Remove SHARED from pybind11_add_module (take two) to avoid segfaults on macOS with Python statically linked with libpython#1418
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traversaro wants to merge 1 commit intoros2:rollingfrom
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…S with Python statically linked with libpython Signed-off-by: Silvio Traversaro <silvio@traversaro.it>
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fujitatomoya
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@traversaro thanks for the ping.
since #1305 is original PR, i just rebased that one, and restarted the CI.
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Perfect, thanks! |
This was referenced Feb 28, 2025
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This PR rebases #1305 on top of the latest rolling. #1305 was blocked on some kind of CI failure on Windows, I want to understand if this is still the case or not.
To give a bit more of context, removing
SHAREDfrompybind11_add_moduleensures that the built extension is compiled asMODULE(default setting forpybind11_add_module) and that can be loaded fine (i.e. without segfaults) on macOS with Python versions that statically linked libpython.conda-forgeis an example of distribution that provides a Python version that statically links libpython for performance reasons, and other distributions are also considering switching to statically linking libpython for performance reasons (see astral-sh/python-build-standalone#540 for example).As already mentioned in #1305, there should be no downside in building
_rclpy_pybind11asMODULE, unless somewhere_rclpy_pybind11is linked as a shared libraries viatarget_link_librariesinstead ofdlopen-ed by python, but I don't think there is any use case for which that make sense, and I could not find any such usage of_rclpy_pybind11in public repos.