initial nix support

.gitignore

@@ -5,4 +5,4 @@ CMakeLists.txt.user
 InterfacesAndLibraries
 .DS_Store
 .vscode
-
+result

default.nix

@@ -0,0 +1,27 @@
+{ system ? builtins.currentSystem, pkgs ? import <nixpkgs> { inherit system; }
+, ... }:
+
+pkgs.callPackage ({ 
+    stdenv, cmake, ninja, bison, flex,ruby, boost, gmp, mpfr, libmpc, zlib,
+    lib, bash }:
+
+  stdenv.mkDerivation {
+    name = "retro68";
+    nativeBuildInputs = [ cmake bison ruby flex ];
+    buildInputs = [
+      boost
+      gmp
+      mpfr
+      libmpc
+      zlib
+      bash
+    ];
+    src = if lib.inNixShell then null else pkgs.nix-gitignore.gitignoreSource [ ] ./.;
+  
+    builder = ./nix/builder.sh;
+
+    hardeningDisable = ["all"];
+  }
+  
+  
+  ) { }

nix/builder.sh

@@ -0,0 +1,3 @@
+source $stdenv/setup
+
+bash $src/build-toolchain.bash --prefix=$out