From fe664b5d1d4c00021197adf504c5f8de81f7cf5a Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 7 Feb 2013 15:04:06 -0500
Subject: MSVC: Fix CMAKE_CL_64 in CXX-only projects (#13896)

When CXX is enabled without C then MSVC_CXX_ARCHITECTURE_ID is set
instead but not MSVC_C_ARCHITECTURE_ID.  Test both.
---
 Modules/Platform/Windows-MSVC.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/Platform/Windows-MSVC.cmake b/Modules/Platform/Windows-MSVC.cmake
index 3a38d8f..f9df6d8 100644
--- a/Modules/Platform/Windows-MSVC.cmake
+++ b/Modules/Platform/Windows-MSVC.cmake
@@ -107,7 +107,7 @@ if(NOT MSVC_VERSION)
   endif()
 endif()
 
-if(MSVC_C_ARCHITECTURE_ID MATCHES 64)
+if(MSVC_C_ARCHITECTURE_ID MATCHES 64 OR MSVC_CXX_ARCHITECTURE_ID MATCHES 64)
   set(CMAKE_CL_64 1)
 else()
   set(CMAKE_CL_64 0)
-- 
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