X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=9b7e538d95b2e61609d47b240e16241ca375d2f2;hp=a0a61600766d4e9873d7a55858d0652c5b787593;hb=dcd8ce70941e9b8d5180eb43865bb9819e424c19;hpb=2e0ec4ad6fe3eaf3c4194eb9da2b49bad5bf29b2

diff --git a/src/types.h b/src/types.h
index a0a61600..9b7e538d 100644
--- a/src/types.h
+++ b/src/types.h
@@ -2,6 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -58,7 +59,7 @@
 /// _WIN32             Building on Windows (any)
 /// _WIN64             Building on Windows 64 bit
 
-#if defined(_WIN64) && !defined(IS_64BIT) // Last condition means Makefile is not used
+#if defined(_WIN64) && defined(_MSC_VER) // No Makefile used
 #  include <intrin.h> // MSVC popcnt and bsfq instrinsics
 #  define IS_64BIT
 #  define USE_BSFQ