Fix Py_UNICODE_TODECIMAL definition for PyPy#6078
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Co-authored-by: Bas Schoenmaeckers <7943856+bschoenmaeckers@users.noreply.github.com>
davidhewitt
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Thanks; pyo3-ffi-check currently doesn't fire for missing PyPy symbols as we often naively assume they exist and allow PyPy to add them later in patch releases if they are missing.
It's probably the case that we should tighten this going forward, both so that we match the current (mostly static) implementation of PyPy 3.11 but also so that if PyPy 3.12 is ever under development we can catch missing 3.12 APIs eagerly.
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PyPy doesn't expose
_PyUnicode_ToDecimalDigit, so this definition leads to an unknown symbol error at link time. I'm not sure why the existing pypy tests didn't catch this. I was able to trigger it by running the maturin testintegration::integration_cases::case_16_pyo3_stub_generation_zigwith a zig compiler andpypy3.11-7.3.22installed on an ARM Mac.Py_UNICODE_TODECIMALis exposed in the PyPy C API, so we can just expose it directly: https://github.com/pypy/pypy/blob/872e7d92ee361276e84844b7fab208dc73c93a11/pypy/module/cpyext/unicodeobject.py#L186-L193That fixes the linker error for me in my local testing.