Silence random warnings

None of these seem to point to actual issues, so let's quiet them.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

core/parse-xml.c

@@ -3359,6 +3359,7 @@ extern int divinglog_profile(void *handle, int columns, char **data, char **colu
 			int ppo2_2 = atoi_n(ptr5 + 3, 3);
 			int ppo2_3 = atoi_n(ptr5 + 6, 3);
 			int otu = atoi_n(ptr5 + 9, 4);
+			(void) otu; // we seem to not store this? Do we understand its format?
 			int cns = atoi_n(ptr5 + 13, 4);
 			int setpoint = atoi_n(ptr5 + 17, 2);
 

core/qtserialbluetooth.cpp

@@ -181,14 +181,14 @@ static dc_status_t ble_serial_write(dc_custom_io_t *io, const void* data, size_t
 	while (size) {
 		size_t len = sizeof(buffer.out) - transferred;
 
-		if (len > io->packet_size)
+		if ((int)len > io->packet_size)
 			len = io->packet_size;
 		if (len > size)
 			len = size;
 		memcpy(buffer.out + buffer.out_bytes, data, len);
 		buffer.out_bytes += len;
 
-		if (buffer.out_bytes <= io->packet_size || buffer.out_bytes == size) {
+		if ((int)buffer.out_bytes <= io->packet_size || buffer.out_bytes == size) {
 			rc = ble_serial_flush_write();
 			if (rc != DC_STATUS_SUCCESS)
 				break;

desktop-widgets/tab-widgets/maintab.ui

@@ -510,7 +510,7 @@
          <property name="widgetResizable">
           <bool>true</bool>
          </property>
-         <widget class="QWidget" name="scrollAreaWidgetContents">
+         <widget class="QWidget" name="scrollAreaWidgetContents2">
           <property name="geometry">
            <rect>
             <x>0</x>

profile-widget/tankitem.cpp

@@ -110,7 +110,7 @@ void TankItem::modelDataChanged(const QModelIndex &topLeft, const QModelIndex &b
 
 	// work through all the gas changes and add the rectangle for each gas while it was used
 	struct event *ev = get_next_event(dc->events, "gaschange");
-	while (ev && ev->time.seconds < last_entry->sec) {
+	while (ev && (int)ev->time.seconds < last_entry->sec) {
 		width = hAxis->posAtValue(ev->time.seconds) - hAxis->posAtValue(startTime);
 		left = hAxis->posAtValue(startTime);
 		createBar(left, width, gasmix);

qt-models/cylindermodel.cpp

@@ -135,11 +135,10 @@ QVariant CylindersModel::data(const QModelIndex &index, int role) const
 
 	if (!index.isValid() || index.row() >= MAX_CYLINDERS)
 		return ret;
-	
-	int mapping[MAX_CYLINDERS];
+
 	int same_gas = -1;
 	cylinder_t *cyl = &displayed_dive.cylinder[index.row()];
-	
+
 	switch (role) {
 	case Qt::BackgroundRole: {
 		switch (index.column()) {

qt-models/diveplannermodel.cpp

@@ -988,6 +988,8 @@ int DivePlannerPointsModel::analyzeVariations(struct decostop *min, struct decos
 			       (mid->time + 1)/60,
 			       (left + right) / 2, unit,
 			       (right - left) / 2, unit);
+#else
+		(void) unit;
 #endif
 		++min;
 		++mid;