LPRng options don't work with CUPS

[geofft]

A user has reported that -Zduplex -h doesn't work any more. While this makes perfect sense, it's somewhat unfortunate. Can our lpr wrapper convert these to CUPS options?

[andersk]

Assuming that we want the lpr wrapper to stop existing at all in the eventual future, you should think very carefully before adding behavior changes over CUPS lpr.

[broder]

I think we want to think hard about having some compatibility warning code in our lpr wrapper.

Something that displays a warning (using either zenity or stderr, as appropriate) if for some reason you're using a -Z options, or -n, or anything else that isn't supported in CUPS-land.

Ideally, we should have some way to replicate those options in ~/.cups/lpoptions or something like that, and have our compatibility warning link to directions on how to do that. Although I'm still not sure if there's some way to do the equivalent of LPOPTIONS for CUPS to set options globally.

[broder]

Oh - I should mention that I think this code should detect the difference between options on the command line (=> give you the equivalent CUPS command-line options) and from LPOPTIONS (=> tell you how to set the options in ~/.cups/lpoptions)

[broder]

We added code to do this translation recently (see #509)