Updated the SDK with the latest code from the TF and HL2 branches.

sp/src/utils/lzma/C/7zip/Compress/Branch/PPC.cpp

@@ -0,0 +1,17 @@
+// PPC.cpp
+
+#include "StdAfx.h"
+#include "PPC.h"
+
+#include "Windows/Defs.h"
+#include "BranchPPC.c"
+
+UInt32 CBC_PPC_B_Encoder::SubFilter(Byte *data, UInt32 size)
+{
+  return ::PPC_B_Convert(data, size, _bufferPos, 1);
+}
+
+UInt32 CBC_PPC_B_Decoder::SubFilter(Byte *data, UInt32 size)
+{
+  return ::PPC_B_Convert(data, size, _bufferPos, 0);
+}