Update the fix for issue4064 to deal correctly with all three variants of
universal builds that are presented by the configure script.
diff --git a/Lib/distutils/util.py b/Lib/distutils/util.py
index 48cc17f..e9d29ff 100644
--- a/Lib/distutils/util.py
+++ b/Lib/distutils/util.py
@@ -140,9 +140,13 @@
                 # 'universal' instead of 'fat'.
 
                 machine = 'fat'
+                cflags = get_config_vars().get('CFLAGS')
 
-                if '-arch x86_64' in get_config_vars().get('CFLAGS'):
-                    machine = 'universal'
+                if '-arch x86_64' in cflags:
+                    if '-arch i386' in cflags:
+                        machine = 'universal'
+                    else:
+                        machine = 'fat64'
 
             elif machine in ('PowerPC', 'Power_Macintosh'):
                 # Pick a sane name for the PPC architecture.