diff --git a/libuavcan/include/uavcan/linked_list.hpp b/libuavcan/include/uavcan/linked_list.hpp
index 814eb99388..b2e02d9067 100644
--- a/libuavcan/include/uavcan/linked_list.hpp
+++ b/libuavcan/include/uavcan/linked_list.hpp
@@ -24,6 +24,8 @@ protected:
         : next_(NULL)
     { }
 
+    ~LinkedListNode() { }
+
 public:
     T* getNextListNode() const { return next_; }
 
diff --git a/libuavcan/include/uavcan/marshal/array.hpp b/libuavcan/include/uavcan/marshal/array.hpp
index f0dd196605..80c3a11328 100644
--- a/libuavcan/include/uavcan/marshal/array.hpp
+++ b/libuavcan/include/uavcan/marshal/array.hpp
@@ -151,6 +151,9 @@ private:
     }
     template <typename> void initialize(...) { }
 
+protected:
+    ~ArrayImpl() { }
+
 public:
     typedef typename StorageType<T>::Type ValueType;
     typedef typename Base::SizeType SizeType;
diff --git a/libuavcan/include/uavcan/time.hpp b/libuavcan/include/uavcan/time.hpp
index 2ef79433b3..fe2efe3151 100644
--- a/libuavcan/include/uavcan/time.hpp
+++ b/libuavcan/include/uavcan/time.hpp
@@ -20,13 +20,16 @@ class DurationBase
 {
     int64_t usec_;
 
-public:
+protected:
+    ~DurationBase() { }
+
     DurationBase()
         : usec_(0)
     {
         StaticAssert<(sizeof(D) == 8)>::check();
     }
 
+public:
     static D getInfinite() { return fromUSec(std::numeric_limits<int64_t>::max()); }
 
     static D fromUSec(int64_t us)
@@ -93,7 +96,9 @@ class TimeBase
 {
     uint64_t usec_;
 
-public:
+protected:
+    ~TimeBase() { }
+
     TimeBase()
         : usec_(0)
     {
@@ -101,6 +106,7 @@ public:
         StaticAssert<(sizeof(D) == 8)>::check();
     }
 
+public:
     static T getMax() { return fromUSec(std::numeric_limits<uint64_t>::max()); }
 
     static T fromUSec(uint64_t us)
@@ -256,7 +262,7 @@ std::string TimeBase<T, D>::toString() const
 
 template <typename Stream, typename D>
 UAVCAN_EXPORT
-Stream& operator<<(Stream& s, DurationBase<D> d)
+Stream& operator<<(Stream& s, const DurationBase<D>& d)
 {
     char buf[DurationBase<D>::StringBufSize];
     d.toString(buf);
@@ -266,7 +272,7 @@ Stream& operator<<(Stream& s, DurationBase<D> d)
 
 template <typename Stream, typename T, typename D>
 UAVCAN_EXPORT
-Stream& operator<<(Stream& s, TimeBase<T, D> t)
+Stream& operator<<(Stream& s, const TimeBase<T, D>& t)
 {
     char buf[TimeBase<T, D>::StringBufSize];
     t.toString(buf);
diff --git a/libuavcan/include/uavcan/util/compile_time.hpp b/libuavcan/include/uavcan/util/compile_time.hpp
index d4ad3d0a2e..24777cbf1e 100644
--- a/libuavcan/include/uavcan/util/compile_time.hpp
+++ b/libuavcan/include/uavcan/util/compile_time.hpp
@@ -36,6 +36,7 @@ class UAVCAN_EXPORT Noncopyable
     Noncopyable& operator=(const Noncopyable&);
 protected:
     Noncopyable() { }
+    ~Noncopyable() { }
 };
 
 /**