apt-cache show qt4-dev-tools libqt4-dev libspeex1 libspeex-dev libboost-dev libasound2-dev libxevie-dev libxevie1 libssl-dev g++ libspeechd-dev libzeroc-ice-dev libpulse-dev slice2cpp libcap-dev libspeexdsp-dev libprotobuf-dev protobuf-compiler libboost1.37-dev libogg-dev libavahi-compat-libdnssd-dev libsndfile1-dev libg15daemon-client-dev | grep Unable
W: Unable to locate package libxevie-dev W: Unable to locate package libxevie1 W: Unable to locate package libspeechd-dev W: Unable to locate package libzeroc-ice-dev W: Unable to locate package slice2cpp W: Unable to locate package libprotobuf-dev W: Unable to locate package protobuf-compiler W: Unable to locate package libg15daemon-client-dev