On 12/08/13 20:56, Glenn Fowler wrote:
> 
> thanks
> you are helping me debug via email because I don't have access to a debian 
> installation
> can you send me t.i from the following
> --
> cat > t.c <<'!'
> #include <sys/types.h>
> #include <sys/socket.h>
> int x;
> !
> cc -E t.c > t.i 2>&1
> --

see attachment.
Glad to help.

-- 
Giovanni Rapagnani
# 1 "t.c"
# 1 "<command-line>"
# 1 "t.c"
# 1 "/usr/include/x86_64-linux-gnu/sys/types.h" 1 3 4
# 25 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 341 "/usr/include/features.h" 3 4
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 30 "/usr/include/stdc-predef.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/predefs.h" 1 3 4
# 31 "/usr/include/stdc-predef.h" 2 3 4
# 342 "/usr/include/features.h" 2 3 4
# 371 "/usr/include/features.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 1 3 4
# 385 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 386 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 2 3 4
# 372 "/usr/include/features.h" 2 3 4
# 395 "/usr/include/features.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 1 3 4
# 10 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/gnu/stubs-64.h" 1 3 4
# 11 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 2 3 4
# 396 "/usr/include/features.h" 2 3 4
# 26 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4



# 1 "/usr/include/x86_64-linux-gnu/bits/types.h" 1 3 4
# 27 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 28 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4


typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;


typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;

typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;







typedef long int __quad_t;
typedef unsigned long int __u_quad_t;
# 130 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/typesizes.h" 1 3 4
# 131 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4


typedef unsigned long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned long int __nlink_t;
typedef long int __off_t;
typedef long int __off64_t;
typedef int __pid_t;
typedef struct { int __val[2]; } __fsid_t;
typedef long int __clock_t;
typedef unsigned long int __rlim_t;
typedef unsigned long int __rlim64_t;
typedef unsigned int __id_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;

typedef int __daddr_t;
typedef int __key_t;


typedef int __clockid_t;


typedef void * __timer_t;


typedef long int __blksize_t;




typedef long int __blkcnt_t;
typedef long int __blkcnt64_t;


typedef unsigned long int __fsblkcnt_t;
typedef unsigned long int __fsblkcnt64_t;


typedef unsigned long int __fsfilcnt_t;
typedef unsigned long int __fsfilcnt64_t;


typedef long int __fsword_t;

typedef long int __ssize_t;


typedef long int __syscall_slong_t;

typedef unsigned long int __syscall_ulong_t;



typedef __off64_t __loff_t;
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;


typedef long int __intptr_t;


typedef unsigned int __socklen_t;
# 30 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4



typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;




typedef __loff_t loff_t;



typedef __ino_t ino_t;
# 60 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
typedef __dev_t dev_t;




typedef __gid_t gid_t;




typedef __mode_t mode_t;




typedef __nlink_t nlink_t;




typedef __uid_t uid_t;





typedef __off_t off_t;
# 98 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
typedef __pid_t pid_t;





typedef __id_t id_t;




typedef __ssize_t ssize_t;





typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;





typedef __key_t key_t;
# 132 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/time.h" 1 3 4
# 57 "/usr/include/time.h" 3 4


typedef __clock_t clock_t;



# 73 "/usr/include/time.h" 3 4


typedef __time_t time_t;



# 91 "/usr/include/time.h" 3 4
typedef __clockid_t clockid_t;
# 103 "/usr/include/time.h" 3 4
typedef __timer_t timer_t;
# 133 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 146 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h" 1 3 4
# 213 "/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h" 3 4
typedef long unsigned int size_t;
# 147 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4



typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 194 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
typedef int int8_t __attribute__ ((__mode__ (__QI__)));
typedef int int16_t __attribute__ ((__mode__ (__HI__)));
typedef int int32_t __attribute__ ((__mode__ (__SI__)));
typedef int int64_t __attribute__ ((__mode__ (__DI__)));


typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));

typedef int register_t __attribute__ ((__mode__ (__word__)));
# 216 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 36 "/usr/include/endian.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/endian.h" 1 3 4
# 37 "/usr/include/endian.h" 2 3 4
# 60 "/usr/include/endian.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 1 3 4
# 28 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 29 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 2 3 4






