Add MIT/GNU Scheme.

svn path=/nixpkgs/trunk/; revision=20719

pkgs/development/compilers/mit-scheme/default.nix

···
+{ fetchurl, stdenv }:
+
+let version = "9.0.1"; in
+stdenv.mkDerivation {
+  name = "mit-scheme-${version}";
+
+  src = fetchurl {
+    url = "mirror://gnu/mit-scheme/stable.pkg/${version}/mit-scheme-c-${version}.tar.gz";
+    sha256 = "1g2mifrx0bvag0hlrbk81rkrlm1pbn688zw8b9d2i0sl5g2p1ril";
+  };
+
+  preConfigure = "cd src";
+  buildPhase = "./etc/make-liarc.sh --prefix=$out";
+
+  # XXX: The `check' target doesn't exist.
+  doCheck = false;
+
+  meta = {
+    description = "MIT/GNU Scheme, a native code Scheme compiler";
+
+    longDescription =
+      '' MIT/GNU Scheme is an implementation of the Scheme programming
+         language, providing an interpreter, compiler, source-code debugger,
+         integrated Emacs-like editor, and a large runtime library.  MIT/GNU
+         Scheme is best suited to programming large applications with a rapid
+         development cycle.
+      '';
+
+    homepage = http://www.gnu.org/software/mit-scheme/;
+
+    license = "GPLv2+";
+
+    maintainers = [ stdenv.lib.maintainers.ludo ];
+    platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
+  };
+}

pkgs/top-level/all-packages.nix

···
     inherit llvm perl libtool bison;
   };
 
+  mitscheme = import ../development/compilers/mit-scheme {
+    inherit fetchurl stdenv;
+  };
+
   mono = import ../development/compilers/mono {
     inherit fetchurl stdenv bison pkgconfig gettext perl glib;
   };