Remove Rust from the tree.

Part 4 for #58

1 files changed, 0 insertions, 851 deletions

diff --git a/third_party/rust/libc/src/unix/mod.rs b/third_party/rust/libc/src/unix/mod.rs
deleted file mode 100644
index 648a7aa6f..000000000
--- a/third_party/rust/libc/src/unix/mod.rs
+++ /dev/null
@@ -1,851 +0,0 @@
-//! Definitions found commonly among almost all Unix derivatives
-//!
-//! More functions and definitions can be found in the more specific modules
-//! according to the platform in question.
-
-use dox::Option;
-
-pub type pid_t = i32;
-pub type uid_t = u32;
-pub type gid_t = u32;
-pub type in_addr_t = u32;
-pub type in_port_t = u16;
-pub type sighandler_t = ::size_t;
-pub type cc_t = ::c_uchar;
-
-pub enum DIR {}
-pub enum locale_t {}
-
-s! {
-    pub struct group {
-        pub gr_name: *mut ::c_char,
-        pub gr_passwd: *mut ::c_char,
-        pub gr_gid: ::gid_t,
-        pub gr_mem: *mut *mut ::c_char,
-    }
-
-    pub struct utimbuf {
-        pub actime: time_t,
-        pub modtime: time_t,
-    }
-
-    pub struct timeval {
-        pub tv_sec: time_t,
-        pub tv_usec: suseconds_t,
-    }
-
-    pub struct timespec {
-        pub tv_sec: time_t,
-        pub tv_nsec: c_long,
-    }
-
-    pub struct rlimit {
-        pub rlim_cur: rlim_t,
-        pub rlim_max: rlim_t,
-    }
-
-    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,
-
-        #[cfg(any(target_env = "musl"))]
-        __reserved: [c_long; 16],
-    }
-
-    #[cfg_attr(target_os = "netbsd", repr(packed))]
-    pub struct in_addr {
-        pub s_addr: in_addr_t,
-    }
-
-    pub struct in6_addr {
-        pub s6_addr: [u8; 16],
-        __align: [u32; 0],
-    }
-
-    pub struct ip_mreq {
-        pub imr_multiaddr: in_addr,
-        pub imr_interface: in_addr,
-    }
-
-    pub struct ipv6_mreq {
-        pub ipv6mr_multiaddr: in6_addr,
-        #[cfg(target_os = "android")]
-        pub ipv6mr_interface: ::c_int,
-        #[cfg(not(target_os = "android"))]
-        pub ipv6mr_interface: ::c_uint,
-    }
-
-    pub struct hostent {
-        pub h_name: *mut ::c_char,
-        pub h_aliases: *mut *mut ::c_char,
-        pub h_addrtype: ::c_int,
-        pub h_length: ::c_int,
-        pub h_addr_list: *mut *mut ::c_char,
-    }
-
-    pub struct iovec {
-        pub iov_base: *mut ::c_void,
-        pub iov_len: ::size_t,
-    }
-
-    pub struct pollfd {
-        pub fd: ::c_int,
-        pub events: ::c_short,
-        pub revents: ::c_short,
-    }
-
-    pub struct winsize {
-        pub ws_row: ::c_ushort,
-        pub ws_col: ::c_ushort,
-        pub ws_xpixel: ::c_ushort,
-        pub ws_ypixel: ::c_ushort,
-    }
-
-    pub struct linger {
-        pub l_onoff: ::c_int,
-        pub l_linger: ::c_int,
-    }
-}
-
-pub const SIG_DFL: sighandler_t = 0 as sighandler_t;
-pub const SIG_IGN: sighandler_t = 1 as sighandler_t;
-pub const SIG_ERR: sighandler_t = !0 as sighandler_t;
-
-pub const DT_FIFO: u8 = 1;
