diff --git a/src/libextra/time.rs b/src/libextra/time.rs
index d51d1c2178571..ff9f8b2c5810b 100644
--- a/src/libextra/time.rs
+++ b/src/libextra/time.rs
@@ -19,8 +19,7 @@ static NSEC_PER_SEC: i32 = 1_000_000_000_i32;
 pub mod rustrt {
     use super::Tm;
 
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         pub fn get_time(sec: &mut i64, nsec: &mut i32);
         pub fn precise_time_ns(ns: &mut u64);
         pub fn rust_tzset();
diff --git a/src/libextra/unicode.rs b/src/libextra/unicode.rs
index 3957551c84639..1f85003226668 100644
--- a/src/libextra/unicode.rs
+++ b/src/libextra/unicode.rs
@@ -162,8 +162,7 @@ pub mod icu {
 
         // #[link_name = "icuuc"]
         #[link_args = "-licuuc"]
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             pub fn u_hasBinaryProperty(c: UChar32, which: UProperty) -> UBool;
             pub fn u_isdigit(c: UChar32) -> UBool;
             pub fn u_islower(c: UChar32) -> UBool;
diff --git a/src/librustc/lib/llvm.rs b/src/librustc/lib/llvm.rs
index 49798288d40d0..7fc316b2d9373 100644
--- a/src/librustc/lib/llvm.rs
+++ b/src/librustc/lib/llvm.rs
@@ -298,8 +298,7 @@ pub mod llvm {
 
     #[link_args = "-Lrustllvm -lrustllvm"]
     #[link_name = "rustllvm"]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         /* Create and destroy contexts. */
         #[fast_ffi]
         pub fn LLVMContextCreate() -> ContextRef;
diff --git a/src/libstd/io.rs b/src/libstd/io.rs
index 859cf20fa4184..74959f180c4ec 100644
--- a/src/libstd/io.rs
+++ b/src/libstd/io.rs
@@ -76,9 +76,8 @@ pub type fd_t = c_int;
 pub mod rustrt {
     use libc;
 
-    #[abi = "cdecl"]
     #[link_name = "rustrt"]
-    extern {
+    extern "cdecl" {
         pub fn rust_get_stdin() -> *libc::FILE;
         pub fn rust_get_stdout() -> *libc::FILE;
         pub fn rust_get_stderr() -> *libc::FILE;
diff --git a/src/libstd/libc.rs b/src/libstd/libc.rs
index e772ade135ec3..f8ae79e7990fa 100644
--- a/src/libstd/libc.rs
+++ b/src/libstd/libc.rs
@@ -2664,11 +2664,10 @@ pub mod funcs {
 
     pub mod c95 {
         #[nolink]
-        #[abi = "cdecl"]
         pub mod ctype {
             use libc::types::os::arch::c95::{c_char, c_int};
 
-            extern {
+            extern "cdecl" {
                 pub fn isalnum(c: c_int) -> c_int;
                 pub fn isalpha(c: c_int) -> c_int;
                 pub fn iscntrl(c: c_int) -> c_int;
@@ -2686,12 +2685,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stdio {
             use libc::types::common::c95::{FILE, c_void, fpos_t};
             use libc::types::os::arch::c95::{c_char, c_int, c_long, size_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn fopen(filename: *c_char, mode: *c_char) -> *FILE;
                 pub fn freopen(filename: *c_char, mode: *c_char, file: *FILE)
                                -> *FILE;
@@ -2748,14 +2746,13 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stdlib {
             use libc::types::common::c95::c_void;
             use libc::types::os::arch::c95::{c_char, c_double, c_int};
             use libc::types::os::arch::c95::{c_long, c_uint, c_ulong};
             use libc::types::os::arch::c95::{size_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn abs(i: c_int) -> c_int;
                 pub fn labs(i: c_long) -> c_long;
                 // Omitted: div, ldiv (return pub type incomplete).
@@ -2786,13 +2783,12 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod string {
             use libc::types::common::c95::c_void;
             use libc::types::os::arch::c95::{c_char, c_int, size_t};
             use libc::types::os::arch::c95::{wchar_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn strcpy(dst: *c_char, src: *c_char) -> *c_char;
                 pub fn strncpy(dst: *c_char, src: *c_char, n: size_t)
                                -> *c_char;
@@ -2836,12 +2832,11 @@ pub mod funcs {
     #[cfg(target_os = "win32")]
     pub mod posix88 {
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stat_ {
             use libc::types::os::common::posix01::stat;
             use libc::types::os::arch::c95::{c_int, c_char};
 
