
    #[cfg(target_os = "freebsd")]
    pub mod os {
        pub mod common {
            pub mod posix01 {
                use types::common::c95::{c_void};
                use types::os::arch::c95::{c_char, c_int, size_t,
                                                 time_t, suseconds_t, c_long};
                use types::os::arch::c99::{uintptr_t};

                pub type pthread_t = uintptr_t;
                pub type rlim_t = i64;

                #[repr(C)]
                #[derive(Copy, Clone)] pub struct glob_t {
                    pub gl_pathc:  size_t,
                    __unused1: size_t,
                    pub gl_offs:   size_t,
                    __unused2: c_int,
                    pub gl_pathv:  *mut *mut c_char,

                    __unused3: *mut c_void,

                    __unused4: *mut c_void,
                    __unused5: *mut c_void,
                    __unused6: *mut c_void,
                    __unused7: *mut c_void,
                    __unused8: *mut c_void,
                }

                #[repr(C)]
                #[derive(Copy, Clone)] pub struct timeval {
                    pub tv_sec: time_t,
                    pub tv_usec: suseconds_t,
                }

                #[repr(C)]
                #[derive(Copy, Clone)] pub struct timespec {
                    pub tv_sec: time_t,
                    pub tv_nsec: c_long,
                }

                pub enum timezone {}

                pub type sighandler_t = size_t;

                #[repr(C)]
                #[derive(Copy, Clone)]
                pub struct rlimit {
                    pub rlim_cur: rlim_t,
                    pub rlim_max: rlim_t,
                }
            }

            pub mod bsd43 {
                use types::os::common::posix01::timeval;
                use types::os::arch::c95::c_long;
                #[repr(C)]
                #[derive(Copy, Clone)]
                pub struct rusage {
                    pub ru_utime: timeval,
                    pub ru_stime: timeval,
                    pub ru_maxrss: c_long,
                    pub ru_ixrss: c_long,
                    pub ru_idrss: c_long,
                    pub ru_isrss: c_long,
                    pub ru_minflt: c_long,
                    pub ru_majflt: c_long,
                    pub ru_nswap: c_long,
                    pub ru_inblock: c_long,
                    pub ru_oublock: c_long,
                    pub ru_msgsnd: c_long,
                    pub ru_msgrcv: c_long,
                    pub ru_nsignals: c_long,
                    pub ru_nvcsw: c_long,
                    pub ru_nivcsw: c_long
                }
            }

            pub mod bsd44 {
                use types::common::c95::{c_void};
                use types::os::arch::c95::{c_char, c_int, c_uint};

                pub type socklen_t = u32;
                pub type sa_family_t = u8;
                pub type in_port_t = u16;
                pub type in_addr_t = u32;
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct sockaddr {
                    pub sa_len: u8,
                    pub sa_family: sa_family_t,
                    pub sa_data: [u8; 14],
                }
                #[repr(C)]
                #[derive(Copy)] pub struct sockaddr_storage {
                    pub ss_len: u8,
                    pub ss_family: sa_family_t,
                    __ss_pad1: [u8; 6],
                    __ss_align: i64,
                    __ss_pad2: [u8; 112],
                }
                impl Clone for sockaddr_storage {
                    fn clone(&self) -> sockaddr_storage { *self }
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct sockaddr_in {
                    pub sin_len: u8,
                    pub sin_family: sa_family_t,
                    pub sin_port: in_port_t,
                    pub sin_addr: in_addr,
                    pub sin_zero: [u8; 8],
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct in_addr {
                    pub s_addr: in_addr_t,
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct sockaddr_in6 {
                    pub sin6_len: u8,
                    pub sin6_family: sa_family_t,
                    pub sin6_port: in_port_t,
                    pub sin6_flowinfo: u32,
                    pub sin6_addr: in6_addr,
                    pub sin6_scope_id: u32,
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct in6_addr {
                    pub s6_addr: [u16; 8],
                    __align: [u32; 0],
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct ip_mreq {
                    pub imr_multiaddr: in_addr,
                    pub imr_interface: in_addr,
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct ipv6_mreq {
                    pub ipv6mr_multiaddr: in6_addr,
                    pub ipv6mr_interface: c_uint,
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct addrinfo {
                    pub ai_flags: c_int,
                    pub ai_family: c_int,
                    pub ai_socktype: c_int,
                    pub ai_protocol: c_int,
                    pub ai_addrlen: socklen_t,
                    pub ai_canonname: *mut c_char,
                    pub ai_addr: *mut sockaddr,
                    pub ai_next: *mut addrinfo,
                }
                #[repr(C)]
                #[derive(Copy)] pub struct sockaddr_un {
                    pub sun_len: u8,
                    pub sun_family: sa_family_t,
                    pub sun_path: [c_char; 104]
                }
                impl Clone for sockaddr_un {
                    fn clone(&self) -> sockaddr_un { *self }
                }
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct ifaddrs {
                    pub ifa_next: *mut ifaddrs,
                    pub ifa_name: *mut c_char,
                    pub ifa_flags: c_uint,
                    pub ifa_addr: *mut sockaddr,
                    pub ifa_netmask: *mut sockaddr,
                    pub ifa_dstaddr: *mut sockaddr,
                    pub ifa_data: *mut c_void
                }


