rustc_target: move in syntax::abi and flip dependency.

80 files changed, 106 insertions, 77 deletions

diff --git a/src/Cargo.lock b/src/Cargo.lock
index 878212d4ee4..e14b9da9713 100644
--- a/src/Cargo.lock
+++ b/src/Cargo.lock
@@ -1833,6 +1833,7 @@ version = "0.0.0"
 dependencies = [
  "rustc 0.0.0",
  "rustc_errors 0.0.0",
+ "rustc_target 0.0.0",
  "syntax 0.0.0",
  "syntax_pos 0.0.0",
 ]
@@ -1885,6 +1886,7 @@ name = "rustc_cratesio_shim"
 version = "0.0.0"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1896,6 +1898,7 @@ dependencies = [
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot_core 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_cratesio_shim 0.0.0",
  "serialize 0.0.0",
  "stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1966,6 +1969,7 @@ dependencies = [
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc 0.0.0",
  "rustc_mir 0.0.0",
+ "rustc_target 0.0.0",
  "syntax 0.0.0",
  "syntax_pos 0.0.0",
 ]
@@ -2106,6 +2110,7 @@ dependencies = [
  "rustc 0.0.0",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_data_structures 0.0.0",
+ "rustc_target 0.0.0",
  "rustc_typeck 0.0.0",
  "syntax 0.0.0",
  "syntax_pos 0.0.0",
@@ -2117,8 +2122,8 @@ version = "0.0.0"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_cratesio_shim 0.0.0",
  "serialize 0.0.0",
- "syntax 0.0.0",
 ]
 
 [[package]]
@@ -2204,6 +2209,7 @@ dependencies = [
  "rustc_data_structures 0.0.0",
  "rustc_errors 0.0.0",
  "rustc_platform_intrinsics 0.0.0",
+ "rustc_target 0.0.0",
  "syntax 0.0.0",
  "syntax_pos 0.0.0",
 ]
@@ -2542,9 +2548,9 @@ version = "0.0.0"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_cratesio_shim 0.0.0",
  "rustc_data_structures 0.0.0",
  "rustc_errors 0.0.0",
+ "rustc_target 0.0.0",
  "scoped-tls 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serialize 0.0.0",
  "syntax_pos 0.0.0",
@@ -2558,6 +2564,7 @@ dependencies = [
  "proc_macro 0.0.0",
  "rustc_data_structures 0.0.0",
  "rustc_errors 0.0.0",
+ "rustc_target 0.0.0",
  "syntax 0.0.0",
  "syntax_pos 0.0.0",
 ]
diff --git a/src/librustc/hir/intravisit.rs b/src/librustc/hir/intravisit.rs
index be9f8b8dac5..62f3f9f4486 100644
--- a/src/librustc/hir/intravisit.rs
+++ b/src/librustc/hir/intravisit.rs
@@ -41,7 +41,7 @@
 //! This order consistency is required in a few places in rustc, for
 //! example generator inference, and possibly also HIR borrowck.
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{NodeId, CRATE_NODE_ID, Name, Attribute};
 use syntax_pos::Span;
 use hir::*;
diff --git a/src/librustc/hir/map/blocks.rs b/src/librustc/hir/map/blocks.rs
index 1eaacdb1d7f..362c0bf07f7 100644
--- a/src/librustc/hir/map/blocks.rs
+++ b/src/librustc/hir/map/blocks.rs
@@ -25,7 +25,7 @@ use hir as ast;
 use hir::map::{self, Node};
 use hir::{Expr, FnDecl};
 use hir::intravisit::FnKind;
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast::{Attribute, Name, NodeId};
 use syntax_pos::Span;
 
diff --git a/src/librustc/hir/map/mod.rs b/src/librustc/hir/map/mod.rs
index 9520ed32af9..a9613a60a57 100644
--- a/src/librustc/hir/map/mod.rs
+++ b/src/librustc/hir/map/mod.rs
@@ -21,7 +21,7 @@ use hir::def_id::{CRATE_DEF_INDEX, DefId, LocalDefId, DefIndexAddressSpace};
 
 use middle::cstore::CrateStore;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{self, Name, NodeId, CRATE_NODE_ID};
 use syntax::codemap::Spanned;
 use syntax::ext::base::MacroKind;
diff --git a/src/librustc/hir/mod.rs b/src/librustc/hir/mod.rs
index f471ffb072d..0dc89d64bd5 100644
--- a/src/librustc/hir/mod.rs
+++ b/src/librustc/hir/mod.rs
@@ -34,7 +34,7 @@ use mir::mono::Linkage;
 
 use syntax_pos::{Span, DUMMY_SP};
 use syntax::codemap::{self, Spanned};
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{self, Name, NodeId, DUMMY_NODE_ID, AsmDialect};
 use syntax::ast::{Attribute, Lit, StrStyle, FloatTy, IntTy, UintTy, MetaItem};
 use syntax::attr::InlineAttr;
diff --git a/src/librustc/hir/print.rs b/src/librustc/hir/print.rs
index d3f2458ef87..3943c30127d 100644
--- a/src/librustc/hir/print.rs
+++ b/src/librustc/hir/print.rs
@@ -10,7 +10,7 @@
 
 pub use self::AnnNode::*;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::codemap::{CodeMap, Spanned};
 use syntax::parse::{token, ParseSess};
diff --git a/src/librustc/ich/impls_syntax.rs b/src/librustc/ich/impls_syntax.rs
index 4ac678aaa05..d7e16ab3620 100644
--- a/src/librustc/ich/impls_syntax.rs
+++ b/src/librustc/ich/impls_syntax.rs
@@ -82,7 +82,7 @@ impl_stable_hash_for!(enum ::syntax::ext::base::MacroKind {
 });
 