-            extern {
+            extern "cdecl" {
                 #[link_name = "_chmod"]
                 pub fn chmod(path: *c_char, mode: c_int) -> c_int;
                 #[link_name = "_mkdir"]
@@ -2854,12 +2849,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stdio {
             use libc::types::common::c95::FILE;
             use libc::types::os::arch::c95::{c_int, c_char};
 
-            extern {
+            extern "cdecl" {
                 #[link_name = "_popen"]
                 pub fn popen(command: *c_char, mode: *c_char) -> *FILE;
                 #[link_name = "_pclose"]
@@ -2873,10 +2867,9 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod fcntl {
             use libc::types::os::arch::c95::{c_int, c_char};
-            extern {
+            extern "cdecl" {
                 #[link_name = "_open"]
                 pub fn open(path: *c_char, oflag: c_int, mode: c_int)
                             -> c_int;
@@ -2886,20 +2879,18 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod dirent {
             // Not supplied at all.
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod unistd {
             use libc::types::common::c95::c_void;
             use libc::types::os::arch::c95::{c_int, c_uint, c_char,
                                              c_long, size_t};
             use libc::types::os::arch::c99::intptr_t;
 
-            extern {
+            extern "cdecl" {
                 #[link_name = "_access"]
                 pub fn access(path: *c_char, amode: c_int) -> c_int;
                 #[link_name = "_chdir"]
@@ -2962,8 +2953,7 @@ pub mod funcs {
             use libc::types::os::arch::posix88::mode_t;
 
             #[nolink]
-            #[abi = "cdecl"]
-            extern {
+            extern "cdecl" {
                 pub fn chmod(path: *c_char, mode: mode_t) -> c_int;
                 pub fn fchmod(fd: c_int, mode: mode_t) -> c_int;
 
@@ -2991,12 +2981,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stdio {
             use libc::types::common::c95::FILE;
             use libc::types::os::arch::c95::{c_char, c_int};
 
-            extern {
+            extern "cdecl" {
                 pub fn popen(command: *c_char, mode: *c_char) -> *FILE;
                 pub fn pclose(stream: *FILE) -> c_int;
                 pub fn fdopen(fd: c_int, mode: *c_char) -> *FILE;
@@ -3005,12 +2994,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod fcntl {
             use libc::types::os::arch::c95::{c_char, c_int};
             use libc::types::os::arch::posix88::mode_t;
 
-            extern {
+            extern "cdecl" {
                 pub fn open(path: *c_char, oflag: c_int, mode: c_int)
                             -> c_int;
                 pub fn creat(path: *c_char, mode: mode_t) -> c_int;
@@ -3019,7 +3007,6 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod dirent {
             use libc::types::common::posix88::{DIR, dirent_t};
             use libc::types::os::arch::c95::{c_char, c_int, c_long};
@@ -3039,12 +3026,12 @@ pub mod funcs {
                 rust_readdir(dirp)
             }
 
-            extern {
+            extern "cdecl" {
                 fn rust_opendir(dirname: *c_char) -> *DIR;
                 fn rust_readdir(dirp: *DIR) -> *dirent_t;
             }
 
