UndefinedKernel   970 magick/morphology.c     case UndefinedKernel:    /* These should not call this function */
UndefinedKernel  2164 magick/morphology.c         kernel->type = UndefinedKernel;
UndefinedKernel  1137 magick/option.c     { "Undefined", UndefinedKernel, UndefinedOptionFlag, MagickTrue },
UndefinedKernel  1176 magick/option.c     { (char *) NULL, UndefinedKernel, UndefinedOptionFlag, MagickFalse }