[MacPorts] #65091: py-fonttools causes Python to segfault when running fonttools-3.10 command on macOS 10.11

[MacPorts]

#65091: py-fonttools causes Python to segfault when running fonttools-3.10 command
on macOS 10.11
-----------------------+--------------------------
 Reporter:  snowflake  |      Owner:  amake
     Type:  defect     |     Status:  assigned
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.7.99
 Keywords:             |       Port:  py-fonttools
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 I've built py310-fonttools with all variants negated.

 The ttx-3.10 command works fine.

 On macOS 10.11 El Capitan:

 The fonttools-3.10 command invoked with no options gets segmentation fault
 11 crash after about 5 seconds after displaying the version number. Python
 is crashing.

 I've tried various combinations of both older versions of the port and
 older versions of Python and all give the same crash.

 I've also tried building the port with all variants except qt enabled. It
 still crashes.

 fonttools-3.10 command works on macOS Monterey, although I have not
 explored any of its features.

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Ticket URL: <https://trac.macports.org/ticket/65091>
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