diff --git a/intern/cycles/bvh/bvh.h b/intern/cycles/bvh/bvh.h
index 6b877594422..79e46d6a13c 100644
--- a/intern/cycles/bvh/bvh.h
+++ b/intern/cycles/bvh/bvh.h
@@ -83,6 +83,7 @@ public:
 	vector<Object*> objects;
 
 	static BVH *create(const BVHParams& params, const vector<Object*>& objects);
+	virtual ~BVH() {}
 
 	void build(Progress& progress);
 	void refit(Progress& progress);
diff --git a/intern/cycles/bvh/bvh_node.h b/intern/cycles/bvh/bvh_node.h
index d83c006b93d..f8f0ffecd95 100644
--- a/intern/cycles/bvh/bvh_node.h
+++ b/intern/cycles/bvh/bvh_node.h
@@ -42,6 +42,7 @@ public:
 	{
 	}
 
+	virtual ~BVHNode() {}
 	virtual bool is_leaf() const = 0;
 	virtual int num_children() const = 0;
 	virtual BVHNode *get_child(int i) const = 0;
diff --git a/intern/cycles/device/device_multi.cpp b/intern/cycles/device/device_multi.cpp
index 26c9717233a..e48df93737d 100644
--- a/intern/cycles/device/device_multi.cpp
+++ b/intern/cycles/device/device_multi.cpp
@@ -244,7 +244,7 @@ public:
 		mem.device_pointer = tmp;
 	}
 
-	void draw_pixels(device_memory& rgba, int x, int y, int w, int h, int width, int height)
+	void draw_pixels(device_memory& rgba, int y, int w, int h, int width, int height)
 	{
 		device_ptr tmp = rgba.device_pointer;
 		int i = 0, sub_h = h/devices.size();
diff --git a/intern/cycles/subd/subd_patch.h b/intern/cycles/subd/subd_patch.h
index 8d4b8a1c911..ac2317f4359 100644
--- a/intern/cycles/subd/subd_patch.h
+++ b/intern/cycles/subd/subd_patch.h
@@ -30,6 +30,7 @@ class Mesh;
 
 class Patch {
 public:
+	virtual ~Patch() {}
 	virtual void eval(float3 *P, float3 *dPdu, float3 *dPdv, float u, float v) = 0;
 	virtual bool is_triangle() = 0;
 	virtual BoundBox bound() = 0;
diff --git a/intern/cycles/util/util_vector.h b/intern/cycles/util/util_vector.h
index fb872936e3f..931ad272612 100644
--- a/intern/cycles/util/util_vector.h
+++ b/intern/cycles/util/util_vector.h
@@ -21,6 +21,7 @@
 
 /* Vector */
 
+#include <string.h>
 #include <vector>
 
 CCL_NAMESPACE_BEGIN