+ - XREFERENCE(http://downloads.xiph.org/releases/ao/,
+ libao). Needed to build the ao writer (ESD, PulseAudio,...).
+ Debian package: libao-dev.
+
+ - XREFERENCE(ftp://ftp.gnu.org/pub/gnu/ncurses, curses). Needed
+ for para_gui. Debian package: libncurses-dev.
+
+ - XREFERENCE(http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html,
+ GNU Readline). If this library (libreadline-dev) is installed,
+ para_client, para_audioc and para_play support interactive
+ sessions.
+