### - m -

- MALFORMED_CONDITION : Glib::RegexError
- MALFORMED_PROPERTY : Glib::RegexError
- MARCH : Glib::Date
- MATCH : Glib::RegexError
- MATCH_RULE_INVALID : Gio::DBus::Error
- MATCH_RULE_NOT_FOUND : Gio::DBus::Error
- MAY : Glib::Date
- MEMORY_ERROR : Glib::RegexError
- MESSAGE_TOO_LARGE : Gio::Error
- MFILE : Glib::SpawnError
- MISC : Gio::TlsError
- MISSING_ATTRIBUTE : Glib::MarkupError
- MISSING_BACK_REFERENCE : Glib::RegexError
- MISSING_CONTROL_CHAR : Glib::RegexError
- MISSING_DIGIT : Glib::RegexError
- MISSING_NAME : Glib::RegexError
- MISSING_SUBPATTERN_NAME : Glib::RegexError
- MISSING_SUBPATTERN_NAME_TERMINATOR : Glib::RegexError
- MONDAY : Glib::Date
- MONTH : Glib::Date