diff --git a/filament/backend/include/private/backend/CommandStream.h b/filament/backend/include/private/backend/CommandStream.h
index df1fb78a08..9a528d7401 100644
--- a/filament/backend/include/private/backend/CommandStream.h
+++ b/filament/backend/include/private/backend/CommandStream.h
@@ -205,12 +205,12 @@ public:
 
 // ------------------------------------------------------------------------------------------------
 
-#ifdef NDEBUG
-    #define DEBUG_COMMAND(methodName, params...)
+#if defined(NDEBUG)
+    #define DEBUG_COMMAND(methodName, ...)
 #else
     // For now, simply pass the method name down as a string and throw away the parameters.
     // This is good enough for certain debugging needs and we can improve this later.
-    #define DEBUG_COMMAND(methodName, params...) mDriver->debugCommand(#methodName)
+    #define DEBUG_COMMAND(methodName, ...) mDriver->debugCommand(#methodName)
 #endif
 
 class CommandStream {
diff --git a/filament/backend/src/opengl/OpenGLDriver.h b/filament/backend/src/opengl/OpenGLDriver.h
index 6f80af8b7d..c756654984 100644
--- a/filament/backend/src/opengl/OpenGLDriver.h
+++ b/filament/backend/src/opengl/OpenGLDriver.h
@@ -475,8 +475,8 @@ private:
         } pack;
 
         struct {
-            vec4gli scissor = 0;
-            vec4gli viewport = 0;
+            vec4gli scissor { 0 };
+            vec4gli viewport { 0 };
         } window;
 
         struct {
diff --git a/libs/ibl/src/CubemapIBL.cpp b/libs/ibl/src/CubemapIBL.cpp
index 404bc2819a..ca1038b246 100644
--- a/libs/ibl/src/CubemapIBL.cpp
+++ b/libs/ibl/src/CubemapIBL.cpp
@@ -764,7 +764,7 @@ static float2 DFV(float NoV, float linearRoughness, size_t numSamples) {
             r.y += v * Fc;
         }
     }
-    return r * (4.0 / numSamples);
+    return r * (4.0f / numSamples);
 }
 
 static float2 DFV_Multiscatter(float NoV, float linearRoughness, size_t numSamples) {
@@ -809,7 +809,7 @@ static float2 DFV_Multiscatter(float NoV, float linearRoughness, size_t numSampl
             r.y += v;
         }
     }
-    return r * (4.0 / numSamples);
+    return r * (4.0f / numSamples);
 }
 
 static float UTILS_UNUSED DFV_LazanyiTerm(float NoV, float linearRoughness, size_t numSamples) {
diff --git a/libs/math/dummy.cpp b/libs/math/dummy.cpp
index a4e2d4ba3e..3a6c9c21f3 100644
--- a/libs/math/dummy.cpp
+++ b/libs/math/dummy.cpp
@@ -15,6 +15,8 @@
  */
 
 // Empty symbol used to suppress warnings on Darwin
-__attribute__((visibility("hidden")))
+#if __has_attribute(visibility) 
+    __attribute__((visibility("hidden")))
+#endif
 void e() {
 }
diff --git a/libs/utils/include/utils/StructureOfArrays.h b/libs/utils/include/utils/StructureOfArrays.h
index 61fa958476..44240d72aa 100644
--- a/libs/utils/include/utils/StructureOfArrays.h
+++ b/libs/utils/include/utils/StructureOfArrays.h
@@ -166,7 +166,7 @@ public:
     template<typename CVQualifiedSOAPointer>
     class Iterator {
         friend class StructureOfArraysBase;
-        CVQualifiedSOAPointer UTILS_RESTRICT soa;
+        CVQualifiedSOAPointer soa; // don't use restrict, can have aliases if multiple iterators are created
         size_t index;
 
         Iterator(CVQualifiedSOAPointer soa, size_t index) : soa(soa), index(index) {}
diff --git a/samples/app/FilamentApp.cpp b/samples/app/FilamentApp.cpp
index b2d5c528a6..f12a6977d0 100644
--- a/samples/app/FilamentApp.cpp
+++ b/samples/app/FilamentApp.cpp
@@ -677,7 +677,7 @@ void FilamentApp::Window::configureCamerasForWindow() {
 FilamentApp::CView::CView(Renderer& renderer, std::string name)
         : engine(*renderer.getEngine()), mName(name) {
     view = engine.createView();
-    view->setClearColor({ 0 });
+    view->setClearColor(LinearColorA{ 0 });
     view->setName(name.c_str());
 }
 
diff --git a/samples/app/IcoSphere.cpp b/samples/app/IcoSphere.cpp
index 62e40eb1c7..3cfaa65d81 100644
--- a/samples/app/IcoSphere.cpp
+++ b/samples/app/IcoSphere.cpp
@@ -46,7 +46,7 @@ IcoSphere::Index IcoSphere::vertex_for_edge(
         std::swap(key.first, key.second);
     }
 
-    auto inserted = lookup.insert({ key, vertices.size() });
+    auto inserted = lookup.insert({ key, (Lookup::mapped_type)vertices.size() });
     if (inserted.second) {
         auto edge0 = vertices[first];
         auto edge1 = vertices[second];