Error build linphone flexisip server mac os

Question

I am trying to build linphone flexisip server on my local laptop(Mac os)

This is all steps i have done

Install Required Dependencies:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
brew install git cmake

Clone Flexisip Repository:

git clone https://github.com/BelledonneCommunications/flexisip.git

Build Flexisip: Navigate to the Flexisip directory and build the project using CMake.

cd flexisip
mkdir build
cd build
cmake ..
make

Then I have error:

CMake Error at CMakeLists.txt:47 (include):
  include could not find requested file:

    ./linphone-sdk/bctoolbox/cmake/BcToolboxCMakeUtils.cmake


CMake Error at CMakeLists.txt:48 (bc_compute_full_version):
  Unknown CMake command "bc_compute_full_version".