extern char *_DtGetMessage(char *filename, int set, int n, char *s);
# define GETMESSAGE(set, number, string)\
(_DtGetMessage(_CLIENT_CAT_NAME, set, number, string))
extern char *_DtGetMessage(char *filename, int set, int n, char *s);
# define GETMESSAGE(set, number, string)\
(_DtGetMessage(_CLIENT_CAT_NAME, set, number, string))