From 068576042b3b58f8180b24a36c07199a1a3fd380 Mon Sep 17 00:00:00 2001
From: Jade Lovelace <lix@jade.fyi>
Date: Thu, 13 Jun 2024 15:11:28 -0700
Subject: packaging: Move binaryTarball to a passthru attr in package.nix

This is motivated by flakes being bad and all the stuff that calls
things by "system" being utterly unable to cope with cross compilation.
So if we go shove it in package.nix it is suddenly usable from cross
contexts.

Usage:

```
nix build -L .#nix-riscv64-linux.binaryTarball
```

Change-Id: I702ebf2ac5bd9d1c57662f968b000073134df336
---
 flake.nix   | 8 ++------
 package.nix | 8 ++++++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/flake.nix b/flake.nix
index 8f93127f7..792387da4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -152,8 +152,6 @@
         }
       );
 
-      binaryTarball = nix: pkgs: pkgs.callPackage ./nix-support/binary-tarball.nix { inherit nix; };
-
       overlayFor =
         getStdenv: final: prev:
         let
@@ -236,13 +234,11 @@
         );
 
         # Perl bindings for various platforms.
-        perlBindings = forAllSystems (system: nixpkgsFor.${system}.native.nix.perl-bindings);
+        perlBindings = forAllSystems (system: nixpkgsFor.${system}.native.nix.passthru.perl-bindings);
 
         # Binary tarball for various platforms, containing a Nix store
         # with the closure of 'nix' package.
-        binaryTarball = forAllSystems (
-          system: binaryTarball nixpkgsFor.${system}.native.nix nixpkgsFor.${system}.native
-        );
+        binaryTarball = forAllSystems (system: nixpkgsFor.${system}.native.nix.passthru.binaryTarball);
 
         # docker image with Lix inside
         dockerImage = lib.genAttrs linux64BitSystems (system: self.packages.${system}.dockerImage);
diff --git a/package.nix b/package.nix
index f65611ea6..ef6f317e8 100644
--- a/package.nix
+++ b/package.nix
@@ -376,8 +376,6 @@ stdenv.mkDerivation (finalAttrs: {
     platforms = lib.platforms.unix;
   };
 
-  passthru.perl-bindings = pkgs.callPackage ./perl { inherit fileset stdenv; };
-
   # Export the patched version of boehmgc.
   # flake.nix exports that into its overlay.
   passthru = {
@@ -509,5 +507,11 @@ stdenv.mkDerivation (finalAttrs: {
           '';
         }
       );
+
+    perl-bindings = pkgs.callPackage ./perl { inherit fileset stdenv; };
+
+    binaryTarball = pkgs.callPackage ./nix-support/binary-tarball.nix {
+      nix = finalAttrs.finalPackage;
+    };
   };
 })
-- 
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