more fixes to compiling with gcc 4.6

src/framework/const.h

@@ -45,7 +45,7 @@
 #if defined(__amd64) || defined(_M_X64)
 #define BUILD_ARCH "x64"
 #elif defined(__i386) || defined(_M_IX86) || defined(_X86_)
-#define BUILD_ARCH "X86"
+#define BUILD_ARCH "x86"
 #else
 #define BUILD_ARCH "unknown"
 #endif

src/framework/sound/soundfile.h

@@ -33,8 +33,8 @@ public:
     virtual ~SoundFile() { }
     static SoundFilePtr loadSoundFile(const std::string& filename);
 
-    virtual int read(void *buffer, int bufferSize) = 0;
-    virtual void reset() = 0;
+    virtual int read(void *buffer, int bufferSize) { return -1; }
+    virtual void reset() { }
     bool eof() { return m_file->eof(); }
 
     ALenum getSampleFormat();

src/framework/ui/uilayout.h

@@ -55,7 +55,7 @@ public:
     virtual bool isUIGridLayout() { return false; }
 
 protected:
-    virtual bool internalUpdate() { }
+    virtual bool internalUpdate() { return false; }
 
     int m_updateDisabled;
     stdext::boolean<false> m_updating;