-pub const DT_CHR: u8 = 2;
-pub const DT_DIR: u8 = 4;
-pub const DT_BLK: u8 = 6;
-pub const DT_REG: u8 = 8;
-pub const DT_LNK: u8 = 10;
-pub const DT_SOCK: u8 = 12;
-
-pub const FD_CLOEXEC: ::c_int = 0x1;
-
-pub const USRQUOTA: ::c_int = 0;
-pub const GRPQUOTA: ::c_int = 1;
-
-pub const SIGIOT: ::c_int = 6;
-
-pub const S_ISUID: ::c_int = 0x800;
-pub const S_ISGID: ::c_int = 0x400;
-pub const S_ISVTX: ::c_int = 0x200;
-
-pub const POLLIN: ::c_short = 0x1;
-pub const POLLPRI: ::c_short = 0x2;
-pub const POLLOUT: ::c_short = 0x4;
-pub const POLLERR: ::c_short = 0x8;
-pub const POLLHUP: ::c_short = 0x10;
-pub const POLLNVAL: ::c_short = 0x20;
-
-pub const IF_NAMESIZE: ::size_t = 16;
-
-pub const RTLD_LAZY: ::c_int = 0x1;
-
-pub const LOG_EMERG: ::c_int = 0;
-pub const LOG_ALERT: ::c_int = 1;
-pub const LOG_CRIT: ::c_int = 2;
-pub const LOG_ERR: ::c_int = 3;
-pub const LOG_WARNING: ::c_int = 4;
-pub const LOG_NOTICE: ::c_int = 5;
-pub const LOG_INFO: ::c_int = 6;
-pub const LOG_DEBUG: ::c_int = 7;
-
-pub const LOG_KERN: ::c_int = 0;
-pub const LOG_USER: ::c_int = 1 << 3;
-pub const LOG_MAIL: ::c_int = 2 << 3;
-pub const LOG_DAEMON: ::c_int = 3 << 3;
-pub const LOG_AUTH: ::c_int = 4 << 3;
-pub const LOG_SYSLOG: ::c_int = 5 << 3;
-pub const LOG_LPR: ::c_int = 6 << 3;
-pub const LOG_NEWS: ::c_int = 7 << 3;
-pub const LOG_UUCP: ::c_int = 8 << 3;
-pub const LOG_LOCAL0: ::c_int = 16 << 3;
-pub const LOG_LOCAL1: ::c_int = 17 << 3;
-pub const LOG_LOCAL2: ::c_int = 18 << 3;
-pub const LOG_LOCAL3: ::c_int = 19 << 3;
-pub const LOG_LOCAL4: ::c_int = 20 << 3;
-pub const LOG_LOCAL5: ::c_int = 21 << 3;
-pub const LOG_LOCAL6: ::c_int = 22 << 3;
-pub const LOG_LOCAL7: ::c_int = 23 << 3;
-
-pub const LOG_PID: ::c_int = 0x01;
-pub const LOG_CONS: ::c_int = 0x02;
-pub const LOG_ODELAY: ::c_int = 0x04;
-pub const LOG_NDELAY: ::c_int = 0x08;
-pub const LOG_NOWAIT: ::c_int = 0x10;
-
-pub const LOG_PRIMASK: ::c_int = 7;
-pub const LOG_FACMASK: ::c_int = 0x3f8;
-
-pub const PRIO_PROCESS: ::c_int = 0;
-pub const PRIO_PGRP: ::c_int = 1;
-pub const PRIO_USER: ::c_int = 2;
-
-pub const PRIO_MIN: ::c_int = -20;
-pub const PRIO_MAX: ::c_int = 20;
-
-cfg_if! {
-    if #[cfg(dox)] {
-        // on dox builds don't pull in anything
-    } else if #[cfg(all(not(stdbuild), feature = "use_std"))] {
-        // cargo build, don't pull in anything extra as the libstd  dep
-        // already pulls in all libs.
-    } else if #[cfg(any(all(target_env = "musl", not(target_arch = "mips"))))] {
-        #[link(name = "c", kind = "static")]
-        extern {}
-    } else if #[cfg(target_os = "emscripten")] {
-        #[link(name = "c")]
-        extern {}
-    } else if #[cfg(all(target_os = "netbsd", target_vendor = "rumprun"))] {
-        // Since we don't use -nodefaultlibs on Rumprun, libc is always pulled
-        // in automatically by the linker. We avoid passing it explicitly, as it
-        // causes some versions of binutils to crash with an assertion failure.