-            extern {
+            extern "cdecl" {
                 pub fn closedir(dirp: *DIR) -> c_int;
                 pub fn rewinddir(dirp: *DIR);
                 pub fn seekdir(dirp: *DIR, loc: c_long);
@@ -3053,7 +3040,6 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod unistd {
             use libc::types::common::c95::c_void;
             use libc::types::os::arch::c95::{c_char, c_int, c_long, c_uint};
@@ -3061,7 +3047,7 @@ pub mod funcs {
             use libc::types::os::arch::posix88::{gid_t, off_t, pid_t};
             use libc::types::os::arch::posix88::{ssize_t, uid_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn access(path: *c_char, amode: c_int) -> c_int;
                 pub fn alarm(seconds: c_uint) -> c_uint;
                 pub fn chdir(dir: *c_char) -> c_int;
@@ -3115,24 +3101,22 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod signal {
             use libc::types::os::arch::c95::{c_int};
             use libc::types::os::arch::posix88::{pid_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn kill(pid: pid_t, sig: c_int) -> c_int;
             }
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod mman {
             use libc::types::common::c95::{c_void};
             use libc::types::os::arch::c95::{size_t, c_int, c_char};
             use libc::types::os::arch::posix88::{mode_t, off_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn mlock(addr: *c_void, len: size_t) -> c_int;
                 pub fn munlock(addr: *c_void, len: size_t) -> c_int;
                 pub fn mlockall(flags: c_int) -> c_int;
@@ -3165,12 +3149,11 @@ pub mod funcs {
     #[cfg(target_os = "freebsd")]
     pub mod posix01 {
         #[nolink]
-        #[abi = "cdecl"]
         pub mod stat_ {
             use libc::types::os::arch::c95::{c_char, c_int};
             use libc::types::os::arch::posix01::stat;
 
-            extern {
+            extern "cdecl" {
                 #[cfg(target_os = "linux")]
                 #[cfg(target_os = "freebsd")]
                 #[cfg(target_os = "android")]
@@ -3183,12 +3166,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod unistd {
             use libc::types::os::arch::c95::{c_char, c_int, size_t};
             use libc::types::os::arch::posix88::{ssize_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn readlink(path: *c_char,
                                 buf: *mut c_char,
                                 bufsz: size_t)
@@ -3210,25 +3192,23 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod wait {
             use libc::types::os::arch::c95::{c_int};
             use libc::types::os::arch::posix88::{pid_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn waitpid(pid: pid_t, status: *mut c_int, options: c_int)
                                -> pid_t;
             }
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod glob {
             use libc::types::os::arch::c95::{c_char, c_int};
             use libc::types::os::common::posix01::{glob_t};
             use option::Option;
 
-            extern {
+            extern "cdecl" {
                 pub fn glob(pattern: *c_char,
                             flags: c_int,
                             errfunc: Option<extern "C" fn(epath: *c_char, errno: int) -> int>,
@@ -3238,12 +3218,11 @@ pub mod funcs {
         }
 
         #[nolink]
-        #[abi = "cdecl"]
         pub mod mman {
             use libc::types::common::c95::{c_void};
             use libc::types::os::arch::c95::{c_int, size_t};
 
-            extern {
+            extern "cdecl" {
                 pub fn posix_madvise(addr: *c_void,
                                      len: size_t,
                                      advice: c_int)
@@ -3286,8 +3265,7 @@ pub mod funcs {
         use libc::types::os::arch::c95::{c_char, c_uchar, c_int, c_uint,
                                          size_t};
 
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             pub fn sysctl(name: *c_int,
                           namelen: c_uint,
                           oldp: *mut c_void,
@@ -3320,8 +3298,7 @@ pub mod funcs {
         use libc::types::common::c95::{c_void};
         use libc::types::os::arch::c95::{c_uchar, c_int, size_t};
 
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             pub fn getdtablesize() -> c_int;
             pub fn madvise(addr: *c_void, len: size_t, advice: c_int)
                            -> c_int;
@@ -3340,8 +3317,7 @@ pub mod funcs {
     pub mod extra {
         use libc::types::os::arch::c95::{c_char, c_int};
 
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             pub fn _NSGetExecutablePath(buf: *mut c_char, bufsize: *mut u32)
                                         -> c_int;
         }
@@ -3373,7 +3349,6 @@ pub mod funcs {
             use libc::types::os::arch::extra::{HANDLE, LPHANDLE};
 
