[Bug]: ios build fails on macos

Is there an existing issue for this?

• I have searched the existing issues

Platform

iOS

OS version

macOS 15.5

App version

6.4.0

Current Behavior

build fails

$ sudo determinate-nixd upgrade
You are already running the latest version of Determinate Nix (3.8.2).
$ git log
commit 5ba53e5c7f486bee4883a3203e7f70b60859efc5 (HEAD -> stable, origin/stable)
Author: Narasimha-sc <166327228+Narasimha-sc@users.noreply.github.com>
Date:   Thu Jul 24 22:38:01 2025 +0000

Expected Behavior

build ios libs

Steps To Reproduce

$ time nix build --extra-experimental-features nix-command --extra-experimental-features flakes --print-build-logs .#hydraJobs.aarch64-darwin.aarch64-darwin:lib:simplex-chat

Relevant log output

> Configuring library for hnix-0.16.0..
       > building
       > Preprocessing library for hnix-0.16.0..
       > Building library for hnix-0.16.0..
       > [ 1 of 52] Compiling Nix.Utils        ( src/Nix/Utils.hs, dist/build/Nix/Utils.o, dist/build/Nix/Utils.dyn_o )
       > [ 2 of 52] Compiling Nix.Prelude      ( src/Nix/Prelude.hs, dist/build/Nix/Prelude.o, dist/build/Nix/Prelude.dyn_o )
       > [ 3 of 52] Compiling Nix.Unused       ( src/Nix/Unused.hs, dist/build/Nix/Unused.o, dist/build/Nix/Unused.dyn_o )
       > [ 4 of 52] Compiling Nix.Thunk        ( src/Nix/Thunk.hs, dist/build/Nix/Thunk.o, dist/build/Nix/Thunk.dyn_o )
       > [ 5 of 52] Compiling Nix.Thunk.Basic  ( src/Nix/Thunk/Basic.hs, dist/build/Nix/Thunk/Basic.o, dist/build/Nix/Thunk/Basic.dyn_o )
       > [ 6 of 52] Compiling Nix.Options      ( src/Nix/Options.hs, dist/build/Nix/Options.o, dist/build/Nix/Options.dyn_o )
       > [ 7 of 52] Compiling Nix.Fresh        ( src/Nix/Fresh.hs, dist/build/Nix/Fresh.o, dist/build/Nix/Fresh.dyn_o )
       > [ 8 of 52] Compiling Nix.Frames       ( src/Nix/Frames.hs, dist/build/Nix/Frames.o, dist/build/Nix/Frames.dyn_o )
       > [ 9 of 52] Compiling Nix.Atoms        ( src/Nix/Atoms.hs, dist/build/Nix/Atoms.o, dist/build/Nix/Atoms.dyn_o )
       > [10 of 52] Compiling Nix.Expr.Types   ( src/Nix/Expr/Types.hs, dist/build/Nix/Expr/Types.o, dist/build/Nix/Expr/Types.dyn_o )
       > /nix/store/x3s84jwqal1gqhc5w7qx291fm5vqqjxh-stdenv-darwin/setup: line 1607: 98270 Killed: 9               $SETUP_HS build lib:hnix -j$(($NIX_BUILD_CORES > 4 ? 4 : $NIX_BUILD_CORES)) --ghc-option=-fPIC --gcc-option=-fPIC
       For full logs, run:
         nix log /nix/store/8rdrz75a509jfym511lqyc45ggl2mpdl-hnix-lib-hnix-0.16.0.drv
error: Cannot build '/nix/store/r9jcb6m4z5knbxmgx02a11i8hfcc1xk2-nix-tools-exe-make-install-plan-0.1.0.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/1cdg4a0ylad6piy15zlj1awarmacq97g-nix-tools-exe-make-install-plan-0.1.0.0
         /nix/store/qagndgfa22a87rdi3x6vfp53wqqgvij9-nix-tools-exe-make-install-plan-0.1.0.0-data
error:
       … in the left operand of the update (//) operator
         at «github:input-output-hk/haskell.nix/d0c35e75cbbc6858770af42ac32b0b85495fbd71?narHash=sha256-rUIr6JNbCedt1g4gVYVvE9t0oFU6FUspCA0DS5cA8Bg%3D»/overlays/haskell.nix:1021:23:
         1020|         project = args: let p = project' args;
         1021|           in p.hsPkgs // p;
             |                       ^
         1022|

       … while evaluating the attribute 'hsPkgs'
         at «github:input-output-hk/haskell.nix/d0c35e75cbbc6858770af42ac32b0b85495fbd71?narHash=sha256-rUIr6JNbCedt1g4gVYVvE9t0oFU6FUspCA0DS5cA8Bg%3D»/overlays/haskell.nix:725:15:
          724|               # Haskell packages
          725|               hsPkgs = final.lib.mapAttrs (packageName: package':
             |               ^
          726|                 if package' == null

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Cannot build '/nix/store/c0w2kw97nsplslbjs19z7hjwwpna677q-haskell-project-plan-to-nix-pkgs.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/60r8fs70xv2x9344xycj5fmglw9la45p-haskell-project-plan-to-nix-pkgs-json
         /nix/store/6nzkk8cwnwqb3dcgy8ccx9qa39zl7nym-haskell-project-plan-to-nix-pkgs
         /nix/store/6vmda4lypy48s05wjvhfg3w05w06yyb8-haskell-project-plan-to-nix-pkgs-freeze

Reproduce the aarch64-darwin build with the provided nix build command and inspect the hnix-0.16.0 log, especially the Killed: 9 failure during Haskell compilation. Review the haskell.nix evaluation errors shown in the trace, then verify that the simplex-chat lib build completes successfully on macOS.