 
-impl_stable_hash_for!(enum ::syntax::abi::Abi {
+impl_stable_hash_for!(enum ::rustc_target::spec::abi::Abi {
     Cdecl,
     Stdcall,
     Fastcall,
diff --git a/src/librustc/middle/intrinsicck.rs b/src/librustc/middle/intrinsicck.rs
index 0a4e5094cde..27f7dbf508d 100644
--- a/src/librustc/middle/intrinsicck.rs
+++ b/src/librustc/middle/intrinsicck.rs
@@ -13,7 +13,7 @@ use hir::def_id::DefId;
 use ty::{self, Ty, TyCtxt};
 use ty::layout::{LayoutError, Pointer, SizeSkeleton};
 
-use syntax::abi::Abi::RustIntrinsic;
+use rustc_target::spec::abi::Abi::RustIntrinsic;
 use syntax_pos::Span;
 use hir::intravisit::{self, Visitor, NestedVisitorMap};
 use hir;
diff --git a/src/librustc/middle/reachable.rs b/src/librustc/middle/reachable.rs
index 48a62c8c14d..0aeb15b49fb 100644
--- a/src/librustc/middle/reachable.rs
+++ b/src/librustc/middle/reachable.rs
@@ -26,7 +26,7 @@ use middle::privacy;
 use session::config;
 use util::nodemap::{NodeSet, FxHashSet};
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::attr;
 use hir;
diff --git a/src/librustc/traits/error_reporting.rs b/src/librustc/traits/error_reporting.rs
index a7669b942e3..33abc0c7e15 100644
--- a/src/librustc/traits/error_reporting.rs
+++ b/src/librustc/traits/error_reporting.rs
@@ -1091,7 +1091,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
                     tcx.mk_infer(ty::TyVar(ty::TyVid { index: 0 })),
                     false,
                     hir::Unsafety::Normal,
-                    ::syntax::abi::Abi::Rust
+                    ::rustc_target::spec::abi::Abi::Rust
                 )
             } else {
                 tcx.mk_fn_sig(
@@ -1099,7 +1099,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
                     tcx.mk_infer(ty::TyVar(ty::TyVid { index: 0 })),
                     false,
                     hir::Unsafety::Normal,
-                    ::syntax::abi::Abi::Rust
+                    ::rustc_target::spec::abi::Abi::Rust
                 )
             };
             format!("{}", ty::Binder::bind(sig))
diff --git a/src/librustc/traits/select.rs b/src/librustc/traits/select.rs
index cfc14b7bfe4..f43f5cf3e3f 100644
--- a/src/librustc/traits/select.rs
+++ b/src/librustc/traits/select.rs
@@ -51,7 +51,7 @@ use std::cmp;
 use std::fmt;
 use std::mem;
 use std::rc::Rc;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use hir;
 use util::nodemap::{FxHashMap, FxHashSet};
 
diff --git a/src/librustc/ty/context.rs b/src/librustc/ty/context.rs
index a5df068dee2..b9e8cd454a0 100644
--- a/src/librustc/ty/context.rs
+++ b/src/librustc/ty/context.rs
@@ -70,7 +70,7 @@ use std::ops::Deref;
 use std::iter;
 use std::sync::mpsc;
 use std::sync::Arc;
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast::{self, NodeId};
 use syntax::attr;
 use syntax::codemap::MultiSpan;
diff --git a/src/librustc/ty/error.rs b/src/librustc/ty/error.rs
index eb392418647..cf2004a681e 100644
--- a/src/librustc/ty/error.rs
+++ b/src/librustc/ty/error.rs
@@ -11,7 +11,7 @@
 use hir::def_id::DefId;
 use ty::{self, BoundRegion, Region, Ty, TyCtxt};
 use std::fmt;
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast;
 use errors::DiagnosticBuilder;
 use syntax_pos::Span;
diff --git a/src/librustc/ty/instance.rs b/src/librustc/ty/instance.rs
index 02a03bc542a..ecd415c4bc4 100644
--- a/src/librustc/ty/instance.rs
+++ b/src/librustc/ty/instance.rs
@@ -12,7 +12,7 @@ use hir::def_id::DefId;
 use ty::{self, Ty, TypeFoldable, Substs, TyCtxt};
 use ty::subst::Kind;
 use traits;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use util::ppaux;
 
 use std::fmt;
diff --git a/src/librustc/ty/relate.rs b/src/librustc/ty/relate.rs
index 348cf03dd87..03ed6e7ac90 100644
--- a/src/librustc/ty/relate.rs
+++ b/src/librustc/ty/relate.rs
@@ -22,7 +22,7 @@ use mir::interpret::{GlobalId, Value, PrimVal};
 use util::common::ErrorReported;
 use std::rc::Rc;
 use std::iter;
-use syntax::abi;
+use rustc_target::spec::abi;
 use hir as ast;
 use rustc_data_structures::accumulate_vec::AccumulateVec;
 
diff --git a/src/librustc/ty/structural_impls.rs b/src/librustc/ty/structural_impls.rs
index 199a46678c8..9b20fce6673 100644
--- a/src/librustc/ty/structural_impls.rs
+++ b/src/librustc/ty/structural_impls.rs
@@ -44,7 +44,7 @@ CloneTypeFoldableAndLiftImpls! {
     ::hir::MatchSource,
     ::hir::Mutability,
     ::hir::Unsafety,
-    ::syntax::abi::Abi,
+    ::rustc_target::spec::abi::Abi,
     ::mir::Local,
     ::mir::Promoted,
     ::traits::Reveal,
diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
index 92e879a584b..0dfae13cc75 100644
--- a/src/librustc/ty/sty.rs
+++ b/src/librustc/ty/sty.rs
@@ -22,7 +22,7 @@ use util::captures::Captures;
 
 use std::iter;
 use std::cmp::Ordering;
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast::{self, Name};
 use syntax::symbol::{keywords, InternedString};
 
diff --git a/src/librustc/util/ppaux.rs b/src/librustc/util/ppaux.rs
index efe83252d0f..905776373bd 100644
--- a/src/librustc/util/ppaux.rs
+++ b/src/librustc/util/ppaux.rs
@@ -28,7 +28,7 @@ use std::fmt;
 use std::usize;
 
