diff --git a/apps/Sync/main.cpp b/apps/Sync/main.cpp
index ee1dcc5c9a..cbad5abcfb 100644
--- a/apps/Sync/main.cpp
+++ b/apps/Sync/main.cpp
@@ -36,74 +36,13 @@
 #include <ghoul/logging/logmanager.h>
 #include <ghoul/logging/consolelog.h>
 
-// #include <iostream>
-// #include <string>
-// #include <ghoul/glm.h>
-
-// #include <ghoul/opengl/ghoul_gl.h>
-// #include <ghoul/io/texture/texturereader.h>
-// #include <ghoul/io/texture/texturereaderdevil.h>
-// #include <ghoul/io/texture/texturereaderfreeimage.h>
-// #include <ghoul/filesystem/directory.h>
-// #include <ghoul/cmdparser/commandlineparser.h>
-// #include <ghoul/cmdparser/singlecommand.h>
-
-// #include <openspace/scripting/scriptengine.h>
-// #include <openspace/engine/openspaceengine.h>
-// #include <openspace/engine/configurationmanager.h>
-// #include <openspace/util/task.h>
-
-namespace {
-    constexpr const char* ConfigurationFile = "openspace.cfg";
-    constexpr const char* _loggerCat = "Sync";
-}
-
 int main(int argc, char** argv) {
     using namespace openspace;
 
-//    ghoul::initialize();
-//
-//    ghoul::logging::LogManager::initialize(
-//        ghoul::logging::LogLevel::Debug,
-//        ghoul::logging::LogManager::ImmediateFlush::Yes
-//    );
-//    LogMgr.addLog(std::make_unique<ghoul::logging::ConsoleLog>());
-//
-//    LDEBUG("Initialize FileSystem");
-//
-//    ghoul::filesystem::Directory launchDirectory = FileSys.currentDirectory();
-//
-//#ifdef __APPLE__
-//    ghoul::filesystem::File app(argv[0]);
-//    std::string dirName = app.directoryName();
-//    LINFO("Setting starting directory to '" << dirName << "'");
-//    FileSys.setCurrentDirectory(dirName);
-//#endif
-
-    // initTextureReaders();
-
     std::vector<std::string> unusedStringlist;
     bool unusedBool;
     OpenSpaceEngine::create(argc, argv, nullptr, unusedStringlist, unusedBool);
 
-    /*openspace::ConfigurationManager configuration;
-    std::string configurationFile = configuration.findConfiguration(ConfigurationFile);
-    configuration.loadFromFile(configurationFile);
-
-    ghoul::Dictionary moduleConfigurations;
-    if (configuration.hasKeyAndValue<ghoul::Dictionary>(
-        ConfigurationManager::KeyModuleConfigurations))
-    {
-        configuration.getValue<ghoul::Dictionary>(
-            ConfigurationManager::KeyModuleConfigurations,
-            moduleConfigurations
-        );
-    }*/
-
-    //ModuleEngine moduleEngine;
-    //moduleEngine.initialize(moduleConfigurations);
-    //LINFO("Initialization done.");
-
     TaskLoader taskLoader;
     std::vector<std::unique_ptr<Task>> tasks = taskLoader.tasksFromFile(
         absPath("${TASKS}/full_sync.task")
@@ -111,15 +50,15 @@ int main(int argc, char** argv) {
 
     for (size_t i = 0; i < tasks.size(); i++) {
         Task& task = *tasks[i].get();
-        LINFO(
+        LINFOC(
+            "Sync",
             "Synchronizing scene " << (i + 1) << " out of " <<
-            tasks.size() << ": " << task.description()
+                tasks.size() << ": " << task.description()
         );
         ProgressBar progressBar(100);
-        auto onProgress = [&progressBar](float progress) {
+        task.perform([&progressBar](float progress) {
             progressBar.print(static_cast<int>(progress * 100.f));
-        };
-        task.perform(onProgress);
+        });
     }
     std::cout << "Done synchronizing." << std::endl;
 
