fix builds with cmake < 3.21

zeromq / pyzmq

PyZMQ: Python bindings for zeromq

http://zguide.zeromq.org/py:all

BSD 3-Clause "New" or "Revised" License

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Closed minrk closed 5 months ago

minrk commented 5 months ago

file(COPY_FILE is new in 3.21, but we claim to support 3.14

use configure_file(...COPYONLY) instead, which does the same thing.