gcc 3.4 complained about virtual methods without virtual destructor

src/node/packetbb.cc

@@ -908,7 +908,7 @@ PbbPacket::operator!= (const PbbPacket &other) const
 
 /* End PbbPacket class */
 
-PbbMessage::PbbMessage (void)
+PbbMessage::PbbMessage ()
 {
   m_refCount = 1;
   /* Default to IPv4 */
@@ -919,6 +919,10 @@ PbbMessage::PbbMessage (void)
   m_hasSequenceNumber = false;
 }
 
+PbbMessage::~PbbMessage ()
+{
+}
+
 void
 PbbMessage::SetType (uint8_t type)
 {
@@ -1558,6 +1562,14 @@ PbbMessage::operator!= (const PbbMessage &other) const
 
 /* End PbbMessage Class */
 
+PbbMessageIpv4::PbbMessageIpv4 ()
+{
+}
+
+PbbMessageIpv4::~PbbMessageIpv4 ()
+{
+}
+
 PbbAddressLength
 PbbMessageIpv4::GetAddressLength (void) const
 {
@@ -1596,6 +1608,14 @@ PbbMessageIpv4::AddressBlockDeserialize (Buffer::Iterator &start) const
 
 /* End PbbMessageIpv4 Class */
 
+PbbMessageIpv6::PbbMessageIpv6 ()
+{
+}
+
+PbbMessageIpv6::~PbbMessageIpv6 ()
+{
+}
+
 PbbAddressLength
 PbbMessageIpv6::GetAddressLength (void) const
 {
@@ -1639,6 +1659,10 @@ PbbAddressBlock::PbbAddressBlock ()
   m_refCount = 1;
 }
 
+PbbAddressBlock::~PbbAddressBlock ()
+{
+}
+
 /* Manipulating the address block */
 
 PbbAddressBlock::AddressIterator
@@ -2307,6 +2331,14 @@ PbbAddressBlock::HasZeroTail (const uint8_t *tail, uint8_t taillen) const
 
 /* End PbbAddressBlock Class */
 
+PbbAddressBlockIpv4::PbbAddressBlockIpv4 ()
+{
+}
+
+PbbAddressBlockIpv4::~PbbAddressBlockIpv4 ()
+{
+}
+
 uint8_t
 PbbAddressBlockIpv4::GetAddressLength (void) const
 {
@@ -2333,6 +2365,14 @@ PbbAddressBlockIpv4::PrintAddress (std::ostream &os, ConstAddressIterator iter)
 
 /* End PbbAddressBlockIpv4 Class */
 
+PbbAddressBlockIpv6::PbbAddressBlockIpv6 ()
+{
+}
+
+PbbAddressBlockIpv6::~PbbAddressBlockIpv6 ()
+{
+}
+
 uint8_t
 PbbAddressBlockIpv6::GetAddressLength (void) const
 {