Fixed a few more warnings, and marked some code for later research.

src/common/SoundSDL2.cxx

@@ -62,7 +62,7 @@ SoundSDL2::SoundSDL2(OSystem& osystem, AudioSettings& audioSettings)
   desired.freq   = myAudioSettings.sampleRate();
   desired.format = AUDIO_F32SYS;
   desired.channels = 2;
-  desired.samples  = myAudioSettings.fragmentSize();
+  desired.samples  = static_cast<Uint16>(myAudioSettings.fragmentSize());
   desired.callback = callback;
   desired.userdata = static_cast<void*>(this);
 

src/common/audio/LanczosResampler.cxx

@@ -49,7 +49,7 @@ namespace {
     );
   }
 
-  double lanczosKernel(float x, uInt32 a) {
+  float lanczosKernel(float x, uInt32 a) {
     return sinc(x) * sinc(x / static_cast<float>(a));
   }
 

src/debugger/gui/Cart3EWidget.cxx

@@ -119,7 +119,7 @@ void Cartridge3EWidget::loadConfig()
 void Cartridge3EWidget::handleCommand(CommandSender* sender,
                                       int cmd, int data, int id)
 {
-  int bank = -1;
+  uInt16 bank = 0;
 
   if(cmd == kROMBankChanged)
   {

src/debugger/gui/PromptWidget.cxx

@@ -715,7 +715,7 @@ void PromptWidget::historyScroll(int direction)
   {
     int i;
     for (i = 0; i < _promptEndPos - _promptStartPos; i++)
-      _history[_historyIndex][i] = buffer(_promptStartPos + i);
+      _history[_historyIndex][i] = buffer(_promptStartPos + i); //FIXME: int to char??
 
     _history[_historyIndex][i] = '\0';
   }
@@ -879,7 +879,7 @@ void PromptWidget::drawCaret()
   int x = _x + 1 + (_currentPos % _lineWidth) * _kConsoleCharWidth;
   int y = _y + displayLine * _kConsoleLineHeight;
 
-  char c = buffer(_currentPos);
+  char c = buffer(_currentPos); //FIXME: int to char??
   s.fillRect(x, y, _kConsoleCharWidth, _kConsoleLineHeight, onTop ? kTextColor : kColor);
   s.drawChar(_font, c, x, y + 2, kBGColor);
 }

src/emucore/tia/DelayQueueMember.hxx

@@ -114,7 +114,7 @@ bool DelayQueueMember<capacity>::save(Serializer& out) const
 {
   try
   {
-    out.putInt(mySize);
+    out.putInt(mySize); //FIXME - check datatype
     for(uInt8 i = 0; i < mySize; ++i)
     {
       const Entry& e = myEntries[i];
@@ -137,7 +137,7 @@ bool DelayQueueMember<capacity>::load(Serializer& in)
 {
   try
   {
-    mySize = in.getInt();
+    mySize = in.getInt(); //FIXME - check datatype
     if (mySize > capacity) throw new runtime_error("invalid delay queue size");
     for(uInt32 i = 0; i < mySize; ++i)
     {