- Removed -Wconversion from compiler options for g++ 4.3, it's behavior has fundamently changed in g++ 4.3

- Added -Wno-empty-body and -Wno-parentheses as compiler flags for g++ 4.3 for *now* (we should think of removing -Wparentheses though)
- Fixed some warnings for g++ 4.3 (only for the engines I'm using)

svn-id: r32540

11 files changed, 34 insertions, 28 deletions

diff --git a/Makefile b/Makefile
index d230120bb0..506265032a 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ CXXFLAGS:= -Wall $(CXXFLAGS)
 # Turn off some annoying and not-so-useful warnings
 CXXFLAGS+= -Wno-long-long -Wno-multichar -Wno-unknown-pragmas -Wno-reorder
 # Enable even more warnings...
-CXXFLAGS+= -pedantic -Wpointer-arith -Wcast-qual -Wcast-align -Wconversion
+CXXFLAGS+= -pedantic -Wpointer-arith -Wcast-qual -Wcast-align
 CXXFLAGS+= -Wshadow -Wimplicit -Wundef -Wnon-virtual-dtor -Wwrite-strings
 
 # Disable RTTI and exceptions, and enabled checking of pointers returned by "new"
diff --git a/backends/platform/sdl/events.cpp b/backends/platform/sdl/events.cpp
index 9a0a33f45c..a4a72ca380 100644
--- a/backends/platform/sdl/events.cpp
+++ b/backends/platform/sdl/events.cpp
@@ -148,7 +148,7 @@ void OSystem_SDL::handleKbdMouse() {
 				_km.y_down_count = 1;
 			}
 
-			SDL_WarpMouse(_km.x, _km.y);
+			SDL_WarpMouse((Uint16)_km.x, (Uint16)_km.y);
 		}
 	}
 }
diff --git a/backends/platform/sdl/sdl.cpp b/backends/platform/sdl/sdl.cpp
index b750864ad8..be3aaad926 100644
--- a/backends/platform/sdl/sdl.cpp
+++ b/backends/platform/sdl/sdl.cpp
@@ -406,7 +406,7 @@ bool OSystem_SDL::setSoundCallback(SoundProc proc, void *param) {
 	// about 1/32th of a second. Note that it must be a power of two.
 	// So e.g. at 22050 Hz, we request a sample buffer size of 2048.
 	int samples = 8192;
-	while (32 * samples >= _samplesPerSec) {
+	while (16 * samples >= _samplesPerSec) {
 		samples >>= 1;
 	}
 
diff --git a/common/rect.h b/common/rect.h
index d88f400039..f71124434a 100644
--- a/common/rect.h
+++ b/common/rect.h
@@ -61,7 +61,7 @@ struct Point {
 		if (diffy >= 0x1000)
 			return 0xFFFFFF;
 
-		return diffx*diffx + diffy*diffy;
+		return uint(diffx*diffx + diffy*diffy);
 	}
 };
 
diff --git a/configure b/configure
index 960ed4063f..f91819b7f1 100755
--- a/configure
+++ b/configure
@@ -943,6 +943,12 @@ if test "$_cxx_major" -ge "3" ; then
 	add_line_to_config_mk 'HAVE_GCC3 = 1'
 fi;
 
+if test "$_cxx_major" -ge "4" && test "$_cxx_minor" -ge "3" ; then
+	CXXFLAGS="$CXXFLAGS -Wno-parentheses -Wno-empty-body"
+else
+	CXXFLAGS="$CXXFLAGS -Wconversion"
+fi;
+
 add_to_config_mk_if_no $_build_hq_scalers   'DISABLE_HQ_SCALERS = 1'
 add_to_config_mk_if_no $_build_scalers      'DISABLE_SCALERS = 1'
 
diff --git a/engines/saga/detection.cpp b/engines/saga/detection.cpp
index 7fd1024405..9c897d8ebc 100644
--- a/engines/saga/detection.cpp
+++ b/engines/saga/detection.cpp
@@ -54,8 +54,8 @@ struct SAGAGameDescription {
 	const GamePatchDescription *patchDescriptions;
 };
 
-const bool SagaEngine::isBigEndian() const { return (_gameDescription->features & GF_BIG_ENDIAN_DATA) != 0; }
-const bool SagaEngine::isMacResources() const { return (getPlatform() == Common::kPlatformMacintosh); }
+bool SagaEngine::isBigEndian() const { return (_gameDescription->features & GF_BIG_ENDIAN_DATA) != 0; }
+bool SagaEngine::isMacResources() const { return (getPlatform() == Common::kPlatformMacintosh); }
 const GameResourceDescription *SagaEngine::getResourceDescription() { return _gameDescription->resourceDescription; }
 const GameSoundInfo *SagaEngine::getVoiceInfo() const { return _gameDescription->voiceInfo; }
 const GameSoundInfo *SagaEngine::getSfxInfo() const { return _gameDescription->sfxInfo; }
diff --git a/engines/saga/saga.h b/engines/saga/saga.h
index 4fd789cb4e..4a5fae7ddb 100644
--- a/engines/saga/saga.h
+++ b/engines/saga/saga.h
@@ -580,15 +580,15 @@ public:
 		_mouseClickCount = 0;
 	}
 
-	const bool leftMouseButtonPressed() const {
+	bool leftMouseButtonPressed() const {
 		return _leftMouseButtonPressed;
 	}
 
