style fixup

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@749 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/Thread.cpp

@@ -347,15 +347,14 @@ void Event::Wait()
 
 int InterlockedExchangeAdd(int *Addend, int Increment)
 {
-
 #if defined(__GNUC__) && defined (__GNUC_MINOR__) && ((4 < __GNUC__) || (4 == __GNUC__ && 1 <= __GNUC_MINOR__))
   return  __sync_add_and_fetch(Addend, Increment);
 #else
+#error Sorry - GCC versions that don't support __sync_add_and_fetch are not supported.
   // TODO support old gcc
 #endif
 }
 
 #endif
 
-
 } // end of namespace Common

Source/Core/Common/Src/Thread.h

@@ -114,7 +114,10 @@ void SleepCurrentThread(int ms);
 
 void SetCurrentThreadName(const char *name);
 
+#ifndef _WIN32
 int InterlockedExchangeAdd(int *Addend, int Increment);
+#endif
+
 } // end of namespace Common