[SDL] SDL-1.2.10 Win32 Build error: mmintrin.h

[Alex Volkov]

Ken Rogoway wrote: 
> When you say the "platform SDK" what are you talking about? 
> I have DX9 SDK installed.  I am willing to install the Platform SDK,
> but am not familiar with it by that name.

It is Microsoft's Platform SDK --  http://msdn.microsoft.com/platformsdk/.
This SDK includes nearly all updated SDKs (without duplication of files) MS
releases, but not the DDKs. It is rather large (~400M), but comes with all
updated headers, libs, and even free 64-bit compilers.

-Alex.