diff --git a/core-foundation-sys/src/lib.rs b/core-foundation-sys/src/lib.rs
index cc84bc3..a32eae8 100644
--- a/core-foundation-sys/src/lib.rs
+++ b/core-foundation-sys/src/lib.rs
@@ -10,4 +10,5 @@ pub mod date;
 pub mod dictionary;
 pub mod number;
 pub mod runloop;
+pub mod set;
 pub mod string;
diff --git a/core-foundation-sys/src/set.rs b/core-foundation-sys/src/set.rs
new file mode 100644
index 0000000..9ef4a24
--- /dev/null
+++ b/core-foundation-sys/src/set.rs
@@ -0,0 +1,43 @@
+use libc::c_void;
+
+use base::{CFAllocatorRef, CFIndex, CFTypeID};
+
+pub type CFSetRetainCallBack = *const u8;
+pub type CFSetReleaseCallBack = *const u8;
+pub type CFSetCopyDescriptionCallBack = *const u8;
+pub type CFSetEqualCallBack = *const u8;
+pub type CFSetHashCallBack = *const u8;
+
+#[repr(C)]
+#[derive(Clone, Copy)]
+pub struct CFSetCallBacks {
+    pub version: CFIndex,
+    pub retain: CFSetRetainCallBack,
+    pub release: CFSetReleaseCallBack,
+    pub copyDescription: CFSetCopyDescriptionCallBack,
+    pub equal: CFSetEqualCallBack,
+    pub hash: CFSetHashCallBack,
+}
+
+#[repr(C)]
+struct __CFSet;
+
+pub type CFSetRef = *const __CFSet;
+
+extern {
+    /*
+     * CFSet.h
+     */
+
+    pub static kCFTypeSetCallBacks: CFSetCallBacks;
+
+    /* Creating Sets */
+    pub fn CFSetCreate(allocator: CFAllocatorRef, values: *const *const c_void, numValues: CFIndex,
+                       callBacks: *const CFSetCallBacks) -> CFSetRef;
+
+    /* Applying a Function to Set Members */
+    //fn CFSetApplyFunction
+
+    pub fn CFSetGetTypeID() -> CFTypeID;
+}
+
diff --git a/core-foundation/src/set.rs b/core-foundation/src/set.rs
index 680007f..00f9190 100644
--- a/core-foundation/src/set.rs
+++ b/core-foundation/src/set.rs
@@ -9,37 +9,14 @@
 
 //! An immutable bag of elements.
 
-use core_foundation_sys::base::{CFAllocatorRef, CFIndex, CFRelease};
-use core_foundation_sys::base::{CFTypeID, CFTypeRef, kCFAllocatorDefault};
+use core_foundation_sys::base::CFRelease;
+use core_foundation_sys::base::{CFTypeRef, kCFAllocatorDefault};
+use core_foundation_sys::set::*;
 
 use base::{CFIndexConvertible, TCFType};
 
-use libc::c_void;
 use std::mem;
 
-pub type CFSetRetainCallBack = *const u8;
-pub type CFSetReleaseCallBack = *const u8;
-pub type CFSetCopyDescriptionCallBack = *const u8;
-pub type CFSetEqualCallBack = *const u8;
-pub type CFSetHashCallBack = *const u8;
-
-#[allow(dead_code)]
-#[repr(C)]
-#[derive(Clone, Copy)]
-pub struct CFSetCallBacks {
-    version: CFIndex,
-    retain: CFSetRetainCallBack,
-    release: CFSetReleaseCallBack,
-    copyDescription: CFSetCopyDescriptionCallBack,
-    equal: CFSetEqualCallBack,
-    hash: CFSetHashCallBack,
-}
-
-#[repr(C)]
-struct __CFSet;
-
-pub type CFSetRef = *const __CFSet;
-
 /// An immutable bag of elements.
 pub struct CFSet(CFSetRef);
 
@@ -66,22 +43,3 @@ impl CFSet {
         }
     }
 }
-
-#[link(name = "CoreFoundation", kind = "framework")]
-extern {
-    /*
-     * CFSet.h
-     */
-
-    static kCFTypeSetCallBacks: CFSetCallBacks;
-
-    /* Creating Sets */
-    fn CFSetCreate(allocator: CFAllocatorRef, values: *const *const c_void, numValues: CFIndex,
-                   callBacks: *const CFSetCallBacks) -> CFSetRef;
-
-    /* Applying a Function to Set Members */
-    //fn CFSetApplyFunction
-
-    fn CFSetGetTypeID() -> CFTypeID;
-}
-