdisplay/telemetryparser.cpp
@@ -117,7 +117,7 @@ void TelemetryParser::updateSats( UAVObject* object1) {
     UAVObjectField* azimuth = object1->getField(QString("Azimuth"));
     UAVObjectField* snr = object1->getField(QString("SNR"));
 
-    for (int i=0;i< prn->getNumElements();i++) {
+    for (unsigned int i=0;i< prn->getNumElements();i++) {
         emit satellite(i,prn->getValue(i).toInt(),elevation->getValue(i).toInt(),
                        azimuth->getValue(i).toInt(), snr->getValue(i).toInt());
     }
diff --git a/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionconfiguration.cpp b/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionconfiguration.cpp
index e90f52ab2..2fabfa8bb 100644
--- a/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionconfiguration.cpp
+++ b/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionconfiguration.cpp
@@ -34,6 +34,8 @@ IPconnectionConfiguration::IPconnectionConfiguration(QString classId, QSettings*
     m_Port(1000),
     m_UseTCP(1)
 {
+    Q_UNUSED(qSettings);
+
     settings = Core::ICore::instance()->settings();
 }
 
diff --git a/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionplugin.cpp b/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionplugin.cpp
index 5d166584c..04339b713 100644
--- a/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionplugin.cpp
+++ b/ground/openpilotgcs/src/plugins/ipconnection/ipconnectionplugin.cpp
@@ -73,7 +73,6 @@ void IPConnection::onOpenDevice(QString HostName, int Port, bool UseTCP)
 {
     QAbstractSocket *ipSocket;
     const int Timeout = 5 * 1000;
-    int state;
 
     ipConMutex.lock();
     if (UseTCP) {
@@ -177,6 +176,8 @@ QList <Core::IConnection::device> IPconnectionConnection::availableDevices()
 
 QIODevice *IPconnectionConnection::openDevice(const QString &deviceName)
 {
+    Q_UNUSED(deviceName);
+
     QString HostName;
     int Port;
     bool UseTCP;
@@ -211,6 +212,8 @@ QIODevice *IPconnectionConnection::openDevice(const QString &deviceName)
 
 void IPconnectionConnection::closeDevice(const QString &deviceName)
 {
+    Q_UNUSED(deviceName);
+
     if (ipSocket){
         ipConMutex.lock();
         emit CloseSocket(ipSocket);
diff --git a/ground/openpilotgcs/src/plugins/opmap/flightdatamodel.cpp b/ground/openpilotgcs/src/plugins/opmap/flightdatamodel.cpp
index 04bcdd93c..4bf2f664e 100644
--- a/ground/openpilotgcs/src/plugins/opmap/flightdatamodel.cpp
+++ b/ground/openpilotgcs/src/plugins/opmap/flightdatamodel.cpp
@@ -169,6 +169,7 @@ bool flightDataModel::setColumnByIndex(pathPlanData  *row,const int index,const
     default:
         return false;
     }
+    return false;
 }
 QVariant flightDataModel::getColumnByIndex(const pathPlanData *row,const int index) const
 {
diff --git a/ground/openpilotgcs/src/plugins/opmap/modelmapproxy.cpp b/ground/openpilotgcs/src/plugins/opmap/modelmapproxy.cpp
index 406d8e23d..a802d69f8 100644
--- a/ground/openpilotgcs/src/plugins/opmap/modelmapproxy.cpp
+++ b/ground/openpilotgcs/src/plugins/opmap/modelmapproxy.cpp
@@ -60,6 +60,8 @@ void modelMapProxy::WPValuesChanged(WayPointItem * wp)
 
 void modelMapProxy::currentRowChanged(QModelIndex current, QModelIndex previous)
 {
+    Q_UNUSED(previous);
+
     QList<WayPointItem*> list;
     WayPointItem * wp=findWayPointNumber(current.row());
     if(!wp)
@@ -202,6 +204,8 @@ WayPointItem * modelMapProxy::findWayPointNumber(int number)
 
 void modelMapProxy::rowsRemoved(const QModelIndex &parent, int first, int last)
 {
+    Q_UNUSED(parent);
+
     for(int x=last;x>first-1;x--)
     {
         myMap->WPDelete(x);
@@ -211,6 +215,8 @@ void modelMapProxy::rowsRemoved(const QModelIndex &parent, int first, int last)
 