-        #[link(name = "m")]
-        extern {}
-    } else if #[cfg(any(target_os = "macos",
-                        target_os = "ios",
-                        target_os = "android",
-                        target_os = "openbsd",
-                        target_os = "bitrig"))] {
-        #[link(name = "c")]
-        #[link(name = "m")]
-        extern {}
-    } else {
-        #[link(name = "c")]
-        #[link(name = "m")]
-        #[link(name = "rt")]
-        extern {}
-    }
-}
-
-extern {
-    pub fn getgrnam(name: *const ::c_char) -> *mut group;
-    pub fn getgrgid(gid: ::gid_t) -> *mut group;
-
-    pub fn endpwent();
-    #[cfg_attr(target_os = "netbsd", link_name = "__getpwnam50")]
-    pub fn getpwnam(name: *const ::c_char) -> *mut passwd;
-    #[cfg_attr(target_os = "netbsd", link_name = "__getpwuid50")]
-    pub fn getpwuid(uid: ::uid_t) -> *mut passwd;
-
-    pub fn fprintf(stream: *mut ::FILE,
-                   format: *const ::c_char, ...) -> ::c_int;
-    pub fn printf(format: *const ::c_char, ...) -> ::c_int;
-    pub fn snprintf(s: *mut ::c_char, n: ::size_t,
-                    format: *const ::c_char, ...) -> ::c_int;
-    pub fn sprintf(s: *mut ::c_char, format: *const ::c_char, ...) -> ::c_int;
-    pub fn fscanf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int;
-    pub fn scanf(format: *const ::c_char, ...) -> ::c_int;
-    pub fn sscanf(s: *const ::c_char, format: *const ::c_char, ...) -> ::c_int;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__socket30")]
-    pub fn socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "connect$UNIX2003")]
-    pub fn connect(socket: ::c_int, address: *const sockaddr,
-                   len: socklen_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "bind$UNIX2003")]
-    pub fn bind(socket: ::c_int, address: *const sockaddr,
-                address_len: socklen_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "listen$UNIX2003")]
-    pub fn listen(socket: ::c_int, backlog: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "accept$UNIX2003")]
-    pub fn accept(socket: ::c_int, address: *mut sockaddr,
-                  address_len: *mut socklen_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "getpeername$UNIX2003")]
-    pub fn getpeername(socket: ::c_int, address: *mut sockaddr,
-                       address_len: *mut socklen_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "getsockname$UNIX2003")]
-    pub fn getsockname(socket: ::c_int, address: *mut sockaddr,
-                       address_len: *mut socklen_t) -> ::c_int;
-    pub fn setsockopt(socket: ::c_int, level: ::c_int, name: ::c_int,
-                      value: *const ::c_void,
-                      option_len: socklen_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "socketpair$UNIX2003")]
-    pub fn socketpair(domain: ::c_int, type_: ::c_int, protocol: ::c_int,
-                      socket_vector: *mut ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "sendto$UNIX2003")]
-    pub fn sendto(socket: ::c_int, buf: *const ::c_void, len: ::size_t,
-                  flags: ::c_int, addr: *const sockaddr,
-                  addrlen: socklen_t) -> ::ssize_t;
-    pub fn shutdown(socket: ::c_int, how: ::c_int) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "chmod$UNIX2003")]
-    pub fn chmod(path: *const c_char, mode: mode_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "fchmod$UNIX2003")]
-    pub fn fchmod(fd: ::c_int, mode: mode_t) -> ::c_int;
-
-    #[cfg_attr(target_os = "macos", link_name = "fstat$INODE64")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__fstat50")]
-    pub fn fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int;
-
-    pub fn mkdir(path: *const c_char, mode: mode_t) -> ::c_int;
-
-    #[cfg_attr(target_os = "macos", link_name = "stat$INODE64")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__stat50")]
-    pub fn stat(path: *const c_char, buf: *mut stat) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "popen$UNIX2003")]
-    pub fn popen(command: *const c_char,
-                 mode: *const c_char) -> *mut ::FILE;
-    pub fn pclose(stream: *mut ::FILE) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "fdopen$UNIX2003")]
-    pub fn fdopen(fd: ::c_int, mode: *const c_char) -> *mut ::FILE;
-    pub fn fileno(stream: *mut ::FILE) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "open$UNIX2003")]
-    pub fn open(path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "creat$UNIX2003")]
-    pub fn creat(path: *const c_char, mode: mode_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "fcntl$UNIX2003")]
