Index: /trunk/src/VBox/ExtPacks/VBoxDTrace/include/VBoxDTraceTypes.h
===================================================================
--- /trunk/src/VBox/ExtPacks/VBoxDTrace/include/VBoxDTraceTypes.h	(revision 54000)
+++ /trunk/src/VBox/ExtPacks/VBoxDTrace/include/VBoxDTraceTypes.h	(revision 54001)
@@ -148,10 +148,12 @@
  * string
  */
-#undef bcopy
-#define bcopy(a_pSrc, a_pDst, a_cb) ((void)memmove(a_pDst, a_pSrc, a_cb))
-#undef bzero
-#define bzero(a_pDst, a_cb)         ((void)memset(a_pDst, 0, a_cb))
-#undef bcmp
-#define bcmp(a_p1, a_p2, a_cb)      (memcmp(a_p1, a_p2, a_cb))
+#ifdef IN_RING0
+# undef bcopy
+# define bcopy(a_pSrc, a_pDst, a_cb) ((void)memmove(a_pDst, a_pSrc, a_cb))
+# undef bzero
+# define bzero(a_pDst, a_cb)        ((void)memset(a_pDst, 0, a_cb))
+# undef bcmp
+# define bcmp(a_p1, a_p2, a_cb)     (memcmp(a_p1, a_p2, a_cb))
+#endif
 #if defined(_MSC_VER) || defined(IN_RING0)
 # define snprintf                   RTStrPrintf