Upgrade libuv to the current master (again)

This is a reopening of the libuv-upgrade part of #8645. Hopefully this won't
cause random segfaults all over the place. The windows regression in testing
should also be fixed (it shouldn't build the whole compiler twice).

A notable difference from before is that gyp is now a git submodule instead of
always git-cloned at make time. This allows bundling for releases more easily.

Closes #8850

10 files changed, 81 insertions, 124 deletions

diff --git a/src/libstd/rt/io/net/tcp.rs b/src/libstd/rt/io/net/tcp.rs
index b7cb703eb25..b533ebe923b 100644
--- a/src/libstd/rt/io/net/tcp.rs
+++ b/src/libstd/rt/io/net/tcp.rs
@@ -182,7 +182,7 @@ mod test {
         do run_in_newsched_task {
             let mut called = false;
             do io_error::cond.trap(|e| {
-                assert!(e.kind == ConnectionRefused);
+                assert_eq!(e.kind, ConnectionRefused);
                 called = true;
             }).inside {
                 let addr = SocketAddr { ip: Ipv4Addr(0, 0, 0, 0), port: 1 };
diff --git a/src/libstd/rt/uv/addrinfo.rs b/src/libstd/rt/uv/addrinfo.rs
index 00d1ab5aa9c..83a7e64b139 100644
--- a/src/libstd/rt/uv/addrinfo.rs
+++ b/src/libstd/rt/uv/addrinfo.rs
@@ -17,7 +17,7 @@ use ptr::null;
 use rt::uv::uvll;
 use rt::uv::uvll::UV_GETADDRINFO;
 use rt::uv::{Loop, UvError, NativeHandle};
-use rt::uv::status_to_maybe_uv_error_with_loop;
+use rt::uv::status_to_maybe_uv_error;
 use rt::uv::net::UvAddrInfo;
 
 type GetAddrInfoCallback = ~fn(GetAddrInfoRequest, &UvAddrInfo, Option<UvError>);
@@ -90,8 +90,7 @@ impl GetAddrInfoRequest {
                                      status: c_int,
                                      res: *uvll::addrinfo) {
             let mut req: GetAddrInfoRequest = NativeHandle::from_native_handle(req);
-            let loop_ = req.get_loop();
-            let err = status_to_maybe_uv_error_with_loop(loop_.native_handle(), status);
+            let err = status_to_maybe_uv_error(status);
             let addrinfo = UvAddrInfo(res);
             let data = req.get_req_data();
             (*data.getaddrinfo_cb.get_ref())(req, &addrinfo, err);
diff --git a/src/libstd/rt/uv/async.rs b/src/libstd/rt/uv/async.rs
index d0ca38317cb..ff7bb9dd03a 100644
--- a/src/libstd/rt/uv/async.rs
+++ b/src/libstd/rt/uv/async.rs
@@ -34,7 +34,7 @@ impl AsyncWatcher {
 
         extern fn async_cb(handle: *uvll::uv_async_t, status: c_int) {
             let mut watcher: AsyncWatcher = NativeHandle::from_native_handle(handle);
-            let status = status_to_maybe_uv_error(watcher, status);
+            let status = status_to_maybe_uv_error(status);
             let data = watcher.get_watcher_data();
             let cb = data.async_cb.get_ref();
             (*cb)(watcher, status);
diff --git a/src/libstd/rt/uv/file.rs b/src/libstd/rt/uv/file.rs
index 0902d5e6d8c..45a5fce3f1e 100644
--- a/src/libstd/rt/uv/file.rs
+++ b/src/libstd/rt/uv/file.rs
@@ -12,7 +12,7 @@ use prelude::*;
 use ptr::null;
 use libc::c_void;
 use rt::uv::{Request, NativeHandle, Loop, FsCallback, Buf,
-             status_to_maybe_uv_error_with_loop, UvError};
+             status_to_maybe_uv_error, UvError};
 use rt::uv::uvll;
 use rt::uv::uvll::*;
 use super::super::io::support::PathLike;
@@ -62,7 +62,7 @@ impl FsRequest {
     pub fn open_sync<P: PathLike>(loop_: &Loop, path: &P, flags: int, mode: int)
           -> Result<int, UvError> {
         let result = FsRequest::open_common(loop_, path, flags, mode, None);
-        sync_cleanup(loop_, result)
+        sync_cleanup(result)
     }
 
