Add GNU Prolog.

svn path=/nixpkgs/trunk/; revision=14122

pkgs/development/compilers/gprolog/default.nix

@@ -0,0 +1,57 @@
+{ stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  name = "gprolog-1.3.1";
+
+  src = fetchurl {
+    urls = [
+      "mirror://gnu/gprolog/${name}.tar.gz"
+      "http://www.gprolog.org/${name}.tar.gz"
+    ];
+    sha256 = "05n3k0yynzvpc1ir1nw5bwm6m3ail0a0r1vqdsh4fii3kndiacrw";
+  };
+
+  configurePhase = "cd src ;"
+    + "./configure --prefix=$out "
+    + "--with-install-dir=$out/share/${name} "
+    + "--with-examples-dir=$out/share/doc/${name}/examples "
+    + "--with-doc-dir=$out/share/doc/${name}";
+
+  doCheck = true;
+
+  postInstall = ''
+    ln -vs "$out/share/${name}/include" "$out/include"
+  '';
+
+  meta = {
+    homepage = http://www.gnu.org/software/gprolog/;
+
+    description = "GNU Prolog, a free Prolog compiler with constraint solving over finite domains";
+
+    longDescription = ''
+      GNU Prolog is a free Prolog compiler with constraint solving
+      over finite domains developed by Daniel Diaz.
+
+      GNU Prolog accepts Prolog+constraint programs and produces
+      native binaries (like gcc does from a C source).  The obtained
+      executable is then stand-alone.  The size of this executable can
+      be quite small since GNU Prolog can avoid to link the code of
+      most unused built-in predicates.  The performances of GNU Prolog
+      are very encouraging (comparable to commercial systems).
+
+      Beside the native-code compilation, GNU Prolog offers a
+      classical interactive interpreter (top-level) with a debugger.
+
+      The Prolog part conforms to the ISO standard for Prolog with
+      many extensions very useful in practice (global variables, OS
+      interface, sockets,...).
+
+      GNU Prolog also includes an efficient constraint solver over
+      Finite Domains (FD).  This opens contraint logic programming to
+      the user combining the power of constraint programming to the
+      declarativity of logic programming.
+    '';
+
+    license = "GPLv2+";
+  };
+}

pkgs/top-level/all-packages.nix

@@ -1722,6 +1722,10 @@ let
     };
   */
 
+  gprolog = import ../development/compilers/gprolog {
+    inherit fetchurl stdenv;
+  };
+
   gwt = import ../development/compilers/gwt {
     inherit stdenv fetchurl;
     inherit (gtkLibs) glib gtk pango atk;