fix fcntl.h warning #237

Job	Run time
configure_matrix	1s
configure_matrix	1s
build_wheels (ubuntu-latest, cp39-manylinux_x86_64, x86_64)	9m 46s
build_wheels (ubuntu-latest, cp39-manylinux_x86_64, x86_64)	9m 46s
build_wheels (ubuntu-latest, cp39-manylinux_aarch64, aarch64)	4m 9s
build_wheels (ubuntu-latest, cp39-manylinux_aarch64, aarch64)	6m 28s
build_wheels (ubuntu-latest, cp39-musllinux_x86_64, x86_64)	13m 2s
build_wheels (ubuntu-latest, cp39-musllinux_x86_64, x86_64)	13m 2s
build_wheels (ubuntu-latest, cp39-musllinux_aarch64, aarch64)	1h 18m 52s
build_wheels (ubuntu-latest, cp39-musllinux_aarch64, aarch64)	1h 18m 52s
build_wheels (macos-13, cp39-macosx_x86_64, x86_64, 13)	7m 2s
build_wheels (macos-13, cp39-macosx_x86_64, x86_64, 13)	7m 2s
build_wheels (macos-14, cp39-macosx_arm64, arm64, 14)	3m 39s
build_wheels (macos-14, cp39-macosx_arm64, arm64, 14)	3m 39s
build_wheels (macos-15, cp39-macosx_arm64, arm64, 15)	4m 20s
build_wheels (macos-15, cp39-macosx_arm64, arm64, 15)	4m 20s
build_wheels (windows-latest, cp39-win32, x86)	24m 6s
build_wheels (windows-latest, cp39-win32, x86)	24m 6s
build_wheels (windows-latest, cp39-win_amd64, AMD64)	15m 5s
build_wheels (windows-latest, cp39-win_amd64, AMD64)	15m 5s
upload_pypi_test	0s
upload_pypi_test	0s
upload_pypi	0s
upload_pypi	0s
	5h 22m 23s

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