Index: /trunk/src/VBox/Storage/VD.cpp
===================================================================
--- /trunk/src/VBox/Storage/VD.cpp	(revision 40990)
+++ /trunk/src/VBox/Storage/VD.cpp	(revision 40991)
@@ -43,4 +43,11 @@
 #include <VBox/vd-plugin.h>
 #include <VBox/vd-cache-plugin.h>
+
+/** Disable dynamic backends on non x86 architectures. This feature
+ * requires the SUPR3 library which is not available there.
+ */
+#if !defined(RT_ARCH_X86) && !defined(RT_ARCH_AMD64)
+# define VBOX_HDD_NO_DYNAMIC_BACKENDS
+#endif
 
 #define VBOXHDDDISK_SIGNATURE 0x6f0e2a7d