diff --git a/COpenCombineHelpers.podspec b/COpenCombineHelpers.podspec
deleted file mode 100644
index 6ec6f3b..0000000
--- a/COpenCombineHelpers.podspec
+++ /dev/null
@@ -1,28 +0,0 @@
-Pod::Spec.new do |spec|
-  spec.name          = "COpenCombineHelpers"
-  spec.version       = "0.6.0"
-  spec.summary       = "C++ Helpers for OpenCombine"
-
-  spec.description   = <<-DESC
-  C++ helpers necessary for the implementation of OpenCombine
-  DESC
-
-  spec.homepage      = "https://github.com/broadwaylamb/OpenCombine/"
-  spec.license       = "MIT"
-
-  spec.authors       = { "Sergej Jaskiewicz" => "jaskiewiczs@icloud.com" }
-  spec.source        = { :git => "https://github.com/broadwaylamb/OpenCombine.git", :tag => "#{spec.version}" }
-
-  spec.osx.deployment_target     = "10.10"
-  spec.ios.deployment_target     = "8.0"
-  spec.watchos.deployment_target = "2.0"
-  spec.tvos.deployment_target    = "9.0"
-
-  spec.header_mappings_dir       = "Sources/COpenCombineHelpers/include"
-  spec.source_files              = "Sources/COpenCombineHelpers/**/*.{cpp,h}"
-  spec.libraries                 = "c++"
-  
-  spec.pod_target_xcconfig = {
-    "DEFINES_MODULE" => "YES"
-  }
-end
\ No newline at end of file
diff --git a/OpenCombine.podspec b/OpenCombine.podspec
index f7986ca..710bead 100644
--- a/OpenCombine.podspec
+++ b/OpenCombine.podspec
@@ -20,6 +20,8 @@ Pod::Spec.new do |spec|
   spec.watchos.deployment_target = "2.0"
   spec.tvos.deployment_target    = "9.0"
 
-  spec.source_files = "Sources/OpenCombine/**/*.swift"
-  spec.dependency     "COpenCombineHelpers"
+  spec.source_files        = "Sources/COpenCombineHelpers/**/*.{h,cpp}", "Sources/OpenCombine/**/*.swift"
+  spec.public_header_files = "Sources/COpenCombineHelpers/include/*.h"
+
+  spec.libraries = "c++"
 end
\ No newline at end of file
diff --git a/Sources/COpenCombineHelpers/include/COpenCombineHelpers.h b/Sources/COpenCombineHelpers/include/COpenCombineHelpers.h
index d16cde1..8513c68 100644
--- a/Sources/COpenCombineHelpers/include/COpenCombineHelpers.h
+++ b/Sources/COpenCombineHelpers/include/COpenCombineHelpers.h
@@ -30,55 +30,55 @@ extern "C" {
 #pragma mark - CombineIdentifier
 
 uint64_t opencombine_next_combine_identifier(void)
-    OPENCOMBINE_SWIFT_NAME(nextCombineIdentifier());
+    OPENCOMBINE_SWIFT_NAME(__nextCombineIdentifier());
 
 #pragma mark - OpenCombineUnfairLock
 
 /// A wrapper around an opaque pointer for type safety in Swift.
 typedef struct OpenCombineUnfairLock {
     void* _Nonnull opaque;
-} OPENCOMBINE_SWIFT_NAME(UnfairLock) OpenCombineUnfairLock;
+} OPENCOMBINE_SWIFT_NAME(__UnfairLock) OpenCombineUnfairLock;
 
 /// Allocates a lock object. The allocated object must be destroyed by calling
 /// the destroy() method.
 OpenCombineUnfairLock opencombine_unfair_lock_alloc(void)
-    OPENCOMBINE_SWIFT_NAME(UnfairLock.allocate());
+    OPENCOMBINE_SWIFT_NAME(__UnfairLock.allocate());
 
 void opencombine_unfair_lock_lock(OpenCombineUnfairLock)
-    OPENCOMBINE_SWIFT_NAME(UnfairLock.lock(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairLock.lock(self:));
 
 void opencombine_unfair_lock_unlock(OpenCombineUnfairLock)
-    OPENCOMBINE_SWIFT_NAME(UnfairLock.unlock(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairLock.unlock(self:));
 
 void opencombine_unfair_lock_assert_owner(OpenCombineUnfairLock mutex)
-    OPENCOMBINE_SWIFT_NAME(UnfairLock.assertOwner(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairLock.assertOwner(self:));
 
 void opencombine_unfair_lock_dealloc(OpenCombineUnfairLock lock)
-    OPENCOMBINE_SWIFT_NAME(UnfairLock.deallocate(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairLock.deallocate(self:));
 
