urh: add support for Pluto, soundcards, and optionally USRP

pkgs/applications/radio/urh/default.nix

@@ -1,5 +1,6 @@
-{ stdenv, fetchFromGitHub, python3Packages
-, hackrf, rtl-sdr, airspy, limesuite }:
+{ stdenv, lib, fetchFromGitHub, python3Packages
+, hackrf, rtl-sdr, airspy, limesuite, libiio
+, USRPSupport ? false, uhd }:
 
 python3Packages.buildPythonApplication rec {
   pname = "urh";
@@ -12,14 +13,16 @@ python3Packages.buildPythonApplication rec {
     sha256 = "1jrrj9c4ddm37m8j0g693xjimpnlvx7lan5kxish5p14xpwdak35";
   };
 
-  buildInputs = [ hackrf rtl-sdr airspy limesuite ];
+  buildInputs = [ hackrf rtl-sdr airspy limesuite libiio ]
+    ++ lib.optional USRPSupport uhd;
+
   propagatedBuildInputs = with python3Packages; [
-    pyqt5 numpy psutil cython pyzmq
+    pyqt5 numpy psutil cython pyzmq pyaudio
   ];
 
   doCheck = false;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://github.com/jopohl/urh";
     description = "Universal Radio Hacker: investigate wireless protocols like a boss";
     license = licenses.gpl3;

pkgs/development/libraries/libiio/default.nix

@@ -1,6 +1,7 @@
 { stdenv, fetchFromGitHub
 , cmake, flex, bison
 , libxml2, python
+, libusb1, runtimeShell
 }:
 
 stdenv.mkDerivation rec {
@@ -17,7 +18,17 @@ stdenv.mkDerivation rec {
   outputs = [ "out" "lib" "dev" "python" ];
 
   nativeBuildInputs = [ cmake flex bison ];
-  buildInputs = [ libxml2 ];
+  buildInputs = [ libxml2 libusb1 ];
+
+  postPatch = ''
+    substituteInPlace libiio.rules.cmakein \
+      --replace /bin/sh ${runtimeShell}
+  '';
+
+  # since we can't expand $out in cmakeFlags
+  preConfigure = ''
+    cmakeFlags="$cmakeFlags -DUDEV_RULES_INSTALL_DIR=$out/etc/udev/rules.d"
+  '';
 
   postInstall = ''
     mkdir -p $python/lib/${python.libPrefix}/site-packages/