diff --git a/SConstruct b/SConstruct
index 6a26eaba74..73d5683168 100644
--- a/SConstruct
+++ b/SConstruct
@@ -121,7 +121,7 @@ if sys.platform == 'darwin':
     ccld += ['--sysroot=/Developer/SDKs/MacOSX10.5.sdk']
     system = '/System/Library/Frameworks'
     env['CCFLAGS'] += ccld
-    env['CCFLAGS'] += ['-msse3']
+    env['CCFLAGS'] += ['-Xarch_i386', '-msse3', '-Xarch_x86_64', '-mssse3']
     env['CCFLAGS'] += ['-iframework/Developer/SDKs/MacOSX10.5.sdk' + system]
     env['CCFLAGS'] += ['-iframework/Developer/SDKs/MacOSX10.6.sdk' + system]
     env['CC'] = "gcc-4.2 -ObjC"
diff --git a/Source/Core/VideoCommon/Src/BPFunctions.cpp b/Source/Core/VideoCommon/Src/BPFunctions.cpp
index 0c9db6f04f..ab30645ac3 100644
--- a/Source/Core/VideoCommon/Src/BPFunctions.cpp
+++ b/Source/Core/VideoCommon/Src/BPFunctions.cpp
@@ -136,6 +136,8 @@ void ClearScreen(const BPCmd &bp, const EFBRectangle &rc)
 
 void OnPixelFormatChange(const BPCmd &bp)
 {
+	int convtype = -1;
+
 	/*
 	 * When changing the EFB format, the pixel data won't get converted to the new format but stays the same.
 	 * Since we are always using an RGBA8 buffer though, this causes issues in some games.
@@ -145,14 +147,13 @@ void OnPixelFormatChange(const BPCmd &bp)
 		!g_ActiveConfig.backend_info.bSupportsFormatReinterpretation)
 		return;
 
-	int new_format = bpmem.zcontrol.pixel_format;
-	int old_format = Renderer::GetPrevPixelFormat();
+	unsigned int new_format = bpmem.zcontrol.pixel_format;
+	unsigned int old_format = Renderer::GetPrevPixelFormat();
 
 	// no need to reinterpret pixel data in these cases
 	if (new_format == old_format || old_format == (unsigned int)-1)
 		goto skip;
 
-	int convtype = -1;
 	switch (old_format)
 	{
 		case PIXELFMT_RGB8_Z24:
diff --git a/Source/Core/VideoCommon/Src/TextureCacheBase.cpp b/Source/Core/VideoCommon/Src/TextureCacheBase.cpp
index 551d87eb11..fffde7b7b2 100644
--- a/Source/Core/VideoCommon/Src/TextureCacheBase.cpp
+++ b/Source/Core/VideoCommon/Src/TextureCacheBase.cpp
@@ -677,4 +677,4 @@ void TextureCache::CopyRenderTargetToTexture(u32 address, bool bFromZBuffer,
 	entry->FromRenderTarget(bFromZBuffer, bScaleByHalf, cbufid, colmat, source_rect, bIsIntensityFmt, copyfmt);
 
 	g_renderer->RestoreAPIState();
-}
\ No newline at end of file
+}