From eb6f461fc1a383c19cc1be62663f682d1ac108ff Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 18 May 2011 10:09:23 -0400
Subject: [PATCH] VS 6: Define _WIN32_WINNT to load wincrypt.h correctly

---
 Source/cmSystemTools.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 4167355fb..1491a9950 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -9,6 +9,9 @@
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   See the License for more information.
 ============================================================================*/
+#if defined(_MSC_VER) && _MSC_VER < 1300
+# define _WIN32_WINNT 0x0400 /* for wincrypt.h */
+#endif
 #include "cmSystemTools.h"   
 #include <ctype.h>
 #include <errno.h>
@@ -2236,6 +2239,9 @@ bool cmSystemTools::FileTimeSet(const char* fname, cmSystemToolsFileTime* t)
 
 //----------------------------------------------------------------------------
 #ifdef _WIN32
+# ifndef CRYPT_SILENT
+#  define CRYPT_SILENT 0x40 /* Not defined by VS 6 version of header.  */
+# endif
 static int WinCryptRandom(void* data, size_t size)
 {
   int result = 0;