>That said, its possible that the GNU tools will evolve in the future, at >a rate differently than the ksh93 versions do. (At that point, the case >says that the ksh93 version will either be adapted, or they'll stop >supplying the built-in.)
And, unfortunately, anyone who wants to deploy a newer version of a GNU tool in OpenSolaris needs to make sure that ksh93 is updated at the same time. Casper