extern int (*error_printf)(char *s, ...);
void setIPCDeathHook(void (*hook)(void));
void setIPCErrorPrintf(int (*func)(char *s, ...));
extern int (*error_printf)(char *s, ...);
void setIPCDeathHook(void (*hook)(void));
void setIPCErrorPrintf(int (*func)(char *s, ...));