From c344a3ff3dbde3db05edb802d8951924689d1d65 Mon Sep 17 00:00:00 2001
From: Tokarak <63452145+Tokarak@users.noreply.github.com>
Date: Tue, 13 Jun 2023 11:35:45 +0100
Subject: [PATCH] Apply cpu-optimisation to Rust projects (hardcoded)

---
 Library/Homebrew/formula.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index a80ff7ac25..14c710ff31 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1543,7 +1543,11 @@ class Formula
   # Standard parameters for cargo builds.
   sig { params(root: T.any(String, Pathname), path: String).returns(T::Array[T.any(String, Pathname)]) }
   def std_cargo_args(root: prefix, path: ".")
-    ["--locked", "--root", root, "--path", path]
+    ["--locked", "--root", root, "--path", path,
+     "--config", "target.x86_64-apple-darwin.rustflags=['-Ctarget-cpu=nehalem']",
+     "--config", "target.aarch64-apple-darwin.rustflags=['-Ctarget-cpu=apple-m1']",
+    # Default target-cpu is apple-m1 since Rust 1.71.0
+     ]
   end
 
   # Standard parameters for CMake builds.