How to Install txz files in VL6?
Program xz found in gslapt should be installed
-- Download file *.txz
-- Open file as superuser (su) with 'mc'
-- Make a directory with file name (short only) on right or left panel in 'mc'.
-- Open that directory
-- Copy files from file.txz, usually directories, opened with 'mc' into that directory
-- Close that directory
-- Put cursor on this directory
-- Click F2 in 'mc'
-- Click on "Compress the current subdirector (tar.gz)"
-- Then follow instruction of 'mc' like giving a name to the file.
'mc' will put the extension tar.gz so no need to give.
-- When file *.tar.gz has been created move it to *.tgz.
(mv file.tar.gz ./file.tgz)
-- install or upgrade file.tgz.
Note: on files whith new dependencies/libraries those are not
installed and therefore the new program might not work.