>> if you manage to do that I would have no qualms to change to different system >> or license, but not if that means the user has to read through potentially >> thousand of source files to find a file that makes his document work >> differently on his site than on others. >> > I'm sure there are lots of ways. One possibility that springs to mind that > would not run afoul of the DFSG would be to require the existence of a "flag > file" in modified distributions of LaTeX. The LaTeX engine could look for > this file at some convenience stage in its execution and spew a warning to > standard output or standard error[2]. I'm not a very sophisticated TeX user, > but I'm in the habit of reading the warnings it gives me. I've learned to > ignore overfull and underfull hboxes, but maybe real TeXperts have such > self-confidence that they ignore everything. :) In any event, it's the > user's responsibility to read the output the program gives him. > [Note. Instead of sendind this message to the Debian list, I going to send it to this list only. Reuse the argument if you want.] If I've understood correctly, this is a complete nonsense. If I get a document by "John Smith", how can I see if _his_ system has a flag file? I can only access my own flag file but I'm supposed to know I'm changed my distribution... Javier