 void modelMapProxy::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
 {
+    Q_UNUSED(bottomRight);
+
     WayPointItem * item=findWayPointNumber(topLeft.row());
     if(!item)
         return;
diff --git a/ground/openpilotgcs/src/plugins/opmap/opmap_edit_waypoint_dialog.cpp b/ground/openpilotgcs/src/plugins/opmap/opmap_edit_waypoint_dialog.cpp
index cab739b8e..11df41f88 100644
--- a/ground/openpilotgcs/src/plugins/opmap/opmap_edit_waypoint_dialog.cpp
+++ b/ground/openpilotgcs/src/plugins/opmap/opmap_edit_waypoint_dialog.cpp
@@ -287,5 +287,7 @@ void opmap_edit_waypoint_dialog::enableEditWidgets(bool value)
 
 void opmap_edit_waypoint_dialog::currentRowChanged(QModelIndex current, QModelIndex previous)
 {
+    Q_UNUSED(previous);
+
     mapper->setCurrentIndex(current.row());
 }
diff --git a/ground/openpilotgcs/src/plugins/opmap/opmapgadgetwidget.cpp b/ground/openpilotgcs/src/plugins/opmap/opmapgadgetwidget.cpp
index b5fb5b273..2d8e01506 100644
--- a/ground/openpilotgcs/src/plugins/opmap/opmapgadgetwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/opmap/opmapgadgetwidget.cpp
@@ -1773,7 +1773,7 @@ void OPMapGadgetWidget::onAddWayPointAct_triggered(internals::PointLatLng coord)
 
     if (m_map_mode != Normal_MapMode)
         return;
-    float alt=15;
+
     mapProxy->createWayPoint(coord);
 }
 
diff --git a/ground/openpilotgcs/src/plugins/pfd/pfdgadgetoptionspage.cpp b/ground/openpilotgcs/src/plugins/pfd/pfdgadgetoptionspage.cpp
index 89a877a0f..4268742e9 100644
--- a/ground/openpilotgcs/src/plugins/pfd/pfdgadgetoptionspage.cpp
+++ b/ground/openpilotgcs/src/plugins/pfd/pfdgadgetoptionspage.cpp
@@ -46,6 +46,7 @@ PFDGadgetOptionsPage::PFDGadgetOptionsPage(PFDGadgetConfiguration *config, QObje
 //creates options page widget (uses the UI file)
 QWidget *PFDGadgetOptionsPage::createPage(QWidget *parent)
 {
+    Q_UNUSED(parent);
 
     options_page = new Ui::PFDGadgetOptionsPage();
     //main widget
diff --git a/ground/openpilotgcs/src/plugins/qmlview/qmlviewgadgetoptionspage.cpp b/ground/openpilotgcs/src/plugins/qmlview/qmlviewgadgetoptionspage.cpp
index 8cc110d1a..f88299cdb 100644
--- a/ground/openpilotgcs/src/plugins/qmlview/qmlviewgadgetoptionspage.cpp
+++ b/ground/openpilotgcs/src/plugins/qmlview/qmlviewgadgetoptionspage.cpp
@@ -46,6 +46,7 @@ QmlViewGadgetOptionsPage::QmlViewGadgetOptionsPage(QmlViewGadgetConfiguration *c
 //creates options page widget (uses the UI file)
 QWidget *QmlViewGadgetOptionsPage::createPage(QWidget *parent)
 {
+    Q_UNUSED(parent);
 
     options_page = new Ui::QmlViewGadgetOptionsPage();
     //main widget
diff --git a/ground/openpilotgcs/src/plugins/rawhid/pjrc_rawhid_mac.cpp b/ground/openpilotgcs/src/plugins/rawhid/pjrc_rawhid_mac.cpp
index 382c43829..490ea2fdd 100644
--- a/ground/openpilotgcs/src/plugins/rawhid/pjrc_rawhid_mac.cpp
+++ b/ground/openpilotgcs/src/plugins/rawhid/pjrc_rawhid_mac.cpp
@@ -90,7 +90,7 @@ static void hid_close(hid_t *);
 static void attach_callback(void *, IOReturn, void *, IOHIDDeviceRef);
 static void detach_callback(void *, IOReturn, void *hid_mgr, IOHIDDeviceRef dev);
 static void input_callback(void *, IOReturn, void *, IOHIDReportType, uint32_t, uint8_t *, CFIndex);
-static void output_callback(hid_t *context, IOReturn ret, void *sender, IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len);
+//static void output_callback(hid_t *context, IOReturn ret, void *sender, IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len);
 static void timeout_callback(CFRunLoopTimerRef, void *);
 