diff --git a/ext/sgct b/ext/sgct
index e1228d8be5..f6c486238d 160000
--- a/ext/sgct
+++ b/ext/sgct
@@ -1 +1 @@
-Subproject commit e1228d8be50065bba0ad86905f3727ab7eb26ff2
+Subproject commit f6c486238d16ae937d51593e502b4922959353b8
diff --git a/include/openspace/rendering/deferredcasterlistener.h b/include/openspace/rendering/deferredcasterlistener.h
index 9e3a7a3ffd..bea9374f1e 100644
--- a/include/openspace/rendering/deferredcasterlistener.h
+++ b/include/openspace/rendering/deferredcasterlistener.h
@@ -34,6 +34,7 @@ class Deferredcaster;
 class DeferredcasterListener {
 public:
     using isAttached = ghoul::Boolean;
+    virtual ~DeferredcasterListener() = default;
 
     virtual void deferredcastersChanged(Deferredcaster& deferredcaster,
         isAttached isAttached) = 0;
diff --git a/modules/atmosphere/rendering/atmospheredeferredcaster.cpp b/modules/atmosphere/rendering/atmospheredeferredcaster.cpp
index dbc26d62f9..89f9c86e84 100644
--- a/modules/atmosphere/rendering/atmospheredeferredcaster.cpp
+++ b/modules/atmosphere/rendering/atmospheredeferredcaster.cpp
@@ -83,7 +83,9 @@
 #include <sstream>
 #include <fstream>
 
+#ifdef WIN32
 #define _USE_MATH_DEFINES
+#endif // WIN32
 #include <math.h>
 
 
@@ -182,7 +184,7 @@ void AtmosphereDeferredcaster::deinitialize() {
 }
 
 void AtmosphereDeferredcaster::preRaycast(const RenderData& renderData,
-                                          const DeferredcastData& deferredData,
+                                          const DeferredcastData&,
                                           ghoul::opengl::ProgramObject& program)
 {
     // Atmosphere Frustum Culling
@@ -418,9 +420,9 @@ void AtmosphereDeferredcaster::preRaycast(const RenderData& renderData,
     program.setUniform("inscatterTexture", _inScatteringTableTextureUnit);
 }
 
-void AtmosphereDeferredcaster::postRaycast(const RenderData& renderData,
-                                           const DeferredcastData& deferredData,
-                                           ghoul::opengl::ProgramObject& program)
+void AtmosphereDeferredcaster::postRaycast(const RenderData&,
+                                           const DeferredcastData&,
+                                           ghoul::opengl::ProgramObject&)
 {
     // Deactivate the texture units
     _transmittanceTableTextureUnit.deactivate();
diff --git a/modules/atmosphere/rendering/renderableatmosphere.cpp b/modules/atmosphere/rendering/renderableatmosphere.cpp
index de20bc9c32..ec83ead7b6 100644
--- a/modules/atmosphere/rendering/renderableatmosphere.cpp
+++ b/modules/atmosphere/rendering/renderableatmosphere.cpp
@@ -52,7 +52,9 @@
 #include <memory>
 #include <fstream>
 
+#ifdef WIN32
 #define _USE_MATH_DEFINES
+#endif // WIN32
 #include <math.h>
 
 namespace {
diff --git a/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp b/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
index f1242c879b..bba1213749 100644
--- a/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
+++ b/modules/digitaluniverse/rendering/renderablebillboardscloud.cpp
@@ -397,8 +397,8 @@ RenderableBillboardsCloud::RenderableBillboardsCloud(const ghoul::Dictionary& di
     , _labelFile("")
     , _colorOptionString("")
     , _unit(Parsec)
-    , _transformationMatrix(glm::dmat4(1.0))
     , _nValuesPerAstronomicalObject(0)
+    , _transformationMatrix(glm::dmat4(1.0))
     , _vao(0)
     , _vbo(0)
     , _polygonVao(0)
@@ -483,7 +483,7 @@ RenderableBillboardsCloud::RenderableBillboardsCloud(const ghoul::Dictionary& di
             ghoul::Dictionary colorOptionDataDic = dictionary.value<ghoul::Dictionary>(
                 ColorOptionInfo.identifier
                 );
-            for (int i = 0; i < colorOptionDataDic.size(); ++i) {
+            for (int i = 0; i < static_cast<int>(colorOptionDataDic.size()); ++i) {
                 std::string colorMapInUseName(
                     colorOptionDataDic.value<std::string>(std::to_string(i + 1)));
                 _colorOption.addOption(i, colorMapInUseName);
@@ -499,12 +499,12 @@ RenderableBillboardsCloud::RenderableBillboardsCloud(const ghoul::Dictionary& di
         addProperty(_colorOption);
 
