configure: use sys/xattr.h for fsetxattr detection

The only user of fsetxattr and HAVE_FSETXATTR is fsr, which includes
sys/xattr.h (from libc).  However, the m4 macro to detect fsetxattr
support requires attr/xattr.h (from libattr).  libattr dropped xattr.h
last year, so update the check.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>

1 file changed