 use rustc_data_structures::indexed_vec::Idx;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::CRATE_NODE_ID;
 use syntax::symbol::{Symbol, InternedString};
 use hir;
diff --git a/src/librustc_allocator/Cargo.toml b/src/librustc_allocator/Cargo.toml
index e3d1d8e32c4..765cb80f357 100644
--- a/src/librustc_allocator/Cargo.toml
+++ b/src/librustc_allocator/Cargo.toml
@@ -11,5 +11,6 @@ test = false
 [dependencies]
 rustc = { path = "../librustc" }
 rustc_errors = { path = "../librustc_errors" }
+rustc_target = { path = "../librustc_target" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
diff --git a/src/librustc_allocator/expand.rs b/src/librustc_allocator/expand.rs
index 9338d000c12..de8814d3d6a 100644
--- a/src/librustc_allocator/expand.rs
+++ b/src/librustc_allocator/expand.rs
@@ -10,7 +10,7 @@
 
 use rustc::middle::allocator::AllocatorKind;
 use rustc_errors;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{Attribute, Crate, LitKind, StrStyle};
 use syntax::ast::{Arg, Constness, Generics, Mac, Mutability, Ty, Unsafety};
 use syntax::ast::{self, Expr, Ident, Item, ItemKind, TyKind, VisibilityKind};
diff --git a/src/librustc_allocator/lib.rs b/src/librustc_allocator/lib.rs
index 969086815de..6595564fb30 100644
--- a/src/librustc_allocator/lib.rs
+++ b/src/librustc_allocator/lib.rs
@@ -12,6 +12,7 @@
 
 extern crate rustc;
 extern crate rustc_errors;
+extern crate rustc_target;
 extern crate syntax;
 extern crate syntax_pos;
 
diff --git a/src/librustc_cratesio_shim/Cargo.toml b/src/librustc_cratesio_shim/Cargo.toml
index 143f88e8f4b..342c7d1b678 100644
--- a/src/librustc_cratesio_shim/Cargo.toml
+++ b/src/librustc_cratesio_shim/Cargo.toml
@@ -21,3 +21,4 @@ crate-type = ["dylib"]
 
 [dependencies]
 bitflags = "1.0"
+log = "0.4"
diff --git a/src/librustc_cratesio_shim/src/lib.rs b/src/librustc_cratesio_shim/src/lib.rs
index 769b4f57206..85a5b331d8c 100644
--- a/src/librustc_cratesio_shim/src/lib.rs
+++ b/src/librustc_cratesio_shim/src/lib.rs
@@ -12,3 +12,4 @@
 #![allow(unused_extern_crates)]
 
 extern crate bitflags;
+extern crate log;
diff --git a/src/librustc_data_structures/Cargo.toml b/src/librustc_data_structures/Cargo.toml
index e1f0a74fc68..9178d0d00fa 100644
--- a/src/librustc_data_structures/Cargo.toml
+++ b/src/librustc_data_structures/Cargo.toml
@@ -11,6 +11,7 @@ crate-type = ["dylib"]
 [dependencies]
 ena = "0.9.1"
 log = "0.4"
+rustc_cratesio_shim = { path = "../librustc_cratesio_shim" }
 serialize = { path = "../libserialize" }
 cfg-if = "0.1.2"
 stable_deref_trait = "1.0.0"
diff --git a/src/librustc_data_structures/lib.rs b/src/librustc_data_structures/lib.rs
index ba1d73dc268..1320fe75bc5 100644
--- a/src/librustc_data_structures/lib.rs
+++ b/src/librustc_data_structures/lib.rs
@@ -45,6 +45,10 @@ extern crate parking_lot;
 extern crate cfg_if;
 extern crate stable_deref_trait;
 
+// See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
+#[allow(unused_extern_crates)]
+extern crate rustc_cratesio_shim;
+
 pub use rustc_serialize::hex::ToHex;
 
 pub mod array_vec;
diff --git a/src/librustc_driver/test.rs b/src/librustc_driver/test.rs
index 83501f45ec0..47c49fbe9ef 100644
--- a/src/librustc_driver/test.rs
+++ b/src/librustc_driver/test.rs
@@ -31,7 +31,7 @@ use rustc::session::config::{OutputFilenames, OutputTypes};
 use rustc_data_structures::sync::{self, Lrc};
 use syntax;
 use syntax::ast;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::codemap::{CodeMap, FilePathMapping, FileName};
 use errors;
 use errors::emitter::Emitter;
diff --git a/src/librustc_lint/Cargo.toml b/src/librustc_lint/Cargo.toml
index 5ff891202db..f097095abe4 100644
--- a/src/librustc_lint/Cargo.toml
+++ b/src/librustc_lint/Cargo.toml
@@ -13,5 +13,6 @@ test = false
 log = "0.4"
 rustc = { path = "../librustc" }
 rustc_mir = { path = "../librustc_mir"}
+rustc_target = { path = "../librustc_target" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
diff --git a/src/librustc_lint/bad_style.rs b/src/librustc_lint/bad_style.rs
index 463ec4796e8..651a2e187f6 100644
--- a/src/librustc_lint/bad_style.rs
+++ b/src/librustc_lint/bad_style.rs
@@ -13,7 +13,7 @@ use rustc::ty;
 use lint::{LateContext, LintContext, LintArray};
 use lint::{LintPass, LateLintPass};
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::attr;
 use syntax_pos::Span;
diff --git a/src/librustc_lint/builtin.rs b/src/librustc_lint/builtin.rs
index 76991e3e52d..91ce6f3854a 100644
--- a/src/librustc_lint/builtin.rs
+++ b/src/librustc_lint/builtin.rs
@@ -1169,7 +1169,7 @@ impl LintPass for MutableTransmutes {
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MutableTransmutes {
     fn check_expr(&mut self, cx: &LateContext, expr: &hir::Expr) {
-        use syntax::abi::Abi::RustIntrinsic;
+        use rustc_target::spec::abi::Abi::RustIntrinsic;
 
