Python binding fails at runtime with undefined symbol when built with clang

[yurivict]

The README example fails:

$ python3.8 ex.py
Traceback (most recent call last):
  File "ex.py", line 1, in <module>
    import jet
  File "/usr/local/lib/python3.8/site-packages/jet/__init__.py", line 6, in <module>
    from .bindings import (
ImportError: /usr/local/lib/python3.8/site-packages/jet/bindings.cpython-38.so: Undefined symbol "_ZN2tf11FlowBuilder6reduceINSt3__111__wrap_iterIPN3Jet6TensorINS2_7complexIfEEEEEESA_S8_ZNS4_19TaskBasedContractorIS8_E16AddReductionTaskEvEUlRKS8_SE_E_EENS_4TaskET_T0_RT1_T2_"

TaskFlow and pubind11 are cloned.

The problem only exists in clang build, and doesn't exist in gcc build.

Version: 0.2.2-2-g99c55ce
clang-13
FreeBSD 13.1