         if (dictionary.hasKey(ColorRangeInfo.identifier)) {
-            ghoul::Dictionary rangeDataDic = dictionary.value<ghoul::Dictionary>(
+            ghoul::Dictionary rangeDataDict = dictionary.value<ghoul::Dictionary>(
                 ColorRangeInfo.identifier
-                );
-            for (int i = 0; i < rangeDataDic.size(); ++i) {
+            );
+            for (size_t i = 0; i < rangeDataDict.size(); ++i) {
                 _colorRangeData.push_back(
-                    rangeDataDic.value<glm::vec2>(std::to_string(i+1)));
+                    rangeDataDict.value<glm::vec2>(std::to_string(i + 1)));
             }
         }
 
@@ -618,7 +618,7 @@ void RenderableBillboardsCloud::initialize() {
     if (!_colorOptionString.empty()) {
         // Following DU behavior here. The last colormap variable
         // entry is the one selected by default.
-        _colorOption.setValue(_colorRangeData.size() - 1);
+        _colorOption.setValue(static_cast<int>(_colorRangeData.size() - 1));
     }
 }
 
@@ -913,7 +913,7 @@ void RenderableBillboardsCloud::render(const RenderData& data, RendererTasks&) {
         glm::scale(glm::dmat4(1.0), glm::dvec3(data.modelTransform.scale));
 
     glm::dmat4 modelViewMatrix = data.camera.combinedViewMatrix() * modelMatrix;
-    glm::mat4 viewMatrix = data.camera.viewMatrix();
+    // glm::mat4 viewMatrix = data.camera.viewMatrix();
     glm::mat4 projectionMatrix = data.camera.projectionMatrix();
 
     glm::dmat4 modelViewProjectionMatrix = glm::dmat4(projectionMatrix) *
@@ -1268,7 +1268,7 @@ bool RenderableBillboardsCloud::readColorMapFile() {
     // (signaled by the keywords 'datavar', 'texturevar', and 'texture')
     std::string line = "";
     while (true) {
-        std::streampos position = file.tellg();
+        // std::streampos position = file.tellg();
         std::getline(file, line);
 
         if (line[0] == '#' || line.empty()) {
@@ -1287,12 +1287,12 @@ bool RenderableBillboardsCloud::readColorMapFile() {
         }
     }
 
-    for (auto i = 0; i < numberOfColors; ++i) {
+    for (size_t i = 0; i < numberOfColors; ++i) {
         std::getline(file, line);
         std::stringstream str(line);
 
         glm::vec4 color;
-        for (auto j = 0; j < 4; ++j) {
+        for (int j = 0; j < 4; ++j) {
             str >> color[j];
         }
 
@@ -1481,7 +1481,7 @@ bool RenderableBillboardsCloud::saveCachedFile(const std::string& file) const {
                     reinterpret_cast<const char*>(&keySize),
                     sizeof(int32_t)
                 );
-                for (int c = 0; c < pair.first.size(); ++c) {
+                for (size_t c = 0; c < pair.first.size(); ++c) {
                     int32_t keyChar = static_cast<int32_t>(pair.first[c]);
                     fileStream.write(
                         reinterpret_cast<const char*>(&keyChar),
@@ -1520,7 +1520,7 @@ void RenderableBillboardsCloud::createDataSlice() {
         float colorMapBinSize = (currentColorRange.y - currentColorRange.x) /
                                 static_cast<float>(_colorMapData.size());
         float bin = colorMapBinSize;
-        for (int i = 0; i < _colorMapData.size(); ++i) {
+        for (size_t i = 0; i < _colorMapData.size(); ++i) {
             colorBins.push_back(bin);
             bin += colorMapBinSize;
         }
@@ -1546,14 +1546,17 @@ void RenderableBillboardsCloud::createDataSlice() {
             // is the outliers color.
             glm::vec4 itemColor;
             float variableColor = _fullData[i + 3 + colorMapInUse];
-            int c = colorBins.size()-1;
+            int c = static_cast<int>(colorBins.size() - 1);
             while (variableColor < colorBins[c]) {
                 --c;
                 if (c == 0)
                     break;
             }
 
