[BUG]: Is Pybind11 cmake work for Windows py3.14t if only set `PYTHON_EXECUTABLE`?

[victor-zou]

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What version (or hash if on master) of pybind11 are you using?

3.0.2 patch2a0

Problem description

I downloaded the official 3.14 python windows release from python.org and install the python 3.14t therein. When I compiles my extension with mingw (similar should be for MSVC), I explicitly assign in CMakeLists.txt that

set(PYTHON_EXECUTABLE "C:\Program Files\Python314\python3.14t.exe")

I found two questionable things:

1. the PYTHON_LIBRARY variable generated by python+"VERSION" will result in linking python314.dll instead of the expected python314t.dll
2. I found no where to detect free-threading setting and define Py_GIL_DISABLED=1

Reproducible example code

CMakeLists.txt:

set(PYTHON_EXECUTABLE "C:\Program Files\Python314\python3.14t.exe")

# still need set following to work?
set(PYTHON_LIBRARY "C:\Program Files\Python314\libs\python314t.lib")
set(CMAKE_CXX_FLAG "${CMAKE_CXX_FLAGS} -DPy_GIL_DISABLED=1")  # mingw, for example; /D for MSVC

Is this a regression? Put the last known working version here if it is.

Not a regression

[bansan85]

Py_GIL_DISABLED is supported with CMake 3.30.3 minimum.

With this version, you only need to set PYTHON_EXECUTABLE.