diff --git a/appkit.rs b/appkit.rs
index 54a31b0..3eae4dc 100644
--- a/appkit.rs
+++ b/appkit.rs
@@ -2,13 +2,13 @@ import base::objc;
 
 #[nolink]
 #[link_args="-framework AppKit"]
-native mod appkit {
+extern mod appkit {
     fn NSBeep();
 }
 
 fn NSApp() -> base::id {
-    let klass = str::as_c_str("NSApplication") { |s| objc::objc_getClass(s) };
-    let sel = str::as_c_str("sharedApplication") { |s| objc::sel_registerName(s) };
+    let klass = str::as_c_str("NSApplication", |s| objc::objc_getClass(s));
+    let sel = str::as_c_str("sharedApplication", |s| objc::sel_registerName(s));
     ret objc::objc_msgSend(klass, sel);
 }
 
diff --git a/base.rs b/base.rs
index d0b1ec6..f25f2e6 100644
--- a/base.rs
+++ b/base.rs
@@ -8,7 +8,7 @@ type Ivar = libc::intptr_t;
 
 const nil : id = 0 as id;
 
-native mod objc {
+extern mod objc {
     fn class_addMethod(cls : Class,
                        name : SEL,
                        imp : IMP,
@@ -35,13 +35,13 @@ native mod objc {
 
 #[test]
 fn test_nsapp() {
-    let klass = str::as_c_str("NSApplication") { |s|
+    let klass = str::as_c_str("NSApplication", |s|
         objc::objc_getClass(s)
-    };
+    );
 
-    let sel = str::as_c_str("sharedApplication") { |s|
+    let sel = str::as_c_str("sharedApplication", |s|
         objc::sel_registerName(s)
-    };
+    );
 
     let nsapp = objc::objc_msgSend(klass, sel);
 
@@ -50,28 +50,28 @@ fn test_nsapp() {
 
 #[test]
 fn test_custom_obj() {
-    crust fn MyObject_doSomething(this : id, _sel : SEL) -> id {
+    extern fn MyObject_doSomething(this : id, _sel : SEL) -> id {
         io::println("doSomething");
         ret this;
     }
 
-    let NSObject = str::as_c_str("NSObject") { |s|
+    let NSObject = str::as_c_str("NSObject", |s|
         objc::objc_getClass(s)
-    };
-    let MyObject = str::as_c_str("MyObject") { |s|
+    );
+    let MyObject = str::as_c_str("MyObject", |s|
         objc::objc_allocateClassPair(NSObject, s, 0 as libc::size_t)
-    };
-    let doSomething = str::as_c_str("doSomething") { |s|
+    );
+    let doSomething = str::as_c_str("doSomething", |s|
         objc::sel_registerName(s)
-    };
-    let _ = str::as_c_str("@@:") { |types|
+    );
+    let _ = str::as_c_str("@@:", |types|
         objc::class_addMethod(MyObject, doSomething, MyObject_doSomething,
                               types)
-    };
+    );
     objc::objc_registerClassPair(MyObject);
 
-    let alloc = str::as_c_str("alloc") { |s| objc::sel_registerName(s) };
-    let init = str::as_c_str("init") { |s| objc::sel_registerName(s) };
+    let alloc = str::as_c_str("alloc", |s| objc::sel_registerName(s));
+    let init = str::as_c_str("init", |s| objc::sel_registerName(s));
 
     let mut obj = objc::objc_msgSend(MyObject, alloc);
     obj = objc::objc_msgSend(obj, init);
diff --git a/cg.rs b/cg.rs
index 94409db..055f4d9 100644
--- a/cg.rs
+++ b/cg.rs
@@ -3,7 +3,7 @@
 import libc::{c_void, c_char, size_t};
 
 #[nolink]
-native mod cg {
+extern mod cg {
     fn CGDataProviderCreateWithFilename(filename: *c_char) -> CGDataProviderRef;
     fn CGDataProviderCreateWithData(info: *c_void,
                                     data: *c_void,
diff --git a/cocoa.rs b/cocoa.rs
index 0275e83..8e65e03 100644
--- a/cocoa.rs
+++ b/cocoa.rs
@@ -5,6 +5,6 @@ fn msgSend1Id(theReceiver: base::id, theSelector: base::SEL, id: base::id) {
 
 #[link_args = "-L. -lmsgsend"]
 #[nolink]
-native mod msgsend {
+extern mod msgsend {
     fn msgSend1IdHACK(theReceiver: base::id, theSelector: base::SEL, id: base::id);
 }
diff --git a/foundation.rs b/foundation.rs
index b5b2d76..650d1a1 100644
--- a/foundation.rs
+++ b/foundation.rs
@@ -2,7 +2,7 @@ import base::objc;
 
 #[nolink]
 #[link_args="-framework Foundation"]
-native mod foundation {
+extern mod foundation {
 }
 
 enum NSAutoreleasePool {
@@ -10,12 +10,12 @@ enum NSAutoreleasePool {
 }
 
 fn NSAutoreleasePool() -> base::id {
-    let klass = str::as_c_str("NSAutoreleasePool") { |s|
+    let klass = str::as_c_str("NSAutoreleasePool", |s|
         objc::objc_getClass(s)
-    };
+    );
 
-    let alloc_sel = str::as_c_str("alloc") { |s| objc::sel_registerName(s) };
-    let init_sel = str::as_c_str("init") { |s| objc::sel_registerName(s) };
+    let alloc_sel = str::as_c_str("alloc", |s| objc::sel_registerName(s));
+    let init_sel = str::as_c_str("init", |s| objc::sel_registerName(s));
 
     let pool = objc::objc_msgSend(klass, alloc_sel);
     ret objc::objc_msgSend(pool, init_sel);