     fn unlink_common<P: PathLike>(loop_: &Loop, path: &P, cb: Option<FsCallback>) -> int {
@@ -83,11 +83,11 @@ impl FsRequest {
     }
     pub fn unlink<P: PathLike>(loop_: &Loop, path: &P, cb: FsCallback) {
         let result = FsRequest::unlink_common(loop_, path, Some(cb));
-        sync_cleanup(loop_, result);
+        sync_cleanup(result);
     }
     pub fn unlink_sync<P: PathLike>(loop_: &Loop, path: &P) -> Result<int, UvError> {
         let result = FsRequest::unlink_common(loop_, path, None);
-        sync_cleanup(loop_, result)
+        sync_cleanup(result)
     }
 
     pub fn install_req_data(&self, cb: Option<FsCallback>) {
@@ -140,9 +140,9 @@ impl NativeHandle<*uvll::uv_fs_t> for FsRequest {
     }
 }
 
-fn sync_cleanup(loop_: &Loop, result: int)
+fn sync_cleanup(result: int)
     -> Result<int, UvError> {
-    match status_to_maybe_uv_error_with_loop(loop_.native_handle(), result as i32) {
+    match status_to_maybe_uv_error(result as i32) {
         Some(err) => Err(err),
         None => Ok(result)
     }
@@ -186,7 +186,7 @@ impl FileDescriptor {
     pub fn write_sync(&mut self, loop_: &Loop, buf: Buf, offset: i64)
           -> Result<int, UvError> {
         let result = self.write_common(loop_, buf, offset, None);
-        sync_cleanup(loop_, result)
+        sync_cleanup(result)
     }
 
     fn read_common(&mut self, loop_: &Loop, buf: Buf,
@@ -214,7 +214,7 @@ impl FileDescriptor {
     pub fn read_sync(&mut self, loop_: &Loop, buf: Buf, offset: i64)
           -> Result<int, UvError> {
         let result = self.read_common(loop_, buf, offset, None);
-        sync_cleanup(loop_, result)
+        sync_cleanup(result)
     }
 
     fn close_common(self, loop_: &Loop, cb: Option<FsCallback>) -> int {
@@ -236,12 +236,11 @@ impl FileDescriptor {
     }
     pub fn close_sync(self, loop_: &Loop) -> Result<int, UvError> {
         let result = self.close_common(loop_, None);
-        sync_cleanup(loop_, result)
+        sync_cleanup(result)
     }
 }
 extern fn compl_cb(req: *uv_fs_t) {
     let mut req: FsRequest = NativeHandle::from_native_handle(req);
-    let loop_ = req.get_loop();
     // pull the user cb out of the req data
     let cb = {
         let data = req.get_req_data();
@@ -252,8 +251,7 @@ extern fn compl_cb(req: *uv_fs_t) {
     // in uv_fs_open calls, the result will be the fd in the
     // case of success, otherwise it's -1 indicating an error
     let result = req.get_result();
-    let status = status_to_maybe_uv_error_with_loop(
-        loop_.native_handle(), result);
+    let status = status_to_maybe_uv_error(result);
     // we have a req and status, call the user cb..
     // only giving the user a ref to the FsRequest, as we
     // have to clean it up, afterwards (and they aren't really
diff --git a/src/libstd/rt/uv/idle.rs b/src/libstd/rt/uv/idle.rs
index a21146620ca..8cbcd7b77c0 100644
--- a/src/libstd/rt/uv/idle.rs
+++ b/src/libstd/rt/uv/idle.rs
@@ -43,7 +43,7 @@ impl IdleWatcher {
             let mut idle_watcher: IdleWatcher = NativeHandle::from_native_handle(handle);
             let data = idle_watcher.get_watcher_data();
             let cb: &IdleCallback = data.idle_cb.get_ref();
-            let status = status_to_maybe_uv_error(idle_watcher, status);
+            let status = status_to_maybe_uv_error(status);
             (*cb)(idle_watcher, status);
         }
     }
@@ -57,7 +57,7 @@ impl IdleWatcher {
             let mut idle_watcher: IdleWatcher = NativeHandle::from_native_handle(handle);
             let data = idle_watcher.get_watcher_data();
             let cb: &IdleCallback = data.idle_cb.get_ref();
-            let status = status_to_maybe_uv_error(idle_watcher, status);
+            let status = status_to_maybe_uv_error(status);
             (*cb)(idle_watcher, status);
         }
     }
diff --git a/src/libstd/rt/uv/mod.rs b/src/libstd/rt/uv/mod.rs
index b85b223468e..451d454d2d8 100644
--- a/src/libstd/rt/uv/mod.rs
+++ b/src/libstd/rt/uv/mod.rs
@@ -204,12 +204,12 @@ impl<H, W: Watcher + NativeHandle<*H>> WatcherInterop for W {
 // XXX: Need to define the error constants like EOF so they can be
 // compared to the UvError type
 
