extern void tui_redisplay_readline (void);
/* Expand TABs into spaces. */
-extern char *tui_expand_tabs (const char *, int);
+extern gdb::unique_xmalloc_ptr<char> tui_expand_tabs (const char *);
/* Enter/leave reverse video mode. */
extern void tui_set_reverse_mode (WINDOW *w, bool reverse);