 
@@ -173,7 +173,7 @@ int pjrc_rawhid::open(int max, int vid, int pid, int usage_page, int usage)
     IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
     ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
     if (ret != kIOReturnSuccess) {
-        printf("Could not start IOHIDManager");
+        qDebug()<< "Could not start IOHIDManager";
         IOHIDManagerUnscheduleFromRunLoop(hid_manager,
                                           CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
         CFRelease(hid_manager);
@@ -181,7 +181,7 @@ int pjrc_rawhid::open(int max, int vid, int pid, int usage_page, int usage)
     }
     // Set the run loop reference:
     the_correct_runloop = CFRunLoopGetCurrent();
-    printf("run loop\n");
+    qDebug() << "run loop";
     // let it do the callback for all devices
     while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
     // count up how many were added by the callback
@@ -240,7 +240,7 @@ int pjrc_rawhid::receive(int num, void *buf, int len, int timeout)
            break;
        }
        if (!hid->open) {
-           printf("pjrc_rawhid_recv, device not open\n");
+           qDebug() << "pjrc_rawhid_recv, device not open\n";
            ret = -1;
            break;
        }
@@ -263,6 +263,8 @@ int pjrc_rawhid::receive(int num, void *buf, int len, int timeout)
 //
 int pjrc_rawhid::send(int num, void *buf, int len, int timeout)
 {
+    Q_UNUSED(timeout);
+
     hid_t *hid;
     int result=-100;
 
@@ -287,6 +289,7 @@ int pjrc_rawhid::send(int num, void *buf, int len, int timeout)
 
 #endif
 #if 0
+#define TIMEOUT_FIXED
     // No matter what I tried this never actually sends an output
     // report and output_callback never gets called.  Why??
     // Did I miss something?  This is exactly the same params as
@@ -315,7 +318,7 @@ int pjrc_rawhid::send(int num, void *buf, int len, int timeout)
 
 QString pjrc_rawhid::getserial(int num) {
     hid_t *hid;
-    char buf[128];
+//    char buf[128];
 
     hid = get_hid(num);
 
@@ -358,6 +361,9 @@ void pjrc_rawhid::close(int num)
 //
 static void input_callback(void *context, IOReturn ret, void *sender, IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len)
 {
+    Q_UNUSED(type);
+    Q_UNUSED(id);
+
     buffer_t *n;
     hid_t *hid;
 
@@ -365,7 +371,7 @@ static void input_callback(void *context, IOReturn ret, void *sender, IOHIDRepor
     if (ret != kIOReturnSuccess || len < 1) return;
     hid = (hid_t*)context;
     if (!hid || hid->ref != sender) return;
-    printf("Processing packet");
+    qDebug() << "Processing packet";
     n = (buffer_t *)malloc(sizeof(buffer_t));
     if (!n) return;
     if (len > BUFFER_SIZE) len = BUFFER_SIZE;
@@ -385,6 +391,8 @@ static void input_callback(void *context, IOReturn ret, void *sender, IOHIDRepor
 
 static void timeout_callback(CFRunLoopTimerRef timer, void *info)
 {
+    Q_UNUSED(timer);
+
    //qDebug("timeout_callback\n");
    *(int *)info = 1;
    //qDebug() << "Stop CFRunLoop from timeout_callback" << CFRunLoopGetCurrent();
@@ -440,9 +448,13 @@ static void hid_close(hid_t *hid)
 
 static void detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 {
+    Q_UNUSED(context);
+    Q_UNUSED(r);
+    Q_UNUSED(hid_mgr);
+
     hid_t *p;
 
-    printf("detach callback\n");
+    qDebug()<< "detach callback";
     for (p = first_hid; p; p = p->next) {
             if (p->ref == dev) {
                     p->open = 0;
@@ -454,9 +466,13 @@ static void detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDevic
 
 static void attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 {
+    Q_UNUSED(context);
+    Q_UNUSED(r);
+    Q_UNUSED(hid_mgr);
+
     struct hid_struct *h;
 
-    printf("attach callback\n");
+    qDebug() << "attach callback";
     if (IOHIDDeviceOpen(dev, kIOHIDOptionsTypeNone) != kIOReturnSuccess) return;
     h = (hid_t *)malloc(sizeof(hid_t));
     if (!h) return;
@@ -468,15 +484,22 @@ static void attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDevic
     add_hid(h);
 }
 
+#ifdef TIMEOUT_FIXED
 static void output_callback(hid_t *context, IOReturn ret, void *sender, IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len)
 {
-        printf("output_callback, r=%d\n", ret);
-        if (ret == kIOReturnSuccess) {
-                *(int *)context = len;
-        } else {
-                // timeout if not success?
-                *(int *)context = 0;
-        }
-        CFRunLoopStop(CFRunLoopGetCurrent());
-}
+    Q_UNUSED(sender);
+    Q_UNUSED(type);
+    Q_UNUSED(id);
+    Q_UNUSED(data);
 
