I have written a patch that adds full lzip/lunzip support to busybox,
including seamless lz decompression (of tar.lz files, etc), but not
including tar.lz archive creation.
The resulting busybox lzip applet and the real lzip produce bit-for-bit
identical *compressed* files.
I have also written a description of the changes and a listing of the
size increases to busybox object files.
http://download.savannah.gnu.org/releases/lzip/README_busybox_lzip_patch
http://download.savannah.gnu.org/releases/lzip/busybox_lzip-6.patch.gz
http://download.savannah.gnu.org/releases/lzip/busybox_lzip-6.patch.lz
http://download.savannah.gnu.org/releases/lzip/busybox_objsizes.diff
The patch has to be applied to the latest busybox snapshot like this:
cd busybox
patch -p1 < <path>/busybox_lzip-6.patch
Please, test it and report any bugs you find.
Best regards,
Antonio Diaz, lzip author and maintainer.
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