Re: Build fix for lang/python312 on macOS

[Greg Troxel <gdt%lexort.com@localhost>]

Greg Troxel <gdt%lexort.com@localhost> writes:

> Pierre Pronchery <khorben%defora.org@localhost> writes:
>
>> FWIW, the issue with expat is related to the absence of the symbol
>> XML_SetReparseDeferralEnabled in the version of expat detected by
>> Python on macOS. If I try to build without
>> CONFIGURE_ARGS+=--with-system-expat, the package builds again as
>> expected.

In python 3.12.4, Modules/pyexpat.c, I see:

  static PyObject *
  pyexpat_xmlparser_SetReparseDeferralEnabled_impl(xmlparseobject *self,
                                                   int enabled)
  /*[clinic end generated code: output=5ec539e3b63c8c49 input=021eb9e0bafc32c5]*/
  {
  #if XML_COMBINED_VERSION >= 20600
      XML_SetReparseDeferralEnabled(self->itself, enabled ? XML_TRUE : XML_FALSE);
      self->reparse_deferral_enabled = (bool)enabled;
  #endif
      Py_RETURN_NONE;
  }

and I therefore suspect pkgsrc head will be ok for you.


There is a remaining question about whether we should add an API depends
to force pkgsrc expat, but that would need a solid argument that it's
worth it.  (And leading up to branch, concurrence from jperkin that it's
a good functionality/risk tradeoff.)