-    pub fn fcntl(fd: ::c_int, cmd: ::c_int, ...) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "opendir$INODE64")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "opendir$INODE64$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__opendir30")]
-    pub fn opendir(dirname: *const c_char) -> *mut ::DIR;
-    #[cfg_attr(target_os = "macos", link_name = "readdir_r$INODE64")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__readdir_r30")]
-    pub fn readdir_r(dirp: *mut ::DIR, entry: *mut ::dirent,
-                     result: *mut *mut ::dirent) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "closedir$UNIX2003")]
-    pub fn closedir(dirp: *mut ::DIR) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "rewinddir$INODE64")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "rewinddir$INODE64$UNIX2003")]
-    pub fn rewinddir(dirp: *mut ::DIR);
-
-    pub fn access(path: *const c_char, amode: ::c_int) -> ::c_int;
-    pub fn alarm(seconds: ::c_uint) -> ::c_uint;
-    pub fn chdir(dir: *const c_char) -> ::c_int;
-    pub fn chown(path: *const c_char, uid: uid_t,
-                 gid: gid_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "lchown$UNIX2003")]
-    pub fn lchown(path: *const c_char, uid: uid_t,
-                  gid: gid_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "close$UNIX2003")]
-    pub fn close(fd: ::c_int) -> ::c_int;
-    pub fn dup(fd: ::c_int) -> ::c_int;
-    pub fn dup2(src: ::c_int, dst: ::c_int) -> ::c_int;
-    pub fn execv(prog: *const c_char,
-                 argv: *const *const c_char) -> ::c_int;
-    pub fn execve(prog: *const c_char, argv: *const *const c_char,
-                  envp: *const *const c_char)
-                  -> ::c_int;
-    pub fn execvp(c: *const c_char,
-                  argv: *const *const c_char) -> ::c_int;
-    pub fn fork() -> pid_t;
-    pub fn fpathconf(filedes: ::c_int, name: ::c_int) -> c_long;
-    pub fn getcwd(buf: *mut c_char, size: ::size_t) -> *mut c_char;
-    pub fn getegid() -> gid_t;
-    pub fn geteuid() -> uid_t;
-    pub fn getgid() -> gid_t;
-    pub fn getgroups(ngroups_max: ::c_int, groups: *mut gid_t)
-                     -> ::c_int;
-    pub fn getlogin() -> *mut c_char;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "getopt$UNIX2003")]
-    pub fn getopt(argc: ::c_int, argv: *const *mut c_char,
-                  optstr: *const c_char) -> ::c_int;
-    pub fn getpgid(pid: pid_t) -> pid_t;
-    pub fn getpgrp() -> pid_t;
-    pub fn getpid() -> pid_t;
-    pub fn getppid() -> pid_t;
-    pub fn getuid() -> uid_t;
-    pub fn isatty(fd: ::c_int) -> ::c_int;
-    pub fn link(src: *const c_char, dst: *const c_char) -> ::c_int;
-    pub fn lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -> off_t;
-    pub fn pathconf(path: *const c_char, name: ::c_int) -> c_long;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pause$UNIX2003")]
-    pub fn pause() -> ::c_int;
-    pub fn pipe(fds: *mut ::c_int) -> ::c_int;
-    pub fn posix_memalign(memptr: *mut *mut ::c_void,
-                      align: ::size_t,
-                      size: ::size_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "read$UNIX2003")]
-    pub fn read(fd: ::c_int, buf: *mut ::c_void, count: ::size_t)
-                -> ::ssize_t;
-    pub fn rmdir(path: *const c_char) -> ::c_int;
-    pub fn setgid(gid: gid_t) -> ::c_int;
-    pub fn setpgid(pid: pid_t, pgid: pid_t) -> ::c_int;
-    pub fn setsid() -> pid_t;
-    pub fn setuid(uid: uid_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "sleep$UNIX2003")]
-    pub fn sleep(secs: ::c_uint) -> ::c_uint;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "nanosleep$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__nanosleep50")]
-    pub fn nanosleep(rqtp: *const timespec,
-                     rmtp: *mut timespec) -> ::c_int;
-    pub fn tcgetpgrp(fd: ::c_int) -> pid_t;
-    pub fn ttyname(fd: ::c_int) -> *mut c_char;
-    pub fn unlink(c: *const c_char) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "wait$UNIX2003")]
-    pub fn wait(status: *mut ::c_int) -> pid_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "waitpid$UNIX2003")]
-    pub fn waitpid(pid: pid_t, status: *mut ::c_int, options: ::c_int)
-                   -> pid_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "write$UNIX2003")]
-    pub fn write(fd: ::c_int, buf: *const ::c_void, count: ::size_t)
-                 -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pread$UNIX2003")]
-    pub fn pread(fd: ::c_int, buf: *mut ::c_void, count: ::size_t,
-                 offset: off_t) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pwrite$UNIX2003")]
