From c030775c843f99809eb81416cc30dc5f29d8b0ad Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Tue, 3 Jun 2014 02:16:36 +0300
Subject: [PATCH] Revert "Remove obsolete MSVC check from pragma guard"

This reverts commit f6c1ebece04f5804e423976729e6027dfc563f24.
---
 include/boost/throw_exception.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/throw_exception.hpp b/include/boost/throw_exception.hpp
index 5579a2d..200683e 100644
--- a/include/boost/throw_exception.hpp
+++ b/include/boost/throw_exception.hpp
@@ -9,7 +9,7 @@
 
 // MS compatible compilers support #pragma once
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
 # pragma once
 #endif