jackmp, wxPython.
There is also no qmake (for Qt) nor is jack_connect included with jack and jack_0.116.2 source fails to build, jackmp uses waf but that will only build x86 packages.
The SDR apps available are sdr-core and sdr-shell, but jack_connect is required to make it work.
Using Narcissus on a C3 board.
Regards
Sid.