1  #ifndef _STDDEF_H
 2  #define _STDDEF_H
 3  
 4  #include <arch/types.h>
 5  
 6  #if !defined(offsetof)
 7  #define offsetof(type, member) __builtin_offsetof(type, member)
 8  #endif
 9  
10  #ifndef __WCHAR_TYPE__
11  #define __WCHAR_TYPE__ int
12  #endif
13  #ifndef __cplusplus
14  typedef __WCHAR_TYPE__ wchar_t;
15  #endif
16  
17  #ifndef __SIZE_TYPE__
18  #define __SIZE_TYPE__ unsigned long
19  #endif
20  typedef __SIZE_TYPE__ size_t;
21  /* There is a GCC macro for a size_t type, but not
22   * for a ssize_t type. Below construct tricks GCC
23   * into making __SIZE_TYPE__ signed.
24   */
25  #define unsigned signed
26  typedef __SIZE_TYPE__ ssize_t;
27  #undef unsigned
28  
29  #endif