Index: ext/libicpf/src/libicpf/exception.h
===================================================================
diff -u -N -re31dc31ccf2010abee81ddc399d65b57e4803278 -r0185dd929933bee0f578d6ca52aaa605a48c9f89
--- ext/libicpf/src/libicpf/exception.h	(.../exception.h)	(revision e31dc31ccf2010abee81ddc399d65b57e4803278)
+++ ext/libicpf/src/libicpf/exception.h	(.../exception.h)	(revision 0185dd929933bee0f578d6ca52aaa605a48c9f89)
@@ -51,7 +51,7 @@
  *  Exception class thrown by most of the engine functions. Provides user
  *  with an additional formatting and outputting capabilities.
  */
-class LIBICPF_API exception
+class LIBICPF_API exception : public virtual std::exception
 {
 public:
 /** \name Construction/destruction */