         let msg = "mutating transmuted &mut T from &T may cause undefined behavior, \
                    consider instead using an UnsafeCell";
diff --git a/src/librustc_lint/lib.rs b/src/librustc_lint/lib.rs
index 889c7d3e34e..65b340d6568 100644
--- a/src/librustc_lint/lib.rs
+++ b/src/librustc_lint/lib.rs
@@ -37,6 +37,7 @@ extern crate rustc;
 #[macro_use]
 extern crate log;
 extern crate rustc_mir;
+extern crate rustc_target;
 extern crate syntax_pos;
 
 use rustc::lint;
diff --git a/src/librustc_lint/types.rs b/src/librustc_lint/types.rs
index 4d2bddd531e..904a3e4c427 100644
--- a/src/librustc_lint/types.rs
+++ b/src/librustc_lint/types.rs
@@ -22,7 +22,7 @@ use std::cmp;
 use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64};
 
 use syntax::{ast, attr};
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax_pos::Span;
 use syntax::codemap;
 
diff --git a/src/librustc_metadata/link_args.rs b/src/librustc_metadata/link_args.rs
index 6fafde0d09c..b699885b0eb 100644
--- a/src/librustc_metadata/link_args.rs
+++ b/src/librustc_metadata/link_args.rs
@@ -11,7 +11,7 @@
 use rustc::hir::itemlikevisit::ItemLikeVisitor;
 use rustc::hir;
 use rustc::ty::TyCtxt;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 
 pub fn collect<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) -> Vec<String> {
     let mut collector = Collector {
diff --git a/src/librustc_metadata/native_libs.rs b/src/librustc_metadata/native_libs.rs
index 4bb6d8fb87c..70b8c7b11fd 100644
--- a/src/librustc_metadata/native_libs.rs
+++ b/src/librustc_metadata/native_libs.rs
@@ -14,7 +14,7 @@ use rustc::middle::cstore::{self, NativeLibrary};
 use rustc::session::Session;
 use rustc::ty::TyCtxt;
 use rustc::util::nodemap::FxHashSet;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::attr;
 use syntax::codemap::Span;
 use syntax::feature_gate::{self, GateIssue};
diff --git a/src/librustc_mir/build/expr/into.rs b/src/librustc_mir/build/expr/into.rs
index 28dc329e4fe..c130b4f550f 100644
--- a/src/librustc_mir/build/expr/into.rs
+++ b/src/librustc_mir/build/expr/into.rs
@@ -16,7 +16,7 @@ use hair::*;
 use rustc::ty;
 use rustc::mir::*;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 
 impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
     /// Compile `expr`, storing the result into `destination`, which
diff --git a/src/librustc_mir/build/mod.rs b/src/librustc_mir/build/mod.rs
index 1dcf1e80041..0d836f5cb97 100644
--- a/src/librustc_mir/build/mod.rs
+++ b/src/librustc_mir/build/mod.rs
@@ -25,7 +25,7 @@ use rustc_data_structures::indexed_vec::{IndexVec, Idx};
 use shim;
 use std::mem;
 use std::u32;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::attr::{self, UnwindAttr};
 use syntax::symbol::keywords;
diff --git a/src/librustc_mir/interpret/terminator/mod.rs b/src/librustc_mir/interpret/terminator/mod.rs
index 3360e5b72a7..aa80ee7af18 100644
--- a/src/librustc_mir/interpret/terminator/mod.rs
+++ b/src/librustc_mir/interpret/terminator/mod.rs
@@ -2,7 +2,7 @@ use rustc::mir;
 use rustc::ty::{self, Ty};
 use rustc::ty::layout::LayoutOf;
 use syntax::codemap::Span;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 
 use rustc::mir::interpret::{EvalResult, PrimVal, Value};
 use super::{EvalContext, Place, Machine, ValTy};
diff --git a/src/librustc_mir/monomorphize/item.rs b/src/librustc_mir/monomorphize/item.rs
index 181751f1777..9e0c977a3f0 100644
--- a/src/librustc_mir/monomorphize/item.rs
+++ b/src/librustc_mir/monomorphize/item.rs
@@ -339,7 +339,7 @@ impl<'a, 'tcx> DefPathBasedNames<'a, 'tcx> {
                 }
 
                 let abi = sig.abi();
-                if abi != ::syntax::abi::Abi::Rust {
+                if abi != ::rustc_target::spec::abi::Abi::Rust {
                     output.push_str("extern \"");
                     output.push_str(abi.name());
                     output.push_str("\" ");
diff --git a/src/librustc_mir/shim.rs b/src/librustc_mir/shim.rs
index 6a0f42c6dbb..af60a83a4a2 100644
--- a/src/librustc_mir/shim.rs
+++ b/src/librustc_mir/shim.rs
@@ -20,7 +20,7 @@ use rustc::mir::interpret::{Value, PrimVal};
 
 use rustc_data_structures::indexed_vec::{IndexVec, Idx};
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax_pos::Span;
 
diff --git a/src/librustc_mir/transform/inline.rs b/src/librustc_mir/transform/inline.rs
index 2dd805ccf9b..2b491385d66 100644
--- a/src/librustc_mir/transform/inline.rs
+++ b/src/librustc_mir/transform/inline.rs
@@ -28,7 +28,7 @@ use transform::{MirPass, MirSource};
 use super::simplify::{remove_dead_blocks, CfgSimplifier};
 
 use syntax::{attr};
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 
 const DEFAULT_THRESHOLD: usize = 50;
 const HINT_THRESHOLD: usize = 100;
diff --git a/src/librustc_mir/transform/qualify_consts.rs b/src/librustc_mir/transform/qualify_consts.rs
index 591732fbba9..ff7551ed6f4 100644
--- a/src/librustc_mir/transform/qualify_consts.rs
+++ b/src/librustc_mir/transform/qualify_consts.rs
@@ -29,7 +29,7 @@ use rustc::mir::*;
 use rustc::mir::traversal::ReversePostorder;
 use rustc::mir::visit::{PlaceContext, Visitor};
 use rustc::middle::lang_items;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::attr;
 use syntax::ast::LitKind;
 use syntax::feature_gate::UnstableFeatures;
diff --git a/src/librustc_mir/transform/rustc_peek.rs b/src/librustc_mir/transform/rustc_peek.rs
index 45e7a0d3f4c..8f67b9e7c3d 100644
--- a/src/librustc_mir/transform/rustc_peek.rs
+++ b/src/librustc_mir/transform/rustc_peek.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use syntax::abi::{Abi};
+use rustc_target::spec::abi::{Abi};
 use syntax::ast;
 use syntax_pos::Span;
 