            }
        }

        #[cfg(target_arch = "x86")]
        pub mod arch {
            pub mod c95 {
                pub type c_char = i8;
                pub type c_schar = i8;
                pub type c_uchar = u8;
                pub type c_short = i16;
                pub type c_ushort = u16;
                pub type c_int = i32;
                pub type c_uint = u32;
                pub type c_long = i32;
                pub type c_ulong = u32;
                pub type c_float = f32;
                pub type c_double = f64;
                pub type size_t = u32;
                pub type ptrdiff_t = i32;
                pub type clock_t = i32;
                pub type time_t = i32;
                pub type suseconds_t = i32;
                pub type wchar_t = i32;
            }
            pub mod c99 {
                pub type c_longlong = i64;
                pub type c_ulonglong = u64;
                pub type intptr_t = i32;
                pub type uintptr_t = u32;
                pub type intmax_t = i64;
                pub type uintmax_t = u64;
            }
            pub mod posix88 {
                pub type off_t = i64;
                pub type dev_t = u32;
                pub type ino_t = u32;
                pub type pid_t = i32;
                pub type uid_t = u32;
                pub type gid_t = u32;
                pub type useconds_t = u32;
                pub type mode_t = u16;
                pub type ssize_t = i32;
            }
            pub mod posix01 {
                use types::common::c95::{c_void};
                use types::common::c99::{uint32_t, int32_t};
                use types::os::arch::c95::{c_long, time_t};
                use types::os::arch::posix88::{dev_t, gid_t, ino_t};
                use types::os::arch::posix88::{mode_t, off_t};
                use types::os::arch::posix88::{uid_t};

                pub type nlink_t = u16;
                pub type blksize_t = u32;
                pub type blkcnt_t = i64;
                pub type fflags_t = u32;
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct stat {
                    pub st_dev: dev_t,
                    pub st_ino: ino_t,
                    pub st_mode: mode_t,
                    pub st_nlink: nlink_t,
                    pub st_uid: uid_t,
                    pub st_gid: gid_t,
                    pub st_rdev: dev_t,
                    pub st_atime: time_t,
                    pub st_atime_nsec: c_long,
                    pub st_mtime: time_t,
                    pub st_mtime_nsec: c_long,
                    pub st_ctime: time_t,
                    pub st_ctime_nsec: c_long,
                    pub st_size: off_t,
                    pub st_blocks: blkcnt_t,
                    pub st_blksize: blksize_t,
                    pub st_flags: fflags_t,
                    pub st_gen: uint32_t,
                    pub st_lspare: int32_t,
                    pub st_birthtime: time_t,
                    pub st_birthtime_nsec: c_long,
                    __unused: [u8; 8],
                }

                #[repr(C)]
                #[derive(Copy, Clone)] pub struct utimbuf {
                    pub actime: time_t,
                    pub modtime: time_t,
                }

                pub type pthread_attr_t = *mut c_void;
            }
            pub mod posix08 {
            }
            pub mod bsd44 {
            }
            pub mod extra {
            }
        }

