WinSDK samples: Workaround warnings for Clang on Windows.

Samples/multimedia/directshow/baseclasses/wxutil.cpp

 //------------------------------------------------------------------------------
 // File: WXUtil.cpp
 //
 // Desc: DirectShow base classes - implements helper classes for building
 //       multimedia filters.
 //
 // Copyright (c) 1992-2001 Microsoft Corporation.  All rights reserved.
 //------------------------------------------------------------------------------
 
 
@@ skipping 363 matching lines @@
 
 
 #define MEMORY_ALIGNMENT        4
 #define MEMORY_ALIGNMENT_LOG2   2
 #define MEMORY_ALIGNMENT_MASK   MEMORY_ALIGNMENT - 1
 
 void * __stdcall memmoveInternal(void * dst, const void * src, size_t count)
 {
     void * ret = dst;
 
-#ifdef _X86_
+#if defined(_X86_) && !defined(__clang__)
     if (dst <= src || (char *)dst >= ((char *)src + count)) {
 
         /*
          * Non-Overlapping Buffers
          * copy from lower addresses to higher addresses
          */
         _asm {
             mov     esi,src
             mov     edi,dst
             mov     ecx,count
@@ skipping 365 matching lines @@
         if( (osverinfo.dwMajorVersion > 5) || 
             ( (osverinfo.dwMajorVersion == 5) && (osverinfo.dwMinorVersion >= 1) ) ) {
             return true;
         }
     }
 
     return false;
 }