Package generation for Patchbox OS 2020-11-23 almost ok

[f1oat]

I have been able to compile pd-ceammc and all associated externals with my RPi-4 running Patchbox OS .
I am using the following commands:

sudo apt-get install cmake pkg-config libasound2-dev libmodplug-dev      libboost-dev gettext libavahi-compat-libdnssd-dev libsndfile1-dev     libjack-jackd2-dev libfftw3-dev tcllib tklib alsa-utils build-essential     patchelf git libarmadillo-dev libusb-1.0.0-dev libglib2.0-dev libxcb-randr0-dev    libxcb1-dev x11proto-dev lsb-release

sudo aptitude install llvm-9-dev
sudo aptitude install libedit-dev

git clone https://github.com/uliss/pure-data
cd pure-data
git submodule init
git submodule update --init --recursive
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr -DWITH_PORTAUDIO=OFF \
      -DCMAKE_BUILD_TYPE=Release -DWITH_ALSA=ON \
      -DWITH_JACK=ON -DWITH_PORTMIDI=ON ..
make

"make install" is ok and everything is running correctly.
However, "make package" exits with errors:

CPackDeb: - Generating dependency list
CMake Error at /usr/share/cmake-3.16/Modules/Internal/CPack/CPackDeb.cmake:317 (message):
  CPackDeb: dpkg-shlibdeps: 'dpkg-shlibdeps: warning:
  ./usr/lib/pd_ceammc/extra/lyonpotpourri/expflam~.pd_linux contains an
  unresolvable reference to symbol class_domainsignalin: it's probably a
  plugin

....

  dpkg-shlibdeps: error: cannot find library libLTO.so.9 needed by
  ./usr/lib/pd_ceammc/extra/ceammc/lang.faust~.pd_linux (ELF format:
  'elf32-littlearm' abi: '0101002800000000'; RPATH:
  '/usr/lib/pd_ceammc/extra/ceammc')

  dpkg-shlibdeps: error: cannot find library libRemarks.so.9 needed by
  ./usr/lib/pd_ceammc/extra/ceammc/lang.faust~.pd_linux (ELF format:
  'elf32-littlearm' abi: '0101002800000000'; RPATH:
  '/usr/lib/pd_ceammc/extra/ceammc')

...

CPack Error: Error while execution CPackDeb.cmake
CPack Error: Problem compressing the directory
CPack Error: Error when generating package: puredata
make: *** [Makefile:140: package] Error 1

These missing libs are present in "/usr/lib/llvm-9/lib/" directory (provided by "llvm-9-dev" package).
Any clue on how to solve this issue?
Thanks.

[uliss]

at this the simple adhoc solution is build without FAUST support.

cmake ... -DWITH_FAUST=OFF ...