Index: win_tss_ptr.ipp
===================================================================
--- win_tss_ptr.ipp	(revision 86338)
+++ win_tss_ptr.ipp	(working copy)
@@ -34,7 +34,7 @@
 #if defined(UNDER_CE)
   enum { out_of_indexes = 0xFFFFFFFF };
 #else
-  enum { out_of_indexes = TLS_OUT_OF_INDEXES };
+  enum { out_of_indexes = static_cast<int>(TLS_OUT_OF_INDEXES) };
 #endif
 
   DWORD tss_key = ::TlsAlloc();