Commits on Jan 12, 2023

1. pythongh-99942: correct the pkg-config/python-config flags for cygwin… …

   …/android
   
   On shared build configurations, Cygwin and Android need to link to
   libpython. See bpo-21536.
   
   This was corrected in distutils with an explicit check to only link when
   libpython is built shared, but implemented in configure.ac
   unconditionally. The correct approach is to follow distutils, which
   includes a comment regarding why:
   
   - on Android, a shared libpython is RTLD_LOCAL, and thus available only
     to the main executable, not exported to loaded modules, but a static
     libpython *is* the main executable and thus exported
   
   - on Cygwin, symbols in shared libraries must be resolved at link time
   
   It's actually not clear to me what to do for Cygwin. Cygwin doesn't
   actually build static libpython successfully. If it did, then extensions
   probably need to be linked to the import library for the executable,
   rather than the full static library. So omitting this here is probably
   correct, but incomplete. Either way, it won't matter until other fixes
   are made.

   

   eli-schwartz committed Jan 12, 2023
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