libarchive/libarchive — pull request #3 by ggcueroad (2012-02-06 05:58:41+00:00)
Title: Fix issue 238.

Skip the setup sparse on linux without a check of errno if
ioctl(,FS_IOC_FIEMAP,) failed because the errno is not fixed
, for example, some file system returns ENOTTY, another returns
EOPNOTSUPP, or EINVAL and so on. We cannot decide what errno
exactly indicates an unsupported error.