Add package enca 1.13 to tools/text

pkgs/tools/text/enca/default.nix

@@ -0,0 +1,29 @@
+{ stdenv, fetchurl, libiconv ? null }:
+
+stdenv.mkDerivation rec {
+  name = "enca-1.13";
+
+  src = fetchurl {
+    url = "http://dl.cihar.com/enca/${name}.tar.bz2";
+    sha256 = "6c091455d524b3ddae3533fe9bb375092f60ad6fe252e0777c873bd7869c7432";
+  };
+
+  buildInputs = (stdenv.lib.optional (libiconv != null) libiconv);
+
+  meta = {
+    homepage = http://freecode.com/projects/enca;
+    description = "Detects the encoding of text files and reencodes them";
+
+    longDescription = ''
+        Enca detects the encoding of text files, on the basis of knowledge
+        of their language. It can also convert them to other encodings,
+        allowing you to recode files without knowing their current encoding.
+        It supports most of Central and East European languages, and a few
+        Unicode variants, independently on language.
+    '';
+
+    license = "GPLv2";
+
+    platforms = stdenv.lib.platforms.all;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -447,6 +447,8 @@ let
 
   eggdrop = callPackage ../tools/networking/eggdrop { };
 
+  enca = callPackage ../tools/text/enca { };
+
   mcrl = callPackage ../tools/misc/mcrl { };
 
   mcrl2 = callPackage ../tools/misc/mcrl2 { };