UndefinedRule     567 Magick++/lib/Magick++/Include.h   using MagickCore::UndefinedRule;
UndefinedRule    1075 magick/option.c     { "Undefined", UndefinedRule, UndefinedOptionFlag, MagickTrue },
UndefinedRule    1078 magick/option.c     { (char *) NULL, UndefinedRule, UndefinedOptionFlag, MagickFalse }
UndefinedRule    1133 magick/option.c     { (char *) NULL, UndefinedRule, UndefinedOptionFlag, MagickFalse }