diff --git a/CMakeLists.txt b/CMakeLists.txt
index 592b7c05..ca86274f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -105,7 +105,6 @@ CheckFileList(SURROGATE_SOURCES ${SELF_TEST_DIR}/SurrogateCpps)
 # Please keep these ordered alphabetically
 set(TOP_LEVEL_HEADERS
         ${HEADER_DIR}/catch.hpp
-        ${HEADER_DIR}/catch_session.hpp
         ${HEADER_DIR}/catch_with_main.hpp
         )
 CheckFileList(TOP_LEVEL_HEADERS ${HEADER_DIR})
@@ -169,6 +168,7 @@ set(INTERNAL_HEADERS
         ${HEADER_DIR}/internal/catch_benchmark.h
         ${HEADER_DIR}/internal/catch_section.h
         ${HEADER_DIR}/internal/catch_section_info.h
+        ${HEADER_DIR}/internal/catch_session.h
         ${HEADER_DIR}/internal/catch_startup_exception_registry.h
         ${HEADER_DIR}/internal/catch_stream.h
         ${HEADER_DIR}/internal/catch_streambuf.h
@@ -222,6 +222,7 @@ set(IMPL_SOURCES
         ${HEADER_DIR}/internal/catch_run_context.cpp
         ${HEADER_DIR}/internal/catch_section.cpp
         ${HEADER_DIR}/internal/catch_section_info.cpp
+        ${HEADER_DIR}/internal/catch_session.cpp
         ${HEADER_DIR}/internal/catch_startup_exception_registry.cpp
         ${HEADER_DIR}/internal/catch_stream.cpp
         ${HEADER_DIR}/internal/catch_stringref.cpp
diff --git a/include/catch_session.hpp b/include/catch_session.hpp
deleted file mode 100644
index ed1a826a..00000000
--- a/include/catch_session.hpp
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- *  Created by Phil on 31/10/2010.
- *  Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
- *
- *  Distributed under the Boost Software License, Version 1.0. (See accompanying
- *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- */
-#ifndef TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
-#define TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
-
-#include "internal/catch_commandline.hpp"
-#include "internal/catch_console_colour.hpp"
-#include "internal/catch_enforce.h"
-#include "internal/catch_list.h"
-#include "internal/catch_run_context.hpp"
-#include "internal/catch_stream.h"
-#include "internal/catch_test_spec.hpp"
-#include "internal/catch_version.h"
-#include "internal/catch_interfaces_reporter.h"
-#include "internal/catch_random_number_generator.h"
-#include "internal/catch_startup_exception_registry.h"
-#include "internal/catch_text.h"
-
-#include <fstream>
-#include <cstdlib>
-#include <limits>
-#include <iomanip>
-
-namespace Catch {
-
-    IStreamingReporterPtr createReporter( std::string const& reporterName, IConfigPtr const& config ) {
-        auto reporter = getRegistryHub().getReporterRegistry().create( reporterName, config );
-        CATCH_ENFORCE( reporter, "No reporter registered with name: '" << reporterName << "'" );
-
-        return reporter;
-    }
-
-#ifndef CATCH_CONFIG_DEFAULT_REPORTER
-#define CATCH_CONFIG_DEFAULT_REPORTER "console"
-#endif
-
-    IStreamingReporterPtr makeReporter( std::shared_ptr<Config> const& config ) {
-        auto const& reporterNames = config->getReporterNames();
-        if( reporterNames.empty() )
-            return createReporter(CATCH_CONFIG_DEFAULT_REPORTER, config );
-
-        IStreamingReporterPtr reporter;
-        for( auto const& name : reporterNames )
-            addReporter( reporter, createReporter( name, config ) );
-        return reporter;
-    }
-    void addListeners( IStreamingReporterPtr& reporters, IConfigPtr const& config ) {
-        auto const& listeners = getRegistryHub().getReporterRegistry().getListeners();
-        for( auto const& listener : listeners )
-            addReporter(reporters, listener->create( ReporterConfig( config ) ) );
-    }
-
-
-    Totals runTests( std::shared_ptr<Config> const& config ) {
-
-        IStreamingReporterPtr reporter = makeReporter( config );
-        addListeners( reporter, config );
-
-        RunContext context( config, std::move( reporter ) );
-
-        Totals totals;
-
-        context.testGroupStarting( config->name(), 1, 1 );
-
-        TestSpec testSpec = config->testSpec();
-        if( !testSpec.hasFilters() )
-            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "~[.]" ).testSpec(); // All not hidden tests
-
-        std::vector<TestCase> const& allTestCases = getAllTestCasesSorted( *config );
-        for( auto const& testCase : allTestCases ) {
-            if( !context.aborting() && matchTest( testCase, testSpec, *config ) )
-                totals += context.runTest( testCase );
-            else
-                context.reporter().skipTest( testCase );
-        }
-
-        context.testGroupEnded( config->name(), totals, 1, 1 );
-        return totals;
-    }
-
-    void applyFilenamesAsTags( IConfig const& config ) {
-        auto& tests = const_cast<std::vector<TestCase>&>( getAllTestCasesSorted( config ) );
-        for( auto& testCase : tests ) {
-            auto tags = testCase.tags;
-
-            std::string filename = testCase.lineInfo.file;
-            std::string::size_type lastSlash = filename.find_last_of( "\\/" );
-            if( lastSlash != std::string::npos )
-                filename = filename.substr( lastSlash+1 );
-
-            std::string::size_type lastDot = filename.find_last_of( '.' );
-            if( lastDot != std::string::npos )
-                filename = filename.substr( 0, lastDot );
-
-            tags.push_back( '#' + filename );
-            setTags( testCase, tags );
-        }
-    }
-
-
-    class Session : NonCopyable {
-        static const int MaxExitCode;
-    public:
-
-        Session() {
-            static bool alreadyInstantiated = false;
-            if( alreadyInstantiated )
