[MacPorts] #63088: python39 @3.9.5_0: failed lib-dynload

[MacPorts]

#63088: python39 @3.9.5_0: failed lib-dynload
--------------------------+----------------------
 Reporter:  RobertAdesam  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  High          |  Milestone:
Component:  ports         |    Version:  2.7.1
 Keywords:                |       Port:  python39
--------------------------+----------------------
 Installing python39 on MacOSX 10.15.7 (build 19H1217) with xcode 12.4 or
 11.7, results in multiple failed so-files in lib-dynload:

 {{{
 $ cd
 /opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9
 /lib-dynload/ && ls -1 *failed.so
 _bz2.cpython-39-darwin_failed.so
 _ctypes.cpython-39-darwin_failed.so
 _curses.cpython-39-darwin_failed.so
 _curses_panel.cpython-39-darwin_failed.so
 _elementtree.cpython-39-darwin_failed.so
 _lzma.cpython-39-darwin_failed.so
 _sqlite3.cpython-39-darwin_failed.so
 pyexpat.cpython-39-darwin_failed.so
 readline.cpython-39-darwin_failed.so
 }}}

 Configure step gives warning:

 {{{
 Warning: Configuration logfiles contain indications of -Wimplicit-
 function-declaration; check that features were not accidentally disabled:
   getrandom: found in Python-3.9.5/config.log
   le64toh: found in Python-3.9.5/config.log
 }}}

 Also python complains the module msvcrt does not exist when importing
 subprocess (e.g. py39-setuptools fails to install):

 {{{
 $ python3.9
 Python 3.9.5 (default, Jun 13 2021, 11:15:41)
 [Clang 12.0.0 (clang-1200.0.32.29)] on darwin
 Type "help", "copyright", "credits" or "license" for more information.
 >>> import subprocess
 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py",
 line 73, in <module>
     import msvcrt
 ModuleNotFoundError: No module named 'msvcrt'

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py",
 line 78, in <module>
     import _posixsubprocess
 ImportError: dynamic module does not define module export function
 (PyInit__posixsubprocess)
 >>>
 }}}

 Might be related to ticket #61282? Also had the the -Wimplicit-function-
 declaration warning on several other ports but seem to work fine, eg
 libiconv and xz.

-- 
Ticket URL: <https://trac.macports.org/ticket/63088>
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