Suppress compiler warnings

src/dataqsdk.w

 	int rstart = finalizedPort.indexOf("COM");
 	finalizedPort.remove(0, rstart + 3);
 	bool chopFinished = false;
-	int finalizedPortNumber;
+	int finalizedPortNumber = 0;
 	while(finalizedPort.size() > 0 && !chopFinished)
 	{
 		finalizedPortNumber = finalizedPort.toInt(&chopFinished);
 @<DATAQ SDK device settings@>=
 bool autoSelect;
 QString deviceID;
-int channelOfInterest;
+unsigned int channelOfInterest;
 
 @ This information is accessed through the reference element associated with
 the parent node of the current configuration and from the row number of the
 	resetButton->setEnabled(true);
 	calibrationDevice = new DataqSdkDevice(deviceID);
 	Channel *channel;
-	for(int i = 0; i <= channelOfInterest; i++)
+	for(unsigned int i = 0; i <= channelOfInterest; i++)
 	{
 		channel = calibrationDevice->newChannel(Units::Unitless);
 	}

src/units.w

 @ The implementation of these functions is trivial.
 
 @<Functions for scripting@>=
-QScriptValue Units_convertTemperature(QScriptContext *context, QScriptEngine *engine)
+QScriptValue Units_convertTemperature(QScriptContext *context, QScriptEngine *)
 {
 	return QScriptValue(Units::convertTemperature(argument<double>(0, context),
 	                                              argument<Units::Unit>(1, context),
 }
 
 QScriptValue Units_convertRelativeTemperature(QScriptContext *context,
-                                              QScriptEngine *engine)
+                                              QScriptEngine *)
 {
 	return QScriptValue(Units::convertRelativeTemperature(
 	                         argument<double>(0, context),
 	                         argument<Units::Unit>(2, context)));
 }
 
-QScriptValue Units_isTemperatureUnit(QScriptContext *context, QScriptEngine *engine)
+QScriptValue Units_isTemperatureUnit(QScriptContext *context, QScriptEngine *)
 {
 	return QScriptValue(Units::isTemperatureUnit(argument<Units::Unit>(0, context)));
 }
 
-QScriptValue Units_convertWeight(QScriptContext *context, QScriptEngine *engine)
+QScriptValue Units_convertWeight(QScriptContext *context, QScriptEngine *)
 {
 	return QScriptValue(Units::convertWeight(argument<double>(0, context),
 	                                         argument<Units::Unit>(1, context),
 	                                         argument<Units::Unit>(2, context)));
 }
 
-QScriptValue Units_isWeightUnit(QScriptContext *context, QScriptEngine *engine)
+QScriptValue Units_isWeightUnit(QScriptContext *context, QScriptEngine *)
 {
 	return QScriptValue(Units::isWeightUnit(argument<Units::Unit>(0, context)));
 }

src/valueannotation.w

 @ The implementation of the functions also proceeds as usual.
 
 @<Functions for scripting@>=
-QScriptValue constructValueAnnotation(QScriptContext *context, QScriptEngine *engine)
+QScriptValue constructValueAnnotation(QScriptContext *, QScriptEngine *engine)
 {
 	QScriptValue object = engine->newQObject(new ValueAnnotation);
 	setValueAnnotationProperties(object, engine);