# 1 "/usr/include/x86_64-linux-gnu/bits/byteswap-16.h" 1 3 4
# 36 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 2 3 4
# 44 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 3 4
static __inline unsigned int
__bswap_32 (unsigned int __bsx)
{
  return __builtin_bswap32 (__bsx);
}
# 108 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 3 4
static __inline __uint64_t
__bswap_64 (__uint64_t __bsx)
{
  return __builtin_bswap64 (__bsx);
}
# 61 "/usr/include/endian.h" 2 3 4
# 217 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4


# 1 "/usr/include/x86_64-linux-gnu/sys/select.h" 1 3 4
# 30 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/select.h" 1 3 4
# 22 "/usr/include/x86_64-linux-gnu/bits/select.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 23 "/usr/include/x86_64-linux-gnu/bits/select.h" 2 3 4
# 31 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4


# 1 "/usr/include/x86_64-linux-gnu/bits/sigset.h" 1 3 4
# 23 "/usr/include/x86_64-linux-gnu/bits/sigset.h" 3 4
typedef int __sig_atomic_t;




typedef struct
  {
    unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
  } __sigset_t;
# 34 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4



typedef __sigset_t sigset_t;





# 1 "/usr/include/time.h" 1 3 4
# 120 "/usr/include/time.h" 3 4
struct timespec
  {
    __time_t tv_sec;
    __syscall_slong_t tv_nsec;
  };
# 44 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4

# 1 "/usr/include/x86_64-linux-gnu/bits/time.h" 1 3 4
# 30 "/usr/include/x86_64-linux-gnu/bits/time.h" 3 4
struct timeval
  {
    __time_t tv_sec;
    __suseconds_t tv_usec;
  };
# 46 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4


typedef __suseconds_t suseconds_t;





typedef long int __fd_mask;
# 64 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
typedef struct
  {






    __fd_mask __fds_bits[1024 / (8 * (int) sizeof (__fd_mask))];


  } fd_set;






typedef __fd_mask fd_mask;
# 96 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4

# 106 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
extern int select (int __nfds, fd_set *__restrict __readfds,
     fd_set *__restrict __writefds,
     fd_set *__restrict __exceptfds,
     struct timeval *__restrict __timeout);
# 118 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
extern int pselect (int __nfds, fd_set *__restrict __readfds,
      fd_set *__restrict __writefds,
      fd_set *__restrict __exceptfds,
      const struct timespec *__restrict __timeout,
      const __sigset_t *__restrict __sigmask);
# 131 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4

# 220 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4


# 1 "/usr/include/x86_64-linux-gnu/sys/sysmacros.h" 1 3 4
# 29 "/usr/include/x86_64-linux-gnu/sys/sysmacros.h" 3 4


__extension__
extern unsigned int gnu_dev_major (unsigned long long int __dev)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
__extension__
extern unsigned int gnu_dev_minor (unsigned long long int __dev)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
__extension__
extern unsigned long long int gnu_dev_makedev (unsigned int __major,
            unsigned int __minor)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
# 63 "/usr/include/x86_64-linux-gnu/sys/sysmacros.h" 3 4

# 223 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4





typedef __blksize_t blksize_t;






typedef __blkcnt_t blkcnt_t;



typedef __fsblkcnt_t fsblkcnt_t;



typedef __fsfilcnt_t fsfilcnt_t;
# 270 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 1 3 4
# 21 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 22 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 2 3 4
# 60 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
typedef unsigned long int pthread_t;


union pthread_attr_t
{
  char __size[56];
  long int __align;
};

typedef union pthread_attr_t pthread_attr_t;





typedef struct __pthread_internal_list
{
  struct __pthread_internal_list *__prev;
  struct __pthread_internal_list *__next;
} __pthread_list_t;
# 90 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
typedef union
{
  struct __pthread_mutex_s
  {
    int __lock;
    unsigned int __count;
    int __owner;

    unsigned int __nusers;



    int __kind;

    int __spins;
    __pthread_list_t __list;
# 115 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
  } __data;
  char __size[40];
  long int __align;
} pthread_mutex_t;

typedef union
{
  char __size[4];
  int __align;
} pthread_mutexattr_t;




typedef union
{
  struct
  {
    int __lock;
    unsigned int __futex;
    __extension__ unsigned long long int __total_seq;
    __extension__ unsigned long long int __wakeup_seq;
    __extension__ unsigned long long int __woken_seq;
    void *__mutex;
    unsigned int __nwaiters;
    unsigned int __broadcast_seq;
  } __data;
  char __size[48];
  __extension__ long long int __align;
} pthread_cond_t;

typedef union
{
  char __size[4];
  int __align;
} pthread_condattr_t;



typedef unsigned int pthread_key_t;



typedef int pthread_once_t;





typedef union
{

  struct
  {
    int __lock;
    unsigned int __nr_readers;
    unsigned int __readers_wakeup;
    unsigned int __writer_wakeup;
    unsigned int __nr_readers_queued;
    unsigned int __nr_writers_queued;
    int __writer;
    int __shared;
    unsigned long int __pad1;
    unsigned long int __pad2;


    unsigned int __flags;

