diff --git a/code/AssetLib/AC/ACLoader.h b/code/AssetLib/AC/ACLoader.h
index 5167394eb..77de16b8b 100644
--- a/code/AssetLib/AC/ACLoader.h
+++ b/code/AssetLib/AC/ACLoader.h
@@ -116,7 +116,7 @@ public:
             Mask = 0xf,
         };
 
-        inline const uint8_t GetType() const { return (flags & Mask); }
+        inline uint8_t GetType() const { return (flags & Mask); }
     };
 
     // Represents an AC3D object
diff --git a/code/PostProcessing/ComputeUVMappingProcess.cpp b/code/PostProcessing/ComputeUVMappingProcess.cpp
index b722e44f1..8ce3e41c4 100644
--- a/code/PostProcessing/ComputeUVMappingProcess.cpp
+++ b/code/PostProcessing/ComputeUVMappingProcess.cpp
@@ -122,7 +122,7 @@ void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
         const aiFace& face = mesh->mFaces[fidx];
         if (face.mNumIndices < 3) continue; // triangles and polygons only, please
 
-        unsigned int small = face.mNumIndices, large = small;
+        unsigned int smallV = face.mNumIndices, large = smallV;
         bool zero = false, one = false, round_to_zero = false;
 
         // Check whether this face lies on a UV seam. We can just guess,
@@ -133,7 +133,7 @@ void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
         {
             if (out[face.mIndices[n]].x < LOWER_LIMIT)
             {
-                small = n;
+                smallV = n;
 
                 // If we have a U value very close to 0 we can't
                 // round the others to 0, too.
@@ -151,7 +151,7 @@ void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
                     one = true;
             }
         }
-        if (small != face.mNumIndices && large != face.mNumIndices)
+        if (smallV != face.mNumIndices && large != face.mNumIndices)
         {
             for (unsigned int n = 0; n < face.mNumIndices;++n)
             {
diff --git a/contrib/gtest/include/gtest/internal/gtest-internal.h b/contrib/gtest/include/gtest/internal/gtest-internal.h
index ebd1cf615..e66c74841 100644
--- a/contrib/gtest/include/gtest/internal/gtest-internal.h
+++ b/contrib/gtest/include/gtest/internal/gtest-internal.h
@@ -1,4 +1,4 @@
-// Copyright 2005, Google Inc.
+// Copyright 2005, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
diff --git a/contrib/unzip/crypt.c b/contrib/unzip/crypt.c
index c3cc5d991..299ce03d2 100644
--- a/contrib/unzip/crypt.c
+++ b/contrib/unzip/crypt.c
@@ -21,6 +21,10 @@
    NOCRYPT and NOUNCRYPT.
 */
 
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__)
+    #define MICROSOFT_WINDOWS_WINBASE_H_DEFINE_INTERLOCKED_CPLUSPLUS_OVERLOADS 0
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
diff --git a/include/assimp/Exceptional.h b/include/assimp/Exceptional.h
index dab681b23..36d60d63a 100644
--- a/include/assimp/Exceptional.h
+++ b/include/assimp/Exceptional.h
@@ -75,6 +75,10 @@ public:
     template<typename... T>
     explicit DeadlyImportError(T&&... args) :
             DeadlyErrorBase(Assimp::Formatter::format(), std::forward<T>(args)...) {}
+
+#if defined(_MSC_VER) && defined(__clang__)
+    DeadlyImportError(DeadlyImportError& other) = delete;
+#endif
 };
 
 class ASSIMP_API DeadlyExportError : public DeadlyErrorBase {
@@ -83,6 +87,10 @@ public:
     template<typename... T>
     explicit DeadlyExportError(T&&... args) :
             DeadlyErrorBase(Assimp::Formatter::format(), std::forward<T>(args)...) {}
+
+#if defined(_MSC_VER) && defined(__clang__)
+    DeadlyExportError(DeadlyExportError& other) = delete;
+#endif
 };
 
 #ifdef _MSC_VER
diff --git a/include/assimp/metadata.h b/include/assimp/metadata.h
index 2f8421c1c..fdc88be56 100644
--- a/include/assimp/metadata.h
+++ b/include/assimp/metadata.h
@@ -351,7 +351,7 @@ struct aiMetadata {
             *static_cast<T *>(mValues[index].mData) = value;
         } else {
             if (nullptr != mValues[index].mData) {
-                delete mValues[index].mData;
+                delete static_cast<T *>(mValues[index].mData);
                 mValues[index].mData = nullptr;
             }
             mValues[index].mData = new T(value);