-                CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" );
-            alreadyInstantiated = true;
-            m_cli = makeCommandLineParser( m_configData );
-        }
-        ~Session() override {
-            Catch::cleanUp();
-        }
-
-        void showHelp() const {
-            Catch::cout()
-                    << "\nCatch v" << libraryVersion() << "\n"
-                    << m_cli << std::endl
-                    << "For more detailed usage please see the project docs\n" << std::endl;
-        }
-        void libIdentify() {
-            Catch::cout()
-                    << std::left << std::setw(16) << "description: " << "A Catch test executable\n"
-                    << std::left << std::setw(16) << "category: " << "testframework\n"
-                    << std::left << std::setw(16) << "framework: " << "Catch Test\n"
-                    << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
-        }
-
-        int applyCommandLine( int argc, char* argv[] ) {
-            auto result = m_cli.parse( clara::Args( argc, argv ) );
-            if( !result ) {
-                Catch::cerr()
-                    << Colour( Colour::Red )
-                    << "\nError(s) in input:\n"
-                    << Column( result.errorMessage() ).indent( 2 )
-                    << "\n\n";
-                Catch::cerr() << "Run with -? for usage\n" << std::endl;
-                return MaxExitCode;
-            }
-
-            if( m_configData.showHelp )
-                showHelp();
-            if( m_configData.libIdentify )
-                libIdentify();
-            m_config.reset();
-            return 0;
-        }
-
-        void useConfigData( ConfigData const& configData ) {
-            m_configData = configData;
-            m_config.reset();
-        }
-
-        int run( int argc, char* argv[] ) {
-            const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
-            if ( !exceptions.empty() ) {
-                Catch::cerr() << "Errors occured during startup!" << '\n';
-                // iterate over all exceptions and notify user
-                for ( const auto& ex_ptr : exceptions ) {
-                    try {
-                        std::rethrow_exception(ex_ptr);
-                    } catch ( std::exception const& ex ) {
-                        Catch::cerr() << ex.what() << '\n';
-                    }
-                }
-                return 1;
-            }
-            int returnCode = applyCommandLine( argc, argv );
-            if( returnCode == 0 )
-                returnCode = run();
-            return returnCode;
-        }
-
-    #if defined(WIN32) && defined(UNICODE)
-        int run( int argc, wchar_t* const argv[] ) {
-
-            char **utf8Argv = new char *[ argc ];
-
-            for ( int i = 0; i < argc; ++i ) {
-                int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );
-
-                utf8Argv[ i ] = new char[ bufSize ];
-
-                WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
-            }
-
-            int returnCode = run( argc, utf8Argv );
-
-            for ( int i = 0; i < argc; ++i )
-                delete [] utf8Argv[ i ];
-
-            delete [] utf8Argv;
-
-            return returnCode;
-        }
-    #endif
-        int run() {
-            if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
-                Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
-                static_cast<void>(std::getchar());
-            }
-            int exitCode = runInternal();
-            if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
-                Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
-                static_cast<void>(std::getchar());
-            }
-            return exitCode;
-        }
-
-        clara::Parser const& cli() const {
-            return m_cli;
-        }
-        void cli( clara::Parser const& newParser ) {
-            m_cli = newParser;
-        }
-        ConfigData& configData() {
-            return m_configData;
-        }
-        Config& config() {
-            if( !m_config )
-                m_config = std::make_shared<Config>( m_configData );
-            return *m_config;
-        }
-    private:
-        int runInternal() {
-            if( m_configData.showHelp || m_configData.libIdentify )
-                return 0;
-
-            try
-            {
-                config(); // Force config to be constructed
-
-                seedRng( *m_config );
-
-                if( m_configData.filenamesAsTags )
-                    applyFilenamesAsTags( *m_config );
-
-                // Handle list request
-                if( Option<std::size_t> listed = list( config() ) )
-                    return static_cast<int>( *listed );
-
-                return (std::min)( MaxExitCode, static_cast<int>( runTests( m_config ).assertions.failed ) );
-            }
-            catch( std::exception& ex ) {
-                Catch::cerr() << ex.what() << std::endl;
-                return MaxExitCode;
-            }
-        }
-
-        clara::Parser m_cli;
-        ConfigData m_configData;
-        std::shared_ptr<Config> m_config;
-    };
-
-    const int Session::MaxExitCode = 255;
-
-} // end namespace Catch
-
-#endif // TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
diff --git a/include/internal/catch_common.h b/include/internal/catch_common.h
index 53602ee6..5e22825d 100644
--- a/include/internal/catch_common.h
+++ b/include/internal/catch_common.h
@@ -36,8 +36,8 @@ namespace Catch {
         NonCopyable& operator = ( NonCopyable && )     = delete;
 