+    qDebug()<< QString("output_callback, r=%1").arg(ret);
+//    printf("output_callback, r=%d\n", ret);
+    if (ret == kIOReturnSuccess) {
+            *(int *)context = len;
+    } else {
+            // timeout if not success?
+            *(int *)context = 0;
+    }
+    CFRunLoopStop(CFRunLoopGetCurrent());
+}
+#endif
diff --git a/ground/openpilotgcs/src/plugins/rawhid/usbmonitor_mac.cpp b/ground/openpilotgcs/src/plugins/rawhid/usbmonitor_mac.cpp
index 51fd6cce7..2f04b4b37 100644
--- a/ground/openpilotgcs/src/plugins/rawhid/usbmonitor_mac.cpp
+++ b/ground/openpilotgcs/src/plugins/rawhid/usbmonitor_mac.cpp
@@ -45,8 +45,6 @@ static bool HID_GetStrProperty(IOHIDDeviceRef dev, CFStringRef property, QString
   */
 USBMonitor::USBMonitor(QObject *parent): QThread(parent) {
     hid_manager=NULL;
-    CFMutableDictionaryRef dict;
-    CFNumberRef num;
     IOReturn ret;
 
     m_instance = this;
@@ -117,6 +115,10 @@ void USBMonitor::removeDevice(IOHIDDeviceRef dev) {
   */
 void USBMonitor::detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 {
+    Q_UNUSED(context);
+    Q_UNUSED(r);
+    Q_UNUSED(hid_mgr);
+
     qDebug() << "USBMonitor: Device detached event";
     instance()->removeDevice(dev);
 }
@@ -129,9 +131,12 @@ void USBMonitor::addDevice(USBPortInfo info) {
 
 void USBMonitor::attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
 {
+    Q_UNUSED(context);
+    Q_UNUSED(r);
+    Q_UNUSED(hid_mgr);
+
     bool got_properties = true;
 
-    CFTypeRef prop;
     USBPortInfo deviceInfo;
 
     deviceInfo.dev_handle = dev;
diff --git a/ground/openpilotgcs/src/plugins/serialconnection/serialpluginconfiguration.cpp b/ground/openpilotgcs/src/plugins/serialconnection/serialpluginconfiguration.cpp
index 789085596..75510f52c 100644
--- a/ground/openpilotgcs/src/plugins/serialconnection/serialpluginconfiguration.cpp
+++ b/ground/openpilotgcs/src/plugins/serialconnection/serialpluginconfiguration.cpp
@@ -38,6 +38,8 @@ SerialPluginConfiguration::SerialPluginConfiguration(QString classId, QSettings*
     IUAVGadgetConfiguration(classId, parent),
     m_speed("57600")
 {
+    Q_UNUSED(qSettings);
+
     settings = Core::ICore::instance()->settings();
 }
 
diff --git a/ground/openpilotgcs/src/plugins/uavobjectutil/uavobjectutilmanager.cpp b/ground/openpilotgcs/src/plugins/uavobjectutil/uavobjectutilmanager.cpp
index be81befb7..1c69c63e9 100644
--- a/ground/openpilotgcs/src/plugins/uavobjectutil/uavobjectutilmanager.cpp
+++ b/ground/openpilotgcs/src/plugins/uavobjectutil/uavobjectutilmanager.cpp
@@ -268,7 +268,7 @@ QByteArray UAVObjectUtilManager::getBoardCPUSerial()
     QByteArray cpuSerial;
     FirmwareIAPObj::DataFields firmwareIapData = getFirmwareIap();
 
-    for (int i = 0; i < FirmwareIAPObj::CPUSERIAL_NUMELEM; i++)
+    for (unsigned int i = 0; i < FirmwareIAPObj::CPUSERIAL_NUMELEM; i++)
         cpuSerial.append(firmwareIapData.CPUSerial[i]);
 
     return cpuSerial;
@@ -288,7 +288,7 @@ QByteArray UAVObjectUtilManager::getBoardDescription()
     QByteArray ret;
     FirmwareIAPObj::DataFields firmwareIapData = getFirmwareIap();
 
