Add libassuan1 back

opensc needs it

svn path=/nixpkgs/trunk/; revision=21887

pkgs/development/libraries/libassuan1/default.nix

@@ -0,0 +1,28 @@
+{ fetchurl, stdenv, pth }:
+
+stdenv.mkDerivation rec {
+  name = "libassuan-1.0.5";
+
+  src = fetchurl {
+    url = "mirror://gnupg/libassuan/${name}.tar.bz2";
+    sha256 = "1xar8i5jmah75wa9my4x7vkc5b6nmzd2p6k9kmpdg9hsv04292y5";
+  };
+
+  propagatedBuildInputs = [ pth ];
+
+  doCheck = true;
+
+  meta = {
+    description = "Libassuan, the IPC library used by GnuPG and related software";
+
+    longDescription = ''
+      Libassuan is a small library implementing the so-called Assuan
+      protocol.  This protocol is used for IPC between most newer
+      GnuPG components.  Both, server and client side functions are
+      provided.
+    '';
+
+    homepage = http://gnupg.org;
+    license = "LGPLv2+";
+  };
+}