-            int colorIndex = c == colorBins.size() - 1 ? 0 : c + 1;
+            int colorIndex =
+                c == static_cast<int>(colorBins.size() - 1) ?
+                0 :
+                c + 1;
 
             for (auto j = 0; j < 4; ++j) {
                 _slicedData.push_back(_colorMapData[colorIndex][j]);
diff --git a/modules/digitaluniverse/rendering/renderableplanescloud.cpp b/modules/digitaluniverse/rendering/renderableplanescloud.cpp
index 4bbaf570b7..0349a12090 100644
--- a/modules/digitaluniverse/rendering/renderableplanescloud.cpp
+++ b/modules/digitaluniverse/rendering/renderableplanescloud.cpp
@@ -1264,8 +1264,7 @@ void RenderablePlanesCloud::createPlanes() {
     if (_dataIsDirty && _hasSpeckFile) {
         LDEBUG("Creating planes");
         float maxSize = 0.0f;
-        int planeNumber = 0;
-        for (int p = 0; p < _fullData.size(); p += _nValuesPerAstronomicalObject) {
+        for (size_t p = 0; p < _fullData.size(); p += _nValuesPerAstronomicalObject) {
             glm::vec4 transformedPos = glm::vec4(_transformationMatrix *
                 glm::dvec4(_fullData[p + 0], _fullData[p + 1], _fullData[p + 2], 1.0));
 
diff --git a/modules/digitaluniverse/rendering/renderablepoints.cpp b/modules/digitaluniverse/rendering/renderablepoints.cpp
index 46967639cc..28c7a42652 100644
--- a/modules/digitaluniverse/rendering/renderablepoints.cpp
+++ b/modules/digitaluniverse/rendering/renderablepoints.cpp
@@ -381,7 +381,7 @@ namespace openspace {
                 const size_t nAstronomicalObjects = _fullData.size() /
                                                             _nValuesPerAstronomicalObject;
                 const size_t nValues = _slicedData.size() / nAstronomicalObjects;
-                GLsizei stride = static_cast<GLsizei>(sizeof(double) * nValues);
+                // GLsizei stride = static_cast<GLsizei>(sizeof(double) * nValues);
 
                 glEnableVertexAttribArray(positionAttrib);
                 glVertexAttribLPointer(
@@ -572,7 +572,7 @@ namespace openspace {
         // (signaled by the keywords 'datavar', 'texturevar', and 'texture')
         std::string line = "";
         while (true) {
-            std::streampos position = file.tellg();
+            // std::streampos position = file.tellg();
             std::getline(file, line);
 
             if (line[0] == '#' || line.empty()) {
@@ -591,12 +591,12 @@ namespace openspace {
             }
         }
 
-        for (auto i = 0; i < numberOfColors; ++i) {
+        for (size_t i = 0; i < numberOfColors; ++i) {
             std::getline(file, line);
             std::stringstream str(line);
 
             glm::vec4 color;
-            for (auto j = 0; j < 4; ++j) {
+            for (size_t j = 0; j < 4; ++j) {
                 str >> color[j];
             }
 
