zbackup: init at 1.4.4

pkgs/tools/backup/zbackup/default.nix

@@ -0,0 +1,17 @@
+{ stdenv, fetchurl, cmake, zlib, openssl, protobuf, protobufc, lzo, libunwind } :
+stdenv.mkDerivation rec {
+  name = "zbackup-${version}";
+  version = "1.4.4";
+  src = fetchurl {
+    url = "https://github.com/zbackup/zbackup/archive/1.4.4.tar.gz";
+    sha256 = "11csla7n44lg7x6yqg9frb21vnkr8cvnh6ardibr3nj5l39crk7g";
+  };
+  buildInputs = [ zlib openssl protobuf lzo libunwind ];
+  nativeBuildInputs = [ cmake protobufc ];
+  meta = {
+    description = "A versatile deduplicating backup tool";
+    homepage = "http://zbackup.org/";
+    meta.platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2Plus;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -3571,6 +3571,8 @@ let
   # To expose more packages for Yi, override the extraPackages arg.
   yi = callPackage ../applications/editors/yi/wrapper.nix { };
 
+  zbackup = callPackage ../tools/backup/zbackup {};
+
   zbar = callPackage ../tools/graphics/zbar {
     pygtk = lib.overrideDerivation pygtk (x: {
       gtk = gtk2;