Resolved warning C4996: 'fileno': The POSIX name for this item is dep… #6001

Job	Run time
build (windows-2019, Win32, v142, 17, Debug)	1m 17s
build (windows-2019, Win32, v142, 17, Release)	2m 7s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 16s
mingw (mingw64)	3m 56s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 28s
mingw (ucrt64)	4m 2s
build (windows-2019, x64, v140, 14, Debug)	2m 53s
build (windows-2019, x64, v140, 14, Release)	3m 26s
build (windows-2019, x64, v141, 17, Debug)	1m 59s
build (windows-2019, x64, v141, 17, Release)	3m 47s
build (windows-2019, x64, v142, 17, Debug)	2m 7s
build (windows-2019, x64, v142, 17, Release)	3m 9s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	2m 7s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	3m 14s
build (windows-2019, x64, v142, 20, Debug)	2m 1s
build (windows-2019, x64, v142, 20, Release)	3m 26s
build (windows-2022, x64, v143, Debug, 20)	2m 27s
	45m 42s

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