int mutt_match_spam_list (const char *, SPAM_LIST *, char *, int);
int mutt_messages_in_thread (CONTEXT *, HEADER *, int);
int mutt_multi_choice (char *prompt, char *letters);
int mutt_match_spam_list (const char *, SPAM_LIST *, char *, int);
int mutt_messages_in_thread (CONTEXT *, HEADER *, int);
int mutt_multi_choice (char *prompt, char *letters);