From 91fe645750db06781eb78c2a93a23e042fe14f0a Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Fri, 14 Jul 2023 14:35:39 +0800
Subject: [PATCH] extend/ENV/super: add `ENV.O3`

Having this would have been, or would be, useful on multiple occassions:

- Homebrew/homebrew-core#94724
- Homebrew/homebrew-core#136551
- #15372

I think it's time that we added this back.
---
 Library/Homebrew/extend/ENV/super.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Library/Homebrew/extend/ENV/super.rb b/Library/Homebrew/extend/ENV/super.rb
index f797e4bc23..12664db565 100644
--- a/Library/Homebrew/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/ENV/super.rb
@@ -375,6 +375,15 @@ module Superenv
       self["HOMEBREW_OPTIMIZATION_LEVEL"] = "O1"
     end
   end
+
+  sig { params(block: T.nilable(T.proc.void)).void }
+  def O3(&block)
+    if block
+      with_env(HOMEBREW_OPTIMIZATION_LEVEL: "O3", &block)
+    else
+      self["HOMEBREW_OPTIMIZATION_LEVEL"] = "O3"
+    end
+  end
   # rubocop: enable Naming/MethodName
 end