-    pub fn pwrite(fd: ::c_int, buf: *const ::c_void, count: ::size_t,
-                  offset: off_t) -> ::ssize_t;
-    pub fn umask(mask: mode_t) -> mode_t;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__utime50")]
-    pub fn utime(file: *const c_char, buf: *const utimbuf) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-                   link_name = "kill$UNIX2003")]
-    pub fn kill(pid: pid_t, sig: ::c_int) -> ::c_int;
-
-    pub fn mlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
-    pub fn munlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
-    pub fn mlockall(flags: ::c_int) -> ::c_int;
-    pub fn munlockall() -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "mmap$UNIX2003")]
-    pub fn mmap(addr: *mut ::c_void,
-                len: ::size_t,
-                prot: ::c_int,
-                flags: ::c_int,
-                fd: ::c_int,
-                offset: off_t)
-                -> *mut ::c_void;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "munmap$UNIX2003")]
-    pub fn munmap(addr: *mut ::c_void, len: ::size_t) -> ::c_int;
-
-    pub fn if_nametoindex(ifname: *const c_char) -> ::c_uint;
-    pub fn if_indextoname(ifindex: ::c_uint,
-                          ifname: *mut ::c_char) -> *mut ::c_char;
-
-    #[cfg_attr(target_os = "macos", link_name = "lstat$INODE64")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__lstat50")]
-    pub fn lstat(path: *const c_char, buf: *mut stat) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "fsync$UNIX2003")]
-    pub fn fsync(fd: ::c_int) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "setenv$UNIX2003")]
-    pub fn setenv(name: *const c_char, val: *const c_char,
-                  overwrite: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "unsetenv$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__unsetenv13")]
-    pub fn unsetenv(name: *const c_char) -> ::c_int;
-
-    pub fn symlink(path1: *const c_char,
-                   path2: *const c_char) -> ::c_int;
-
-    pub fn ftruncate(fd: ::c_int, length: off_t) -> ::c_int;
-
-    pub fn signal(signum: ::c_int, handler: sighandler_t) -> sighandler_t;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "getrlimit$UNIX2003")]
-    pub fn getrlimit(resource: ::c_int, rlim: *mut rlimit) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "setrlimit$UNIX2003")]
-    pub fn setrlimit(resource: ::c_int, rlim: *const rlimit) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__getrusage50")]
-    pub fn getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int;
-
-    pub fn getdtablesize() -> ::c_int;
-    #[cfg_attr(any(target_os = "macos", target_os = "ios"),
-               link_name = "realpath$DARWIN_EXTSN")]
-    pub fn realpath(pathname: *const ::c_char, resolved: *mut ::c_char)
-                    -> *mut ::c_char;
-
-    pub fn flock(fd: ::c_int, operation: ::c_int) -> ::c_int;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__gettimeofday50")]
-    pub fn gettimeofday(tp: *mut ::timeval,
-                        tz: *mut ::c_void) -> ::c_int;
-
-    pub fn pthread_self() -> ::pthread_t;
-    pub fn pthread_create(native: *mut ::pthread_t,
-                          attr: *const ::pthread_attr_t,
-                          f: extern fn(*mut ::c_void) -> *mut ::c_void,
-                          value: *mut ::c_void) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_join$UNIX2003")]
-    pub fn pthread_join(native: ::pthread_t,
-                        value: *mut *mut ::c_void) -> ::c_int;
-    pub fn pthread_attr_init(attr: *mut ::pthread_attr_t) -> ::c_int;
-    pub fn pthread_attr_destroy(attr: *mut ::pthread_attr_t) -> ::c_int;
-    pub fn pthread_attr_setstacksize(attr: *mut ::pthread_attr_t,
-                                     stack_size: ::size_t) -> ::c_int;
-    pub fn pthread_attr_setdetachstate(attr: *mut ::pthread_attr_t,
-                                       state: ::c_int) -> ::c_int;
-    pub fn pthread_detach(thread: ::pthread_t) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__libc_thr_yield")]
-    pub fn sched_yield() -> ::c_int;
-    pub fn pthread_key_create(key: *mut pthread_key_t,
-                              dtor: Option<unsafe extern fn(*mut ::c_void)>)
-                              -> ::c_int;
-    pub fn pthread_key_delete(key: pthread_key_t) -> ::c_int;
-    pub fn pthread_getspecific(key: pthread_key_t) -> *mut ::c_void;
-    pub fn pthread_setspecific(key: pthread_key_t, value: *const ::c_void)
-                               -> ::c_int;
-    pub fn pthread_mutex_init(lock: *mut pthread_mutex_t,
-                              attr: *const pthread_mutexattr_t) -> ::c_int;
