'make package' does not find SystemC library

[katang]

I am trying to assemble a package from my app. I builds and executes fine.

All other 'make XX' commands work OK, except that when I attempt 'make package', it throws the error message

CPackDeb: - Generating dependency list
CMake Error at /usr/share/cmake-3.10/Modules/CPackDeb.cmake:709 (message):
  CPackDeb: dpkg-shlibdeps: 'dpkg-shlibdeps: error: cannot find library
  libsystemc.so.2.3 needed by

I do have  libsystemc.so.2.3.3 in my /opt/systemc/lib, and have a libsystemc.so.2.3 to it.

The message comes from

        if(NOT SHLIBDEPS_RESULT EQUAL 0)
          message (FATAL_ERROR "CPackDeb: dpkg-shlibdeps: '${SHLIBDEPS_ERROR}';\n"

Given that during building and running everything works OK (i.e. the library found, I guess that it is in the right place), I have no idea whether it is my dust, or CMake/SystemC?

Maybe CPackDeb is looking for it on some other place?