In a number of places code still revers
to "sys.platform == 'mac'" and that is
dead code because it refers to a platform
that is no longer supported (and hasn't been
supported for several releases).

Fixes issue #7908 for the trunk.
diff --git a/Lib/plat-mac/bundlebuilder.py b/Lib/plat-mac/bundlebuilder.py
index ce7ce45..4339913 100755
--- a/Lib/plat-mac/bundlebuilder.py
+++ b/Lib/plat-mac/bundlebuilder.py
@@ -273,7 +273,7 @@
 del __load
 """
 
-MAYMISS_MODULES = ['mac', 'os2', 'nt', 'ntpath', 'dos', 'dospath',
+MAYMISS_MODULES = ['os2', 'nt', 'ntpath', 'dos', 'dospath',
     'win32api', 'ce', '_winreg', 'nturl2path', 'sitecustomize',
     'org.python.core', 'riscos', 'riscosenviron', 'riscospath'
 ]