[oe] Mistakenly pushed changes without review, specially 6633c4c95a

[Michael Smith]

Hi Otavio,

Otavio Salvador wrote:
> I'm specially interested to know about 6633c4c95a. If people objects
> on it I can revert it but I think it is not necessary to revert it if
> people agrees with it.

It looked good to me, but bitbake bails with:

RuntimeError: dictionary changed size during iteration

(reverting 6633c4c9 fixes it for me)

Also -- I've seen some references to MACHINE_CLASS. I'm wondering if it 
was intended to solve a similar problem.

Here's the traceback for the bailout.

Traceback (most recent call last):
   File "/home/michael/startitup/bitbake/bin/bitbake", line 143, in ?
     main()
   File "/home/michael/startitup/bitbake/bin/bitbake", line 123, in main
     cooker.parseConfiguration()
   File "/home/michael/startitup/bitbake/lib/bb/cooker.py", line 68, in 
parseConfiguration
     self.parseConfigurationFile( os.path.join( "conf", "bitbake.conf" ) )
   File "/home/michael/startitup/bitbake/lib/bb/cooker.py", line 390, in 
parseConfigurationFile
     self.configuration.data = bb.parse.handle( afile, 
self.configuration.data )
   File "/home/michael/startitup/bitbake/lib/bb/parse/__init__.py", line 
75, in handle
     return h['handle'](fn, data, include)
   File 
"/home/michael/startitup/bitbake/lib/bb/parse/parse_py/ConfHandler.py", 
line 167, in handle
     feeder(lineno, s, fn, data)
   File 
"/home/michael/startitup/bitbake/lib/bb/parse/parse_py/ConfHandler.py", 
line 221, in feeder
     include(fn, s, data, "include required")
   File 
"/home/michael/startitup/bitbake/lib/bb/parse/parse_py/ConfHandler.py", 
line 114, in include
     ret = handle(fn, data, True)
   File "/home/michael/startitup/bitbake/lib/bb/parse/__init__.py", line 
75, in handle
     return h['handle'](fn, data, include)
   File 
"/home/michael/startitup/bitbake/lib/bb/parse/parse_py/ConfHandler.py", 
line 167, in handle
     feeder(lineno, s, fn, data)
   File 
"/home/michael/startitup/bitbake/lib/bb/parse/parse_py/ConfHandler.py", 
line 192, in feeder
     bb.data.update_data(e)
   File "/home/michael/startitup/bitbake/lib/bb/data.py", line 509, in 
update_data
     for var in vars:
RuntimeError: dictionary changed size during iteration