Function gio_sys::g_file_build_attribute_list_for_copy

pub unsafe extern "C" fn g_file_build_attribute_list_for_copy(
    file: *mut GFile, 
    flags: GFileCopyFlags, 
    cancellable: *mut GCancellable, 
    error: *mut *mut GError
) -> *mut c_char

This is supported on crate feature v2_68 only.