C bindings broken on MacOS/Arm64 with GFortran 11

[awvwgk]

The C bindings pass a nested function as callback to allow the C API to carry along user data via an opaque pointer (void*). This mechanism is also used in the Python API to propagate exceptions storing the small object in a handle and pass it as void* to the Minpack C API.

This issue has been fixed for GCC 12, see iains/gcc-darwin-arm64#26.

Potential workaround available in #30

[awvwgk]

Anyone around with a MacOS/Arm64 machine to test whether this is fixed with GCC 12?

cc @certik @Nicholaswogan

[Nicholaswogan]

Ya it is fixed with gfortran 11.3 (current homebrew version). Gfortran 12.1 also works.

[awvwgk]

Thanks, than we can close this issue as resolved.