From c98505baf74ce573a24c38da69446207d9629e31 Mon Sep 17 00:00:00 2001
From: Ruoyu Zhong <zhongruoyu@outlook.com>
Date: Thu, 21 Aug 2025 00:52:34 +0800
Subject: [PATCH] os/linux/glibc: `typed: strict`

---
 Library/Homebrew/os/linux/glibc.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/os/linux/glibc.rb b/Library/Homebrew/os/linux/glibc.rb
index eff5a25a8e..2a60c930c2 100644
--- a/Library/Homebrew/os/linux/glibc.rb
+++ b/Library/Homebrew/os/linux/glibc.rb
@@ -1,4 +1,4 @@
-# typed: true # rubocop:todo Sorbet/StrictSigil
+# typed: strict
 # frozen_string_literal: true
 
 module OS
@@ -9,6 +9,7 @@ module OS
 
       sig { returns(Version) }
       def system_version
+        @system_version ||= T.let(nil, T.nilable(Version))
         @system_version ||= begin
           version = Utils.popen_read("/usr/bin/ldd", "--version")[/ (\d+\.\d+)/, 1]
           if version
@@ -21,6 +22,7 @@ module OS
 
       sig { returns(Version) }
       def version
+        @version ||= T.let(nil, T.nilable(Version))
         @version ||= begin
           version = Utils.popen_read(HOMEBREW_PREFIX/"opt/glibc/bin/ldd", "--version")[/ (\d+\.\d+)/, 1]
           if version