gnuradio.pkgs: init

- Write a `mkDerivation` and `mkDerivationWith` function for gnuradio,
  like qt5.
- qradiolink, gqrx: Use gnuradio's callPackage and mkDerivation.
- Use gnuradio.callPackage to define all gnuradio.pkgs.
- Move all gnuradio packages expressions to pkgs/development/gnuradio-modules/ -
  modeled after Python's.
- Add more paths to gnuradio's wrapper - add the extra packages as
  python modules, and add their executables with proper env vars
  wrapping.

Co-authored-by: Frederik Rietdijk <fridh@fridh.nl>

pkgs/development/gnuradio-modules/osmosdr/default.nix

@@ -0,0 +1,84 @@
+{ lib
+, mkDerivation
+, fetchgit
+, gnuradio
+, cmake
+, pkg-config
+, log4cpp
+, mpir
+, boost
+, gmp
+, fftwFloat
+, python
+, swig
+, uhd
+, icu
+, airspy
+, hackrf
+, libbladeRF
+, rtl-sdr
+, soapysdr-with-plugins
+}:
+
+let
+  version = {
+    "3.7" = "0.1.5";
+    "3.8" = "0.2.2";
+  }.${gnuradio.versionAttr.major};
+  src = fetchgit {
+    url = "git://git.osmocom.org/gr-osmosdr";
+    rev = "v${version}";
+    sha256 = {
+      "3.7" = "0bf9bnc1c3c4yqqqgmg3nhygj6rcfmyk6pybi27f7461d2cw1drv";
+      "3.8" = "HT6xlN6cJAnvF+s1g2I1uENhBJJizdADlLXeSD0rEqs=";
+    }.${gnuradio.versionAttr.major};
+  };
+in mkDerivation {
+  pname = "gr-osmosdr";
+  inherit version src;
+  disabledForGRafter = "3.9";
+
+  buildInputs = [
+    log4cpp
+    mpir
+    boost
+    fftwFloat
+    gmp
+    icu
+    airspy
+    hackrf
+    libbladeRF
+    rtl-sdr
+    soapysdr-with-plugins
+  ] ++ lib.optional (gnuradio.hasFeature "gr-uhd" gnuradio.features) [
+    uhd
+  ];
+  cmakeFlags = [
+    (if (gnuradio.hasFeature "python-support" gnuradio.features) then
+      "-DENABLE_PYTHON=ON"
+    else
+      "-DENABLE_PYTHON=OFF"
+    )
+  ];
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    swig
+  ] ++ lib.optionals (gnuradio.hasFeature "python-support" gnuradio.features) [
+      (if (gnuradio.versionAttr.major == "3.7") then
+        python.pkgs.cheetah
+      else
+        python.pkgs.Mako
+      )
+      python
+    ]
+  ;
+
+  meta = with lib; {
+    description = "Gnuradio block for OsmoSDR and rtl-sdr";
+    homepage = "https://sdr.osmocom.org/trac/wiki/GrOsmoSDR";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ bjornfor ];
+    platforms = platforms.unix;
+  };
+}