             #[cfg(target_arch = "x86")]
-            #[abi = "stdcall"]
             extern "stdcall" {
                 pub fn GetEnvironmentVariableW(n: LPCWSTR,
                                                v: LPWSTR,
@@ -3587,9 +3562,8 @@ pub mod funcs {
         pub mod msvcrt {
             use libc::types::os::arch::c95::{c_int, c_long};
 
-            #[abi = "cdecl"]
             #[nolink]
-            extern {
+            extern "cdecl" {
                 #[link_name = "_commit"]
                 pub fn commit(fd: c_int) -> c_int;
 
diff --git a/src/libstd/num/cmath.rs b/src/libstd/num/cmath.rs
index 38923c5bda45d..9a16a127378c8 100644
--- a/src/libstd/num/cmath.rs
+++ b/src/libstd/num/cmath.rs
@@ -18,8 +18,7 @@ pub mod c_double_utils {
     use libc::{c_double, c_int};
 
     #[link_name = "m"]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         // Alpabetically sorted by link_name
 
         pub fn acos(n: c_double) -> c_double;
@@ -107,8 +106,7 @@ pub mod c_float_utils {
     use libc::{c_float, c_int};
 
     #[link_name = "m"]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         // Alpabetically sorted by link_name
 
         #[link_name="acosf"]
diff --git a/src/libstd/os.rs b/src/libstd/os.rs
index 08a1f879e7804..2a3ad98c02b43 100644
--- a/src/libstd/os.rs
+++ b/src/libstd/os.rs
@@ -1041,7 +1041,6 @@ pub fn errno() -> uint {
 
     #[cfg(target_arch = "x86")]
     #[link_name = "kernel32"]
-    #[abi = "stdcall"]
     extern "stdcall" {
         fn GetLastError() -> DWORD;
     }
@@ -1120,7 +1119,6 @@ pub fn last_os_error() -> ~str {
 
         #[cfg(target_arch = "x86")]
         #[link_name = "kernel32"]
-        #[abi = "stdcall"]
         extern "stdcall" {
             fn FormatMessageW(flags: DWORD,
                               lpSrc: LPVOID,
@@ -1260,7 +1258,6 @@ type LPCWSTR = *u16;
 
 #[cfg(windows, target_arch = "x86")]
 #[link_name="kernel32"]
-#[abi="stdcall"]
 extern "stdcall" {
     fn GetCommandLineW() -> LPCWSTR;
     fn LocalFree(ptr: *c_void);
@@ -1275,7 +1272,6 @@ extern {
 
 #[cfg(windows, target_arch = "x86")]
 #[link_name="shell32"]
-#[abi="stdcall"]
 extern "stdcall" {
     fn CommandLineToArgvW(lpCmdLine: LPCWSTR, pNumArgs: *mut c_int) -> **u16;
 }
diff --git a/src/libstd/rand/mod.rs b/src/libstd/rand/mod.rs
index 2b9727f6eb0e4..72f194ee50c06 100644
--- a/src/libstd/rand/mod.rs
+++ b/src/libstd/rand/mod.rs
@@ -237,11 +237,10 @@ impl<T: Rand + 'static> Rand for @T {
     fn rand<R: Rng>(rng: &mut R) -> @T { @rng.gen() }
 }
 
-#[abi = "cdecl"]
 pub mod rustrt {
     use libc::size_t;
 
-    extern {
+    extern "cdecl" {
         pub fn rand_gen_seed(buf: *mut u8, sz: size_t);
     }
 }
diff --git a/src/libstd/rt/thread_local_storage.rs b/src/libstd/rt/thread_local_storage.rs
index b2c2c670b5558..4a8bb27f3e78d 100644
--- a/src/libstd/rt/thread_local_storage.rs
+++ b/src/libstd/rt/thread_local_storage.rs
@@ -87,7 +87,6 @@ pub unsafe fn get(key: Key) -> *mut c_void {
 }
 
