configure: better detect windows 'bitness' (WOW64)

Signed-off-by: Fedor Indutny <[email protected]>
mhdawson · Jul 1, 2014 · 423725b · 423725b
1 parent 1c0ec71
commit 423725b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/configure b/configure
@@ -402,7 +402,8 @@ def host_arch_cc():
 def host_arch_win():
   """Host architecture check using environ vars (better way to do this?)"""
 
-  arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
+  observed_arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
+  arch = os.environ.get('PROCESSOR_ARCHITEW6432', observed_arch)
 
   matchup = {
     'AMD64'  : 'x64',