  } __data;
# 202 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
  char __size[56];
  long int __align;
} pthread_rwlock_t;

typedef union
{
  char __size[8];
  long int __align;
} pthread_rwlockattr_t;





typedef volatile int pthread_spinlock_t;




typedef union
{
  char __size[32];
  long int __align;
} pthread_barrier_t;

typedef union
{
  char __size[4];
  int __align;
} pthread_barrierattr_t;
# 271 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4



# 2 "t.c" 2
# 1 "/usr/include/x86_64-linux-gnu/sys/socket.h" 1 3 4
# 25 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4


# 1 "/usr/include/x86_64-linux-gnu/sys/uio.h" 1 3 4
# 26 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4



# 1 "/usr/include/x86_64-linux-gnu/bits/uio.h" 1 3 4
# 43 "/usr/include/x86_64-linux-gnu/bits/uio.h" 3 4
struct iovec
  {
    void *iov_base;
    size_t iov_len;
  };
# 30 "/usr/include/x86_64-linux-gnu/sys/uio.h" 2 3 4
# 40 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4
extern ssize_t readv (int __fd, const struct iovec *__iovec, int __count)
  ;
# 51 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4
extern ssize_t writev (int __fd, const struct iovec *__iovec, int __count)
  ;
# 66 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4
extern ssize_t preadv (int __fd, const struct iovec *__iovec, int __count,
         __off_t __offset) ;
# 78 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4
extern ssize_t pwritev (int __fd, const struct iovec *__iovec, int __count,
   __off_t __offset) ;
# 121 "/usr/include/x86_64-linux-gnu/sys/uio.h" 3 4

# 28 "/usr/include/x86_64-linux-gnu/sys/socket.h" 2 3 4

# 1 "/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h" 1 3 4
# 30 "/usr/include/x86_64-linux-gnu/sys/socket.h" 2 3 4
# 39 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/socket.h" 1 3 4
# 27 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h" 1 3 4
# 28 "/usr/include/x86_64-linux-gnu/bits/socket.h" 2 3 4





typedef __socklen_t socklen_t;




# 1 "/usr/include/x86_64-linux-gnu/bits/socket_type.h" 1 3 4
# 24 "/usr/include/x86_64-linux-gnu/bits/socket_type.h" 3 4
enum __socket_type
{
  SOCK_STREAM = 1,


  SOCK_DGRAM = 2,


  SOCK_RAW = 3,

  SOCK_RDM = 4,

  SOCK_SEQPACKET = 5,


  SOCK_DCCP = 6,

  SOCK_PACKET = 10,







  SOCK_CLOEXEC = 02000000,


  SOCK_NONBLOCK = 00004000


};
# 39 "/usr/include/x86_64-linux-gnu/bits/socket.h" 2 3 4
# 144 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/sockaddr.h" 1 3 4
# 28 "/usr/include/x86_64-linux-gnu/bits/sockaddr.h" 3 4
typedef unsigned short int sa_family_t;
# 145 "/usr/include/x86_64-linux-gnu/bits/socket.h" 2 3 4


struct sockaddr
  {
    sa_family_t sa_family;
    char sa_data[14];
  };
# 160 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
struct sockaddr_storage
  {
    sa_family_t ss_family;
    unsigned long int __ss_align;
    char __ss_padding[(128 - (2 * sizeof (unsigned long int)))];
  };



enum
  {
    MSG_OOB = 0x01,

    MSG_PEEK = 0x02,

    MSG_DONTROUTE = 0x04,






    MSG_CTRUNC = 0x08,

    MSG_PROXY = 0x10,

    MSG_TRUNC = 0x20,

    MSG_DONTWAIT = 0x40,

    MSG_EOR = 0x80,

    MSG_WAITALL = 0x100,

    MSG_FIN = 0x200,

    MSG_SYN = 0x400,

    MSG_CONFIRM = 0x800,

    MSG_RST = 0x1000,

    MSG_ERRQUEUE = 0x2000,

    MSG_NOSIGNAL = 0x4000,

    MSG_MORE = 0x8000,

    MSG_WAITFORONE = 0x10000,

    MSG_FASTOPEN = 0x20000000,


    MSG_CMSG_CLOEXEC = 0x40000000



  };




struct msghdr
  {
    void *msg_name;
    socklen_t msg_namelen;

    struct iovec *msg_iov;
    size_t msg_iovlen;

    void *msg_control;
    size_t msg_controllen;




    int msg_flags;
  };


struct cmsghdr
  {
    size_t cmsg_len;




    int cmsg_level;
    int cmsg_type;