 #pragma mark - OpenCombineUnfairRecursiveLock
 
 /// A wrapper around an opaque pointer for type safety in Swift.
 typedef struct OpenCombineUnfairRecursiveLock {
     void* _Nonnull opaque;
-} OPENCOMBINE_SWIFT_NAME(UnfairRecursiveLock) OpenCombineUnfairRecursiveLock;
+} OPENCOMBINE_SWIFT_NAME(__UnfairRecursiveLock) OpenCombineUnfairRecursiveLock;
 
 OpenCombineUnfairRecursiveLock opencombine_unfair_recursive_lock_alloc(void)
-    OPENCOMBINE_SWIFT_NAME(UnfairRecursiveLock.allocate());
+    OPENCOMBINE_SWIFT_NAME(__UnfairRecursiveLock.allocate());
 
 void opencombine_unfair_recursive_lock_lock(OpenCombineUnfairRecursiveLock)
-    OPENCOMBINE_SWIFT_NAME(UnfairRecursiveLock.lock(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairRecursiveLock.lock(self:));
 
 void opencombine_unfair_recursive_lock_unlock(OpenCombineUnfairRecursiveLock)
-    OPENCOMBINE_SWIFT_NAME(UnfairRecursiveLock.unlock(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairRecursiveLock.unlock(self:));
 
 void opencombine_unfair_recursive_lock_dealloc(OpenCombineUnfairRecursiveLock lock)
-    OPENCOMBINE_SWIFT_NAME(UnfairRecursiveLock.deallocate(self:));
+    OPENCOMBINE_SWIFT_NAME(__UnfairRecursiveLock.deallocate(self:));
 
 #pragma mark - Breakpoint
 
 OPENCOMBINE_ALWAYS_INLINE
-inline void opencombine_stop_in_debugger(void) OPENCOMBINE_SWIFT_NAME(stopInDebugger());
+inline void opencombine_stop_in_debugger(void) OPENCOMBINE_SWIFT_NAME(__stopInDebugger());
 
 void opencombine_stop_in_debugger(void) {
     raise(SIGTRAP);
diff --git a/Sources/OpenCombine/CombineIdentifier.swift b/Sources/OpenCombine/CombineIdentifier.swift
index e8fe535..bdede01 100644
--- a/Sources/OpenCombine/CombineIdentifier.swift
+++ b/Sources/OpenCombine/CombineIdentifier.swift
@@ -5,14 +5,16 @@
 //  Created by Sergej Jaskiewicz on 10.06.2019.
 //
 
-import func COpenCombineHelpers.nextCombineIdentifier
+#if canImport(COpenCombineHelpers)
+import COpenCombineHelpers
+#endif
 
 public struct CombineIdentifier: Hashable, CustomStringConvertible {
 
     private let value: UInt64
 
     public init() {
-        value = nextCombineIdentifier()
+        value = __nextCombineIdentifier()
     }
 
     public init(_ obj: AnyObject) {
diff --git a/Sources/OpenCombine/CurrentValueSubject.swift b/Sources/OpenCombine/CurrentValueSubject.swift
index e3ff254..87dca6e 100644
--- a/Sources/OpenCombine/CurrentValueSubject.swift
+++ b/Sources/OpenCombine/CurrentValueSubject.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 11.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A subject that wraps a single value and publishes a new element whenever the value
 /// changes.
diff --git a/Sources/OpenCombine/Future.swift b/Sources/OpenCombine/Future.swift
index 7903509..18ee64e 100644
--- a/Sources/OpenCombine/Future.swift
+++ b/Sources/OpenCombine/Future.swift
@@ -5,7 +5,9 @@
 //  Created by Max Desiatov on 24/11/2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A publisher that eventually produces one value and then finishes or fails.
 public final class Future<Output, Failure>: Publisher where Failure: Error {
diff --git a/Sources/OpenCombine/Helpers/FilterProducer.swift b/Sources/OpenCombine/Helpers/FilterProducer.swift
index 203403a..2e4d20d 100644
--- a/Sources/OpenCombine/Helpers/FilterProducer.swift
+++ b/Sources/OpenCombine/Helpers/FilterProducer.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 23.10.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A helper class that acts like both subscriber and subscription.
 ///
diff --git a/Sources/OpenCombine/Helpers/Locking.swift b/Sources/OpenCombine/Helpers/Locking.swift
index 0ead44a..fca1b58 100644
--- a/Sources/OpenCombine/Helpers/Locking.swift
+++ b/Sources/OpenCombine/Helpers/Locking.swift
@@ -5,7 +5,12 @@
 //  Created by Sergej Jaskiewicz on 11.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
+
+internal typealias UnfairLock = __UnfairLock
+internal typealias UnfairRecursiveLock = __UnfairRecursiveLock
 
