Squashfs tools 4.2 released

Hi,

I'm pleased to announce the release of Squashfs tools 4.2. This release adds support for XZ compression, and filesystem support for compression specific options (needed for XZ -dict-size and -Xbcj options). There's also the usual minor extra features and bug fixes.

The release can be downloaded from http://sourceforge.net/projects/squashfs.

1. Filesystem improvements:

1.1 Added XZ compression.
1.2 Added compression options support

2. Miscellaneous improvements/bug fixes.

2.1 Add missing NO_XATTR filesystem flag to indicate no-xattrs
option was specified and no xattrs should be stored when appending.
2.2 Add suppport in Unquashfs -stat option for displaying
NO_XATTR flag.
2.3 Remove checkdata entry from Unsquashfs -stat option if a 4.0
filesystem - checkdata is no longer supported.
2.4 Fix appending bug when appending to an empty filesystem - this
would be incorrectly treated as an error.
2.5 Use glibc sys/xattr.h include rather than using attr/xattr.h
which isn't present by default on some distributions.
2.6 Unsquashfs, fix block calculation error with regular files when
file size is between 2^32-block_size+1 and 2^32-1.
2.7 Unsquashfs, fix sparse file writing when holes are larger than
2^31-1.
2.8 Add external CFLAGS and LDFLAGS support to Makefile, and allow
build options to be specified on command line. Also don't over-write passed in CFLAGS definition.

Phillip