-pub struct UvError(uvll::uv_err_t);
+pub struct UvError(c_int);
 
 impl UvError {
     pub fn name(&self) -> ~str {
         unsafe {
-            let inner = match self { &UvError(ref a) => a };
+            let inner = match self { &UvError(a) => a };
             let name_str = uvll::err_name(inner);
             assert!(name_str.is_not_null());
             from_c_str(name_str)
@@ -218,7 +218,7 @@ impl UvError {
 
     pub fn desc(&self) -> ~str {
         unsafe {
-            let inner = match self { &UvError(ref a) => a };
+            let inner = match self { &UvError(a) => a };
             let desc_str = uvll::strerror(inner);
             assert!(desc_str.is_not_null());
             from_c_str(desc_str)
@@ -226,7 +226,7 @@ impl UvError {
     }
 
     pub fn is_eof(&self) -> bool {
-        self.code == uvll::EOF
+        **self == uvll::EOF
     }
 }
 
@@ -238,18 +238,10 @@ impl ToStr for UvError {
 
 #[test]
 fn error_smoke_test() {
-    let err = uvll::uv_err_t { code: 1, sys_errno_: 1 };
-    let err: UvError = UvError(err);
+    let err: UvError = UvError(uvll::EOF);
     assert_eq!(err.to_str(), ~"EOF: end of file");
 }
 
-pub fn last_uv_error<H, W: Watcher + NativeHandle<*H>>(watcher: &W) -> UvError {
-    unsafe {
-        let loop_ = watcher.event_loop();
-        UvError(uvll::last_error(loop_.native_handle()))
-    }
-}
-
 pub fn uv_error_to_io_error(uverr: UvError) -> IoError {
     unsafe {
         // Importing error constants
@@ -257,10 +249,10 @@ pub fn uv_error_to_io_error(uverr: UvError) -> IoError {
         use rt::io::*;
 
         // uv error descriptions are static
-        let c_desc = uvll::strerror(&*uverr);
+        let c_desc = uvll::strerror(*uverr);
         let desc = str::raw::c_str_to_static_slice(c_desc);
 
-        let kind = match uverr.code {
+        let kind = match *uverr {
             UNKNOWN => OtherIoError,
             OK => OtherIoError,
             EOF => EndOfFile,
@@ -268,8 +260,8 @@ pub fn uv_error_to_io_error(uverr: UvError) -> IoError {
             ECONNREFUSED => ConnectionRefused,
             ECONNRESET => ConnectionReset,
             EPIPE => BrokenPipe,
-            _ => {
-                rtdebug!("uverr.code %u", uverr.code as uint);
+            err => {
+                rtdebug!("uverr.code %d", err as int);
                 // XXX: Need to map remaining uv error types
                 OtherIoError
             }
@@ -284,30 +276,12 @@ pub fn uv_error_to_io_error(uverr: UvError) -> IoError {
 }
 
 /// Given a uv handle, convert a callback status to a UvError
-pub fn status_to_maybe_uv_error_with_loop(
-    loop_: *uvll::uv_loop_t,
-    status: c_int) -> Option<UvError> {
-    if status != -1 {
+pub fn status_to_maybe_uv_error(status: c_int) -> Option<UvError>
+{
+    if status >= 0 {
         None
     } else {
-        unsafe {
-            rtdebug!("loop: %x", loop_ as uint);
-            let err = uvll::last_error(loop_);
-            Some(UvError(err))
-        }
-    }
-}
-/// Given a uv handle, convert a callback status to a UvError
-pub fn status_to_maybe_uv_error<T, U: Watcher + NativeHandle<*T>>(handle: U,
-                                                                 status: c_int) -> Option<UvError> {
-    if status != -1 {
-        None
-    } else {
-        unsafe {
-            rtdebug!("handle: %x", handle.native_handle() as uint);
-            let loop_ = uvll::get_loop_for_uv_handle(handle.native_handle());
-            status_to_maybe_uv_error_with_loop(loop_, status)
-        }
+        Some(UvError(status))
     }
 }
 
