Thank you, Lionel and Rodney. That did the trick: the whole thing built, including the documents.
Will everything actually work properly without xref? I assume xref was required because something uses it. I even got a build in the original directory after doing a make clean. There are still lots of warnings.... And I assume it still won't build in a shell in emacs. But now I can return to my original problem (not yet posted). Ross b ______________________________________________ ESSfirstname.lastname@example.org mailing list https://stat.ethz.ch/mailman/listinfo/ess-help