Merge pull request #1 from rigille/master

Fix build of kind-scm

bin/README.md

@@ -0,0 +1 @@
+This folder contains various backends for Kind, `js` has the more mature javascript backend, `scm` has the scheme backend which won't stack overflow.

bin/scm/README.md

@@ -0,0 +1,23 @@
+The scheme backend is built with Nix! First install nix:
+```bash
+curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install
+```
+Here's an example `shell.nix` which has `kind-scm` available to use:
+```nix
+{ pkgs ? import <nixpkgs> {} }:
+let
+  kind_legacy = pkgs.fetchFromGitHub {
+    owner = "rigille";
+    repo = "Kind-Legacy";
+    rev = "2c5a96868296aeeed5260e9732ff7b052d0e9d43";
+    sha256 = "28c8325659e6d5883c604552e67470e09a59bd16156fa7f1e7e11623d36d62ad";
+  };
+  kind_scm = import "${kind_legacy}/bin/scm" { pkgs=pkgs; };
+in
+pkgs.mkShell {
+  buildInputs = [
+    kind_scm
+  ];
+}
+```
+Alternatively you can run `nix-env --file default.nix --install` and install `kind-scm` globally on your system.

bin/scm/default.nix

@@ -0,0 +1,19 @@
+
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.stdenv.mkDerivation {
+  name = "kind-scm";
+  src = ./.;
+  buildInputs = [
+    pkgs.chez
+  ];
+  buildPhase = ''
+    cd src/
+    scheme compile.scm
+    cd ..
+    chmod +x bin/kind-scm
+  '';
+  installPhase = ''
+    mkdir -p $out/bin
+    mv bin/kind-scm $out/bin/kind-scm
+  '';
+}