     protected:
-        NonCopyable() {}
-        virtual ~NonCopyable();
+        NonCopyable()          = default;
+        virtual ~NonCopyable() = default;
     };
 
     struct SourceLineInfo {
diff --git a/include/internal/catch_config.hpp b/include/internal/catch_config.hpp
index 0f86137f..80847be5 100644
--- a/include/internal/catch_config.hpp
+++ b/include/internal/catch_config.hpp
@@ -11,6 +11,9 @@
 #include "catch_test_spec_parser.hpp"
 #include "catch_interfaces_config.h"
 
+// Libstdc++ doesn't like incomplete classes for unique_ptr
+#include "catch_stream.h"
+
 #include <memory>
 #include <vector>
 #include <string>
diff --git a/include/internal/catch_default_main.hpp b/include/internal/catch_default_main.hpp
index 9b7c2890..8155c43f 100644
--- a/include/internal/catch_default_main.hpp
+++ b/include/internal/catch_default_main.hpp
@@ -8,6 +8,8 @@
 #ifndef TWOBLUECUBES_CATCH_DEFAULT_MAIN_HPP_INCLUDED
 #define TWOBLUECUBES_CATCH_DEFAULT_MAIN_HPP_INCLUDED
 
+#include "catch_session.h"
+
 #ifndef __OBJC__
 
 #if defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
diff --git a/include/internal/catch_external_interfaces.h b/include/internal/catch_external_interfaces.h
index dffd5187..4eb55256 100644
--- a/include/internal/catch_external_interfaces.h
+++ b/include/internal/catch_external_interfaces.h
@@ -8,6 +8,7 @@
 #define TWOBLUECUBES_CATCH_EXTERNAL_INTERFACES_H_INCLUDED
 
 #include "../reporters/catch_reporter_bases.hpp"
+#include "catch_console_colour.hpp"
 #include "catch_reporter_registrars.hpp"
 
