nixpkgs: add ltl2ba 1.1

Signed-off-by: Austin Seipp <[e-mail]>

pkgs/applications/science/logic/ltl2ba/default.nix

···
+{ fetchurl, stdenv }:
+
+stdenv.mkDerivation rec {
+  name = "ltl2ba-${version}";
+  version = "1.1";
+
+  src = fetchurl {
+    url    = "http://www.lsv.ens-cachan.fr/~gastin/ltl2ba/${name}.tar.gz";
+    sha256 = "16z0gc7a9dkarwn0l6rvg5jdhw1q4qyn4501zlchy0zxqddz0sx6";
+  };
+
+  installPhase = ''
+    mkdir -p $out/bin
+    mv ltl2ba $out/bin
+  '';
+
+  meta = {
+    description = "fast translation from LTL formulae to Buchi automata";
+    homepage    = "http://www.lsv.ens-cachan.fr/~gastin/ltl2ba";
+    license     = stdenv.lib.licenses.gpl2Plus;
+    platforms   = stdenv.lib.platforms.linux;
+    maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   logisim = callPackage ../applications/science/logic/logisim {};
 
+  ltl2ba = callPackage ../applications/science/logic/ltl2ba {};
+
   matita = callPackage ../applications/science/logic/matita {
     ocaml = ocaml_3_11_2;
     inherit (ocamlPackages_3_11_2) findlib lablgtk ocaml_expat gmetadom ocaml_http