#ifndef _STDARG_H#define _STDARG_Htypedef char *va_list;/* only correct for i386 */#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))#define va_end(ap)/* fix a buggy dependency on GCC in libio.h */typedef va_list __gnuc_va_list;#define _VA_LIST_DEFINED#endif