 extension UnfairRecursiveLock {
 
diff --git a/Sources/OpenCombine/Helpers/ReduceProducer.swift b/Sources/OpenCombine/Helpers/ReduceProducer.swift
index 931cb0e..f86e728 100644
--- a/Sources/OpenCombine/Helpers/ReduceProducer.swift
+++ b/Sources/OpenCombine/Helpers/ReduceProducer.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 22.09.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A helper class that acts like both subscriber and subscription.
 ///
diff --git a/Sources/OpenCombine/Helpers/SubjectSubscriber.swift b/Sources/OpenCombine/Helpers/SubjectSubscriber.swift
index 53963eb..61b2054 100644
--- a/Sources/OpenCombine/Helpers/SubjectSubscriber.swift
+++ b/Sources/OpenCombine/Helpers/SubjectSubscriber.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 16/09/2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 // NOTE: This class has been audited for thread safety.
 internal final class SubjectSubscriber<Downstream: Subject>
diff --git a/Sources/OpenCombine/PassthroughSubject.swift b/Sources/OpenCombine/PassthroughSubject.swift
index b549df3..49892e8 100644
--- a/Sources/OpenCombine/PassthroughSubject.swift
+++ b/Sources/OpenCombine/PassthroughSubject.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 11.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A subject that passes along values and completion.
 ///
diff --git a/Sources/OpenCombine/Publishers/Publishers.Autoconnect.swift b/Sources/OpenCombine/Publishers/Publishers.Autoconnect.swift
index d46a645..f60741b 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Autoconnect.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Autoconnect.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 18/09/2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension ConnectablePublisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Breakpoint.swift b/Sources/OpenCombine/Publishers/Publishers.Breakpoint.swift
index 58a20b8..afecd75 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Breakpoint.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Breakpoint.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 03.12.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
@@ -148,21 +150,21 @@ extension Publishers.Breakpoint {
 
         func receive(subscription: Subscription) {
             if breakpoint.receiveSubscription?(subscription) == true {
-                stopInDebugger()
+                __stopInDebugger()
             }
             downstream.receive(subscription: subscription)
         }
 
         func receive(_ input: Upstream.Output) -> Subscribers.Demand {
             if breakpoint.receiveOutput?(input) == true {
-                stopInDebugger()
+                __stopInDebugger()
             }
             return downstream.receive(input)
         }
 
