use union instead of struct · GiacomoPope/python-flint@83f2179

Command ['python', '-m', 'pip', 'wheel', '/Users/runner/work/python-flint/python-flint', '--wheel-dir=/private/var/folders/sy/86bqx33x44j7mfsyzj1snqmh0000gn/T/cibw-run-6ss61lrs/cp39-macosx_x86_64/built_wheel', '--no-deps'] failed with code 1.

Process completed with exit code 1.

libtool 2.4.7 is already installed and up-to-date. To reinstall 2.4.7, run: brew reinstall libtool