diff --git a/src/libstd/rt/uv/net.rs b/src/libstd/rt/uv/net.rs
index 9d4eb8f6302..2535e40ba4f 100644
--- a/src/libstd/rt/uv/net.rs
+++ b/src/libstd/rt/uv/net.rs
@@ -16,7 +16,6 @@ use rt::uv::{AllocCallback, ConnectionCallback, ReadCallback, UdpReceiveCallback
 use rt::uv::{Loop, Watcher, Request, UvError, Buf, NativeHandle, NullCallback,
              status_to_maybe_uv_error};
 use rt::io::net::ip::{SocketAddr, Ipv4Addr, Ipv6Addr};
-use rt::uv::last_uv_error;
 use vec;
 use str;
 use from_str::{FromStr};
@@ -161,7 +160,7 @@ impl StreamWatcher {
             rtdebug!("buf len: %d", buf.len as int);
             let mut stream_watcher: StreamWatcher = NativeHandle::from_native_handle(stream);
             let cb = stream_watcher.get_watcher_data().read_cb.get_ref();
-            let status = status_to_maybe_uv_error(stream_watcher, nread as c_int);
+            let status = status_to_maybe_uv_error(nread as c_int);
             (*cb)(stream_watcher, nread as int, buf, status);
         }
     }
@@ -191,7 +190,7 @@ impl StreamWatcher {
             let mut stream_watcher = write_request.stream();
             write_request.delete();
             let cb = stream_watcher.get_watcher_data().write_cb.take_unwrap();
-            let status = status_to_maybe_uv_error(stream_watcher, status);
+            let status = status_to_maybe_uv_error(status);
             cb(stream_watcher, status);
         }
     }
@@ -256,7 +255,7 @@ impl TcpWatcher {
             };
             match result {
                 0 => Ok(()),
-                _ => Err(last_uv_error(self)),
+                _ => Err(UvError(result)),
             }
         }
     }
@@ -284,7 +283,7 @@ impl TcpWatcher {
                 let mut stream_watcher = connect_request.stream();
                 connect_request.delete();
                 let cb = stream_watcher.get_watcher_data().connect_cb.take_unwrap();
-                let status = status_to_maybe_uv_error(stream_watcher, status);
+                let status = status_to_maybe_uv_error(status);
                 cb(stream_watcher, status);
             }
         }
@@ -307,7 +306,7 @@ impl TcpWatcher {
             rtdebug!("connection_cb");
             let mut stream_watcher: StreamWatcher = NativeHandle::from_native_handle(handle);
             let cb = stream_watcher.get_watcher_data().connect_cb.get_ref();
-            let status = status_to_maybe_uv_error(stream_watcher, status);
+            let status = status_to_maybe_uv_error(status);
             (*cb)(stream_watcher, status);
         }
     }
@@ -351,7 +350,7 @@ impl UdpWatcher {
             };
             match result {
                 0 => Ok(()),
-                _ => Err(last_uv_error(self)),
+                _ => Err(UvError(result)),
             }
         }
     }
@@ -384,7 +383,7 @@ impl UdpWatcher {
             rtdebug!("buf len: %d", buf.len as int);
             let mut udp_watcher: UdpWatcher = NativeHandle::from_native_handle(handle);
             let cb = udp_watcher.get_watcher_data().udp_recv_cb.get_ref();
-            let status = status_to_maybe_uv_error(udp_watcher, nread as c_int);
+            let status = status_to_maybe_uv_error(nread as c_int);
             let addr = uv_socket_addr_to_socket_addr(sockaddr_to_UvSocketAddr(addr));
             (*cb)(udp_watcher, nread as int, buf, addr, flags as uint, status);
         }
@@ -419,7 +418,7 @@ impl UdpWatcher {
             let mut udp_watcher = send_request.handle();
             send_request.delete();
             let cb = udp_watcher.get_watcher_data().udp_send_cb.take_unwrap();
-            let status = status_to_maybe_uv_error(udp_watcher, status);
+            let status = status_to_maybe_uv_error(status);
             cb(udp_watcher, status);
         }
     }
diff --git a/src/libstd/rt/uv/timer.rs b/src/libstd/rt/uv/timer.rs
index eaa5e77a6da..7b09cf2eb0e 100644
--- a/src/libstd/rt/uv/timer.rs
+++ b/src/libstd/rt/uv/timer.rs
@@ -43,7 +43,7 @@ impl TimerWatcher {
             let mut watcher: TimerWatcher = NativeHandle::from_native_handle(handle);
             let data = watcher.get_watcher_data();
             let cb = data.timer_cb.get_ref();
-            let status = status_to_maybe_uv_error(watcher, status);
+            let status = status_to_maybe_uv_error(status);
             (*cb)(watcher, status);
         }
     }
diff --git a/src/libstd/rt/uv/uvio.rs b/src/libstd/rt/uv/uvio.rs
index c22674995de..c9b12e47f92 100644
--- a/src/libstd/rt/uv/uvio.rs
+++ b/src/libstd/rt/uv/uvio.rs
@@ -154,7 +154,7 @@ fn socket_name<T, U: Watcher + NativeHandle<*T>>(sk: SocketNameKind,
     };
 
