Нашел инструкцию как собрать deb пакет https://github.com/EionRobb/skype4pidgin/tree/master/skypeweb#skypeweb-plugin-for-pidgin
sudo apt-get install libpurple-dev libjson-glib-dev cmake gcc
git clone git://github.com/EionRobb/skype4pidgin.git
cd skype4pidgin/skypeweb
mkdir build
cd build
cmake ..
cpack
deb@debian:~/skype4pidgin/skypeweb/build$ cmake /home/deb/skype4pidgin/skypeweb/CMakeLists.txt
-- Configuring done
-- Generating done
-- Build files have been written to: /home/deb/skype4pidgin/skypeweb
deb@debian:~/skype4pidgin/skypeweb/build$ cpack -G /home/deb/skype4pidgin/skypeweb/CPackConfig.cmake
CPack Error: CPack project name not specified