error: man2/copy_file_range.2: No such file or directory
error: man2/readahead.2: No such file or directory
error: man2/splice.2: No such file or directory
error: man2/sync_file_range.2: No such file or directory
error: man3/fopencookie.3: No such file or directory
error: man7/feature_test_macros.7: No such file or directory