-	const bool rightMouseButtonPressed() const {
+	bool rightMouseButtonPressed() const {
 		return _rightMouseButtonPressed;
 	}
 
-	const bool mouseButtonPressed() const {
+	bool mouseButtonPressed() const {
 		return _leftMouseButtonPressed || _rightMouseButtonPressed;
 	}
 
@@ -622,8 +622,8 @@ public:
 public:
 	bool initGame(void);
 
-	const bool isBigEndian() const;
-	const bool isMacResources() const;
+	bool isBigEndian() const;
+	bool isMacResources() const;
 	const GameResourceDescription *getResourceDescription();
 	const GameSoundInfo *getVoiceInfo() const;
 	const GameSoundInfo *getSfxInfo() const;
diff --git a/engines/sword2/header.h b/engines/sword2/header.h
index 5100e43de1..8cd8c900f8 100644
--- a/engines/sword2/header.h
+++ b/engines/sword2/header.h
@@ -56,7 +56,7 @@ struct ResHeader {
 					// compressed)
 	byte name[NAME_LEN];		// Name of object
 
-	static const int size() {
+	static int size() {
 		return 44;
 	}
 
@@ -152,7 +152,7 @@ struct AnimHeader {
 	uint8 feetEndDir;	// Direction to start in after running anim
 	uint16 blend;
 
-	static const int size() {
+	static int size() {
 		return 15;
 	}
 
@@ -209,7 +209,7 @@ struct CdtEntry {
 	uint8 frameType;	// 0 = print sprite normally with top-left
 				// corner at (x,y), otherwise see below...
 
-	static const int size() {
+	static int size() {
 		return 9;
 	}
 
@@ -250,7 +250,7 @@ struct FrameHeader {
 	uint16 width;		// Dimensions of frame
 	uint16 height;
 
-	static const int size() {
+	static int size() {
 		return 8;
 	}
 
@@ -299,7 +299,7 @@ struct MultiScreenHeader {
 	uint32 paletteTable;
 	uint32 maskOffset;
 
-	static const int size() {
+	static int size() {
 		return 36;
 	}
 
@@ -339,7 +339,7 @@ struct ScreenHeader {
 	uint16 height;
 	uint16 noLayers;	// number of layer areas
 
-	static const int size() {
+	static int size() {
 		return 6;
 	}
 
@@ -374,7 +374,7 @@ struct LayerHeader {
 	uint32 offset;		// where to find mask data (from start of
 				// standard file header)
 
-	static const int size() {
+	static int size() {
 		return 16;
 	}
 
@@ -436,7 +436,7 @@ public:
 		_addr = NULL;
 	}
 
-	static const int size() {
+	static int size() {
 		return 44;
 	}
 
@@ -479,7 +479,7 @@ struct TextHeader {
 	uint32 noOfLines;	// how many lines of text are there in this
 				// module
 
-	static const int size() {
+	static int size() {
 		return 4;
 	}
 
diff --git a/engines/sword2/object.h b/engines/sword2/object.h
index 57f020eb63..b6b6ca5174 100644
--- a/engines/sword2/object.h
+++ b/engines/sword2/object.h
@@ -48,7 +48,7 @@ struct ObjectMouse {
 	int32 priority;
 	int32 pointer;			// type (or resource id?) of pointer used over this area
 
-	static const int size() {
+	static int size() {
 		return 24;
 	}
 
@@ -91,7 +91,7 @@ public:
 		_addr = addr;
 	}
 
-	static const int size() {
+	static int size() {
 		return 8;
 	}
 
@@ -139,7 +139,7 @@ public:
 		_addr = addr;
 	}
 
-	static const int size() {
+	static int size() {
 		return 12;
 	}
 
@@ -178,7 +178,7 @@ public:
 		_addr = addr;
 	}
 
-	static const int size() {
+	static int size() {
 		return 36;
 	}
 
@@ -240,7 +240,7 @@ public:
 		_addr = addr;
 	}
 
-	static const int size() {
+	static int size() {
 		return 56;
 	}
 
@@ -291,7 +291,7 @@ struct ObjectWalkdata {
 	int32 dx[8 * (12 + 1)];		// walk step distances in x direction
 	int32 dy[8 * (12 + 1)];		// walk step distances in y direction
 
-	static const int size() {
+	static int size() {
 		return 916;
 	}
 
diff --git a/engines/sword2/screen.h b/engines/sword2/screen.h
index 93cc5e40ce..6defe51fdc 100644
--- a/engines/sword2/screen.h
+++ b/engines/sword2/screen.h
@@ -187,7 +187,7 @@ struct Parallax {
 	// The dimensions are followed by an offset table, but we don't know in
 	// advance how big it is. See initializeBackgroundLayer().
 
-	static const int size() {
+	static int size() {
 		return 4;
 	}
 
diff --git a/gui/eval.cpp b/gui/eval.cpp
index a2aec6d0d3..716006c108 100644
--- a/gui/eval.cpp
+++ b/gui/eval.cpp
@@ -102,7 +102,7 @@ void Eval::level4(int *result) {
 	char op;
 
 	op = 0;
-	if ((_tokenType == tDelimiter) && *_token == '+' || *_token == '-') {
+	if ((_tokenType == tDelimiter) && (*_token == '+' || *_token == '-')) {
 		op = *_token;
 		getToken();
 	}