Now builds on Ubuntu

.gitignore

@@ -46,3 +46,6 @@ xcuserdata
 # Carthage/Checkouts
 
 Carthage/Build
+
+# Swift
+.build

.swift-version

@@ -0,0 +1 @@
+swift-2.2-SNAPSHOT-2015-12-31-a

Dockerfile

@@ -0,0 +1,7 @@
+FROM swiftdocker/swift
+
+# Build the app
+ADD Package.swift /data/app/
+ADD Source/*.swift /data/app/Source/
+WORKDIR /data/app/
+RUN swift build -c release

Package.swift

@@ -0,0 +1,7 @@
+import PackageDescription
+
+let package = Package(
+    name: "Safe",
+    targets: [],
+    dependencies: []
+)

Source/chan.swift

@@ -42,7 +42,8 @@ public class Chan<T> : SequenceType {
     public init(_ capacity: Int = 0){
         cap = capacity
         idMutex.lock()
-        id = ++idCounter
+        idCounter += 1
+        id = idCounter
         idMutex.unlock()
     }
     /// The number of elements queued (unread) in the channel buffer
@@ -81,7 +82,8 @@ public class Chan<T> : SequenceType {
         cond.mutex.lock()
         defer { cond.mutex.unlock() }
         if closed {
-            NSException.raise("Exception", format: "send on closed channel", arguments: getVaList([]))
+            assertionFailure("Send on closed channel")
+            // NSException.raise("Exception", format: "send on closed channel", arguments: getVaList([]))
         }
         msgs.append(msg)
         broadcast()
@@ -109,7 +111,7 @@ public class Chan<T> : SequenceType {
     }
     public typealias Generator = AnyGenerator<T>
     public func generate() -> Generator {
-        return anyGenerator {
+        return AnyGenerator {
             return <-self
         }
     }

Source/dispatch.swift

@@ -14,6 +14,10 @@
 * http://golang.org/ref/spec
 */
 
+#if os(Linux)
+import Glibc
+#endif
+
 import Foundation
 
 private let pt_entry: @convention(c) (UnsafeMutablePointer<Void>) -> UnsafeMutablePointer<Void> = { (ctx) in

Source/select.swift

@@ -8,6 +8,10 @@
 * of the MIT license.  See the LICENSE file for details.
 */
 
+#if os(Linux)
+import Glibc
+#endif
+
 import Foundation
 
 private protocol ItemAny {
@@ -37,7 +41,7 @@ private class Item<T> : ItemAny {
         if let chan = chan {
             chan.cond.mutex.lock()
             defer { chan.cond.mutex.unlock() }
-            for var i = 0; i < chan.gconds.count; i++ {
+            for i in 0...chan.gconds.count {
                 if chan.gconds[i] === cond {
                     chan.gconds.removeAtIndex(i)
                     return
@@ -121,11 +125,16 @@ private class ChanGroup {
     }
     func randomInts(count : Int) -> [Int]{
         var ints = [Int](count: count, repeatedValue:0)
-        for var i = 0; i < count; i++ {
+        for i in 0...count {
             ints[i] = i
         }
-        for var i = 0; i < count; i++ {
+        for i in 0...count {
+            #if os(Linux)
+            let r = Int(random()) % count
+            #else
             let r = Int(arc4random()) % count
+            #endif
+
             let t = ints[i]
             ints[i] = ints[r]
             ints[r] = t

Source/sync.swift

@@ -14,6 +14,10 @@
 * http://golang.org/pkg/sync/
 */
 
+#if os(Linux)
+import Glibc
+#endif
+
 import Foundation
 
 /// The WaitResult enum is used as a return value by Mutex.wait()
@@ -178,7 +182,8 @@ public class WaitGroup {
         defer { cond.mutex.unlock() }
         count += delta
         if count < 0 {
-            NSException.raise("Exception", format: "negative WaitGroup counter", arguments: getVaList([]))
+            assertionFailure("negative WaitGroup counter")
+            // NSException.raise("Exception", format: "negative WaitGroup counter", arguments: getVaList([]))
         }
         cond.broadcast()
     }