     if r != 0 {
-        let status = status_to_maybe_uv_error(handle, r);
+        let status = status_to_maybe_uv_error(r);
         return Err(uv_error_to_io_error(status.unwrap()));
     }
 
@@ -728,7 +728,7 @@ impl RtioTcpAcceptor for UvTcpAcceptor {
                 uvll::tcp_simultaneous_accepts(self_.listener.watcher.native_handle(), 1 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.listener.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -741,7 +741,7 @@ impl RtioTcpAcceptor for UvTcpAcceptor {
                 uvll::tcp_simultaneous_accepts(self_.listener.watcher.native_handle(), 0 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.listener.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -862,7 +862,7 @@ impl RtioTcpStream for UvTcpStream {
         do self.home_for_io |self_| {
             let r = unsafe { uvll::tcp_nodelay(self_.watcher.native_handle(), 0 as c_int) };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -873,7 +873,7 @@ impl RtioTcpStream for UvTcpStream {
         do self.home_for_io |self_| {
             let r = unsafe { uvll::tcp_nodelay(self_.watcher.native_handle(), 1 as c_int) };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -887,7 +887,7 @@ impl RtioTcpStream for UvTcpStream {
                                     delay_in_seconds as c_uint)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -900,7 +900,7 @@ impl RtioTcpStream for UvTcpStream {
                 uvll::tcp_keepalive(self_.watcher.native_handle(), 0 as c_int, 0 as c_uint)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1012,7 +1012,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 }
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1028,7 +1028,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 }
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1042,7 +1042,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_multicast_loop(self_.watcher.native_handle(), 1 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1056,7 +1056,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_multicast_loop(self_.watcher.native_handle(), 0 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1070,7 +1070,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_multicast_ttl(self_.watcher.native_handle(), ttl as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1084,7 +1084,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_ttl(self_.watcher.native_handle(), ttl as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1098,7 +1098,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_broadcast(self_.watcher.native_handle(), 1 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
@@ -1112,7 +1112,7 @@ impl RtioUdpSocket for UvUdpSocket {
                 uvll::udp_set_broadcast(self_.watcher.native_handle(), 0 as c_int)
             };
 
-            match status_to_maybe_uv_error(self_.watcher, r) {
+            match status_to_maybe_uv_error(r) {
                 Some(err) => Err(uv_error_to_io_error(err)),
                 None => Ok(())
             }
diff --git a/src/libstd/rt/uv/uvll.rs b/src/libstd/rt/uv/uvll.rs
index 08e9bc062ce..4ef97677bd3 100644
--- a/src/libstd/rt/uv/uvll.rs
+++ b/src/libstd/rt/uv/uvll.rs
@@ -37,21 +37,34 @@ use libc::{malloc, free};
 use libc;
 use prelude::*;
 use ptr;
-use str;
 use vec;
 
