$ sudo apt-get install libspeexdsp-dev
$ sudo apt-get install libxcb-composite0-dev

codec2:
instructions: http://www.rowetel.com/blog/?page_id=452

cd /home/src/codec2
svn co https://freetel.svn.sourceforge.net/svnroot/freetel/codec2
cd codec2
mkdir build
cd build
cmake ..
make
sudo make install

# need to relocate several items to locations expected by the build
# this is ugly, and should be fixed...
-- Installing: /usr/local/include/codec2/codec2.h
-- Installing: /usr/local/lib/x86_64-linux-gnu/libcodec2.so.0.3
-- Installing: /usr/local/lib/x86_64-linux-gnu/libcodec2.so

$ sudo cp /usr/local/include/codec2/codec2.h /usr/local/include
$ sudo cp /usr/local/lib/x86_64-linux-gnu/libcodec2.so.0.3 /usr/lib
$ sudo ln -s /usr/lib/libcodec2.so.0.3 /usr/lib/libcodec2.so
$ sudo ldconfig