text: #ifndef _SYS_CDEFS_H
  #define _SYS_CDEFS_H 1
  
  #define __flibc 1
  
  #ifdef __cplusplus
  #define __BEGIN_DECLS extern "C" {
  #define __END_DECLS }
  #else // __cplusplus
  #define __BEGIN_DECLS
  #define __END_DECLS
  #endif // __cplusplus
  
  #endif
  