Request help in packaging for macports

[esafak]

I am updating pypy's macports (MacOS) package, but I can not get it to compile, and I have not done so before. I would appreciate your assistance here. The errors so far amount to

:info:build [platform:Error] nonfuncnodes_28.c:9101:2: error: use of undeclared identifier 'PyExpat_XML_SetReparseDeferralEnabled'; did you mean 'XML_SetReparseDeferralEnabled'?

How should I remedy this?

[mattip]

I commented on the upstream issue.