$ cvc cook asterisk
info: Building asterisk
warning: *** No ptys found -- not logging build ***
Traceback (most recent call last):
  File "/usr/bin/cvc", line 21, in ?
    sys.exit(cvc.main())
  File "/usr/lib/python2.4/site-packages/conary/cvc.py", line 490, in main
    return realMain(ccfg, argv)
  File "/usr/lib/python2.4/site-packages/conary/cvc.py", line 243, in realMain
    sourceCommand(cfg, otherArgs[1:], argSet)
  File "/usr/lib/python2.4/site-packages/conary/cvc.py", line 456, in sourceCommand
    profile=profile, crossCompile=crossCompile)
  File "/usr/lib/python2.4/site-packages/conary/build/cook.py", line 1222, in cookCommand
    callback = CookCallback())
  File "/usr/lib/python2.4/site-packages/conary/build/cook.py", line 1139, in cookItem
    callback=callback)
  File "/usr/lib/python2.4/site-packages/conary/build/cook.py", line 263, in cookObject
    crossCompile = crossCompile)
  File "/usr/lib/python2.4/site-packages/conary/build/cook.py", line 620, in cookPackageObject
    crossCompile=crossCompile)
  File "/usr/lib/python2.4/site-packages/conary/build/cook.py", line 712, in _cookPackageObject
    logBuildEnvironment(logFile, sourceVersion, recipeObj.macros, cfg)
UnboundLocalError: local variable 'logFile' referenced before assignment
> /usr/lib/python2.4/site-packages/conary/build/cook.py(712)_cookPackageObject()-> logBuildEnvironment(logFile, sourceVersion, recipeObj.macros, cfg)
(Epdb)