Having both *-wrapper and *-full attribute names is rather confusing
(what's the difference?). And further, both packages are named
gnuradio-with-packages:
$ nix-env -f. -qaP ".*gnuradio.*"
gnuradio gnuradio-3.7.7.1
gnuradio-osmosdr gnuradio-osmosdr-0.1.4
gnuradio-full gnuradio-with-packages-3.7.7.1
gnuradio-wrapper gnuradio-with-packages-3.7.7.1
Get rid of *-wrapper and rename *-full to *-with-packages, to align it
with the package name.
Now:
$ nix-env -f. -qaP ".*gnuradio.*"
gnuradio gnuradio-3.7.7.1
gnuradio-osmosdr gnuradio-osmosdr-0.1.4
gnuradio-with-packages gnuradio-with-packages-3.7.7.1
And you can customize the *-with-packages variant like this:
gnuradio-with-packages.override { extraPackages = [...]; }