    __extension__ unsigned char __cmsg_data [];

  };
# 270 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
          struct cmsghdr *__cmsg) __attribute__ ((__nothrow__ , __leaf__));
# 297 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
enum
  {
    SCM_RIGHTS = 0x01





  };
# 343 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/asm/socket.h" 1 3 4
# 1 "/usr/include/asm-generic/socket.h" 1 3 4



# 1 "/usr/include/x86_64-linux-gnu/asm/sockios.h" 1 3 4
# 1 "/usr/include/asm-generic/sockios.h" 1 3 4
# 1 "/usr/include/x86_64-linux-gnu/asm/sockios.h" 2 3 4
# 5 "/usr/include/asm-generic/socket.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/asm/socket.h" 2 3 4
# 344 "/usr/include/x86_64-linux-gnu/bits/socket.h" 2 3 4
# 377 "/usr/include/x86_64-linux-gnu/bits/socket.h" 3 4
struct linger
  {
    int l_onoff;
    int l_linger;
  };
# 40 "/usr/include/x86_64-linux-gnu/sys/socket.h" 2 3 4




struct osockaddr
  {
    unsigned short int sa_family;
    unsigned char sa_data[14];
  };




enum
{
  SHUT_RD = 0,

  SHUT_WR,

  SHUT_RDWR

};
# 114 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern int socket (int __domain, int __type, int __protocol) __attribute__ 
((__nothrow__ , __leaf__));





extern int socketpair (int __domain, int __type, int __protocol,
         int __fds[2]) __attribute__ ((__nothrow__ , __leaf__));


extern int bind (int __fd, const struct sockaddr * __addr, socklen_t __len)
     __attribute__ ((__nothrow__ , __leaf__));


extern int getsockname (int __fd, struct sockaddr *__restrict __addr,
   socklen_t *__restrict __len) __attribute__ ((__nothrow__ , __leaf__));
# 138 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern int connect (int __fd, const struct sockaddr * __addr, socklen_t __len);



extern int getpeername (int __fd, struct sockaddr *__restrict __addr,
   socklen_t *__restrict __len) __attribute__ ((__nothrow__ , __leaf__));






extern ssize_t send (int __fd, const void *__buf, size_t __n, int __flags);






extern ssize_t recv (int __fd, void *__buf, size_t __n, int __flags);






extern ssize_t sendto (int __fd, const void *__buf, size_t __n,
         int __flags, const struct sockaddr * __addr,
         socklen_t __addr_len);
# 175 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern ssize_t recvfrom (int __fd, void *__restrict __buf, size_t __n,
    int __flags, struct sockaddr *__restrict __addr,
    socklen_t *__restrict __addr_len);







extern ssize_t sendmsg (int __fd, const struct msghdr *__message,
   int __flags);
# 203 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern ssize_t recvmsg (int __fd, struct msghdr *__message, int __flags);
# 220 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern int getsockopt (int __fd, int __level, int __optname,
         void *__restrict __optval,
         socklen_t *__restrict __optlen) __attribute__ ((__nothrow__ , 
__leaf__));




extern int setsockopt (int __fd, int __level, int __optname,
         const void *__optval, socklen_t __optlen) __attribute__ ((__nothrow__ 
, __leaf__));





extern int listen (int __fd, int __n) __attribute__ ((__nothrow__ , __leaf__));
# 244 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern int accept (int __fd, struct sockaddr *__restrict __addr,
     socklen_t *__restrict __addr_len);
# 262 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4
extern int shutdown (int __fd, int __how) __attribute__ ((__nothrow__ , 
__leaf__));




extern int sockatmark (int __fd) __attribute__ ((__nothrow__ , __leaf__));







extern int isfdtype (int __fd, int __fdtype) __attribute__ ((__nothrow__ , 
__leaf__));
# 284 "/usr/include/x86_64-linux-gnu/sys/socket.h" 3 4

# 3 "t.c" 2
int x;
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