 #[cfg(windows, target_arch = "x86")]
-#[abi = "stdcall"]
 extern "stdcall" {
        fn TlsAlloc() -> DWORD;
        fn TlsSetValue(dwTlsIndex: DWORD, lpTlsvalue: LPVOID) -> BOOL;
diff --git a/src/libstd/run.rs b/src/libstd/run.rs
index 362eab17fe70a..ae2220b85b67f 100644
--- a/src/libstd/run.rs
+++ b/src/libstd/run.rs
@@ -643,8 +643,7 @@ fn spawn_process_os(prog: &str, args: &[~str],
     use libc::funcs::bsd44::getdtablesize;
 
     mod rustrt {
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             pub fn rust_unset_sigprocmask();
         }
     }
diff --git a/src/libstd/unstable/intrinsics.rs b/src/libstd/unstable/intrinsics.rs
index 349739a5ea63d..58f7d23a19aff 100644
--- a/src/libstd/unstable/intrinsics.rs
+++ b/src/libstd/unstable/intrinsics.rs
@@ -171,7 +171,6 @@ pub trait TyVisitor {
     fn visit_closure_ptr(&mut self, ck: uint) -> bool;
 }
 
-#[abi = "rust-intrinsic"]
 extern "rust-intrinsic" {
 
     /// Atomic compare and exchange, sequentially consistent.
diff --git a/src/test/auxiliary/anon-extern-mod-cross-crate-1.rs b/src/test/auxiliary/anon-extern-mod-cross-crate-1.rs
index 3c73bd1b7f20e..987648ca6f2e7 100644
--- a/src/test/auxiliary/anon-extern-mod-cross-crate-1.rs
+++ b/src/test/auxiliary/anon-extern-mod-cross-crate-1.rs
@@ -8,7 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[abi = "cdecl"];
 #[link_name = "rustrt"];
 #[link(name = "anonexternmod",
        vers = "0.1")];
@@ -17,6 +16,6 @@
 
 use std::libc;
 
-extern {
+extern "cdecl" {
     pub fn rust_get_test_int() -> libc::intptr_t;
 }
diff --git a/src/test/auxiliary/cci_intrinsic.rs b/src/test/auxiliary/cci_intrinsic.rs
index ebcb1e7fef9d0..9e69715d1cb21 100644
--- a/src/test/auxiliary/cci_intrinsic.rs
+++ b/src/test/auxiliary/cci_intrinsic.rs
@@ -9,7 +9,6 @@
 // except according to those terms.
 
 pub mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn atomic_cxchg(dst: &mut int, old: int, src: int) -> int;
         pub fn atomic_cxchg_acq(dst: &mut int, old: int, src: int) -> int;
diff --git a/src/test/compile-fail/foreign-unsafe-fn-called.rs b/src/test/compile-fail/foreign-unsafe-fn-called.rs
index 6c74c860a4b1d..f6dca262d4c12 100644
--- a/src/test/compile-fail/foreign-unsafe-fn-called.rs
+++ b/src/test/compile-fail/foreign-unsafe-fn-called.rs
@@ -11,8 +11,7 @@
 
 
 mod test {
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         pub fn free();
     }
 }
diff --git a/src/test/run-pass/anon-extern-mod.rs b/src/test/run-pass/anon-extern-mod.rs
index ed9caa1f65e2f..ef951de6c4df5 100644
--- a/src/test/run-pass/anon-extern-mod.rs
+++ b/src/test/run-pass/anon-extern-mod.rs
@@ -10,9 +10,8 @@
 
 use std::libc;
 
-#[abi = "cdecl"]
 #[link_name = "rustrt"]
-extern {
+extern "cdecl" {
     fn rust_get_test_int() -> libc::intptr_t;
 }
 
diff --git a/src/test/run-pass/c-stack-as-value.rs b/src/test/run-pass/c-stack-as-value.rs
index ac7b221cff81c..9a38702efbd58 100644
--- a/src/test/run-pass/c-stack-as-value.rs
+++ b/src/test/run-pass/c-stack-as-value.rs
@@ -11,8 +11,7 @@
 mod rustrt {
     use std::libc;
 
