+int is_dbcs_leadbyte(int codepage, char byte);
+int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
+ wchar_t *wcstr, int wclen);
+int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
+ char *mbstr, int mblen, char *defchr, int *defused);
+void init_ucs(void);
+
+/* Things pty.c needs from pterm.c */
+char *get_x_display(void);
+int font_dimension(int which); /* 0 for width, 1 for height */