The following test fails on the ppc Debian buildbot (trunk and py3k):

test_build_ext (distutils.tests.test_build_ext.BuildExtTestCase) ...
gcc-4.3: x86_64: No such file or directory
cc1: error: unrecognized command line option "-arch"
ERROR

======================================================================
ERROR: test_build_ext (distutils.tests.test_build_ext.BuildExtTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/tests/test_build_ext.py",
line 64, in test_build_ext
    cmd.run()
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/command/build_ext.py",
line 353, in run
    self.build_extensions()
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/command/build_ext.py",
line 480, in build_extensions
    self.build_extension(ext)
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/command/build_ext.py",
line 550, in build_extension
    depends=ext.depends)
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/ccompiler.py",
line 695, in compile
    self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
  File
"/home/pybot/buildarea/trunk.klose-debian-ppc/build/Lib/distutils/unixccompiler.py",
line 180, in _compile
    raise CompileError, msg
CompileError: command 'gcc' failed with exit status 1

Here are links to the log files:
http://www.python.org/dev/buildbot/trunk.stable/ppc%20Debian%20unstable%20trunk/builds/388/step-test/0
http://www.python.org/dev/buildbot/3.x.stable/ppc%20Debian%20unstable%203.x/builds/654/step-test/0