viper build problem [from cvs]

[Sorry if this has already been reported: I'm not on xemacs-beta now. I am not a viper user and I don't have time to investigate further. I have Poitou and the latest packages from cvs.] make[2]: Entering directory `xemacs-packages/wp/viper' Creating ./_pkg.el xemacs -no-autoloads -batch -l ../../package-compile.el -- advice cl ring xemacs-base -- viper-cmd.el Loading xemacs-20/solaris-build/lisp/auto-autoloads... Loading xemacs-packages/libs/xemacs-base/auto-autoloads... Wrong type argument: stringp, nil xemacs exiting. make[2]: *** [viper-cmd.elc] Error 255 make[2]: Leaving directory `xemacs-packages/wp/viper' make[1]: *** [all] Error 2 -- Jens-Ulrik Holger Petersen <http://www.kurims.kyoto-u.ac.jp/~petersen/> Research Institute for Mathematical Sciences, Kyoto University