ediff broken?

After recent package upgrades, I just tried ediff and got this error: Symbol's value as variable is void: top-gutter Processing difference regions ... done Buffer B: Processing difference region 0 of 5 Buffer A: Processing difference region 0 of 5 Computing differences between TestNPR4.ccDgAexs and TestNPR3.ccDgAr7y ... Loading ediff...done Loading ediff... This is: Value: "21.1 (patch 14) \"Cuyahoga Valley\" XEmacs Lucid" `ediff-version' is a variable declared in Lisp. -- loaded from "/usr/lib/xemacs/xemacs-packages/lisp/ediff/ediff.elc" Value: "2.76.1" Documentation: The current version of Ediff