From 1c587723fa900fe6a608b5e56c6b6377bb2c40c5 Mon Sep 17 00:00:00 2001
From: seelabs <scott.determan@yahoo.com>
Date: Fri, 10 Apr 2015 17:19:36 -0400
Subject: [PATCH] Safer macro restoration using MSVC extensions

---
 src/beast/beast/nudb/win32_file.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/beast/beast/nudb/win32_file.h b/src/beast/beast/nudb/win32_file.h
index 467f9abf6..3d00850ca 100644
--- a/src/beast/beast/nudb/win32_file.h
+++ b/src/beast/beast/nudb/win32_file.h
@@ -33,6 +33,9 @@
 #endif
 
 #if BEAST_NUDB_WIN32_FILE
+#pragma push_macro("NOMINMAX")
+#pragma push_macro("UNICODE")
+#pragma push_macro("STRICT")
 # ifndef NOMINMAX
 #  define NOMINMAX
 # endif
@@ -46,9 +49,9 @@
 #  define WIN32_LEAN_AND_MEAN
 # endif
 # include <Windows.h>
-# undef NOMINMAX
-# undef UNICODE
-# undef STRICT
+#pragma pop_macro("STRICT")
+#pragma pop_macro("UNICODE")
+#pragma pop_macro("NOMINMAX")
 #endif
 
 namespace beast {