-    pub fn pthread_mutex_destroy(lock: *mut pthread_mutex_t) -> ::c_int;
-    pub fn pthread_mutex_lock(lock: *mut pthread_mutex_t) -> ::c_int;
-    pub fn pthread_mutex_trylock(lock: *mut pthread_mutex_t) -> ::c_int;
-    pub fn pthread_mutex_unlock(lock: *mut pthread_mutex_t) -> ::c_int;
-
-    pub fn pthread_mutexattr_init(attr: *mut pthread_mutexattr_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_mutexattr_destroy$UNIX2003")]
-    pub fn pthread_mutexattr_destroy(attr: *mut pthread_mutexattr_t) -> ::c_int;
-    pub fn pthread_mutexattr_settype(attr: *mut pthread_mutexattr_t,
-                                     _type: ::c_int) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_cond_init$UNIX2003")]
-    pub fn pthread_cond_init(cond: *mut pthread_cond_t,
-                             attr: *const pthread_condattr_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_cond_wait$UNIX2003")]
-    pub fn pthread_cond_wait(cond: *mut pthread_cond_t,
-                             lock: *mut pthread_mutex_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_cond_timedwait$UNIX2003")]
-    pub fn pthread_cond_timedwait(cond: *mut pthread_cond_t,
-                              lock: *mut pthread_mutex_t,
-                              abstime: *const ::timespec) -> ::c_int;
-    pub fn pthread_cond_signal(cond: *mut pthread_cond_t) -> ::c_int;
-    pub fn pthread_cond_broadcast(cond: *mut pthread_cond_t) -> ::c_int;
-    pub fn pthread_cond_destroy(cond: *mut pthread_cond_t) -> ::c_int;
-    pub fn pthread_condattr_init(attr: *mut pthread_condattr_t) -> ::c_int;
-    pub fn pthread_condattr_destroy(attr: *mut pthread_condattr_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_destroy$UNIX2003")]
-    pub fn pthread_rwlock_destroy(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_rdlock$UNIX2003")]
-    pub fn pthread_rwlock_rdlock(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_tryrdlock$UNIX2003")]
-    pub fn pthread_rwlock_tryrdlock(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_wrlock$UNIX2003")]
-    pub fn pthread_rwlock_wrlock(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_trywrlock$UNIX2003")]
-    pub fn pthread_rwlock_trywrlock(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_rwlock_unlock$UNIX2003")]
-    pub fn pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pthread_sigmask$UNIX2003")]
-    pub fn pthread_sigmask(how: ::c_int, set: *const sigset_t,
-                           oldset: *mut sigset_t) -> ::c_int;
-    pub fn pthread_kill(thread: ::pthread_t, sig: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "linux", not(target_env = "musl")),
-               link_name = "__xpg_strerror_r")]
-    pub fn strerror_r(errnum: ::c_int, buf: *mut c_char,
-                      buflen: ::size_t) -> ::c_int;
-
-    pub fn getsockopt(sockfd: ::c_int,
-                      level: ::c_int,
-                      optname: ::c_int,
-                      optval: *mut ::c_void,
-                      optlen: *mut ::socklen_t) -> ::c_int;
-    pub fn raise(signum: ::c_int) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigaction14")]
-    pub fn sigaction(signum: ::c_int,
-                     act: *const sigaction,
-                     oldact: *mut sigaction) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "sigaltstack$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigaltstack14")]
-    pub fn sigaltstack(ss: *const stack_t,
-                       oss: *mut stack_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch ="x86"),
-               link_name = "sigwait$UNIX2003")]
-    pub fn sigwait(set: *const sigset_t,
-                   sig: *mut ::c_int) -> ::c_int;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__utimes50")]
-    pub fn utimes(filename: *const ::c_char,
-                  times: *const ::timeval) -> ::c_int;
-    pub fn dlopen(filename: *const ::c_char,
-                  flag: ::c_int) -> *mut ::c_void;
-    pub fn dlerror() -> *mut ::c_char;
-    pub fn dlsym(handle: *mut ::c_void,
-                 symbol: *const ::c_char) -> *mut ::c_void;
-    pub fn dlclose(handle: *mut ::c_void) -> ::c_int;
-    pub fn dladdr(addr: *const ::c_void, info: *mut Dl_info) -> ::c_int;
-
-    pub fn getaddrinfo(node: *const c_char,
-                       service: *const c_char,
-                       hints: *const addrinfo,
-                       res: *mut *mut addrinfo) -> ::c_int;
-    pub fn freeaddrinfo(res: *mut addrinfo);
-    pub fn gai_strerror(errcode: ::c_int) -> *const ::c_char;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__gmtime_r50")]
