---

yaml
---
r: 44167
b: refs/heads/snap-stage3
c: 24603af
h: refs/heads/master
i:
  44165: 6e8d494
  44163: 16cfb19
  44159: cf7bcbe
v: v3

Author: bors

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 19dfec2aaf746535de1521f68421f9980dbf25de
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: dc30cc356b2f6a75a3313be564927d2a74718f07
+refs/heads/snap-stage3: 24603afc937e3135ff10ca17c6f20dff9957eb4a
 refs/heads/try: ef355f6332f83371e4acf04fc4eb940ab41d78d3
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/src/libcore/os.rs

@@ -374,7 +374,6 @@ pub fn self_exe_path() -> Option<Path> {
                 let mib = ~[CTL_KERN as c_int,
                            KERN_PROC as c_int,
                            KERN_PROC_PATHNAME as c_int, -1 as c_int];
-                let mut sz = sz;
                 sysctl(vec::raw::to_ptr(mib), vec::len(mib) as c_uint,
                        buf as *mut c_void, &mut sz, ptr::null(),
                        0u as size_t) == (0 as c_int)

branches/snap-stage3/src/librustc/middle/typeck/check/_match.rs

@@ -362,6 +362,7 @@ pub fn check_pat(pcx: pat_ctxt, pat: @ast::pat, expected: ty::t) {
       ast::pat_ident(*) if pat_is_const(tcx.def_map, pat) => {
         let const_did = ast_util::def_id_of_def(tcx.def_map.get(&pat.id));
         let const_tpt = ty::lookup_item_type(tcx, const_did);
+        demand::suptype(fcx, pat.span, expected, const_tpt.ty);
         fcx.write_ty(pat.id, const_tpt.ty);
       }
       ast::pat_ident(bm, name, sub) if pat_is_binding(tcx.def_map, pat) => {

branches/snap-stage3/src/test/compile-fail/issue-4968.rs

@@ -0,0 +1,17 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Regression test for issue #4968
+
+const A: (int,int) = (4,2);
+fn main() {
+    match 42 { A => () } //~ ERROR mismatched types: expected `<VI0>` but found `(int,int)` (expected integral variable but found tuple)
+}
+