[issue22171] stack smash when using ctypes/libffi to access union

[Sean McCully]

Sean McCully added the comment:

For what it is worth, I was not able to reproduce, on the current Python 2.7.8 branch and Mac OS X.

./python2
Python 2.7.8+ (2.7:ba90bd01c5f1, Aug 12 2014, 12:21:58)

gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin13.3.0
Thread model: posix

Version:	5.1.1 (5B1008)
  Location:	/Applications/Xcode.app
  Applications:
  Xcode:	5.1.1 (5085)
  Instruments:	5.1.1 (55045)
  SDKs:
  OS X:
  10.8:	(12F37)
  10.9:	(13C64)
  iOS:
  7.1:	(11D167)
  iOS Simulator:
  7.1:	(11D167)


python2 test.py
True

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nosy: +seanmccully

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22171>
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