1 files changed, 21 insertions(+), 13 deletions(-)

M purs/0.15.3.nix

@@ 1,22 1,30 @@
-{ pkgs ? import <nixpkgs> { } }:
+{ pkgs ? import <nixpkgs> { }, system ? pkgs.stdenv.hostPlatform.system }:
 
 let
   version = "v0.15.3";
 
+  urls = {
+    "x86_64-linux" = {
+      url = "https://github.com/purescript/purescript/releases/download/${version}/linux64.tar.gz";
+      sha256 = "083pd5l0q2dj4ky9r4sgnfiinlch73qcvl3l26jf3nfs48y8hffv";
+    };
+    "x86_64-darwin" = {
+      url = "https://github.com/purescript/purescript/releases/download/${version}/macos.tar.gz";
+      sha256 = "01ka3j1aakcabw6kmkfbk4c2cl2prihk6g8zvc995l83snj4n403";
+    };
+  };
+
   src =
-    if pkgs.stdenv.hostPlatform.system == "x86_64-linux" then
-      (pkgs.fetchurl {
-        url = "https://github.com/purescript/purescript/releases/download/${version}/linux64.tar.gz";
-        sha256 = "083pd5l0q2dj4ky9r4sgnfiinlch73qcvl3l26jf3nfs48y8hffv";
-      })
-    else if pkgs.stdenv.hostPlatform.system == "x86_64-darwin" then
-      (pkgs.fetchurl {
-        url = "https://github.com/purescript/purescript/releases/download/${version}/macos.tar.gz";
-        sha256 = "01ka3j1aakcabw6kmkfbk4c2cl2prihk6g8zvc995l83snj4n403";
-      })
+    if builtins.hasAttr system urls then
+      (pkgs.fetchurl urls.${system})
+    else if system == "aarch64-darwin" then
+      let
+        useArch = "x86_64-darwin";
+        msg = "Using the non-native ${useArch} binary. While this binary may run under Rosetta 2 translation, no guarantees can be made about stability or performance.";
+      in
+      pkgs.stdenv.warn msg (pkgs.fetchurl urls.${useArch})
     else
-      throw "Architecture not supported";
-
+      throw "Architecture not supported: ${system}";
 in
 import ./mkPursDerivation.nix {
   inherit pkgs version src;