diff --git a/src/app/GUI/Expressions/expressiondialog.cpp b/src/app/GUI/Expressions/expressiondialog.cpp
index cbb78a13c..c71644b6c 100755
--- a/src/app/GUI/Expressions/expressiondialog.cpp
+++ b/src/app/GUI/Expressions/expressiondialog.cpp
@@ -462,7 +462,11 @@ ExpressionDialog::ExpressionDialog(QrealAnimator* const target,
     tabGroup->addButton(mBindingsButton, 0);
     tabGroup->addButton(mDefinitionsButon, 1);
     tabGroup->setExclusive(true);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
+    connect(tabGroup, qOverload<int, bool>(&QButtonGroup::idToggled),
+#else
     connect(tabGroup, qOverload<int, bool>(&QButtonGroup::buttonToggled),
+#endif
             this, [this](const int id, const bool checked) {
         if(checked) setCurrentTabId(id);
     });
diff --git a/src/app/GUI/flowlayout.cpp b/src/app/GUI/flowlayout.cpp
index e493c33b6..7750c80ea 100755
--- a/src/app/GUI/flowlayout.cpp
+++ b/src/app/GUI/flowlayout.cpp
@@ -82,7 +82,7 @@ QLayoutItem *FlowLayout::takeAt(int index) {
 }
 
 Qt::Orientations FlowLayout::expandingDirections() const {
-    return 0;
+    return Qt::Horizontal;
 }
 
 bool FlowLayout::hasHeightForWidth() const {
diff --git a/src/cmake/friction-common.cmake b/src/cmake/friction-common.cmake
index c970e6878..e91a0654d 100644
--- a/src/cmake/friction-common.cmake
+++ b/src/cmake/friction-common.cmake
@@ -26,7 +26,7 @@ set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 if(UNIX)
-    add_compile_options(-Wall -Wextra)
+    add_compile_options(-Wall -Wextra -Wno-unused-private-field -Wno-deprecated-copy-with-user-provided-copy)
     if(APPLE)
         add_compile_options(-frtti)
     endif()
diff --git a/src/core/Animators/complexanimator.cpp b/src/core/Animators/complexanimator.cpp
index e711db16b..465b5f9ab 100755
--- a/src/core/Animators/complexanimator.cpp
+++ b/src/core/Animators/complexanimator.cpp
@@ -331,7 +331,11 @@ void ComplexAnimator::ca_swapChildren(Property * const child1,
                                       Property * const child2) {
     const int id1 = ca_getChildPropertyIndex(child1);
     const int id2 = ca_getChildPropertyIndex(child2);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 13, 0))
+    ca_mChildren.swapItemsAt(id1, id2);
+#else
     ca_mChildren.swap(id1, id2);
+#endif
     prp_afterWholeInfluenceRangeChanged();
     emit ca_childMoved(child1);
     emit ca_childMoved(child2);
diff --git a/src/core/Private/Tasks/taskque.cpp b/src/core/Private/Tasks/taskque.cpp
index 9270f0bdf..2baabba19 100755
--- a/src/core/Private/Tasks/taskque.cpp
+++ b/src/core/Private/Tasks/taskque.cpp
@@ -55,6 +55,7 @@ void TaskQue::addTask(const stdsptr<eTask> &task) {
                 case HardwareSupport::cpuOnly:
                     mCpuOnly << task;
                     break;
+            default:;
             }
             break;
         case AccPreference::gpuSoftPreference:
@@ -69,6 +70,7 @@ void TaskQue::addTask(const stdsptr<eTask> &task) {
                 case HardwareSupport::cpuOnly:
                     mCpuOnly << task;
                     break;
+            default:;
             }
             break;
         case AccPreference::defaultPreference:
@@ -85,6 +87,7 @@ void TaskQue::addTask(const stdsptr<eTask> &task) {
                 case HardwareSupport::cpuOnly:
                     mCpuOnly << task;
                     break;
+            default:;
             }
             break;
         case AccPreference::cpuSoftPreference:
@@ -99,6 +102,7 @@ void TaskQue::addTask(const stdsptr<eTask> &task) {
                 case HardwareSupport::cpuOnly:
                     mCpuOnly << task;
                     break;
+            default:;
             }
             break;
         case AccPreference::cpuStrongPreference:
@@ -111,6 +115,7 @@ void TaskQue::addTask(const stdsptr<eTask> &task) {
                 case HardwareSupport::cpuOnly:
                     mCpuOnly << task;
                     break;
+            default:;
             }
             break;
     }
diff --git a/src/core/Segments/cubiclist.cpp b/src/core/Segments/cubiclist.cpp
index 27ab1cc48..24e904821 100755
--- a/src/core/Segments/cubiclist.cpp
+++ b/src/core/Segments/cubiclist.cpp
@@ -336,6 +336,16 @@ int cubicBezierLine(const qCubicSegment2D& seg,
                     QList<QPointF>& result) {
     const QRectF segBB = seg.ptsBoundingRect();
     if(segBB.contains(line.p1()) || segBB.contains(line.p2())) {
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    } else if(line.intersects(QLineF(segBB.topLeft(), segBB.bottomLeft()),
+                              nullptr) == QLineF::BoundedIntersection) {
+    } else if(line.intersects(QLineF(segBB.topLeft(), segBB.topRight()),
+                              nullptr) == QLineF::BoundedIntersection) {
+    } else if(line.intersects(QLineF(segBB.topRight(), segBB.bottomRight()),
+                              nullptr) == QLineF::BoundedIntersection) {
+    } else if(line.intersects(QLineF(segBB.bottomRight(), segBB.bottomLeft()),
+                              nullptr) == QLineF::BoundedIntersection) {
+#else
     } else if(line.intersect(QLineF(segBB.topLeft(), segBB.bottomLeft()),
                              nullptr) == QLineF::BoundedIntersection) {
     } else if(line.intersect(QLineF(segBB.topLeft(), segBB.topRight()),
@@ -344,6 +354,7 @@ int cubicBezierLine(const qCubicSegment2D& seg,
                              nullptr) == QLineF::BoundedIntersection) {
     } else if(line.intersect(QLineF(segBB.bottomRight(), segBB.bottomLeft()),
                              nullptr) == QLineF::BoundedIntersection) {
+#endif
     } else return 0;
 
     const qreal lX1 = line.x1();