-    pub fn gmtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm;
-    #[cfg_attr(target_os = "netbsd", link_name = "__localtime_r50")]
-    pub fn localtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "mktime$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__mktime50")]
-    pub fn mktime(tm: *mut tm) -> time_t;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__mknod50")]
-    pub fn mknod(pathname: *const ::c_char, mode: ::mode_t,
-                 dev: ::dev_t) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "writev$UNIX2003")]
-    pub fn writev(fd: ::c_int,
-                  iov: *const ::iovec,
-                  iovcnt: ::c_int) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "readv$UNIX2003")]
-    pub fn readv(fd: ::c_int,
-                 iov: *const ::iovec,
-                 iovcnt: ::c_int) -> ::ssize_t;
-    pub fn uname(buf: *mut ::utsname) -> ::c_int;
-    pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;
-    pub fn gethostname(name: *mut ::c_char, len: ::size_t) -> ::c_int;
-    pub fn chroot(name: *const ::c_char) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "usleep$UNIX2003")]
-    pub fn usleep(secs: ::c_uint) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "send$UNIX2003")]
-    pub fn send(socket: ::c_int, buf: *const ::c_void, len: ::size_t,
-                flags: ::c_int) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "recv$UNIX2003")]
-    pub fn recv(socket: ::c_int, buf: *mut ::c_void, len: ::size_t,
-                flags: ::c_int) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "putenv$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__putenv50")]
-    pub fn putenv(string: *mut c_char) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "sendmsg$UNIX2003")]
-    pub fn sendmsg(fd: ::c_int,
-                   msg: *const msghdr,
-                   flags: ::c_int) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "recvmsg$UNIX2003")]
-    pub fn recvmsg(fd: ::c_int, msg: *mut msghdr, flags: ::c_int) -> ::ssize_t;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "poll$UNIX2003")]
-    pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "select$1050")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "select$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__select50")]
-    pub fn select(nfds: ::c_int,
-                  readfs: *mut fd_set,
-                  writefds: *mut fd_set,
-                  errorfds: *mut fd_set,
-                  timeout: *mut timeval) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__setlocale50")]
-    pub fn setlocale(category: ::c_int,
-                     locale: *const ::c_char) -> *mut ::c_char;
-    pub fn localeconv() -> *mut lconv;
-
-    pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
-    pub fn sem_open(name: *const ::c_char, oflag: ::c_int, ...) -> *mut sem_t;
-    pub fn sem_close(sem: *mut sem_t) -> ::c_int;
-    pub fn sem_unlink(name: *const ::c_char) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "sem_wait$UNIX2003")]
-    pub fn sem_wait(sem: *mut sem_t) -> ::c_int;
-    pub fn sem_trywait(sem: *mut sem_t) -> ::c_int;
-    pub fn sem_post(sem: *mut sem_t) -> ::c_int;
-    pub fn sem_init(sem: *mut sem_t,
-                    pshared: ::c_int,
-                    value: ::c_uint)
-                    -> ::c_int;
-}
-
-// TODO: get rid of this cfg(not(...))
-#[cfg(not(target_os = "android"))] // " if " -- appease style checker
-extern {
-    pub fn getifaddrs(ifap: *mut *mut ifaddrs) -> ::c_int;
-    pub fn freeifaddrs(ifa: *mut ifaddrs);
-    #[cfg_attr(target_os = "macos", link_name = "glob$INODE64")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__glob30")]
-    pub fn glob(pattern: *const c_char,
-                flags: ::c_int,
-                errfunc: Option<extern fn(epath: *const c_char,
-                                          errno: ::c_int) -> ::c_int>,
-                pglob: *mut glob_t) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__globfree30")]
-    pub fn globfree(pglob: *mut glob_t);
-
-    pub fn posix_madvise(addr: *mut ::c_void, len: ::size_t, advice: ::c_int)
-                         -> ::c_int;
-
-    pub fn shm_unlink(name: *const c_char) -> ::c_int;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "seekdir$INODE64")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "seekdir$INODE64$UNIX2003")]
-    pub fn seekdir(dirp: *mut ::DIR, loc: c_long);
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "telldir$INODE64")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "telldir$INODE64$UNIX2003")]
-    pub fn telldir(dirp: *mut ::DIR) -> c_long;
-
-    pub fn getsid(pid: pid_t) -> pid_t;