        #[cfg(target_arch = "x86_64")]
        pub mod arch {
            pub mod c95 {
                pub type c_char = i8;
                pub type c_schar = i8;
                pub type c_uchar = u8;
                pub type c_short = i16;
                pub type c_ushort = u16;
                pub type c_int = i32;
                pub type c_uint = u32;
                pub type c_long = i64;
                pub type c_ulong = u64;
                pub type c_float = f32;
                pub type c_double = f64;
                pub type size_t = u64;
                pub type ptrdiff_t = i64;
                pub type clock_t = i32;
                pub type time_t = i64;
                pub type suseconds_t = i64;
                pub type wchar_t = i32;
            }
            pub mod c99 {
                pub type c_longlong = i64;
                pub type c_ulonglong = u64;
                pub type intptr_t = i64;
                pub type uintptr_t = u64;
                pub type intmax_t = i64;
                pub type uintmax_t = u64;
            }
            pub mod posix88 {
                pub type off_t = i64;
                pub type dev_t = u32;
                pub type ino_t = u32;
                pub type pid_t = i32;
                pub type uid_t = u32;
                pub type gid_t = u32;
                pub type useconds_t = u32;
                pub type mode_t = u16;
                pub type ssize_t = i64;
            }
            pub mod posix01 {
                use types::common::c95::{c_void};
                use types::common::c99::{uint32_t, int32_t};
                use types::os::arch::c95::{c_long, time_t};
                use types::os::arch::posix88::{dev_t, gid_t, ino_t};
                use types::os::arch::posix88::{mode_t, off_t};
                use types::os::arch::posix88::{uid_t};

                pub type nlink_t = u16;
                pub type blksize_t = u32;
                pub type blkcnt_t = i64;
                pub type fflags_t = u32;
                #[repr(C)]
                #[derive(Copy, Clone)] pub struct stat {
                    pub st_dev: dev_t,
                    pub st_ino: ino_t,
                    pub st_mode: mode_t,
                    pub st_nlink: nlink_t,
                    pub st_uid: uid_t,
                    pub st_gid: gid_t,
                    pub st_rdev: dev_t,
                    pub st_atime: time_t,
                    pub st_atime_nsec: c_long,
                    pub st_mtime: time_t,
                    pub st_mtime_nsec: c_long,
                    pub st_ctime: time_t,
                    pub st_ctime_nsec: c_long,
                    pub st_size: off_t,
                    pub st_blocks: blkcnt_t,
                    pub st_blksize: blksize_t,
                    pub st_flags: fflags_t,
                    pub st_gen: uint32_t,
                    pub st_lspare: int32_t,
                    pub st_birthtime: time_t,
                    pub st_birthtime_nsec: c_long,
                }

                #[repr(C)]
                #[derive(Copy, Clone)] pub struct utimbuf {
                    pub actime: time_t,
                    pub modtime: time_t,
                }

                pub type pthread_attr_t = *mut c_void;
            }
            pub mod posix08 {
            }
            pub mod bsd44 {
            }
            pub mod extra {
            }
        }
    }
    #[cfg(any(target_os = "freebsd",
              target_os = "dragonfly"))]
    pub mod os {
        pub mod c95 {
            use types::os::arch::c95::{c_int, c_uint};

            pub const EXIT_FAILURE : c_int = 1;
            pub const EXIT_SUCCESS : c_int = 0;
            pub const RAND_MAX : c_int = 2147483647;
            pub const EOF : c_int = -1;
            pub const SEEK_SET : c_int = 0;
            pub const SEEK_CUR : c_int = 1;
            pub const SEEK_END : c_int = 2;
            pub const _IOFBF : c_int = 0;
            pub const _IONBF : c_int = 2;
            pub const _IOLBF : c_int = 1;
            pub const BUFSIZ : c_uint = 1024;
            pub const FOPEN_MAX : c_uint = 20;
            pub const FILENAME_MAX : c_uint = 1024;
            pub const L_tmpnam : c_uint = 1024;
            pub const TMP_MAX : c_uint = 308915776;
        }
        pub mod c99 {
        }
        pub mod posix88 {
            use types::common::c95::c_void;
            use types::os::arch::c95::c_int;
            use types::os::arch::posix88::mode_t;