         func receive(completion: Subscribers.Completion<Upstream.Failure>) {
             if breakpoint.receiveCompletion?(completion) == true {
-                stopInDebugger()
+                __stopInDebugger()
             }
             downstream.receive(completion: completion)
         }
diff --git a/Sources/OpenCombine/Publishers/Publishers.Delay.swift b/Sources/OpenCombine/Publishers/Publishers.Delay.swift
index e5f5254..5a6f100 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Delay.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Delay.swift
@@ -5,7 +5,9 @@
 //  Created by Евгений Богомолов on 07/09/2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Drop.swift b/Sources/OpenCombine/Publishers/Publishers.Drop.swift
index e353527..f0db237 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Drop.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Drop.swift
@@ -5,7 +5,9 @@
 //  Created by Sven Weidauer on 03.10.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
     /// Omits the specified number of elements before republishing subsequent elements.
diff --git a/Sources/OpenCombine/Publishers/Publishers.DropWhile.swift b/Sources/OpenCombine/Publishers/Publishers.DropWhile.swift
index 9a35ea5..362b8c7 100644
--- a/Sources/OpenCombine/Publishers/Publishers.DropWhile.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.DropWhile.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 16.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.FlatMap.swift b/Sources/OpenCombine/Publishers/Publishers.FlatMap.swift
index 32e046c..2288614 100644
--- a/Sources/OpenCombine/Publishers/Publishers.FlatMap.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.FlatMap.swift
@@ -4,7 +4,9 @@
 //  Created by Eric Patey on 16.08.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
     /// Transforms all elements from an upstream publisher into a new or existing
diff --git a/Sources/OpenCombine/Publishers/Publishers.HandleEvents.swift b/Sources/OpenCombine/Publishers/Publishers.HandleEvents.swift
index 8db42cd..29b62e9 100644
--- a/Sources/OpenCombine/Publishers/Publishers.HandleEvents.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.HandleEvents.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 03.12.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.IgnoreOutput.swift b/Sources/OpenCombine/Publishers/Publishers.IgnoreOutput.swift
index a34b8b2..8fce777 100644
--- a/Sources/OpenCombine/Publishers/Publishers.IgnoreOutput.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.IgnoreOutput.swift
@@ -4,7 +4,9 @@
 //  Created by Eric Patey on 16.08.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Map.swift b/Sources/OpenCombine/Publishers/Publishers.Map.swift
index 47f9110..e1bca80 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Map.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Map.swift
@@ -5,7 +5,9 @@
 //  Created by Anton Nazarov on 25.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.MeasureInterval.swift b/Sources/OpenCombine/Publishers/Publishers.MeasureInterval.swift
index db6f41e..85a958b 100644
--- a/Sources/OpenCombine/Publishers/Publishers.MeasureInterval.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.MeasureInterval.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 03.12.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Multicast.swift b/Sources/OpenCombine/Publishers/Publishers.Multicast.swift
index 84f84e1..c6a3197 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Multicast.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Multicast.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 14.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Output.swift b/Sources/OpenCombine/Publishers/Publishers.Output.swift
index 2e5c892..ba1ba94 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Output.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Output.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 24.10.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Print.swift b/Sources/OpenCombine/Publishers/Publishers.Print.swift
index 4987335..9347948 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Print.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Print.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 16.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.ReceiveOn.swift b/Sources/OpenCombine/Publishers/Publishers.ReceiveOn.swift
index 7e236d9..8cdca56 100644
--- a/Sources/OpenCombine/Publishers/Publishers.ReceiveOn.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.ReceiveOn.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 02.12.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
     /// Specifies the scheduler on which to receive elements from the publisher.
diff --git a/Sources/OpenCombine/Publishers/Publishers.ReplaceError.swift b/Sources/OpenCombine/Publishers/Publishers.ReplaceError.swift
index a38a77e..3de0b75 100644
--- a/Sources/OpenCombine/Publishers/Publishers.ReplaceError.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.ReplaceError.swift
@@ -5,7 +5,9 @@
 //  Created by Bogdan Vlad on 8/29/19.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
     /// Replaces any errors in the stream with the provided element.
diff --git a/Sources/OpenCombine/Publishers/Publishers.Scan.swift b/Sources/OpenCombine/Publishers/Publishers.Scan.swift
index 9a0cc3b..3a96a8c 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Scan.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Scan.swift
@@ -4,7 +4,9 @@
 //  Created by Eric Patey on 26.08.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.Sequence.swift b/Sources/OpenCombine/Publishers/Publishers.Sequence.swift
index c73a3b9..0036d4f 100644
--- a/Sources/OpenCombine/Publishers/Publishers.Sequence.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.Sequence.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 19.06.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publishers {
 
diff --git a/Sources/OpenCombine/Publishers/Publishers.SubscribeOn.swift b/Sources/OpenCombine/Publishers/Publishers.SubscribeOn.swift
index 6e63b9f..7b4f02f 100644
--- a/Sources/OpenCombine/Publishers/Publishers.SubscribeOn.swift
+++ b/Sources/OpenCombine/Publishers/Publishers.SubscribeOn.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 02.12.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 extension Publisher {
 
diff --git a/Sources/OpenCombine/Publishers/Record.swift b/Sources/OpenCombine/Publishers/Record.swift
index e304e08..daa824f 100644
--- a/Sources/OpenCombine/Publishers/Record.swift
+++ b/Sources/OpenCombine/Publishers/Record.swift
@@ -5,7 +5,9 @@
 //  Created by Sergej Jaskiewicz on 12.11.2019.
 //
 
+#if canImport(COpenCombineHelpers)
 import COpenCombineHelpers
+#endif
 
 /// A publisher that allows for recording a series of inputs and a completion for later
 /// playback to each subscriber.