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         pub fn rust_get_test_int() -> libc::intptr_t;
     }
 }
diff --git a/src/test/run-pass/c-stack-returning-int64.rs b/src/test/run-pass/c-stack-returning-int64.rs
index f140c4621aa27..7d7f0fc23fec9 100644
--- a/src/test/run-pass/c-stack-returning-int64.rs
+++ b/src/test/run-pass/c-stack-returning-int64.rs
@@ -11,9 +11,8 @@
 mod libc {
     use std::libc::{c_char, c_long, c_longlong};
 
-    #[abi = "cdecl"]
     #[nolink]
-    extern {
+    extern "cdecl" {
         pub fn atol(x: *c_char) -> c_long;
         pub fn atoll(x: *c_char) -> c_longlong;
     }
diff --git a/src/test/run-pass/conditional-compile.rs b/src/test/run-pass/conditional-compile.rs
index 00be4cd26f43a..dc10a0bbd7799 100644
--- a/src/test/run-pass/conditional-compile.rs
+++ b/src/test/run-pass/conditional-compile.rs
@@ -21,15 +21,13 @@ static b: bool = true;
 
 mod rustrt {
     #[cfg(bogus)]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         // This symbol doesn't exist and would be a link error if this
         // module was translated
         pub fn bogus();
     }
 
-    #[abi = "cdecl"]
-    extern {}
+    extern "cdecl" {}
 }
 
 #[cfg(bogus)]
@@ -109,8 +107,7 @@ fn test_in_fn_ctxt() {
 
 mod test_foreign_items {
     pub mod rustrt {
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             #[cfg(bogus)]
             pub fn rust_get_stdin() -> ~str;
             pub fn rust_get_stdin() -> ~str;
diff --git a/src/test/run-pass/foreign-dupe.rs b/src/test/run-pass/foreign-dupe.rs
index 3ff1ebb57322c..bd2274004b189 100644
--- a/src/test/run-pass/foreign-dupe.rs
+++ b/src/test/run-pass/foreign-dupe.rs
@@ -14,9 +14,8 @@
 mod rustrt1 {
     use std::libc;
 
-    #[abi = "cdecl"]
     #[link_name = "rustrt"]
-    extern {
+    extern "cdecl" {
         fn rust_get_test_int() -> libc::intptr_t;
     }
 }
@@ -24,9 +23,8 @@ mod rustrt1 {
 mod rustrt2 {
     use std::libc;
 
-    #[abi = "cdecl"]
     #[link_name = "rustrt"]
-    extern {
+    extern "cdecl" {
         fn rust_get_test_int() -> libc::intptr_t;
     }
 }
diff --git a/src/test/run-pass/foreign-fn-linkname.rs b/src/test/run-pass/foreign-fn-linkname.rs
index 57b59e4445e77..d037feab452db 100644
--- a/src/test/run-pass/foreign-fn-linkname.rs
+++ b/src/test/run-pass/foreign-fn-linkname.rs
@@ -14,8 +14,7 @@ mod libc {
     use std::libc::{c_char, size_t};
 
     #[nolink]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         #[link_name = "strlen"]
         pub fn my_strlen(str: *c_char) -> size_t;
     }
diff --git a/src/test/run-pass/foreign2.rs b/src/test/run-pass/foreign2.rs
index 2cc7e27077284..654b3b7d43aaa 100644
--- a/src/test/run-pass/foreign2.rs
+++ b/src/test/run-pass/foreign2.rs
@@ -9,31 +9,27 @@
 // except according to those terms.
 
 mod bar {
-    #[abi = "cdecl"]
     #[nolink]
-    extern {}
+    extern "cdecl" {}
 }
 
 mod zed {
-    #[abi = "cdecl"]
     #[nolink]
-    extern {}
+    extern "cdecl" {}
 }
 
 mod libc {
     use std::libc::{c_int, c_void, size_t, ssize_t};
 
