The 'Unknown option' error message arises when running colordiff, but there is no explicit call to colordiff during package installation or upgrade.
However ... is it possible that you have diff and colordiff aliased or symlinked? If so and the package installation calls a 'diff' this would in turn call 'colordiff'. (I haven't checked, but presumably the package installation script may use 'diff' to check whether /etc/colordiffrc is up to date) In which I can see how this message might arise, since it would maybe be running an older version of colordiff for that diff (until the install is completed). The 'difffile' option was introduced in colordiff 1.0.19 and, if you are running Debian/testing, you'd have been updating from colordiff 1.0.18 to colordiff 1.0.20. Might that explain what you see? Dave. -- Dave Ewart, da...@sungate.co.uk