 #endif // TWOBLUECUBES_CATCH_EXTERNAL_INTERFACES_H_INCLUDED
diff --git a/include/internal/catch_impl.hpp b/include/internal/catch_impl.hpp
index d9a644d0..5debe23c 100644
--- a/include/internal/catch_impl.hpp
+++ b/include/internal/catch_impl.hpp
@@ -17,15 +17,8 @@
 #endif
 
 
-// Temporary hack to fix separately provided reporters
-#include "../reporters/catch_reporter_bases.hpp"
-#include "catch_reporter_registrars.hpp"
-//
-
 #include "internal/catch_leak_detector.h"
 
-
-#include "../catch_session.hpp"
 #include "catch_test_spec.hpp"
 #include "catch_test_case_tracker.hpp"
 
@@ -37,12 +30,6 @@ namespace Catch {
 
     // These are all here to avoid warnings about not having any out of line
     // virtual methods
-    NonCopyable::~NonCopyable() {}
-    IStream::~IStream() noexcept {}
-    FileStream::~FileStream() noexcept {}
-    CoutStream::~CoutStream() noexcept {}
-    DebugOutStream::~DebugOutStream() noexcept {}
-    StreamBufBase::~StreamBufBase() noexcept {}
     IResultCapture::~IResultCapture() {}
     ITestInvoker::~ITestInvoker() {}
     ITestCaseRegistry::~ITestCaseRegistry() {}
diff --git a/include/internal/catch_session.cpp b/include/internal/catch_session.cpp
new file mode 100644
index 00000000..d10e9510
--- /dev/null
+++ b/include/internal/catch_session.cpp
@@ -0,0 +1,251 @@
+/*
+ *  Created by Martin on 31/08/2017.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+#include "catch_session.h"
+#include "catch_commandline.hpp"
+#include "catch_console_colour.hpp"
+#include "catch_enforce.h"
+#include "catch_list.h"
+#include "catch_run_context.hpp"
+#include "catch_stream.h"
+#include "catch_test_spec.hpp"
+#include "catch_version.h"
+#include "catch_interfaces_reporter.h"
+#include "catch_random_number_generator.h"
+#include "catch_startup_exception_registry.h"
+#include "catch_text.h"
+
+#include <cstdlib>
+#include <iomanip>
+
+static const int MaxExitCode = 255;
+
+
+namespace Catch {
+
+    IStreamingReporterPtr createReporter( std::string const& reporterName, IConfigPtr const& config ) {
+        auto reporter = getRegistryHub().getReporterRegistry().create( reporterName, config );
+        CATCH_ENFORCE( reporter, "No reporter registered with name: '" << reporterName << "'" );
+
+        return reporter;
+    }
+
+#ifndef CATCH_CONFIG_DEFAULT_REPORTER
+#define CATCH_CONFIG_DEFAULT_REPORTER "console"
+#endif
+
+    IStreamingReporterPtr makeReporter( std::shared_ptr<Config> const& config ) {
+        auto const& reporterNames = config->getReporterNames();
+        if( reporterNames.empty() )
+            return createReporter(CATCH_CONFIG_DEFAULT_REPORTER, config );
+
+        IStreamingReporterPtr reporter;
+        for( auto const& name : reporterNames )
+            addReporter( reporter, createReporter( name, config ) );
+        return reporter;
+    }
+    void addListeners( IStreamingReporterPtr& reporters, IConfigPtr const& config ) {
+        auto const& listeners = getRegistryHub().getReporterRegistry().getListeners();
+        for( auto const& listener : listeners )
+            addReporter(reporters, listener->create( ReporterConfig( config ) ) );
+    }
+
+
+    Totals runTests( std::shared_ptr<Config> const& config ) {
+
+        IStreamingReporterPtr reporter = makeReporter( config );
+        addListeners( reporter, config );
+
+        RunContext context( config, std::move( reporter ) );
+
+        Totals totals;
+
+        context.testGroupStarting( config->name(), 1, 1 );
+
+        TestSpec testSpec = config->testSpec();
+        if( !testSpec.hasFilters() )
+            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "~[.]" ).testSpec(); // All not hidden tests
+
+        std::vector<TestCase> const& allTestCases = getAllTestCasesSorted( *config );
+        for( auto const& testCase : allTestCases ) {
+            if( !context.aborting() && matchTest( testCase, testSpec, *config ) )
+                totals += context.runTest( testCase );
+            else
+                context.reporter().skipTest( testCase );
+        }
+
+        context.testGroupEnded( config->name(), totals, 1, 1 );
+        return totals;
+    }
+
+    void applyFilenamesAsTags( IConfig const& config ) {
+        auto& tests = const_cast<std::vector<TestCase>&>( getAllTestCasesSorted( config ) );
+        for( auto& testCase : tests ) {
+            auto tags = testCase.tags;
+
+            std::string filename = testCase.lineInfo.file;
+            std::string::size_type lastSlash = filename.find_last_of( "\\/" );
+            if( lastSlash != std::string::npos )
+                filename = filename.substr( lastSlash+1 );
+
+            std::string::size_type lastDot = filename.find_last_of( '.' );
+            if( lastDot != std::string::npos )
+                filename = filename.substr( 0, lastDot );
+
+            tags.push_back( '#' + filename );
+            setTags( testCase, tags );
+        }
+    }
+
+
+    Session::Session() {
+        static bool alreadyInstantiated = false;
+        if( alreadyInstantiated )
+            CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" );
+        alreadyInstantiated = true;
+        m_cli = makeCommandLineParser( m_configData );
+    }
+    Session::~Session() {
+        Catch::cleanUp();
+    }
+
+    void Session::showHelp() const {
+        Catch::cout()
+                << "\nCatch v" << libraryVersion() << "\n"
+                << m_cli << std::endl
+                << "For more detailed usage please see the project docs\n" << std::endl;
+    }
+    void Session::libIdentify() {
+        Catch::cout()
+                << std::left << std::setw(16) << "description: " << "A Catch test executable\n"