-    #[abi = "cdecl"]
     #[nolink]
-    extern {
+    extern "cdecl" {
         pub fn write(fd: c_int, buf: *c_void, count: size_t) -> ssize_t;
     }
 }
 
 mod baz {
-    #[abi = "cdecl"]
     #[nolink]
-    extern {}
+    extern "cdecl" {}
 }
 
 pub fn main() { }
diff --git a/src/test/run-pass/intrinsic-alignment.rs b/src/test/run-pass/intrinsic-alignment.rs
index 90d4bd1e7aeca..051f92b165108 100644
--- a/src/test/run-pass/intrinsic-alignment.rs
+++ b/src/test/run-pass/intrinsic-alignment.rs
@@ -11,7 +11,6 @@
 // xfail-fast Does not work with main in a submodule
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn pref_align_of<T>() -> uint;
         pub fn min_align_of<T>() -> uint;
diff --git a/src/test/run-pass/intrinsic-atomics.rs b/src/test/run-pass/intrinsic-atomics.rs
index f1354cbb20f5d..2ec91ee440b86 100644
--- a/src/test/run-pass/intrinsic-atomics.rs
+++ b/src/test/run-pass/intrinsic-atomics.rs
@@ -9,7 +9,6 @@
 // except according to those terms.
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn atomic_cxchg(dst: &mut int, old: int, src: int) -> int;
         pub fn atomic_cxchg_acq(dst: &mut int, old: int, src: int) -> int;
diff --git a/src/test/run-pass/intrinsic-frame-address.rs b/src/test/run-pass/intrinsic-frame-address.rs
index 452104ec4a2aa..63635c7addfa0 100644
--- a/src/test/run-pass/intrinsic-frame-address.rs
+++ b/src/test/run-pass/intrinsic-frame-address.rs
@@ -11,7 +11,6 @@
 // xfail-fast
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn frame_address(f: &once fn(*u8));
     }
diff --git a/src/test/run-pass/intrinsic-move-val.rs b/src/test/run-pass/intrinsic-move-val.rs
index 90f352c845b5b..f328c48447810 100644
--- a/src/test/run-pass/intrinsic-move-val.rs
+++ b/src/test/run-pass/intrinsic-move-val.rs
@@ -9,7 +9,6 @@
 // except according to those terms.
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn move_val_init<T>(dst: &mut T, src: T);
         pub fn move_val<T>(dst: &mut T, src: T);
diff --git a/src/test/run-pass/intrinsic-uninit.rs b/src/test/run-pass/intrinsic-uninit.rs
index 993e277719765..1a4fd40fc68af 100644
--- a/src/test/run-pass/intrinsic-uninit.rs
+++ b/src/test/run-pass/intrinsic-uninit.rs
@@ -9,7 +9,6 @@
 // except according to those terms.
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         fn uninit<T>() -> T;
     }
diff --git a/src/test/run-pass/intrinsics-integer.rs b/src/test/run-pass/intrinsics-integer.rs
index 4b17a95cf661d..cd28d5921fb64 100644
--- a/src/test/run-pass/intrinsics-integer.rs
+++ b/src/test/run-pass/intrinsics-integer.rs
@@ -13,7 +13,6 @@
 extern mod extra;
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         fn ctpop8(x: i8) -> i8;
         fn ctpop16(x: i16) -> i16;
diff --git a/src/test/run-pass/intrinsics-math.rs b/src/test/run-pass/intrinsics-math.rs
index 62a01613c2065..ab1e1e8b5a8f0 100644
--- a/src/test/run-pass/intrinsics-math.rs
+++ b/src/test/run-pass/intrinsics-math.rs
@@ -11,7 +11,6 @@
 // except according to those terms.
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn sqrtf32(x: f32) -> f32;
         pub fn sqrtf64(x: f64) -> f64;
diff --git a/src/test/run-pass/issue-2214.rs b/src/test/run-pass/issue-2214.rs
index 1bb8a0008760b..298c4e7454d5f 100644
--- a/src/test/run-pass/issue-2214.rs
+++ b/src/test/run-pass/issue-2214.rs
@@ -30,8 +30,7 @@ mod m {
     use std::libc::{c_double, c_int};
 
