bitbake: bb.build: handle __builtins__ as a module

Fixes pypy support.

(Bitbake rev: e90cfc655affeec8f5519f7078dad5f99db3c461)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/build.py

@@ -61,8 +61,13 @@ def reset_cache():
 # in all namespaces, hence we add them to __builtins__.
 # If we do not do this and use the exec globals, they will
 # not be available to subfunctions.
-__builtins__['bb'] = bb
-__builtins__['os'] = os
+if hasattr(__builtins__, '__setitem__'):
+    builtins = __builtins__
+else:
+    builtins = __builtins__.__dict__
+
+builtins['bb'] = bb
+builtins['os'] = os
 
 class FuncFailed(Exception):
     def __init__(self, name = None, logfile = None):