dsniff (http://www.freedesktop.org/software/pkgconfig)
libao2 (http://www.freedesktop.org/software/pkgconfig)
libao4 (http://www.freedesktop.org/software/pkgconfig)
libldns (http://www.freedesktop.org/software/pkgconfig)
libvisual-0.4 (http://www.freedesktop.org/software/pkgconfig)
meep-mpi (http://www.freedesktop.org/software/pkgconfig)
meep (http://www.freedesktop.org/software/pkgconfig)
openssl (http://www.freedesktop.org/software/pkgconfig)
silc-client (A new enough version of pkg-config was not found.)