[ANN] Squashfs tools 4.2 released

[Phillip Lougher]

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

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