From 8a1cd963705a17277035087fe4518c3bb535a212 Mon Sep 17 00:00:00 2001
From: April Schleck <april@exclusivelyducks.com>
Date: Sat, 22 Nov 2025 21:40:14 -0800
Subject: [PATCH] gromacs: use Advanced SIMD on Apple Silicon

---
 .../applications/science/molecular-dynamics/gromacs/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/science/molecular-dynamics/gromacs/default.nix b/pkgs/applications/science/molecular-dynamics/gromacs/default.nix
index 031b996a2b87..efef52636c5c 100644
--- a/pkgs/applications/science/molecular-dynamics/gromacs/default.nix
+++ b/pkgs/applications/science/molecular-dynamics/gromacs/default.nix
@@ -40,6 +40,8 @@ let
       "SSE4.1"
     else if stdenv.hostPlatform.system == "x86_64-darwin" then
       "SSE4.1"
+    else if stdenv.hostPlatform.system == "aarch64-darwin" then
+      "ARM_NEON_ASIMD"
     else if stdenv.hostPlatform.system == "aarch64-linux" then
       "ARM_NEON_ASIMD"
     else