Ensure std::unordered_ be used on MSVC 2010 too (#4600)

diff --git a/src/util/cpp11_container.h b/src/util/cpp11_container.h
index 7ac2fc371907de6c064e95517ef3d8e4f9f9756c..88317c9c4b00c6038ecfda2a7025983b6cb3f186 100644 (file)
--- a/src/util/cpp11_container.h
+++ b/src/util/cpp11_container.h
@@ -24,7 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define USE_UNORDERED_CONTAINERS
 #endif
 
-#if _MSC_VER >= 1800
+#if _MSC_VER >= 1600
 #define USE_UNORDERED_CONTAINERS
 #endif