1  #ifndef _SYS_FILE_H
       2  #include <misc/sys/file.h>
       3  
       4  # ifndef _ISOMAC
       5  
       6  /* Now define the internal interfaces.  */
       7  extern int __flock (int __fd, int __operation);
       8  
       9  # endif /* !_ISOMAC */
      10  #endif