diff --git a/src/librustc_save_analysis/Cargo.toml b/src/librustc_save_analysis/Cargo.toml
index 005faa55b58..976614c9542 100644
--- a/src/librustc_save_analysis/Cargo.toml
+++ b/src/librustc_save_analysis/Cargo.toml
@@ -12,6 +12,7 @@ crate-type = ["dylib"]
 log = "0.4"
 rustc = { path = "../librustc" }
 rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_target = { path = "../librustc_target" }
 rustc_typeck = { path = "../librustc_typeck" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
diff --git a/src/librustc_save_analysis/lib.rs b/src/librustc_save_analysis/lib.rs
index 6a747decbd3..401a280412a 100644
--- a/src/librustc_save_analysis/lib.rs
+++ b/src/librustc_save_analysis/lib.rs
@@ -22,6 +22,7 @@ extern crate rustc;
 extern crate log;
 extern crate rustc_data_structures;
 extern crate rustc_serialize;
+extern crate rustc_target;
 extern crate rustc_typeck;
 #[macro_use]
 extern crate syntax;
diff --git a/src/librustc_save_analysis/sig.rs b/src/librustc_save_analysis/sig.rs
index a9df898efb6..829ed320d75 100644
--- a/src/librustc_save_analysis/sig.rs
+++ b/src/librustc_save_analysis/sig.rs
@@ -237,7 +237,7 @@ impl Sig for ast::Ty {
                 if f.unsafety == ast::Unsafety::Unsafe {
                     text.push_str("unsafe ");
                 }
-                if f.abi != ::syntax::abi::Abi::Rust {
+                if f.abi != ::rustc_target::spec::abi::Abi::Rust {
                     text.push_str("extern");
                     text.push_str(&f.abi.to_string());
                     text.push(' ');
@@ -388,7 +388,7 @@ impl Sig for ast::Item {
                 if unsafety == ast::Unsafety::Unsafe {
                     text.push_str("unsafe ");
                 }
-                if abi != ::syntax::abi::Abi::Rust {
+                if abi != ::rustc_target::spec::abi::Abi::Rust {
                     text.push_str("extern");
                     text.push_str(&abi.to_string());
                     text.push(' ');
@@ -931,7 +931,7 @@ fn make_method_signature(
     if m.unsafety == ast::Unsafety::Unsafe {
         text.push_str("unsafe ");
     }
-    if m.abi != ::syntax::abi::Abi::Rust {
+    if m.abi != ::rustc_target::spec::abi::Abi::Rust {
         text.push_str("extern");
         text.push_str(&m.abi.to_string());
         text.push(' ');
diff --git a/src/librustc_target/Cargo.toml b/src/librustc_target/Cargo.toml
index 4064cb17f01..bb686e914a0 100644
--- a/src/librustc_target/Cargo.toml
+++ b/src/librustc_target/Cargo.toml
@@ -11,7 +11,7 @@ crate-type = ["dylib"]
 [dependencies]
 bitflags = "1.0"
 log = "0.4"
-syntax = { path = "../libsyntax" }
+rustc_cratesio_shim = { path = "../librustc_cratesio_shim" }
 serialize = { path = "../libserialize" }
 
 [features]
diff --git a/src/librustc_target/abi/call/mod.rs b/src/librustc_target/abi/call/mod.rs
index 3fad7926e1f..34f28301e54 100644
--- a/src/librustc_target/abi/call/mod.rs
+++ b/src/librustc_target/abi/call/mod.rs
@@ -458,22 +458,22 @@ pub struct FnType<'a, Ty> {
 }
 
 impl<'a, Ty> FnType<'a, Ty> {
-    pub fn adjust_for_cabi<C>(&mut self, cx: C, abi: ::syntax::abi::Abi) -> Result<(), String>
+    pub fn adjust_for_cabi<C>(&mut self, cx: C, abi: ::spec::abi::Abi) -> Result<(), String>
         where Ty: TyLayoutMethods<'a, C> + Copy,
               C: LayoutOf<Ty = Ty, TyLayout = TyLayout<'a, Ty>> + HasDataLayout + HasTargetSpec
     {
         match &cx.target_spec().arch[..] {
             "x86" => {
-                let flavor = if abi == ::syntax::abi::Abi::Fastcall {
+                let flavor = if abi == ::spec::abi::Abi::Fastcall {
                     x86::Flavor::Fastcall
                 } else {
                     x86::Flavor::General
                 };
                 x86::compute_abi_info(cx, self, flavor);
             },
-            "x86_64" => if abi == ::syntax::abi::Abi::SysV64 {
+            "x86_64" => if abi == ::spec::abi::Abi::SysV64 {
                 x86_64::compute_abi_info(cx, self);
-            } else if abi == ::syntax::abi::Abi::Win64 || cx.target_spec().options.is_like_windows {
+            } else if abi == ::spec::abi::Abi::Win64 || cx.target_spec().options.is_like_windows {
                 x86_win64::compute_abi_info(self);
             } else {
                 x86_64::compute_abi_info(cx, self);
diff --git a/src/librustc_target/lib.rs b/src/librustc_target/lib.rs
index c2418a3b2a7..8f491157439 100644
--- a/src/librustc_target/lib.rs
+++ b/src/librustc_target/lib.rs
@@ -33,11 +33,14 @@
 
