need a little help building 3.13t wheel for Windows

[electroglyph]

I can build other wheels fine, but the free-threaded one is giving me a bit of trouble.

My build makes some good progress...but then partway thru i get this:

delay_load_hook.cc
  onnxruntime_pybind_mlvalue.cc
  onnxruntime_pybind_module.cc
  onnxruntime_pybind_state_common.cc
  onnxruntime_pybind_schema.cc
  onnxruntime_pybind_sparse_tensor.cc
LINK : fatal error LNK1104: cannot open file 'python313.lib' [D:\out\Release\onnxruntime_pybind11_state.vcxproj]

i opened that vcxproj file and python313.lib isn't in there anywhere...but several references to python313t.lib are there (as expected)

any idea where it's getting python313.lib from so that i can edit it?

edit: i grepped the entire build folder and get no hits for python313.lib except for pybind .obj files, which have inside them:
/DEFAULTLIB:"python313.lib"

edit2: well, i tried something dumb. i renamed python313t.lib to python313.lib and stuck it in the build folder. the wheel built successfully, but doesn't work, oops =)

[snnn]

The library name is provided by cmake. https://cmake.org/cmake/help/latest/module/FindPython.html
Probably cmake does not support it yet.

[electroglyph]

ah, thanks! i think you set me on the right track, i totally forgot to define Py_GIL_DISABLED, i'll have another crack at this in a little bit

[electroglyph]

okay, success. free-threaded wheel built and tested with my ONNX model.
i upgraded to cmake4 (which isn't compatible with onnxruntime yet) and ran build.py with these parameters:
--cmake_extra_defines Py_GIL_DISABLED=1 CMAKE_POLICY_VERSION_MINIMUM=3.5