@@ -724,7 +724,10 @@ namespace openspace {
                 }
             }
 
-            colorIndex = (colorIndex == (_colorMapData.size() - 1)) ? 0 : colorIndex + 1;
+            colorIndex =
+                (colorIndex == static_cast<int>(_colorMapData.size() - 1)) ?
+                0 :
+                colorIndex + 1;
         }
     }
 
diff --git a/modules/globebrowsing/rendering/chunkrenderer.cpp b/modules/globebrowsing/rendering/chunkrenderer.cpp
index 5d51f4c4f5..ebde490d28 100644
--- a/modules/globebrowsing/rendering/chunkrenderer.cpp
+++ b/modules/globebrowsing/rendering/chunkrenderer.cpp
@@ -149,11 +149,11 @@ void ChunkRenderer::calculateEclipseShadows(const Chunk& chunk,
                 lt
             );
             casterPos *= KM_TO_M; // converting to meters
-            psc caster_pos = PowerScaledCoordinate::CreatePowerScaledCoordinate(
-                casterPos.x,
-                casterPos.y,
-                casterPos.z
-            );
+            // psc caster_pos = PowerScaledCoordinate::CreatePowerScaledCoordinate(
+            //     casterPos.x,
+            //     casterPos.y,
+            //     casterPos.z
+            // );
 
 
             // First we determine if the caster is shadowing the current planet (all
diff --git a/modules/space/rendering/renderableplanet.cpp b/modules/space/rendering/renderableplanet.cpp
index 92167452c4..0f4682e3b0 100644
--- a/modules/space/rendering/renderableplanet.cpp
+++ b/modules/space/rendering/renderableplanet.cpp
@@ -45,7 +45,9 @@
 #include <memory>
 #include <fstream>
 
+#ifdef WIN32
 #define _USE_MATH_DEFINES
+#endif // WIN32
 #include <math.h>
 
 namespace {
@@ -438,7 +440,7 @@ glm::dmat4 RenderablePlanet::computeModelTransformMatrix(
     return modelTransform = modelTransform * rot * roty /** rotProp*/;
 }
 
-void RenderablePlanet::render(const RenderData& data, RendererTasks& renderTask) {
+void RenderablePlanet::render(const RenderData& data, RendererTasks&) {
     // activate shader
     _programObject->activate();
 
diff --git a/modules/space/rendering/renderablestars.cpp b/modules/space/rendering/renderablestars.cpp
index aa4a29b959..83cd781a02 100644
--- a/modules/space/rendering/renderablestars.cpp
+++ b/modules/space/rendering/renderablestars.cpp
@@ -646,7 +646,7 @@ bool RenderableStars::readSpeckFile() {
             str >> values[i];
         }
         bool nullArray = true;
-        for (int i = 0; i < values.size(); ++i) {
+        for (size_t i = 0; i < values.size(); ++i) {
             if (values[i] != 0.0) {
                 nullArray = false;
                 break;
diff --git a/src/engine/downloadmanager.cpp b/src/engine/downloadmanager.cpp
index 4cbc0bec05..156fc277eb 100644
--- a/src/engine/downloadmanager.cpp
+++ b/src/engine/downloadmanager.cpp
@@ -51,10 +51,6 @@
 namespace {
     constexpr const char* _loggerCat = "DownloadManager";
 
-    constexpr const char* RequestIdentifier = "identifier";
-    constexpr const char* RequestFileVersion = "file_version";
-    constexpr const char* RequestApplicationVersion = "application_version";
-
     struct ProgressInformation {
         std::shared_ptr<openspace::DownloadManager::FileFuture> future;
         std::chrono::system_clock::time_point startTime;
diff --git a/src/engine/openspaceengine.cpp b/src/engine/openspaceengine.cpp
index ebca9b9307..10ac2bc3c5 100644
--- a/src/engine/openspaceengine.cpp
+++ b/src/engine/openspaceengine.cpp
@@ -111,11 +111,9 @@ namespace {
     constexpr const char* SgctConfigArgumentCommand = "-config";
 
     constexpr const int CacheVersion = 1;
-    constexpr const int DownloadVersion = 1;
 
     const glm::ivec3 FontAtlasSize{ 1536, 1536, 1 };
 
