3 files changed, 23 insertions, 9 deletions
diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index 5fdcf520440..43aecdef5f2 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -1,9 +1,5 @@
-{ stdenv, cacert, git, rust, cargo-vendor, python3 }:
-let
-  fetchcargo = import ./fetchcargo.nix {
-    inherit stdenv cacert git rust cargo-vendor python3;
-  };
-in
+{ stdenv, cacert, git, cargo, rustc, cargo-vendor, fetchcargo, python3 }:
+
 { name, cargoSha256 ? "unset"
 , src ? null
 , srcs ? null
@@ -45,7 +41,7 @@ in stdenv.mkDerivation (args // {
 
   patchRegistryDeps = ./patch-registry-deps;
 
-  buildInputs = [ cacert git rust.cargo rust.rustc ] ++ buildInputs;
+  buildInputs = [ cacert git cargo rustc ] ++ buildInputs;
 
   patches = cargoPatches ++ patches;
 
diff --git a/pkgs/build-support/rust/fetchcargo.nix b/pkgs/build-support/rust/fetchcargo.nix
index 9e77f8817b2..c23fa66ef9f 100644
--- a/pkgs/build-support/rust/fetchcargo.nix
+++ b/pkgs/build-support/rust/fetchcargo.nix
@@ -1,4 +1,4 @@
-{ stdenv, cacert, git, rust, cargo-vendor, python3 }:
+{ stdenv, cacert, git, cargo, cargo-vendor, python3 }:
 let cargo-vendor-normalise = stdenv.mkDerivation {
   name = "cargo-vendor-normalise";
   src = ./cargo-vendor-normalise.py;
@@ -20,7 +20,7 @@ in
 { name ? "cargo-deps", src, srcs, patches, sourceRoot, sha256, cargoUpdateHook ? "" }:
 stdenv.mkDerivation {
   name = "${name}-vendor";
-  nativeBuildInputs = [ cacert cargo-vendor git cargo-vendor-normalise rust.cargo ];
+  nativeBuildInputs = [ cacert cargo-vendor git cargo-vendor-normalise cargo ];
   inherit src srcs patches sourceRoot;
 
   phases = "unpackPhase patchPhase installPhase";
diff --git a/pkgs/build-support/rust/make-rust-platform.nix b/pkgs/build-support/rust/make-rust-platform.nix
new file mode 100644
index 00000000000..afbc56865ff
--- /dev/null
+++ b/pkgs/build-support/rust/make-rust-platform.nix
@@ -0,0 +1,18 @@
+{ callPackage }:
+{ rustc, cargo, ... }: {
+  rust = {
+    inherit rustc cargo;
+  };
+
+  buildRustPackage = callPackage ./default.nix {
+    inherit rustc cargo;
+
+    fetchcargo = callPackage ./fetchcargo.nix {
+      inherit cargo;
+    };
+  };
+
+  rustcSrc = callPackage ../../development/compilers/rust/rust-src.nix {
+    inherit rustc;
+  };
+}