Sorry for not exactly being helpful with your issue, but that one is
the exact reason I started on https://git.sr.ht/~ft/npe.
APE is too limiting and sometimes it's easier to rewrite small parts
of the software being ported with plan 9 libc-specific api.
I also did a small write-up on porting in general some time ago:
http://wiki.9front.org/porting.

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