Help needed with radio-link failure fix

[Bob]

I'm trying to add handling of radio link failure to the LTE module, following Nicola's suggestions (https://groups.google.com/forum/#!searchin/ns-3-users/RRCConnectionReestablishment/ns-3-users/xShe_Hqy6r4/WhI6E45ThtoJ).

Regardless of how RLF is handled, I am trying right now  to build the signaling from Phy to MAC layer. I did the following:

1. Added 

virtual void NotifyInSync() = 0;

virtual void NotifyOutOfSync() = 0;

to class LteUeCphySapUser.

2. From LteUePhy::GenerateCtrlCqiReport I'm using 

          m_ueCphySapUser->NotifyInSync();

and 

          m_ueCphySapUser->NotifyOutOfSync();

to notify in-sync and out-of-sync.

3. Added

  void DoNotifyInSync();

  void DoNotifyOutOfSync();

to class LteUeRrc and empty body (for now) in the implementation part (.cc file)

I'm getting the following:

In file included from ../src/lte/model/lte-ue-rrc.h:30:0,

                 from ../src/lte/model/lte-ue-rrc.cc:22:

./ns3/lte-ue-cphy-sap.h:340:7: note:   because the following virtual functions are pure within ‘ns3::MemberLteUeCphySapUser<ns3::LteUeRrc>’:

 class MemberLteUeCphySapUser : public LteUeCphySapUser

       ^

./ns3/lte-ue-cphy-sap.h:211:16: note: virtual void ns3::LteUeCphySapUser::NotifyInSync()

   virtual void NotifyInSync() = 0;

                ^

./ns3/lte-ue-cphy-sap.h:216:16: note: virtual void ns3::LteUeCphySapUser::NotifyOutOfSync()

   virtual void NotifyOutOfSync() = 0;

                ^

../src/lte/model/lte-ue-rrc.cc: At global scope:

../src/lte/model/lte-ue-rrc.cc:2836:24: error: no ‘void ns3::LteUeRrc::NotifyInSync()’ member function declared in class ‘ns3::LteUeRrc’

 LteUeRrc::NotifyInSync()

                        ^

../src/lte/model/lte-ue-rrc.cc:2842:27: error: no ‘void ns3::LteUeRrc::NotifyOutOfSync()’ member function declared in class ‘ns3::LteUeRrc’

 LteUeRrc::NotifyOutOfSync()

If I make the two functions NotifyInSync and NotifyOutOfSync non-virtual, the build process goes on for a little bit more, and terminates with this message:

[2223/2377] cxxprogram: build/src/lte/examples/lena-intercell-interference.cc.4.o -> build/src/lte/examples/ns3-dev-lena-intercell-interference-debug

./libns3-dev-lte-debug.so: undefined reference to `ns3::LteUeCphySapUser::NotifyOutOfSync()'

./libns3-dev-lte-debug.so: undefined reference to `ns3::LteUeCphySapUser::NotifyInSync()'

collect2: error: ld returned 1 exit status