kalibrate-rtl: new package

kalibrate-rtl calculates the local oscillator frequency offset in
RTL-SDR devices.

kalibrate-rtl has no tags/releases, so I'm using the latest commit from
git master (dated 2013-12-14). I made an upstream issue about making a
release back in May[1], but I've gotten no response yet.

[1] steve-m/kalibrate-rtl#7

pkgs/tools/misc/kalibrate-rtl/default.nix

@@ -0,0 +1,30 @@
+{ stdenv, fetchgit, autoreconfHook, pkgconfig, fftw, rtl-sdr, libusb1 }:
+
+stdenv.mkDerivation rec {
+  name = "kalibrate-rtl-20131214";
+
+  # There are no tags/releases, so use the latest commit from git master.
+  # Currently, the latest commit is from 2013-12-14.
+  src = fetchgit {
+    url = "https://github.com/steve-m/kalibrate-rtl.git";
+    rev = "aae11c8a8dc79692a94ccfee39ba01e8c8c05d38";
+    sha256 = "1spbfflkqnw9s8317ppsf7b1nnkicqsmaqsnz1zf8i49ix70i6kn";
+  };
+
+  buildInputs = [ autoreconfHook pkgconfig fftw rtl-sdr libusb1 ];
+
+  meta = with stdenv.lib; {
+    description = "Calculate local oscillator frequency offset in RTL-SDR devices";
+    longDescription = ''
+      Kalibrate, or kal, can scan for GSM base stations in a given frequency
+      band and can use those GSM base stations to calculate the local
+      oscillator frequency offset.
+
+      This package is for RTL-SDR devices.
+    '';
+    homepage = https://github.com/steve-m/kalibrate-rtl;
+    license = licenses.bsd2;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.bjornfor ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -1353,6 +1353,8 @@ let
 
   kazam = callPackage ../applications/video/kazam { };
 
+  kalibrate-rtl = callPackage ../tools/misc/kalibrate-rtl { };
+
   kexectools = callPackage ../os-specific/linux/kexectools { };
 
   keychain = callPackage ../tools/misc/keychain { };