 #[macro_use]
 extern crate bitflags;
-extern crate syntax;
 extern crate serialize;
 #[macro_use] extern crate log;
 
 extern crate serialize as rustc_serialize; // used by deriving
 
+// See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
+#[allow(unused_extern_crates)]
+extern crate rustc_cratesio_shim;
+
 pub mod abi;
 pub mod spec;
diff --git a/src/libsyntax/abi.rs b/src/librustc_target/spec/abi.rs
index ed2eb209906..ed2eb209906 100644
--- a/src/libsyntax/abi.rs
+++ b/src/librustc_target/spec/abi.rs
diff --git a/src/librustc_target/spec/arm_base.rs b/src/librustc_target/spec/arm_base.rs
index 416e5a0e13a..635b8ae7388 100644
--- a/src/librustc_target/spec/arm_base.rs
+++ b/src/librustc_target/spec/arm_base.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use syntax::abi::Abi;
+use spec::abi::Abi;
 
 // All the calling conventions trigger an assertion(Unsupported calling convention) in llvm on arm
 pub fn abi_blacklist() -> Vec<Abi> {
diff --git a/src/librustc_target/spec/mod.rs b/src/librustc_target/spec/mod.rs
index 978ead51b05..1e94f037885 100644
--- a/src/librustc_target/spec/mod.rs
+++ b/src/librustc_target/spec/mod.rs
@@ -50,8 +50,9 @@ use std::default::Default;
 use std::{fmt, io};
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
-use syntax::abi::{Abi, lookup as lookup_abi};
+use spec::abi::{Abi, lookup as lookup_abi};
 
+pub mod abi;
 mod android_base;
 mod apple_base;
 mod apple_ios_base;
diff --git a/src/librustc_trans/abi.rs b/src/librustc_trans/abi.rs
index 73c72a15b05..483f36afe27 100644
--- a/src/librustc_trans/abi.rs
+++ b/src/librustc_trans/abi.rs
@@ -24,7 +24,7 @@ use rustc::ty::layout;
 
 use libc::c_uint;
 
-pub use syntax::abi::Abi;
+pub use rustc_target::spec::abi::Abi;
 pub use rustc::ty::layout::{FAT_PTR_ADDR, FAT_PTR_EXTRA};
 pub use rustc_target::abi::call::*;
 
diff --git a/src/librustc_trans/common.rs b/src/librustc_trans/common.rs
index e83e73c8ae7..25ca2152b27 100644
--- a/src/librustc_trans/common.rs
+++ b/src/librustc_trans/common.rs
@@ -32,7 +32,7 @@ use rustc::hir;
 use libc::{c_uint, c_char};
 use std::iter;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::symbol::InternedString;
 use syntax_pos::{Span, DUMMY_SP};
 
diff --git a/src/librustc_typeck/Cargo.toml b/src/librustc_typeck/Cargo.toml
index c7868cc1e95..70c13e9b7d6 100644
--- a/src/librustc_typeck/Cargo.toml
+++ b/src/librustc_typeck/Cargo.toml
@@ -18,5 +18,6 @@ rustc = { path = "../librustc" }
 rustc_const_math = { path = "../librustc_const_math" }
 rustc_data_structures = { path = "../librustc_data_structures" }
 rustc_platform_intrinsics = { path = "../librustc_platform_intrinsics" }
+rustc_target = { path = "../librustc_target" }
 syntax_pos = { path = "../libsyntax_pos" }
 rustc_errors = { path = "../librustc_errors" }
diff --git a/src/librustc_typeck/astconv.rs b/src/librustc_typeck/astconv.rs
index d657db0b125..6cdce127308 100644
--- a/src/librustc_typeck/astconv.rs
+++ b/src/librustc_typeck/astconv.rs
@@ -23,6 +23,7 @@ use rustc::ty::subst::{Kind, UnpackedKind, Subst, Substs};
 use rustc::traits;
 use rustc::ty::{self, RegionKind, Ty, TyCtxt, ToPredicate, TypeFoldable};
 use rustc::ty::wf::object_region_bounds;
+use rustc_target::spec::abi;
 use std::slice;
 use require_c_abi_if_variadic;
 use util::common::ErrorReported;
@@ -30,7 +31,7 @@ use util::nodemap::FxHashSet;
 use errors::FatalError;
 
 use std::iter;
-use syntax::{abi, ast};
+use syntax::ast;
 use syntax::feature_gate::{GateIssue, emit_feature_err};
 use syntax_pos::Span;
 
diff --git a/src/librustc_typeck/check/callee.rs b/src/librustc_typeck/check/callee.rs
index 0c95f5eeb43..4df496763e4 100644
--- a/src/librustc_typeck/check/callee.rs
+++ b/src/librustc_typeck/check/callee.rs
@@ -17,7 +17,7 @@ use hir::def_id::{DefId, LOCAL_CRATE};
 use rustc::{infer, traits};
 use rustc::ty::{self, TyCtxt, TypeFoldable, Ty};
 use rustc::ty::adjustment::{Adjustment, Adjust, AllowTwoPhase, AutoBorrow, AutoBorrowMutability};
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::symbol::Symbol;
 use syntax_pos::Span;
 
diff --git a/src/librustc_typeck/check/closure.rs b/src/librustc_typeck/check/closure.rs
index ed0613860d0..3b9d561ffc5 100644
--- a/src/librustc_typeck/check/closure.rs
+++ b/src/librustc_typeck/check/closure.rs
@@ -23,7 +23,7 @@ use rustc::ty::subst::Substs;
 use rustc::ty::TypeFoldable;
 use std::cmp;
 use std::iter;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::codemap::Span;
 use rustc::hir;
 
diff --git a/src/librustc_typeck/check/intrinsic.rs b/src/librustc_typeck/check/intrinsic.rs
index 64b0e7d0a7d..283fbf8fecc 100644
--- a/src/librustc_typeck/check/intrinsic.rs
+++ b/src/librustc_typeck/check/intrinsic.rs
@@ -17,7 +17,7 @@ use rustc::ty::{self, TyCtxt, Ty};
 use rustc::util::nodemap::FxHashMap;
 use require_same_types;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::symbol::Symbol;
 use syntax_pos::Span;
diff --git a/src/librustc_typeck/check/mod.rs b/src/librustc_typeck/check/mod.rs
index 4083d4a21ef..787df7c6479 100644
--- a/src/librustc_typeck/check/mod.rs
+++ b/src/librustc_typeck/check/mod.rs
@@ -118,7 +118,7 @@ use std::fmt::Display;
 use std::mem::replace;
 use std::iter;
 use std::ops::{self, Deref};
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast;
 use syntax::attr;
 use syntax::codemap::{original_sp, Spanned};
diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs
index fb8c6ba6401..2ebbd64cab9 100644
--- a/src/librustc_typeck/collect.rs
+++ b/src/librustc_typeck/collect.rs
@@ -38,8 +38,9 @@ use rustc::ty::util::IntTypeExt;
 use rustc::ty::util::Discr;
 use rustc::util::captures::Captures;
 use rustc::util::nodemap::FxHashMap;
+use rustc_target::spec::abi;
 