-    pub fn madvise(addr: *mut ::c_void, len: ::size_t, advice: ::c_int)
-                   -> ::c_int;
-    pub fn readlink(path: *const c_char,
-                    buf: *mut c_char,
-                    bufsz: ::size_t)
-                    -> ::ssize_t;
-
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "msync$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__msync13")]
-    pub fn msync(addr: *mut ::c_void, len: ::size_t, flags: ::c_int) -> ::c_int;
-    pub fn sysconf(name: ::c_int) -> c_long;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "recvfrom$UNIX2003")]
-    pub fn recvfrom(socket: ::c_int, buf: *mut ::c_void, len: ::size_t,
-                    flags: ::c_int, addr: *mut sockaddr,
-                    addrlen: *mut socklen_t) -> ::ssize_t;
-    pub fn mkfifo(path: *const c_char, mode: mode_t) -> ::c_int;
-
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigemptyset14")]
-    pub fn sigemptyset(set: *mut sigset_t) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigaddset14")]
-    pub fn sigaddset(set: *mut sigset_t, signum: ::c_int) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigfillset14")]
-    pub fn sigfillset(set: *mut sigset_t) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigdelset14")]
-    pub fn sigdelset(set: *mut sigset_t, signum: ::c_int) -> ::c_int;
-    #[cfg_attr(target_os = "netbsd", link_name = "__sigismember14")]
-    pub fn sigismember(set: *const sigset_t, signum: ::c_int) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
-               link_name = "pselect$1050")]
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "pselect$UNIX2003")]
-    #[cfg_attr(target_os = "netbsd", link_name = "__pselect50")]
-    pub fn pselect(nfds: ::c_int,
-                   readfs: *mut fd_set,
-                   writefds: *mut fd_set,
-                   errorfds: *mut fd_set,
-                   timeout: *const timespec,
-                   sigmask: *const sigset_t) -> ::c_int;
-    pub fn fseeko(stream: *mut ::FILE,
-                  offset: ::off_t,
-                  whence: ::c_int) -> ::c_int;
-    pub fn ftello(stream: *mut ::FILE) -> ::off_t;
-    #[cfg_attr(target_os = "netbsd", link_name = "__timegm50")]
-    pub fn timegm(tm: *mut ::tm) -> time_t;
-    pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int;
-    pub fn fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int;
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "tcdrain$UNIX2003")]
-    pub fn tcdrain(fd: ::c_int) -> ::c_int;
-    pub fn cfgetispeed(termios: *const ::termios) -> ::speed_t;
-    pub fn cfgetospeed(termios: *const ::termios) -> ::speed_t;
-    pub fn cfsetispeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int;
-    pub fn cfsetospeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int;
-    pub fn tcgetattr(fd: ::c_int, termios: *mut ::termios) -> ::c_int;
-    pub fn tcsetattr(fd: ::c_int,
-                     optional_actions: ::c_int,
-                     termios: *const ::termios) -> ::c_int;
-    pub fn tcflow(fd: ::c_int, action: ::c_int) -> ::c_int;
-    pub fn tcflush(fd: ::c_int, action: ::c_int) -> ::c_int;
-    pub fn tcsendbreak(fd: ::c_int, duration: ::c_int) -> ::c_int;
-    pub fn mkstemp(template: *mut ::c_char) -> ::c_int;
-    pub fn mkstemps(template: *mut ::c_char, suffixlen: ::c_int) -> ::c_int;
-    pub fn mkdtemp(template: *mut ::c_char) -> *mut ::c_char;
-    pub fn futimes(fd: ::c_int, times: *const ::timeval) -> ::c_int;
-    pub fn nl_langinfo(item: ::nl_item) -> *mut ::c_char;
-
-    pub fn openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int);
-    pub fn closelog();
-    pub fn setlogmask(maskpri: ::c_int) -> ::c_int;
-    pub fn syslog(priority: ::c_int, message: *const ::c_char, ...);
-    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
-               link_name = "nice$UNIX2003")]
-    pub fn nice(incr: ::c_int) -> ::c_int;
-}
-
-cfg_if! {
-    if #[cfg(any(target_os = "linux",
-                 target_os = "android",
-                 target_os = "emscripten"))] {
-        mod notbsd;
-        pub use self::notbsd::*;
-    } else if #[cfg(any(target_os = "macos",
-                        target_os = "ios",
-                        target_os = "freebsd",
-                        target_os = "dragonfly",
-                        target_os = "openbsd",
-                        target_os = "netbsd",
-                        target_os = "bitrig"))] {
-        mod bsd;
-        pub use self::bsd::*;
-    } else if #[cfg(target_os = "solaris")] {
-        mod solaris;
-        pub use self::solaris::*;
-    } else {
-        // Unknown target_os
-    }
-}