These are the historical kernel patches that added lzma1 support to
Squashfs.  These patches were rejected for the mainline kernel in 2010,
and so lzma1 support for Squashfs was abandoned.

I have put these patches back up on kernel.org as a service to
owners that have embedded systems that use these legacy
lzma1 compressed Squashfs filesystems.  Their use is deprecated for
anything else.

The kernel version is 2.6.33-rc4 which was the kernel the patches
were prepared and tested against.  I have no idea if the patches will
compile and work on later kernels.