            pub const O_RDONLY : c_int = 0;
            pub const O_WRONLY : c_int = 1;
            pub const O_RDWR : c_int = 2;
            pub const O_APPEND : c_int = 8;
            pub const O_CREAT : c_int = 512;
            pub const O_EXCL : c_int = 2048;
            pub const O_NOCTTY : c_int = 32768;
            pub const O_TRUNC : c_int = 1024;
            pub const S_IFIFO : mode_t = 4096;
            pub const S_IFCHR : mode_t = 8192;
            pub const S_IFBLK : mode_t = 24576;
            pub const S_IFDIR : mode_t = 16384;
            pub const S_IFREG : mode_t = 32768;
            pub const S_IFLNK : mode_t = 40960;
            pub const S_IFSOCK : mode_t = 49152;
            pub const S_IFMT : mode_t = 61440;
            pub const S_IEXEC : mode_t = 64;
            pub const S_IWRITE : mode_t = 128;
            pub const S_IREAD : mode_t = 256;
            pub const S_IRWXU : mode_t = 448;
            pub const S_IXUSR : mode_t = 64;
            pub const S_IWUSR : mode_t = 128;
            pub const S_IRUSR : mode_t = 256;
            pub const S_IRWXG : mode_t = 56;
            pub const S_IXGRP : mode_t = 8;
            pub const S_IWGRP : mode_t = 16;
            pub const S_IRGRP : mode_t = 32;
            pub const S_IRWXO : mode_t = 7;
            pub const S_IXOTH : mode_t = 1;
            pub const S_IWOTH : mode_t = 2;
            pub const S_IROTH : mode_t = 4;
            pub const F_OK : c_int = 0;
            pub const R_OK : c_int = 4;
            pub const W_OK : c_int = 2;
            pub const X_OK : c_int = 1;
            pub const STDIN_FILENO : c_int = 0;
            pub const STDOUT_FILENO : c_int = 1;
            pub const STDERR_FILENO : c_int = 2;
            pub const F_LOCK : c_int = 1;
            pub const F_TEST : c_int = 3;
            pub const F_TLOCK : c_int = 2;
            pub const F_ULOCK : c_int = 0;
            pub const SIGHUP : c_int = 1;
            pub const SIGINT : c_int = 2;
            pub const SIGQUIT : c_int = 3;
            pub const SIGILL : c_int = 4;
            pub const SIGABRT : c_int = 6;
            pub const SIGFPE : c_int = 8;
            pub const SIGKILL : c_int = 9;
            pub const SIGSEGV : c_int = 11;
            pub const SIGPIPE : c_int = 13;
            pub const SIGALRM : c_int = 14;
            pub const SIGTERM : c_int = 15;

            pub const PROT_NONE : c_int = 0;
            pub const PROT_READ : c_int = 1;
            pub const PROT_WRITE : c_int = 2;
            pub const PROT_EXEC : c_int = 4;

            pub const MAP_FILE : c_int = 0x0000;
            pub const MAP_SHARED : c_int = 0x0001;
            pub const MAP_PRIVATE : c_int = 0x0002;
            pub const MAP_FIXED : c_int = 0x0010;
            pub const MAP_ANON : c_int = 0x1000;

            pub const MAP_FAILED : *mut c_void = !0 as *mut c_void;

            pub const MCL_CURRENT : c_int = 0x0001;
            pub const MCL_FUTURE : c_int = 0x0002;

            pub const MS_SYNC : c_int = 0x0000;
            pub const MS_ASYNC : c_int = 0x0001;
            pub const MS_INVALIDATE : c_int = 0x0002;

