> There are people, though, that when looking for a license to use when releasing their software specifically choose one that is known to be incompatible with the GPL. Among them are people who go with the CDDL.
Are there really? Are there any who state so publicly? Or is this a purely theoretical concern?
Good point. I don't think I've ever heard of CDDL ever being used except by Sun (and Oracle as Sun's successor), and people redistributing work (or derivatives of work) originally released by Sun/Oracle.
I would imagine that the decision to use CDDL by anyone other than Sun/Oracle is based almost completely on "its the only license under which Sun/Oracle will allow me to release this work".
You will find that most fans of the CDDL are bigger fans of BSD licensing (e.g. node.js is BSD licensed), but there are a couple examples.
Offhand, I know that star and cdrtools are under a variant of the CDDL called CDDL-Schily, which is the CDDL with an addendum that software under it is "governed by the laws of Germany".
star and cdrtools are developed by someone who really loves Solaris and wants to make Linux more like it. Relicensing then under CDDL is just part of it; cdrtools also use Solaris-style device names even under Linux and he got quite angry with distros for patching it to use Linux's native device naming.
Are there really? Are there any who state so publicly? Or is this a purely theoretical concern?