[MacPorts] #70603: python312 @3.12.5_0+lto+optimizations: segfaults with ctypes

[MacPorts]

#70603: python312 @3.12.5_0+lto+optimizations: segfaults with ctypes
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 Reporter:  quintusdias  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.10.1
 Keywords:               |       Port:  jmr at macports.org
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 I have a package called glymur that uses ctypes to interface with the
 openjpeg library and I have been running into segfaults when using
 python312 on intel.   The more I try to isolate the bug, the more I think
 might not have anything to do with the openjpeg port, but rather with the
 ctypes module on python312.

 The attached reproduction steps are basically pulled from the official
 python documentation at https://docs.python.org/3/library/ctypes.html
 #ctypes-callback-functions.  It produces segfaults on python312, but not
 on python311 or python310.  It also does not produce segfaults on Anaconda
 on the same machine.  I do not see the segfaults on ARM either, just
 intel.  Removing the +lto and +optimizations variants did not seem to
 change anything.

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Ticket URL: <https://trac.macports.org/ticket/70603>
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