+                << std::left << std::setw(16) << "category: " << "testframework\n"
+                << std::left << std::setw(16) << "framework: " << "Catch Test\n"
+                << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
+    }
+
+    int Session::applyCommandLine( int argc, char* argv[] ) {
+        auto result = m_cli.parse( clara::Args( argc, argv ) );
+        if( !result ) {
+            Catch::cerr()
+                << Colour( Colour::Red )
+                << "\nError(s) in input:\n"
+                << Column( result.errorMessage() ).indent( 2 )
+                << "\n\n";
+            Catch::cerr() << "Run with -? for usage\n" << std::endl;
+            return MaxExitCode;
+        }
+
+        if( m_configData.showHelp )
+            showHelp();
+        if( m_configData.libIdentify )
+            libIdentify();
+        m_config.reset();
+        return 0;
+    }
+
+    void Session::useConfigData( ConfigData const& configData ) {
+        m_configData = configData;
+        m_config.reset();
+    }
+
+    int Session::run( int argc, char* argv[] ) {
+        const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
+        if ( !exceptions.empty() ) {
+            Catch::cerr() << "Errors occured during startup!" << '\n';
+            // iterate over all exceptions and notify user
+            for ( const auto& ex_ptr : exceptions ) {
+                try {
+                    std::rethrow_exception(ex_ptr);
+                } catch ( std::exception const& ex ) {
+                    Catch::cerr() << ex.what() << '\n';
+                }
+            }
+            return 1;
+        }
+        int returnCode = applyCommandLine( argc, argv );
+        if( returnCode == 0 )
+            returnCode = run();
+        return returnCode;
+    }
+
+#if defined(WIN32) && defined(UNICODE)
+    int Session::run( int argc, wchar_t* const argv[] ) {
+
+        char **utf8Argv = new char *[ argc ];
+
+        for ( int i = 0; i < argc; ++i ) {
+            int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );
+
+            utf8Argv[ i ] = new char[ bufSize ];
+
+            WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
+        }
+
+        int returnCode = run( argc, utf8Argv );
+
+        for ( int i = 0; i < argc; ++i )
+            delete [] utf8Argv[ i ];
+
+        delete [] utf8Argv;
+
+        return returnCode;
+    }
+#endif
+    int Session::run() {
+        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
+            Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
+            static_cast<void>(std::getchar());
+        }
+        int exitCode = runInternal();
+        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
+            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
+            static_cast<void>(std::getchar());
+        }
+        return exitCode;
+    }
+
+    clara::Parser const& Session::cli() const {
+        return m_cli;
+    }
+    void Session::cli( clara::Parser const& newParser ) {
+        m_cli = newParser;
+    }
+    ConfigData& Session::configData() {
+        return m_configData;
+    }
+    Config& Session::config() {
+        if( !m_config )
+            m_config = std::make_shared<Config>( m_configData );
+        return *m_config;
+    }
+
+    int Session::runInternal() {
+        if( m_configData.showHelp || m_configData.libIdentify )
+            return 0;
+
+        try
+        {
+            config(); // Force config to be constructed
+
+            seedRng( *m_config );
+
+            if( m_configData.filenamesAsTags )
+                applyFilenamesAsTags( *m_config );
+
+            // Handle list request
+            if( Option<std::size_t> listed = list( config() ) )
+                return static_cast<int>( *listed );
+
+            return (std::min)( MaxExitCode, static_cast<int>( runTests( m_config ).assertions.failed ) );
+        }
+        catch( std::exception& ex ) {
+            Catch::cerr() << ex.what() << std::endl;
+            return MaxExitCode;
+        }
+    }
+
+} // end namespace Catch
diff --git a/include/internal/catch_session.h b/include/internal/catch_session.h
new file mode 100644
index 00000000..492d6d31
--- /dev/null
+++ b/include/internal/catch_session.h
@@ -0,0 +1,52 @@
+/*
+ *  Created by Phil on 31/10/2010.
+ *  Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
+
+#include "catch_commandline.hpp"
+#include "catch_config.hpp"
+#include "catch_text.h"
+
+#include <memory>
+
+namespace Catch {
+
+    class Session : NonCopyable {
+    public:
+
+        Session();
+        ~Session() override;
+
+        void showHelp() const;
+        void libIdentify();
+
+        int applyCommandLine( int argc, char* argv[] );
+
+        void useConfigData( ConfigData const& configData );
+
+        int run( int argc, char* argv[] );
+    #if defined(WIN32) && defined(UNICODE)
+        int run( int argc, wchar_t* const argv[] );
+    #endif
+        int run();
+
+        clara::Parser const& cli() const;
+        void cli( clara::Parser const& newParser );
+        ConfigData& configData();
+        Config& config();
+    private:
+        int runInternal();
+
+        clara::Parser m_cli;
+        ConfigData m_configData;
+        std::shared_ptr<Config> m_config;
+    };
+
+} // end namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
diff --git a/include/internal/catch_stream.h b/include/internal/catch_stream.h
index 488e8b20..1ab59ca3 100644
--- a/include/internal/catch_stream.h
+++ b/include/internal/catch_stream.h
@@ -24,7 +24,7 @@ namespace Catch {
 
