From c8a8873ad55669012e07fcf4da18427adff90381 Mon Sep 17 00:00:00 2001
From: Dave Abrahams <dave@boostpro.com>
Date: Sat, 24 Feb 2007 11:41:19 +0000
Subject: [PATCH] Some support for amd64; correct broken ia64 option

[SVN r37053]
---
 src/tools/msvc.jam | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/tools/msvc.jam b/src/tools/msvc.jam
index b7041f0e9..f256a2721 100644
--- a/src/tools/msvc.jam
+++ b/src/tools/msvc.jam
@@ -298,7 +298,13 @@ local rule configure-really (
                 if ! $(below-8.0)
                 {
                     cpu = i386 amd64 ia64 ;
-                    setup-option = x86 x86_amd64 x86_ia64 ;
+                    setup-option = x86 x86_amd64 x86_iPF ;
+                    
+                    # Use a native x64 compiler if possible
+                    if [ os.environ PROCESSOR_ARCHITECTURE ] = AMD64
+                    {
+                        setup-option = x86 amd64 x86_IPF ;
+                    }
                 }
             }
         }