From 7de8f67af3fce3df9aee2b2a1c703fcbf4df6625 Mon Sep 17 00:00:00 2001
From: KWSys Robot <kwrobot@kitware.com>
Date: Fri, 11 Sep 2015 11:20:29 -0400
Subject: [PATCH] KWSys 2015-09-11 (cfeb27cc)

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ cfeb27cc | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' dc3fdd7f..cfeb27cc
Gilles Khouzam (2):
      27714139 SystemTools: Call GetVersionEx more robustly
      cfeb27cc SystemTools: Report Windows 7, 8, 8.1 and 10 by name
---
 SystemTools.cxx | 68 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 51 insertions(+), 17 deletions(-)

diff --git a/SystemTools.cxx b/SystemTools.cxx
index 97a1df874..3857e415e 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -4879,11 +4879,8 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
   OSVERSIONINFOEXA osvi;
   BOOL bOsVersionInfoEx;
 
-  // Try calling GetVersionEx using the OSVERSIONINFOEX structure.
-  // If that fails, try using the OSVERSIONINFO structure.
-
-  ZeroMemory(&osvi, sizeof(OSVERSIONINFOEXA));
-  osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXA);
+  ZeroMemory(&osvi, sizeof(osvi));
+  osvi.dwOSVersionInfoSize = sizeof(osvi);
 
 #ifdef KWSYS_WINDOWS_DEPRECATED_GetVersionEx
 # pragma warning (push)
@@ -4893,14 +4890,10 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
 #  pragma warning (disable:4996)
 # endif
 #endif
-  bOsVersionInfoEx = GetVersionEx((OSVERSIONINFO *)&osvi);
+  bOsVersionInfoEx = GetVersionExA((OSVERSIONINFOA *)&osvi);
   if (!bOsVersionInfoEx)
     {
-    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
-    if (!GetVersionEx((OSVERSIONINFO *)&osvi))
-      {
-      return 0;
-      }
+    return 0;
     }
 #ifdef KWSYS_WINDOWS_DEPRECATED_GetVersionEx
 # pragma warning (pop)
@@ -4913,10 +4906,56 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
     case VER_PLATFORM_WIN32_NT:
 
       // Test for the specific product family.
+      if (osvi.dwMajorVersion == 10 && osvi.dwMinorVersion == 0)
+        {
+        if (osvi.wProductType == VER_NT_WORKSTATION)
+          {
+          res += "Microsoft Windows 10";
+          }
+        else
+          {
+          res += "Microsoft Windows Server 2016 family";
+          }
+        }
+
+      if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 3)
+        {
+        if (osvi.wProductType == VER_NT_WORKSTATION)
+          {
+          res += "Microsoft Windows 8.1";
+          }
+        else
+          {
+          res += "Microsoft Windows Server 2012 R2 family";
+          }
+        }
+
+      if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 2)
+        {
+        if (osvi.wProductType == VER_NT_WORKSTATION)
+          {
+          res += "Microsoft Windows 8";
+          }
+        else
+          {
+          res += "Microsoft Windows Server 2012 family";
+          }
+        }
+
+      if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1)
+        {
+        if (osvi.wProductType == VER_NT_WORKSTATION)
+          {
+          res += "Microsoft Windows 7";
+          }
+        else
+          {
+          res += "Microsoft Windows Server 2008 R2 family";
+          }
+        }
 
       if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
         {
-#if (_MSC_VER >= 1300)
         if (osvi.wProductType == VER_NT_WORKSTATION)
           {
           res += "Microsoft Windows Vista";
@@ -4925,9 +4964,6 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
           {
           res += "Microsoft Windows Server 2008 family";
           }
-#else
-        res += "Microsoft Windows Vista or Windows Server 2008";
-#endif
         }
 
       if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2)
@@ -4956,7 +4992,6 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
         {
         // Test for the workstation type.
 
-#if (_MSC_VER >= 1300)
         if (osvi.wProductType == VER_NT_WORKSTATION)
           {
           if (osvi.dwMajorVersion == 4)
@@ -5028,7 +5063,6 @@ std::string SystemTools::GetOperatingSystemNameAndVersion()
               }
             }
           }
-#endif // Visual Studio 7 and up
         }
 
       // Test for specific product on Windows NT 4.0 SP5 and earlier