     #[link_name = "m"]
-    #[abi = "cdecl"]
-    extern {
+    extern "cdecl" {
         #[cfg(unix)]
         #[link_name="lgamma_r"]
         pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
diff --git a/src/test/run-pass/item-attributes.rs b/src/test/run-pass/item-attributes.rs
index 29c1c63066047..ec9d574953376 100644
--- a/src/test/run-pass/item-attributes.rs
+++ b/src/test/run-pass/item-attributes.rs
@@ -39,8 +39,7 @@ mod test_single_attr_outer {
 
     pub mod rustrt {
         #[attr = "val"]
-        #[abi = "cdecl"]
-        extern {}
+        extern "cdecl" {}
     }
 }
 
@@ -60,8 +59,7 @@ mod test_multi_attr_outer {
     pub mod rustrt {
         #[attr1 = "val"]
         #[attr2 = "val"]
-        #[abi = "cdecl"]
-        extern {}
+        extern "cdecl" {}
     }
 
     #[attr1 = "val"]
@@ -83,8 +81,7 @@ mod test_stmt_single_attr_outer {
 
         mod rustrt {
             #[attr = "val"]
-            #[abi = "cdecl"]
-            extern {
+            extern "cdecl" {
             }
         }
     }
@@ -110,8 +107,7 @@ mod test_stmt_multi_attr_outer {
         pub mod rustrt {
             #[attr1 = "val"]
             #[attr2 = "val"]
-            #[abi = "cdecl"]
-            extern {
+            extern "cdecl" {
             }
         }
         */
@@ -169,8 +165,7 @@ mod test_foreign_items {
     pub mod rustrt {
         use std::libc;
 
-        #[abi = "cdecl"]
-        extern {
+        extern "cdecl" {
             #[attr];
 
             #[attr]
diff --git a/src/test/run-pass/morestack-address.rs b/src/test/run-pass/morestack-address.rs
index ef6bb4e93b2da..ebeb8927f6ed0 100644
--- a/src/test/run-pass/morestack-address.rs
+++ b/src/test/run-pass/morestack-address.rs
@@ -10,7 +10,6 @@
 
 mod rusti {
     #[nolink]
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn morestack_addr() -> *();
     }
diff --git a/src/test/run-pass/rec-align-u32.rs b/src/test/run-pass/rec-align-u32.rs
index 6c4d9915d85f9..49602a40e6519 100644
--- a/src/test/run-pass/rec-align-u32.rs
+++ b/src/test/run-pass/rec-align-u32.rs
@@ -15,7 +15,6 @@
 use std::sys;
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn pref_align_of<T>() -> uint;
         pub fn min_align_of<T>() -> uint;
diff --git a/src/test/run-pass/rec-align-u64.rs b/src/test/run-pass/rec-align-u64.rs
index c116353e9c917..4b8936d92acf1 100644
--- a/src/test/run-pass/rec-align-u64.rs
+++ b/src/test/run-pass/rec-align-u64.rs
@@ -15,7 +15,6 @@
 use std::sys;
 
 mod rusti {
-    #[abi = "rust-intrinsic"]
     extern "rust-intrinsic" {
         pub fn pref_align_of<T>() -> uint;
         pub fn min_align_of<T>() -> uint;
diff --git a/src/test/run-pass/x86stdcall2.rs b/src/test/run-pass/x86stdcall2.rs
index 3722dccf94b94..b16218a59f982 100644
--- a/src/test/run-pass/x86stdcall2.rs
+++ b/src/test/run-pass/x86stdcall2.rs
@@ -18,7 +18,6 @@ pub type BOOL = u8;
 mod kernel32 {
     use super::{HANDLE, DWORD, SIZE_T, LPVOID, BOOL};
 
-    #[abi = "stdcall"]
     extern "stdcall" {
         pub fn GetProcessHeap() -> HANDLE;
         pub fn HeapAlloc(hHeap: HANDLE, dwFlags: DWORD, dwBytes: SIZE_T)