- libogg >= 1.3.0 (for experimental conversation tool)
- libnss (certtool binary (for convenient installation of GNS proxy))
- python2.7 = 2.7 (for gnunet-qr, only python 2.7 supported)
-- python2.7-future (for gnunet-qr)
-- python-zbar >= 0.10 (for gnunet-qr)
+- python2.7-future (for gnunet-qr, not optional)
+- python-zbar >= 0.10 (for gnunet-qr, not optional)
- TeX Live >= 2012 (for gnunet-bcd[*])
- texi2mdoc (for automatic mdoc generation [*2])
- libglpk >= 4.45 (for experimental code)