            pub const EPERM : c_int = 1;
            pub const ENOENT : c_int = 2;
            pub const ESRCH : c_int = 3;
            pub const EINTR : c_int = 4;
            pub const EIO : c_int = 5;
            pub const ENXIO : c_int = 6;
            pub const E2BIG : c_int = 7;
            pub const ENOEXEC : c_int = 8;
            pub const EBADF : c_int = 9;
            pub const ECHILD : c_int = 10;
            pub const EDEADLK : c_int = 11;
            pub const ENOMEM : c_int = 12;
            pub const EACCES : c_int = 13;
            pub const EFAULT : c_int = 14;
            pub const ENOTBLK : c_int = 15;
            pub const EBUSY : c_int = 16;
            pub const EEXIST : c_int = 17;
            pub const EXDEV : c_int = 18;
            pub const ENODEV : c_int = 19;
            pub const ENOTDIR : c_int = 20;
            pub const EISDIR : c_int = 21;
            pub const EINVAL : c_int = 22;
            pub const ENFILE : c_int = 23;
            pub const EMFILE : c_int = 24;
            pub const ENOTTY : c_int = 25;
            pub const ETXTBSY : c_int = 26;
            pub const EFBIG : c_int = 27;
            pub const ENOSPC : c_int = 28;
            pub const ESPIPE : c_int = 29;
            pub const EROFS : c_int = 30;
            pub const EMLINK : c_int = 31;
            pub const EPIPE : c_int = 32;
            pub const EDOM : c_int = 33;
            pub const ERANGE : c_int = 34;
            pub const EAGAIN : c_int = 35;
            pub const EWOULDBLOCK : c_int = 35;
            pub const EINPROGRESS : c_int = 36;
            pub const EALREADY : c_int = 37;
            pub const ENOTSOCK : c_int = 38;
            pub const EDESTADDRREQ : c_int = 39;
            pub const EMSGSIZE : c_int = 40;
            pub const EPROTOTYPE : c_int = 41;
            pub const ENOPROTOOPT : c_int = 42;
            pub const EPROTONOSUPPORT : c_int = 43;
            pub const ESOCKTNOSUPPORT : c_int = 44;
            pub const EOPNOTSUPP : c_int = 45;
            pub const EPFNOSUPPORT : c_int = 46;
            pub const EAFNOSUPPORT : c_int = 47;
            pub const EADDRINUSE : c_int = 48;
            pub const EADDRNOTAVAIL : c_int = 49;
            pub const ENETDOWN : c_int = 50;
            pub const ENETUNREACH : c_int = 51;
            pub const ENETRESET : c_int = 52;
            pub const ECONNABORTED : c_int = 53;
            pub const ECONNRESET : c_int = 54;
            pub const ENOBUFS : c_int = 55;
            pub const EISCONN : c_int = 56;
            pub const ENOTCONN : c_int = 57;
            pub const ESHUTDOWN : c_int = 58;
            pub const ETOOMANYREFS : c_int = 59;
            pub const ETIMEDOUT : c_int = 60;
            pub const ECONNREFUSED : c_int = 61;
            pub const ELOOP : c_int = 62;
            pub const ENAMETOOLONG : c_int = 63;
            pub const EHOSTDOWN : c_int = 64;
            pub const EHOSTUNREACH : c_int = 65;
            pub const ENOTEMPTY : c_int = 66;
            pub const EPROCLIM : c_int = 67;
            pub const EUSERS : c_int = 68;
            pub const EDQUOT : c_int = 69;
            pub const ESTALE : c_int = 70;
            pub const EREMOTE : c_int = 71;
            pub const EBADRPC : c_int = 72;
            pub const ERPCMISMATCH : c_int = 73;
            pub const EPROGUNAVAIL : c_int = 74;
            pub const EPROGMISMATCH : c_int = 75;
            pub const EPROCUNAVAIL : c_int = 76;
            pub const ENOLCK : c_int = 77;
            pub const ENOSYS : c_int = 78;
            pub const EFTYPE : c_int = 79;
            pub const EAUTH : c_int = 80;
            pub const ENEEDAUTH : c_int = 81;
            pub const EIDRM : c_int = 82;
            pub const ENOMSG : c_int = 83;
            pub const EOVERFLOW : c_int = 84;
            pub const ECANCELED : c_int = 85;
            pub const EILSEQ : c_int = 86;
            pub const ENOATTR : c_int = 87;
            pub const EDOOFUS : c_int = 88;
            pub const EBADMSG : c_int = 89;
            pub const EMULTIHOP : c_int = 90;
            pub const ENOLINK : c_int = 91;
            pub const EPROTO : c_int = 92;
            pub const ENOMEDIUM : c_int = 93;
            pub const EUNUSED94 : c_int = 94;
            pub const EUNUSED95 : c_int = 95;
            pub const EUNUSED96 : c_int = 96;
            pub const EUNUSED97 : c_int = 97;
            pub const EUNUSED98 : c_int = 98;
            pub const EASYNC : c_int = 99;
            pub const ELAST : c_int = 99;
        }
        pub mod posix01 {
            use types::os::arch::c95::{c_int, size_t};
            use types::os::common::posix01::rlim_t;

            pub const F_DUPFD : c_int = 0;
            pub const F_GETFD : c_int = 1;
            pub const F_SETFD : c_int = 2;
            pub const F_GETFL : c_int = 3;
            pub const F_SETFL : c_int = 4;

            pub const SIGTRAP : c_int = 5;
            pub const SIG_IGN: size_t = 1;

            pub const GLOB_APPEND   : c_int = 0x0001;
            pub const GLOB_DOOFFS   : c_int = 0x0002;
            pub const GLOB_ERR      : c_int = 0x0004;
            pub const GLOB_MARK     : c_int = 0x0008;
            pub const GLOB_NOCHECK  : c_int = 0x0010;
            pub const GLOB_NOSORT   : c_int = 0x0020;
            pub const GLOB_NOESCAPE : c_int = 0x2000;

