Traceback (most recent call last):
  File "download_depends.py", line 63, in <module>
    download_and_extract(entry['url'], entry['dest'])
  File "download_depends.py", line 21, in download_and_extract
    f = urllib2.urlopen(url)
  File "/usr/lib64/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib64/python2.7/urllib2.py", line 435, in open
    response = meth(req, response)
  File "/usr/lib64/python2.7/urllib2.py", line 548, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib64/python2.7/urllib2.py", line 473, in error
    return self._call_chain(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 556, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 404: Not Found

https://protobuf.googlecode.com/files/protoc-2.5.0-win32.zip
https://protobuf.googlecode.com/files/protobuf-2.5.0.zip
https://googletest.googlecode.com/files/gtest-1.7.0.zip
http://zlib.net/zlib-1.2.8.tar.gz