In the pythonxy 2.7.9.0, the MinGW -mno-cygwin bug appears again

[GoogleCodeExporter]

1. 2.7.9.0
2. Recommended setup + MinGW as additional plugin
3. Not customized
5. default path
6. For "All users"
7. Windows 7
8. No
9. a regular user
10. simply by double-clicking on the installer
11. you uninstalled any previous Python distribution (including the
official .msi)

What steps will reproduce the problem?
1. Try to run something that uses distutils/mingw

Expected output: it compiles. Result: MinGW complains about not knowing 
"-mno-cygwin"

The exact error occurs in the version detection in cygwincompiler.py. The lines:

  out = os.popen(gcc_exe + ' -dumpversion', 'r')
  out_string = out.read()

return out_string = None leading to a gcc_version of None, that is seen as < 
'4' and so the cygwin switch is added.

This doesn't seem to have changed since 2.7.8, so presumably something else 
happened that broke the version detection or earlier pythonxy versions had a 
patch that wasn't applied after the switch to msvc?

Original issue reported on code.google.com by Michael....@gmail.com on 14 Mar 2015 at 12:24