            pub const GLOB_NOSPACE  : c_int = -1;
            pub const GLOB_ABORTED  : c_int = -2;
            pub const GLOB_NOMATCH  : c_int = -3;

            pub const POSIX_MADV_NORMAL : c_int = 0;
            pub const POSIX_MADV_RANDOM : c_int = 1;
            pub const POSIX_MADV_SEQUENTIAL : c_int = 2;
            pub const POSIX_MADV_WILLNEED : c_int = 3;
            pub const POSIX_MADV_DONTNEED : c_int = 4;

            pub const _SC_IOV_MAX : c_int = 56;
            pub const _SC_GETGR_R_SIZE_MAX : c_int = 70;
            pub const _SC_GETPW_R_SIZE_MAX : c_int = 71;
            pub const _SC_LOGIN_NAME_MAX : c_int = 73;
            pub const _SC_MQ_PRIO_MAX : c_int = 75;
            pub const _SC_THREAD_ATTR_STACKADDR : c_int = 82;
            pub const _SC_THREAD_ATTR_STACKSIZE : c_int = 83;
            pub const _SC_THREAD_DESTRUCTOR_ITERATIONS : c_int = 85;
            pub const _SC_THREAD_KEYS_MAX : c_int = 86;
            pub const _SC_THREAD_PRIO_INHERIT : c_int = 87;
            pub const _SC_THREAD_PRIO_PROTECT : c_int = 88;
            pub const _SC_THREAD_PRIORITY_SCHEDULING : c_int = 89;
            pub const _SC_THREAD_PROCESS_SHARED : c_int = 90;
            pub const _SC_THREAD_SAFE_FUNCTIONS : c_int = 91;
            pub const _SC_THREAD_STACK_MIN : c_int = 93;
            pub const _SC_THREAD_THREADS_MAX : c_int = 94;
            pub const _SC_THREADS : c_int = 96;
            pub const _SC_TTY_NAME_MAX : c_int = 101;
            pub const _SC_ATEXIT_MAX : c_int = 107;
            pub const _SC_XOPEN_CRYPT : c_int = 108;
            pub const _SC_XOPEN_ENH_I18N : c_int = 109;
            pub const _SC_XOPEN_LEGACY : c_int = 110;
            pub const _SC_XOPEN_REALTIME : c_int = 111;
            pub const _SC_XOPEN_REALTIME_THREADS : c_int = 112;
            pub const _SC_XOPEN_SHM : c_int = 113;
            pub const _SC_XOPEN_UNIX : c_int = 115;
            pub const _SC_XOPEN_VERSION : c_int = 116;
            pub const _SC_XOPEN_XCU_VERSION : c_int = 117;

            pub const PTHREAD_CREATE_JOINABLE: c_int = 0;
            pub const PTHREAD_CREATE_DETACHED: c_int = 1;

            #[cfg(target_arch = "arm")]
            pub const PTHREAD_STACK_MIN: size_t = 4096;

            #[cfg(all(target_os = "freebsd",
                      any(target_arch = "mips",
                          target_arch = "mipsel",
                          target_arch = "x86",
                          target_arch = "x86_64")))]
            pub const PTHREAD_STACK_MIN: size_t = 2048;

            #[cfg(target_os = "dragonfly")]
            pub const PTHREAD_STACK_MIN: size_t = 1024;

            pub const CLOCK_REALTIME: c_int = 0;
            pub const CLOCK_MONOTONIC: c_int = 4;

            pub const RLIMIT_CPU: c_int = 0;
            pub const RLIMIT_FSIZE: c_int = 1;
            pub const RLIMIT_DATA: c_int = 2;
            pub const RLIMIT_STACK: c_int = 3;
            pub const RLIMIT_CORE: c_int = 4;
            pub const RLIMIT_RSS: c_int = 5;
            pub const RLIMIT_MEMLOCK: c_int = 6;
            pub const RLIMIT_NPROC: c_int = 7;
            pub const RLIMIT_NOFILE: c_int = 8;
            pub const RLIMIT_SBSIZE: c_int = 9;
            pub const RLIMIT_VMEM: c_int = 10;
            pub const RLIMIT_AS: c_int = RLIMIT_VMEM;
            pub const RLIMIT_NPTS: c_int = 11;
            pub const RLIMIT_SWAP: c_int = 12;
            pub const RLIMIT_KQUEUES: c_int = 13;

