It's a function that exists on all platforms, not just on Unix - it's
used in ldisc.c - so it shouldn't have been declared only in unix.h.
Score another for clang's warnings.
BUSY_CPU /* Locally busy (e.g. crypto); user interaction suspended */
};
void set_busy_status(void *frontend, int status);
+int frontend_is_utf8(void *frontend);
void cleanup_exit(int);
const char *get_x_display(void *frontend);
int font_dimension(void *frontend, int which);/* 0 for width, 1 for height */
long get_windowid(void *frontend);
-int frontend_is_utf8(void *frontend);
/* Things gtkdlg.c needs from pterm.c */
void *get_window(void *frontend); /* void * to avoid depending on gtk.h */