[issue1479255] Fix building with SWIG's -c++ option set in setup.py

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

We need to add a test for this behavior, to make sure it is fixed and to prevent regressions.

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components: +Distutils2
nosy: +eric.araujo
versions: +3rd party

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<http://bugs.python.org/issue1479255>
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