From 3ef7143dbea4cf49c5629030d76c0766276562fd Mon Sep 17 00:00:00 2001
From: John Darrington <address@hidden>
Date: Tue, 19 Jun 2012 18:26:55 +0200
Subject: [PATCH] supports_delete_on_close: Initialise OSVIERSIONINFO struct per documentation

The microsoft documentation says that dwOSVersionInfoSize must be initialised
with the size of the struct.  This was not being done, so the call
to GetVersionEx was failing.
---
 gl/clean-temp.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/gl/clean-temp.c b/gl/clean-temp.c
index b05550a..362acff 100644
--- a/gl/clean-temp.c
+++ b/gl/clean-temp.c
@@ -583,6 +583,10 @@ supports_delete_on_close ()
     {
       OSVERSIONINFO v;
 
+      /* according to http://msdn.microsoft.com/en-us/library/windows/desktop/ms724451%28v=vs.85%29.aspx 
+	 this structure must be initialised as follows:   */
+      v.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
+
       if (GetVersionEx (&v))
         known = (v.dwPlatformId == VER_PLATFORM_WIN32_NT ? 1 : -1);
       else
-- 
1.7.2.5