From e35bd0a3e01c6f6b9f4e3bd4045b2e556bc33ce1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C3=ABl=20Carr=C3=A9?= <funman@videolan.org>
Date: Tue, 22 Jan 2013 14:52:27 +0100
Subject: [PATCH] Allow overriding _WIN32_WINNT with environment variable

---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 40dcc710a7..bff1948468 100644
--- a/configure.ac
+++ b/configure.ac
@@ -205,7 +205,8 @@ case "${host_os}" in
   *mingw32* | *cygwin* | *wince* | *mingwce*)
     AC_CHECK_TOOL(WINDRES, windres, :)
     AC_CHECK_TOOL(OBJCOPY, objcopy, :)
-    AC_DEFINE([_WIN32_WINNT], 0x0502, [Define to '0x0502' for Windows XP SP2 APIs.])
+    test -z "$_WIN32_WINNT" && _WIN32_WINNT=0x0502
+    AC_DEFINE_UNQUOTED([_WIN32_WINNT], ${_WIN32_WINNT}, [Windows API level])
     AC_DEFINE([_WIN32_IE], 0x0600, [Define to '0x0600' for IE 6.0 (and shell) APIs.])
     AC_DEFINE([_UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])
     AC_DEFINE([UNICODE], [1], [Define to 1 for Unicode (Wide Chars) APIs.])