diff --git a/.swift-version b/.swift-version
new file mode 100644
index 0000000..9f55b2c
--- /dev/null
+++ b/.swift-version
@@ -0,0 +1 @@
+3.0
diff --git a/Package.swift b/Package.swift
index 556ee50..79caa17 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,12 +1,7 @@
 import Foundation
 import PackageDescription
 
-#if os(Linux)
-   let fm = FileManager.default()
-#else
-   let fm = FileManager.default
-#endif
-
+let fm = FileManager.default
 
 ///need to drill down into the omr-agentcore directory from where we are
 if fm.currentDirectoryPath.contains("omr-agentcore") == false {
@@ -155,7 +150,7 @@ if fm.fileExists(atPath: "src/agentcore") == false {
    let linuxVariations = ["defined(_Linux)", "defined(LINUX)", "defined(_LINUX)", "defined (_LINUX)"]
    var fileEnum = fm.enumerator(atPath: srcDirPath)
    while let fn = fileEnum?.nextObject() {
-      let fileName = String(fn)
+      let fileName = String(describing: fn)
       ///only want source files or header files
       if fileName.hasSuffix(".cpp") || fileName.hasSuffix(".h") {
          print(fileName)
@@ -181,7 +176,7 @@ if fm.fileExists(atPath: "src/agentcore") == false {
    print("Attempting to enumerate " + targetWorkingDir)
    fileEnum = fm.enumerator(atPath: targetWorkingDir)
    while let fn = fileEnum?.nextObject() {
-      let fileName = String(fn)
+      let fileName = String(describing: fn)
       if fileName != "include" {
          var fileContents = try String(contentsOfFile: fileName, encoding: encoding)
          fileContents = fileContents.replacingOccurrences(of: "#include \"MQTT", 
@@ -205,7 +200,7 @@ if fm.fileExists(atPath: "src/agentcore") == false {
       fileEnum = fm.enumerator(atPath: targetWorkingDir)
       while let fn = fileEnum?.nextObject() {
          print(fn)
-         let fileName = String(fn)
+         let fileName = String(describing: fn)
          if fileName != "include" {
             if fileName.hasSuffix(".cpp") {
                source = fileName
@@ -238,7 +233,7 @@ if fm.fileExists(atPath: "src/agentcore") == false {
    fileEnum = fm.enumerator(atPath: targetWorkingDir)
    while let fn = fileEnum?.nextObject() {
       print(fn)
-      let fileName = String(fn)
+      let fileName = String(describing: fn)
       //ignore the include directory and anything that isn't a header or source file
       if fileName.hasPrefix(IBMRAS_DIR) && (fileName.hasSuffix(".cpp") || fileName.hasSuffix(".h")) {
          var fileContents = try String(contentsOfFile: fileName, encoding: encoding)
@@ -275,13 +270,13 @@ let package = Package(
       Target(name: "cpuplugin", dependencies: [.Target(name: "agentcore")]),
       Target(name: "envplugin", dependencies: [.Target(name: "agentcore")]),
       Target(name: "memplugin", dependencies: [.Target(name: "agentcore")]),
-      Target(name: "ostreamplugin", dependencies: [.Target(name: "agentcore")]),
       Target(name: "hcapiplugin", dependencies: [.Target(name: "agentcore")])
    ],
    exclude: [ "src/agentcore/ibmras/common/port/aix",
               "src/agentcore/ibmras/common/port/windows",
               "src/agentcore/ibmras/common/data",
               "src/agentcore/ibmras/common/util/memUtils.cpp",
+              "src/ostreamplugin",
               "src/paho/Windows Build",
               "src/paho/build",
               "src/paho/doc",
diff --git a/src/ibmras/common/util/LibraryUtils.cpp b/src/ibmras/common/util/LibraryUtils.cpp
index d2fc718..c21e52f 100644
--- a/src/ibmras/common/util/LibraryUtils.cpp
+++ b/src/ibmras/common/util/LibraryUtils.cpp
@@ -58,7 +58,13 @@ ibmras::common::util::LibraryUtils::Handle LibraryUtils::openLibrary(const std::
 #if defined(WINDOWS)
 	handle.handle = LoadLibrary(lib.c_str());
 #else
-	handle.handle = dlopen(lib.c_str(), RTLD_LAZY);
+#if defined(__MACH__) || defined(__APPLE__)
+        std::size_t found = lib.rfind(".dylib", lib.size() - 6);
+        if (found == std::string::npos) {
+           return Handle();
+        }
+#endif
+        handle.handle = dlopen(lib.c_str(), RTLD_LAZY);
 #endif
 	return handle;
 }
diff --git a/src/ibmras/monitoring/AgentExtensions.h b/src/ibmras/monitoring/AgentExtensions.h
index db4434a..bef801c 100644
--- a/src/ibmras/monitoring/AgentExtensions.h
+++ b/src/ibmras/monitoring/AgentExtensions.h
@@ -147,7 +147,7 @@ typedef struct loaderCoreFunctions {
 
 } loaderCoreFunctions;
 
-loaderCoreFunctions* loader_entrypoint();
+DECL loaderCoreFunctions* loader_entrypoint();
 
 typedef int (*PLUGIN_INITIALIZE)(const char* properties);
 typedef pushsource* (*PUSH_SOURCE_REGISTER)(agentCoreFunctions aCF, unsigned int provID);
diff --git a/src/ibmras/monitoring/plugins/common/cpu/cpuplugin.cpp b/src/ibmras/monitoring/plugins/common/cpu/cpuplugin.cpp
index 9988673..3965448 100644
--- a/src/ibmras/monitoring/plugins/common/cpu/cpuplugin.cpp
+++ b/src/ibmras/monitoring/plugins/common/cpu/cpuplugin.cpp
@@ -564,7 +564,7 @@ bool CpuPlugin::read_process_cpu_time(uint64* proctime, const uint32 NS_PER_HZ)
         // of the running process. This can pose a problem if the filename
         // has a space (i.e. (Passenger NodeA)). This checks to read the stream
         // until the end parenthese is found.
-	while(dummyStr.back() != ')') {
+	while(dummyStr[dummyStr.length()-1] != ')') {
 		filestream >> dummyStr;
 	}