-pub static UNKNOWN: c_int = -1;
+pub use self::errors::*;
+
 pub static OK: c_int = 0;
-pub static EOF: c_int = 1;
-pub static EADDRINFO: c_int = 2;
-pub static EACCES: c_int = 3;
-pub static ECONNREFUSED: c_int = 12;
-pub static ECONNRESET: c_int = 13;
-pub static EPIPE: c_int = 36;
+pub static EOF: c_int = -4095;
+pub static UNKNOWN: c_int = -4094;
+
+// uv-errno.h redefines error codes for windows, but not for unix...
+
+#[cfg(windows)]
+pub mod errors {
+    use libc::c_int;
 
-pub struct uv_err_t {
-    code: c_int,
-    sys_errno_: c_int
+    pub static EACCES: c_int = -4093;
+    pub static ECONNREFUSED: c_int = -4079;
+    pub static ECONNRESET: c_int = -4078;
+    pub static EPIPE: c_int = -4048;
+}
+#[cfg(not(windows))]
+pub mod errors {
+    use libc;
+    use libc::c_int;
+
+    pub static EACCES: c_int = -libc::EACCES;
+    pub static ECONNREFUSED: c_int = -libc::ECONNREFUSED;
+    pub static ECONNRESET: c_int = -libc::ECONNRESET;
+    pub static EPIPE: c_int = -libc::EPIPE;
 }
 
 pub struct uv_buf_t {
@@ -537,20 +550,12 @@ pub unsafe fn read_stop(stream: *uv_stream_t) -> c_int {
     return rust_uv_read_stop(stream as *c_void);
 }
 
-pub unsafe fn last_error(loop_handle: *c_void) -> uv_err_t {
-    #[fixed_stack_segment]; #[inline(never)];
-
-    return rust_uv_last_error(loop_handle);
-}
-
-pub unsafe fn strerror(err: *uv_err_t) -> *c_char {
+pub unsafe fn strerror(err: c_int) -> *c_char {
     #[fixed_stack_segment]; #[inline(never)];
-
     return rust_uv_strerror(err);
 }
-pub unsafe fn err_name(err: *uv_err_t) -> *c_char {
+pub unsafe fn err_name(err: c_int) -> *c_char {
     #[fixed_stack_segment]; #[inline(never)];
-
     return rust_uv_err_name(err);
 }
 
@@ -787,23 +792,6 @@ pub unsafe fn freeaddrinfo(ai: *addrinfo) {
     rust_uv_freeaddrinfo(ai);
 }
 
-pub unsafe fn get_last_err_info(uv_loop: *c_void) -> ~str {
-    let err = last_error(uv_loop);
-    let err_ptr = ptr::to_unsafe_ptr(&err);
-    let err_name = str::raw::from_c_str(err_name(err_ptr));
-    let err_msg = str::raw::from_c_str(strerror(err_ptr));
-    return fmt!("LIBUV ERROR: name: %s msg: %s",
-                    err_name, err_msg);
-}
-
-pub unsafe fn get_last_err_data(uv_loop: *c_void) -> uv_err_data {
-    let err = last_error(uv_loop);
-    let err_ptr = ptr::to_unsafe_ptr(&err);
-    let err_name = str::raw::from_c_str(err_name(err_ptr));
-    let err_msg = str::raw::from_c_str(strerror(err_ptr));
-    uv_err_data { err_name: err_name, err_msg: err_msg }
-}
-
 pub struct uv_err_data {
     err_name: ~str,
     err_msg: ~str,
@@ -835,9 +823,8 @@ extern {
                           cb: uv_async_cb) -> c_int;
     fn rust_uv_tcp_init(loop_handle: *c_void, handle_ptr: *uv_tcp_t) -> c_int;
     fn rust_uv_buf_init(out_buf: *uv_buf_t, base: *u8, len: size_t);
-    fn rust_uv_last_error(loop_handle: *c_void) -> uv_err_t;
-    fn rust_uv_strerror(err: *uv_err_t) -> *c_char;
-    fn rust_uv_err_name(err: *uv_err_t) -> *c_char;
+    fn rust_uv_strerror(err: c_int) -> *c_char;
+    fn rust_uv_err_name(err: c_int) -> *c_char;
     fn rust_uv_ip4_addrp(ip: *u8, port: c_int) -> *sockaddr_in;
     fn rust_uv_ip6_addrp(ip: *u8, port: c_int) -> *sockaddr_in6;
     fn rust_uv_free_ip4_addr(addr: *sockaddr_in);