-    for (int i = 0; i < FirmwareIAPObj::DESCRIPTION_NUMELEM; i++)
+    for (unsigned int i = 0; i < FirmwareIAPObj::DESCRIPTION_NUMELEM; i++)
         ret.append(firmwareIapData.Description[i]);
 
     return ret;
diff --git a/ground/openpilotgcs/src/plugins/uavobjectwidgetutils/configtaskwidget.cpp b/ground/openpilotgcs/src/plugins/uavobjectwidgetutils/configtaskwidget.cpp
index 5d3264d16..ddad8c88a 100644
--- a/ground/openpilotgcs/src/plugins/uavobjectwidgetutils/configtaskwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/uavobjectwidgetutils/configtaskwidget.cpp
@@ -32,7 +32,7 @@
 /**
  * Constructor
  */
-ConfigTaskWidget::ConfigTaskWidget(QWidget *parent) : QWidget(parent),isConnected(false),smartsave(NULL),dirty(false),outOfLimitsStyle("background-color: rgb(255, 0, 0);"),timeOut(NULL),allowWidgetUpdates(true)
+ConfigTaskWidget::ConfigTaskWidget(QWidget *parent) : QWidget(parent),isConnected(false),allowWidgetUpdates(true),smartsave(NULL),dirty(false),outOfLimitsStyle("background-color: rgb(255, 0, 0);"),timeOut(NULL)
 {
     pm = ExtensionSystem::PluginManager::instance();
     objManager = pm->getObject<UAVObjectManager>();
diff --git a/ground/openpilotgcs/src/plugins/uavtalk/uavtalk.cpp b/ground/openpilotgcs/src/plugins/uavtalk/uavtalk.cpp
index 5bb4d1939..da98bee98 100644
--- a/ground/openpilotgcs/src/plugins/uavtalk/uavtalk.cpp
+++ b/ground/openpilotgcs/src/plugins/uavtalk/uavtalk.cpp
@@ -495,7 +495,7 @@ bool UAVTalk::processInputByte(quint8 rxbyte)
         default:
             rxState = STATE_SYNC;
             stats.rxErrors++;
-            UAVTALK_QXTLOG_DEBUG("UAVTalk: ???->Sync");
+            UAVTALK_QXTLOG_DEBUG("UAVTalk: \?\?\?->Sync"); //Use the escape character for '?' so that the tripgraph isn't triggered.
     }
 
     // Done
diff --git a/ground/openpilotgcs/src/plugins/uploader/SSP/port.h b/ground/openpilotgcs/src/plugins/uploader/SSP/port.h
index ff4725b99..1521ab412 100644
--- a/ground/openpilotgcs/src/plugins/uploader/SSP/port.h
+++ b/ground/openpilotgcs/src/plugins/uploader/SSP/port.h
@@ -43,7 +43,7 @@ public:
     uint8_t 	maxRetryCount;					// max. times to try to transmit the 'send' packet
     uint16_t 	max_retry;                             	// Maximum number of retrys for a single transmit.
     int32_t 	timeoutLen;						// how long to wait for each retry to succeed
-    int32_t		timeout;						// current timeout. when 'time' reaches this point we have timed out
+    uint32_t		timeout;						// current timeout. when 'time' reaches this point we have timed out
     uint8_t 	txSeqNo; 						// current 'send' packet sequence number
     uint16_t 	rxBufPos;						//  current buffer position in the receive packet
     uint16_t	rxBufLen;						// number of 'data' bytes in the buffer
diff --git a/ground/openpilotgcs/src/plugins/uploader/SSP/qssp.cpp b/ground/openpilotgcs/src/plugins/uploader/SSP/qssp.cpp
index 356cb3604..b5eb5b1b7 100644
--- a/ground/openpilotgcs/src/plugins/uploader/SSP/qssp.cpp
+++ b/ground/openpilotgcs/src/plugins/uploader/SSP/qssp.cpp
@@ -802,6 +802,8 @@ qssp::qssp(port * info,bool debug):debug(debug)
 }
 void qssp::pfCallBack( uint8_t * buf, uint16_t size)
 {
+    Q_UNUSED(size);
+
      if (debug)
          qDebug()<<"receive callback"<<buf[0]<<buf[1]<<buf[2]<<buf[3]<<buf[4];
 }
diff --git a/ground/openpilotgcs/src/plugins/uploader/uploadergadgetoptionspage.cpp b/ground/openpilotgcs/src/plugins/uploader/uploadergadgetoptionspage.cpp
index 98dd118ae..d8eb426c0 100755
--- a/ground/openpilotgcs/src/plugins/uploader/uploadergadgetoptionspage.cpp
+++ b/ground/openpilotgcs/src/plugins/uploader/uploadergadgetoptionspage.cpp
@@ -47,6 +47,8 @@ UploaderGadgetOptionsPage::UploaderGadgetOptionsPage(UploaderGadgetConfiguration
 //creates options page widget
 QWidget *UploaderGadgetOptionsPage::createPage(QWidget *parent)
 {
+    Q_UNUSED(parent);
+
     //main widget
     QWidget *widget = new QWidget;