1 files changed, 14 insertions, 0 deletions
diff --git a/numpy/distutils/misc_util.py b/numpy/distutils/misc_util.py
index 2e6c94712..911726e26 100644
--- a/numpy/distutils/misc_util.py
+++ b/numpy/distutils/misc_util.py
@@ -318,6 +318,20 @@ def msvc_runtime_library():
         lib = None
     return lib
 
+def msvc_on_amd64():
+    if not (sys.platform=='win32' or os.name=='nt'):
+        return
+    from distutils.msvccompiler import get_build_architecture
+    if get_build_architecture() != 'AMD64':
+        return
+    if os.environ.has_key('DISTUTILS_USE_SDK'):
+        return
+    # try to avoid _MSVCCompiler__root attribute error
+    os.environ['DISTUTILS_USE_SDK']=1
+    return
+
+msvc_on_amd64()
+
 #########################
 
 #XXX need support for .C that is also C++