Проблема с cmake и пакетом libccext2

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/etherlab ../pdserv-1.1.0
-- Mercurial was not found.
-- checking for module 'libccext2'
--   package 'libccext2' not found
CMake Error at /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:283 (message):
  A required package was not found
Call Stack (most recent call first):
  /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:337 (_pkg_check_modules_internal)
  CMakeLists.txt:116 (PKG_CHECK_MODULES)


-- Configuring incomplete, errors occurred!
See also "/usr/local/etherlab/src/pdserv-1.1.0-build/CMakeFiles/CMakeOutput.log".

Я уже пробовал

sudo apt-get install libccext2

, но он не работает. Я получаю

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libccext2

Как я могу исправить эту проблему? Спасибо.