inform6: init at 6.34-6.12.2

nixpkgs already has Inform 7, which is a lovely design system for creating interactive fiction (text adventures) using a natural language compiler and a rich IDE. However, underlying Inform 7 is a C-like language, Inform 6, which has a much simpler toolchain and its own compiler and standard libraries, which I have packaged for nix here.

pkgs/development/compilers/inform6/default.nix

@@ -0,0 +1,28 @@
+{ stdenv, fetchurl, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "inform6";
+  version = "6.34-6.12.2";
+
+  src = fetchurl  {
+    url = "https://ifarchive.org/if-archive/infocom/compilers/inform6/source/inform-${version}.tar.gz";
+    sha256 = "c149f143f2c29a4cb071e578afef8097647cc9e823f7fcfab518ac321d9d259f";
+  };
+
+  buildInputs = [ perl ];
+
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  meta = with stdenv.lib; {
+    description = "Interactive fiction compiler and libraries";
+    longDescription = ''
+      Inform 6 is a C-like programming language for writing interactive fiction
+      (text adventure) games.
+    '';
+    homepage = "https://gitlab.com/DavidGriffith/inform6unix";
+    changelog = "https://gitlab.com/DavidGriffith/inform6unix/-/raw/${version}/NEWS";
+    license = licenses.artistic2;
+    maintainers = with stdenv.lib.maintainers; [ ddelabru ];
+    platforms = platforms.all;
+  };
+}