uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/pyrtlsdr/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchpatch
+, rtl-sdr
+, m2r
+}:
+
+buildPythonPackage rec {
+  pname = "pyrtlsdr";
+  version = "0.2.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "7942fe2e7821d09206002ea7e820e694094b3f964885123eb6eee1167f39b8da";
+  };
+
+  # Replace pypandoc dependency by m2r
+  # See https://github.com/roger-/pyrtlsdr/pull/78
+  patches = [
+    (fetchpatch {
+      url = "${meta.homepage}/commit/2b7df0b.patch";
+      sha256 = "04h5z80969jgdgrf98b9ps56sybms09xacvmj6rwcfrmanli8rgf";
+    })
+    (fetchpatch {
+      url = "${meta.homepage}/commit/97dc3d0.patch";
+      sha256 = "1v1j0n91jwpsiam2j34yj71z4h39cvk4gi4565zgjrzsq6xr93i0";
+    })
+  ];
+
+  nativeBuildInputs = [ m2r ];
+
+  postPatch = ''
+    sed "s|driver_files =.*|driver_files = ['${rtl-sdr}/lib/librtlsdr.so']|" -i rtlsdr/librtlsdr.py
+  '';
+
+  # No tests that can be used.
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Python wrapper for librtlsdr (a driver for Realtek RTL2832U based SDR's)";
+    homepage = "https://github.com/roger-/pyrtlsdr";
+    license = licenses.gpl3;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ bjornfor ];
+  };
+}