 
     struct IStream {
-        virtual ~IStream() noexcept;
+        virtual ~IStream() = default;
         virtual std::ostream& stream() const = 0;
     };
 
@@ -32,7 +32,7 @@ namespace Catch {
         mutable std::ofstream m_ofs;
     public:
         FileStream( std::string const& filename );
-        ~FileStream() noexcept override;
+        ~FileStream() override = default;
     public: // IStream
         std::ostream& stream() const override;
     };
@@ -42,7 +42,7 @@ namespace Catch {
         mutable std::ostream m_os;
     public:
         CoutStream();
-        ~CoutStream() noexcept override;
+        ~CoutStream() override = default;
 
     public: // IStream
         std::ostream& stream() const override;
@@ -54,7 +54,7 @@ namespace Catch {
         mutable std::ostream m_os;
     public:
         DebugOutStream();
-        ~DebugOutStream() noexcept override;
+        ~DebugOutStream() override = default;
 
     public: // IStream
         std::ostream& stream() const override;
diff --git a/include/internal/catch_streambuf.h b/include/internal/catch_streambuf.h
index dba84357..7fd17e40 100644
--- a/include/internal/catch_streambuf.h
+++ b/include/internal/catch_streambuf.h
@@ -16,7 +16,7 @@ namespace Catch {
 
     class StreamBufBase : public std::streambuf {
     public:
-        virtual ~StreamBufBase() noexcept;
+        virtual ~StreamBufBase() = default;
     };
 }