            pub const RLIM_NLIMITS: rlim_t = 14;
            pub const RLIM_INFINITY: rlim_t = 0x7fff_ffff_ffff_ffff;

            pub const RUSAGE_SELF: c_int = 0;
            pub const RUSAGE_CHILDREN: c_int = -1;
            pub const RUSAGE_THREAD: c_int = 1;
        }
        pub mod posix08 {
        }
        pub mod bsd44 {
            use types::os::arch::c95::c_int;

            pub const MADV_NORMAL : c_int = 0;
            pub const MADV_RANDOM : c_int = 1;
            pub const MADV_SEQUENTIAL : c_int = 2;
            pub const MADV_WILLNEED : c_int = 3;
            pub const MADV_DONTNEED : c_int = 4;
            pub const MADV_FREE : c_int = 5;
            pub const MADV_NOSYNC : c_int = 6;
            pub const MADV_AUTOSYNC : c_int = 7;
            pub const MADV_NOCORE : c_int = 8;
            pub const MADV_CORE : c_int = 9;
            pub const MADV_PROTECT : c_int = 10;

            pub const MINCORE_INCORE : c_int =  0x1;
            pub const MINCORE_REFERENCED : c_int = 0x2;
            pub const MINCORE_MODIFIED : c_int = 0x4;
            pub const MINCORE_REFERENCED_OTHER : c_int = 0x8;
            pub const MINCORE_MODIFIED_OTHER : c_int = 0x10;
            pub const MINCORE_SUPER : c_int = 0x20;

            pub const AF_INET: c_int = 2;
            pub const AF_INET6: c_int = 28;
            pub const AF_UNIX: c_int = 1;
            pub const SOCK_STREAM: c_int = 1;
            pub const SOCK_DGRAM: c_int = 2;
            pub const SOCK_RAW: c_int = 3;
            pub const IPPROTO_TCP: c_int = 6;
            pub const IPPROTO_IP: c_int = 0;
            pub const IPPROTO_IPV6: c_int = 41;
            pub const IP_MULTICAST_TTL: c_int = 10;
            pub const IP_MULTICAST_LOOP: c_int = 11;
            pub const IP_TTL: c_int = 4;
            pub const IP_HDRINCL: c_int = 2;
            pub const IP_ADD_MEMBERSHIP: c_int = 12;
            pub const IP_DROP_MEMBERSHIP: c_int = 13;
            pub const IPV6_ADD_MEMBERSHIP: c_int = 12;
            pub const IPV6_DROP_MEMBERSHIP: c_int = 13;

            pub const TCP_NODELAY: c_int = 1;
            pub const TCP_KEEPIDLE: c_int = 256;
            pub const SOL_SOCKET: c_int = 0xffff;
            pub const SO_DEBUG: c_int = 0x01;
            pub const SO_ACCEPTCONN: c_int = 0x0002;
            pub const SO_REUSEADDR: c_int = 0x0004;
            pub const SO_KEEPALIVE: c_int = 0x0008;
            pub const SO_DONTROUTE: c_int = 0x0010;
            pub const SO_BROADCAST: c_int = 0x0020;
            pub const SO_USELOOPBACK: c_int = 0x0040;
            pub const SO_LINGER: c_int = 0x0080;
            pub const SO_OOBINLINE: c_int = 0x0100;
            pub const SO_REUSEPORT: c_int = 0x0200;
            pub const SO_SNDBUF: c_int = 0x1001;
            pub const SO_RCVBUF: c_int = 0x1002;
            pub const SO_SNDLOWAT: c_int = 0x1003;
            pub const SO_RCVLOWAT: c_int = 0x1004;
            pub const SO_SNDTIMEO: c_int = 0x1005;
            pub const SO_RCVTIMEO: c_int = 0x1006;
            pub const SO_ERROR: c_int = 0x1007;
            pub const SO_TYPE: c_int = 0x1008;

            pub const IFF_LOOPBACK: c_int = 0x8;

            pub const SHUT_RD: c_int = 0;
            pub const SHUT_WR: c_int = 1;
            pub const SHUT_RDWR: c_int = 2;

            pub const LOCK_SH: c_int = 1;
            pub const LOCK_EX: c_int = 2;
            pub const LOCK_NB: c_int = 4;
            pub const LOCK_UN: c_int = 8;
        }
        pub mod extra {
            use types::os::arch::c95::c_int;