-use syntax::{abi, ast};
+use syntax::ast;
 use syntax::ast::MetaItemKind;
 use syntax::attr::{InlineAttr, list_contains_name, mark_used};
 use syntax::codemap::Spanned;
diff --git a/src/librustc_typeck/lib.rs b/src/librustc_typeck/lib.rs
index d29ee3d9b3a..23fe91ffdeb 100644
--- a/src/librustc_typeck/lib.rs
+++ b/src/librustc_typeck/lib.rs
@@ -94,6 +94,7 @@ extern crate rustc_platform_intrinsics as intrinsics;
 extern crate rustc_const_math;
 extern crate rustc_data_structures;
 extern crate rustc_errors as errors;
+extern crate rustc_target;
 
 use rustc::hir;
 use rustc::lint;
@@ -111,7 +112,7 @@ use session::{CompileIncomplete, config};
 use util::common::time;
 
 use syntax::ast;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax_pos::Span;
 
 use std::iter;
diff --git a/src/librustc_typeck/outlives/implicit_infer.rs b/src/librustc_typeck/outlives/implicit_infer.rs
index 65c78d3593f..26fba71c812 100644
--- a/src/librustc_typeck/outlives/implicit_infer.rs
+++ b/src/librustc_typeck/outlives/implicit_infer.rs
@@ -23,7 +23,8 @@ use rustc::ty::{self, AdtKind, CratePredicatesMap, Region, RegionKind, ReprOptio
                 ToPolyTraitRef, ToPredicate, Ty, TyCtxt};
 use rustc::util::nodemap::{FxHashMap, FxHashSet};
 use rustc_data_structures::sync::Lrc;
-use syntax::{abi, ast};
+use rustc_target::spec::abi;
+use syntax::ast;
 use syntax_pos::{Span, DUMMY_SP};
 
 /// Infer predicates for the items in the crate.
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index e37b3a7fcc4..fb05cbfe32c 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -20,7 +20,7 @@ pub use self::FunctionRetTy::*;
 pub use self::Visibility::*;
 
 use syntax;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{self, AttrStyle, Ident};
 use syntax::attr;
 use syntax::codemap::{dummy_spanned, Spanned};
diff --git a/src/librustdoc/doctree.rs b/src/librustdoc/doctree.rs
index 413e5623118..f85a70a6d40 100644
--- a/src/librustdoc/doctree.rs
+++ b/src/librustdoc/doctree.rs
@@ -13,7 +13,7 @@
 pub use self::StructType::*;
 pub use self::TypeBound::*;
 
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast;
 use syntax::ast::{Name, NodeId};
 use syntax::attr;
diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index 0a7e19fc643..a9a4c511374 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -19,7 +19,7 @@ use std::fmt;
 use std::iter::repeat;
 
 use rustc::hir::def_id::DefId;
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use rustc::hir;
 
 use clean::{self, PrimitiveType};
diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index 0ae946c4182..82449e9b5f9 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -54,7 +54,7 @@ use std::sync::Arc;
 use externalfiles::ExternalHtml;
 
 use serialize::json::{ToJson, Json, as_json};
-use syntax::{abi, ast};
+use syntax::ast;
 use syntax::codemap::FileName;
 use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefId};
 use rustc::middle::privacy::AccessLevels;
@@ -62,6 +62,7 @@ use rustc::middle::stability;
 use rustc::hir;
 use rustc::util::nodemap::{FxHashMap, FxHashSet};
 use rustc_data_structures::flock;
+use rustc_target::spec::abi;
 
 use clean::{self, AttributesExt, GetDefId, SelfTy, Mutability};
 use doctree;
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index a60db29c2f9..614386a583a 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -36,6 +36,7 @@ extern crate rustc_driver;
 extern crate rustc_resolve;
 extern crate rustc_lint;
 extern crate rustc_metadata;
+extern crate rustc_target;
 extern crate rustc_typeck;
 extern crate serialize;
 #[macro_use] extern crate syntax;
diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs
index f45a5b030db..967c50e62db 100644
--- a/src/librustdoc/visit_ast.rs
+++ b/src/librustdoc/visit_ast.rs
@@ -13,7 +13,7 @@
 
 use std::mem;
 
-use syntax::abi;
+use rustc_target::spec::abi;
 use syntax::ast;
 use syntax::attr;
 use syntax_pos::Span;
diff --git a/src/libsyntax/Cargo.toml b/src/libsyntax/Cargo.toml
index 8c24f36615b..d1a5ab0211b 100644
--- a/src/libsyntax/Cargo.toml
+++ b/src/libsyntax/Cargo.toml
@@ -14,6 +14,6 @@ serialize = { path = "../libserialize" }
 log = "0.4"
 scoped-tls = "0.1"
 syntax_pos = { path = "../libsyntax_pos" }
-rustc_cratesio_shim = { path = "../librustc_cratesio_shim" }
 rustc_errors = { path = "../librustc_errors" }
 rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_target = { path = "../librustc_target" }
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 4e3ee241468..cbfcad12f1e 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -19,7 +19,7 @@ pub use util::parser::ExprPrecedence;
 
 use syntax_pos::{Span, DUMMY_SP};
 use codemap::{respan, Spanned};
-use abi::Abi;
+use rustc_target::spec::abi::Abi;
 use ext::hygiene::{Mark, SyntaxContext};
 use print::pprust;
 use ptr::P;
diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index a9f48342243..0b64189b2bc 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use abi::Abi;
+use rustc_target::spec::abi::Abi;
 use ast::{self, Ident, Generics, Expr, BlockCheckMode, UnOp, PatKind};
 use attr;
 use syntax_pos::{Pos, Span, DUMMY_SP};
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 39ddb13d347..0331e90164f 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -25,7 +25,7 @@
 use self::AttributeType::*;
 use self::AttributeGate::*;
 
