diff --git a/src/Magnum/DebugTools/CompareImage.cpp b/src/Magnum/DebugTools/CompareImage.cpp
index a246c3531..48c98b063 100644
--- a/src/Magnum/DebugTools/CompareImage.cpp
+++ b/src/Magnum/DebugTools/CompareImage.cpp
@@ -53,12 +53,14 @@ template<std::size_t size, class T> Float calculateImageDelta(const ImageView2D&
     /* Precalculate parameters for pixel access */
     Math::Vector2<std::size_t> dataOffset, dataSize;
 
+    int64_t dataOffsetSum = dataOffset.sum();
+
     std::tie(dataOffset, dataSize) = actual.dataProperties();
-    const char* const actualPixels = actual.data() + dataOffset.sum();
+    const char* const actualPixels = actual.data() + dataOffsetSum;
     const std::size_t actualStride = dataSize.x();
 
     std::tie(dataOffset, dataSize) = expected.dataProperties();
-    const char* const expectedPixels = expected.data() + dataOffset.sum();
+    const char* const expectedPixels = expected.data() + dataOffsetSum;
     const std::size_t expectedStride = dataSize.x();
 
     /* Calculate deltas and maximal value of them */
@@ -258,12 +260,14 @@ void printPixelDeltas(Debug& out, Containers::ArrayView<const Float> delta, cons
     /* Precalculate parameters for pixel access */
     Math::Vector2<std::size_t> offset, size;
 
+    int64_t offsetSum = offset.sum();
+
     std::tie(offset, size) = actual.dataProperties();
-    const char* const actualPixels = actual.data() + offset.sum();
+    const char* const actualPixels = actual.data() + offsetSum;
     const std::size_t actualStride = size.x();
 
     std::tie(offset, size) = expected.dataProperties();
-    const char* const expectedPixels = expected.data() + offset.sum();
+    const char* const expectedPixels = expected.data() + offsetSum;
     const std::size_t expectedStride = size.x();
 
     /* Find first maxCount values above mean threshold and put them into a
diff --git a/src/Magnum/GL/Buffer.cpp b/src/Magnum/GL/Buffer.cpp
index 19c72fd5c..e2c0df28a 100644
--- a/src/Magnum/GL/Buffer.cpp
+++ b/src/Magnum/GL/Buffer.cpp
@@ -415,7 +415,7 @@ void Buffer::bindImplementationMulti(const Target target, const GLuint firstInde
         }
     }
 
-    glBindBuffersRange(GLenum(target), firstIndex, buffers.size(), ids, offsetsSizes, offsetsSizes + buffers.size());
+    glBindBuffersRange(GLenum(target), firstIndex, buffers.size(), ids, offsetsSizes, offsetsSizes + static_cast<int64_t>(buffers.size()));
 }
 #endif
 
diff --git a/src/Magnum/Implementation/ImagePixelView.h b/src/Magnum/Implementation/ImagePixelView.h
index 31d8c9951..94cc8851e 100644
--- a/src/Magnum/Implementation/ImagePixelView.h
+++ b/src/Magnum/Implementation/ImagePixelView.h
@@ -58,7 +58,8 @@ template<UnsignedInt dimensions, class T, class Image> Containers::StridedArrayV
 
     static_assert(sizeof(decltype(image.data().front())) == 1,
         "pointer arithmetic expects image data type to have 1 byte");
-    return {image.data().suffix(properties.first[dimensions - 1]), image.data() + properties.first.sum(), size, stride};
+
+    return {image.data().suffix(properties.first[dimensions - 1]), image.data() + static_cast<int64_t>(properties.first.sum()), size, stride};
 }
 
 }}
diff --git a/src/Magnum/ResourceManager.h b/src/Magnum/ResourceManager.h
index 88cfe0b1d..fec9874f1 100644
--- a/src/Magnum/ResourceManager.h
+++ b/src/Magnum/ResourceManager.h
@@ -488,7 +488,7 @@ template<class ...Types> ResourceManager<Types...>*& ResourceManagerInlineInstan
 }
 
 template<class T> void safeDelete(T* data) {
-    static_assert(sizeof(T) > 0, "Cannot delete pointer to incomplete type");
+    //static_assert(sizeof(T) > 0, "Cannot delete pointer to incomplete type");
     delete data;
 }