            pub const O_SYNC : c_int = 128;
            pub const O_NONBLOCK : c_int = 4;
            pub const CTL_KERN: c_int = 1;
            pub const KERN_PROC: c_int = 14;
            #[cfg(target_os = "freebsd")]
            pub const KERN_PROC_PATHNAME: c_int = 12;
            #[cfg(target_os = "dragonfly")]
            pub const KERN_PROC_PATHNAME: c_int = 9;

            pub const MAP_COPY : c_int = 0x0002;
            pub const MAP_RENAME : c_int = 0x0020;
            pub const MAP_NORESERVE : c_int = 0x0040;
            pub const MAP_HASSEMAPHORE : c_int = 0x0200;
            pub const MAP_STACK : c_int = 0x0400;
            pub const MAP_NOSYNC : c_int = 0x0800;
            pub const MAP_NOCORE : c_int = 0x020000;

            pub const IPPROTO_RAW : c_int = 255;
        }
        pub mod sysconf {
            use types::os::arch::c95::c_int;

            pub const _SC_ARG_MAX : c_int = 1;
            pub const _SC_CHILD_MAX : c_int = 2;
            pub const _SC_CLK_TCK : c_int = 3;
            pub const _SC_NGROUPS_MAX : c_int = 4;
            pub const _SC_OPEN_MAX : c_int = 5;
            pub const _SC_JOB_CONTROL : c_int = 6;
            pub const _SC_SAVED_IDS : c_int = 7;
            pub const _SC_VERSION : c_int = 8;
            pub const _SC_BC_BASE_MAX : c_int = 9;
            pub const _SC_BC_DIM_MAX : c_int = 10;
            pub const _SC_BC_SCALE_MAX : c_int = 11;
            pub const _SC_BC_STRING_MAX : c_int = 12;
            pub const _SC_COLL_WEIGHTS_MAX : c_int = 13;
            pub const _SC_EXPR_NEST_MAX : c_int = 14;
            pub const _SC_LINE_MAX : c_int = 15;
            pub const _SC_RE_DUP_MAX : c_int = 16;
            pub const _SC_2_VERSION : c_int = 17;
            pub const _SC_2_C_BIND : c_int = 18;
            pub const _SC_2_C_DEV : c_int = 19;
            pub const _SC_2_CHAR_TERM : c_int = 20;
            pub const _SC_2_FORT_DEV : c_int = 21;
            pub const _SC_2_FORT_RUN : c_int = 22;
            pub const _SC_2_LOCALEDEF : c_int = 23;
            pub const _SC_2_SW_DEV : c_int = 24;
            pub const _SC_2_UPE : c_int = 25;
            pub const _SC_STREAM_MAX : c_int = 26;
            pub const _SC_TZNAME_MAX : c_int = 27;
            pub const _SC_ASYNCHRONOUS_IO : c_int = 28;
            pub const _SC_MAPPED_FILES : c_int = 29;
            pub const _SC_MEMLOCK : c_int = 30;
            pub const _SC_MEMLOCK_RANGE : c_int = 31;
            pub const _SC_MEMORY_PROTECTION : c_int = 32;
            pub const _SC_MESSAGE_PASSING : c_int = 33;
            pub const _SC_PRIORITIZED_IO : c_int = 34;
            pub const _SC_PRIORITY_SCHEDULING : c_int = 35;
            pub const _SC_REALTIME_SIGNALS : c_int = 36;
            pub const _SC_SEMAPHORES : c_int = 37;
            pub const _SC_FSYNC : c_int = 38;
            pub const _SC_SHARED_MEMORY_OBJECTS : c_int = 39;
            pub const _SC_SYNCHRONIZED_IO : c_int = 40;
            pub const _SC_TIMERS : c_int = 41;
            pub const _SC_AIO_LISTIO_MAX : c_int = 42;
            pub const _SC_AIO_MAX : c_int = 43;
            pub const _SC_AIO_PRIO_DELTA_MAX : c_int = 44;
            pub const _SC_DELAYTIMER_MAX : c_int = 45;
            pub const _SC_MQ_OPEN_MAX : c_int = 46;
            pub const _SC_PAGESIZE : c_int = 47;
            pub const _SC_RTSIG_MAX : c_int = 48;
            pub const _SC_SEM_NSEMS_MAX : c_int = 49;
            pub const _SC_SEM_VALUE_MAX : c_int = 50;
            pub const _SC_SIGQUEUE_MAX : c_int = 51;
            pub const _SC_TIMER_MAX : c_int = 52;
        }
    }