-
     struct {
         std::string configurationName;
         std::string sgctConfigurationName;
@@ -707,7 +705,7 @@ void OpenSpaceEngine::loadSingleAsset(const std::string& assetPath) {
             }
         }
     }
-    _loadingScreen->setItemNumber(resourceSyncs.size());
+    _loadingScreen->setItemNumber(static_cast<int>(resourceSyncs.size()));
 
     bool loading = true;
     while (loading) {
diff --git a/src/engine/settingsengine.cpp b/src/engine/settingsengine.cpp
index ffceb8125a..1b4f20e891 100644
--- a/src/engine/settingsengine.cpp
+++ b/src/engine/settingsengine.cpp
@@ -73,7 +73,7 @@ void SettingsEngine::initialize() {
 
     // Set interaction to change ConfigurationManager and schedule the load
     _scenes.onChange([this, nScenes, sceneDir]() {
-        if (_scenes == nScenes) {
+        if (_scenes == static_cast<int>(nScenes)) {
             OsEng.scheduleLoadSingleAsset("");
         } else {
             std::string sceneFile = _scenes.getDescriptionByValue(_scenes);
diff --git a/src/rendering/framebufferrenderer.cpp b/src/rendering/framebufferrenderer.cpp
index a582dc4273..46201c9ce1 100644
--- a/src/rendering/framebufferrenderer.cpp
+++ b/src/rendering/framebufferrenderer.cpp
@@ -1266,9 +1266,10 @@ void saveTextureToPPMFile(const GLenum color_buffer_attachment,
 
     ppmFile.open(fileName.c_str(), std::fstream::out);
     if (ppmFile.is_open()) {
-        unsigned char * pixels = new unsigned char[width*height * 3];
-        for (int t = 0; t < width*height * 3; ++t)
+        unsigned char* pixels = new unsigned char[width*height * 3];
+        for (int t = 0; t < width*height * 3; ++t) {
             pixels[t] = 255;
+        }
 
         if (color_buffer_attachment != GL_DEPTH_ATTACHMENT) {
             glReadBuffer(color_buffer_attachment);
@@ -1295,9 +1296,9 @@ void saveTextureToPPMFile(const GLenum color_buffer_attachment,
         int k = 0;
         for (int i = 0; i < width; i++) {
             for (int j = 0; j < height; j++) {
-                ppmFile << (unsigned int)pixels[k] << " "
-                        << (unsigned int)pixels[k + 1] << " "
-                        << (unsigned int)pixels[k + 2] << " ";
+                ppmFile << static_cast<unsigned int>(pixels[k]) << " "
+                        << static_cast<unsigned int>(pixels[k + 1]) << " "
+                        << static_cast<unsigned int>(pixels[k + 2]) << " ";
                 k += 3;
             }
             ppmFile << std::endl;
diff --git a/src/rendering/renderengine.cpp b/src/rendering/renderengine.cpp
index ecaa9b3294..ae2cd6c9e3 100644
--- a/src/rendering/renderengine.cpp
+++ b/src/rendering/renderengine.cpp
@@ -239,10 +239,10 @@ RenderEngine::RenderEngine()
     , _fadeDuration(2.f)
     , _currentFadeTime(0.f)
     , _fadeDirection(0)
+    , _nAaSamples(AaSamplesInfo, 4, 1, 16)
     , _hdrExposure(HDRExposureInfo, 0.4f, 0.01f, 10.0f)
     , _hdrBackground(BackgroundExposureInfo, 2.8f, 0.01f, 10.0f)
     , _gamma(GammaInfo, 2.2f, 0.01f, 10.0f)
-    , _nAaSamples(AaSamplesInfo, 4, 1, 16)
     , _frameNumber(0)
 {
     _doPerformanceMeasurements.onChange([this](){
diff --git a/src/scripting/scriptengine.cpp b/src/scripting/scriptengine.cpp
index 1b064225ad..b407ccd776 100644
--- a/src/scripting/scriptengine.cpp
+++ b/src/scripting/scriptengine.cpp
@@ -274,7 +274,7 @@ void ScriptEngine::addLibraryFunctions(lua_State* state, LuaLibrary& library,
         for (void* d : p.userdata) {
             lua_pushlightuserdata(state, d);
         }
-        lua_pushcclosure(state, p.function, p.userdata.size());
+        lua_pushcclosure(state, p.function, static_cast<int>(p.userdata.size()));
         lua_settable(state, TableOffset);
     }