-use abi::Abi;
+use rustc_target::spec::abi::Abi;
 use ast::{self, NodeId, PatKind, RangeEnd};
 use attr;
 use edition::{ALL_EDITIONS, Edition};
diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index ad98e2a6b71..870ce1926ad 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -28,10 +28,6 @@
 
 #![recursion_limit="256"]
 
-// See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
-#[allow(unused_extern_crates)]
-extern crate rustc_cratesio_shim;
-
 #[macro_use] extern crate bitflags;
 extern crate core;
 extern crate serialize;
@@ -39,6 +35,7 @@ extern crate serialize;
 pub extern crate rustc_errors as errors;
 extern crate syntax_pos;
 extern crate rustc_data_structures;
+extern crate rustc_target;
 #[macro_use] extern crate scoped_tls;
 
 extern crate serialize as rustc_serialize; // used by deriving
@@ -138,7 +135,6 @@ pub mod syntax {
     pub use ast;
 }
 
-pub mod abi;
 pub mod ast;
 pub mod attr;
 pub mod codemap;
diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs
index 0397c3297db..ff09c6aa2f0 100644
--- a/src/libsyntax/parse/mod.rs
+++ b/src/libsyntax/parse/mod.rs
@@ -678,7 +678,7 @@ mod tests {
     use syntax_pos::{self, Span, BytePos, Pos, NO_EXPANSION};
     use codemap::{respan, Spanned};
     use ast::{self, Ident, PatKind};
-    use abi::Abi;
+    use rustc_target::spec::abi::Abi;
     use attr::first_attr_value_str_by_name;
     use parse;
     use parse::parser::Parser;
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 9fa3952ca80..324cadc84e8 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use abi::{self, Abi};
+use rustc_target::spec::abi::{self, Abi};
 use ast::{AngleBracketedParameterData, ParenthesizedParameterData, AttrStyle, BareFnTy};
 use ast::{RegionTyParamBound, TraitTyParamBound, TraitBoundModifier};
 use ast::Unsafety;
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index bd06ae8c1a9..88860df10e2 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -10,7 +10,7 @@
 
 pub use self::AnnNode::*;
 
-use abi::{self, Abi};
+use rustc_target::spec::abi::{self, Abi};
 use ast::{self, BlockCheckMode, PatKind, RangeEnd, RangeSyntax};
 use ast::{SelfKind, RegionTyParamBound, TraitTyParamBound, TraitBoundModifier};
 use ast::Attribute;
diff --git a/src/libsyntax/test.rs b/src/libsyntax/test.rs
index 325927ed832..e2a9f8715e2 100644
--- a/src/libsyntax/test.rs
+++ b/src/libsyntax/test.rs
@@ -563,7 +563,7 @@ fn mk_main(cx: &mut TestCtxt) -> P<ast::Item> {
     let main = ast::ItemKind::Fn(ecx.fn_decl(vec![], ast::FunctionRetTy::Ty(main_ret_ty)),
                            ast::Unsafety::Normal,
                            dummy_spanned(ast::Constness::NotConst),
-                           ::abi::Abi::Rust, ast::Generics::default(), main_body);
+                           ::rustc_target::spec::abi::Abi::Rust, ast::Generics::default(), main_body);
     P(ast::Item {
         ident: Ident::from_str("main"),
         attrs: vec![main_attr],
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index 8743840e443..40d59d3ff8b 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -23,7 +23,7 @@
 //! instance, a walker looking for item names in a module will miss all of
 //! those that are created by the expansion of a macro.
 
-use abi::Abi;
+use rustc_target::spec::abi::Abi;
 use ast::*;
 use syntax_pos::Span;
 use codemap::Spanned;
diff --git a/src/libsyntax_ext/Cargo.toml b/src/libsyntax_ext/Cargo.toml
index d8eeb5ed255..1676757d9b8 100644
--- a/src/libsyntax_ext/Cargo.toml
+++ b/src/libsyntax_ext/Cargo.toml
@@ -14,4 +14,5 @@ proc_macro = { path = "../libproc_macro" }
 rustc_errors = { path = "../librustc_errors" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
-rustc_data_structures = { path = "../librustc_data_structures" }
\ No newline at end of file
+rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_target = { path = "../librustc_target" }
\ No newline at end of file
diff --git a/src/libsyntax_ext/deriving/generic/mod.rs b/src/libsyntax_ext/deriving/generic/mod.rs
index 1ef0d2b0b49..becd70149fd 100644
--- a/src/libsyntax_ext/deriving/generic/mod.rs
+++ b/src/libsyntax_ext/deriving/generic/mod.rs
@@ -191,7 +191,7 @@ use std::cell::RefCell;
 use std::collections::HashSet;
 use std::vec;
 
-use syntax::abi::Abi;
+use rustc_target::spec::abi::Abi;
 use syntax::ast::{
     self, BinOpKind, EnumDef, Expr, GenericParam, Generics, Ident, PatKind, VariantData
 };
diff --git a/src/libsyntax_ext/lib.rs b/src/libsyntax_ext/lib.rs
index 39ad594e5c5..b6721dd28f3 100644
--- a/src/libsyntax_ext/lib.rs
+++ b/src/libsyntax_ext/lib.rs
@@ -27,6 +27,7 @@ extern crate syntax_pos;
 extern crate proc_macro;
 extern crate rustc_data_structures;
 extern crate rustc_errors as errors;
+extern crate rustc_target;
 
 #[cfg(not(stage0))]
 mod diagnostics;