text: #ifndef __ARCH_CC_H__
  #define __ARCH_CC_H__
  
  #include "sysconfig.h"
  
  #ifndef BYTE_ORDER
  #define BYTE_ORDER LITTLE_ENDIAN
  #endif /* BYTE_ORDER */
  
  typedef unsigned   char    u8_t;
  typedef signed     char    s8_t;
  typedef unsigned   short   u16_t;
  typedef signed     short   s16_t;
  typedef unsigned   int     u32_t;
  typedef signed     int     s32_t;
  typedef unsigned long mem_ptr_t;
  
  /* Define (sn)printf formatters for these lwIP types */
  #define X8_F  "02x"
  #define U16_F "hu"
  #define S16_F "hd"
  #define X16_F "hx"
  #define U32_F "u"
  #define S32_F "d"
  #define X32_F "x"
  #define SZT_F "d"
  
  #define PACK_STRUCT_FIELD(x) x
  #define PACK_STRUCT_STRUCT __attribute__((packed))
  #define PACK_STRUCT_BEGIN
  #define PACK_STRUCT_END
  
  #endif /* __ARCH_CC_H__ */
  