1 files changed, 23 insertions, 5 deletions
diff --git a/default.nix b/default.nix
index 76c11cf..12a4ba5 100644
--- a/default.nix
+++ b/default.nix
@@ -1,4 +1,26 @@
-let
+with import ./nixpkgs.nix;
+rec {
+  rust = rustChannelOf {
+    channel = "stable";
+    date = "2018-08-02";
+  };
+
+  target = "x86_64-unknown-linux-musl";
+
+  buildRustCrateWithFlags = flags: args: (buildRustCrate.override {
+    rustc = rust.rust.override {
+      targets = [ "x86_64-unknown-linux-gnu" target ];
+    };
+
+    defaultCrateOverrides = defaultCrateOverrides // {
+      messages = attrs: {
+        nativeBuildInputs = [ capnproto ];
+      };
+    };
+  }) (args // {
+    extraRustcOpts = (args.extraRustcOpts or []) ++ flags;
+  });
+  
   overlay = self: super: rec {
     buildRustCrateHelpers = self.callPackage ./buildRustCrateHelpers.nix {};
 
@@ -12,8 +34,4 @@ let
   nixpkgs = import (builtins.fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) {
     overlays = [ overlay ];
   };
-in {
-  inherit (nixpkgs.pkgsCross.aarch64-multiplatform)
-    hello
-    rustHello;
 }