From dc019d9153f6771247fedf2bfc288d717709f0db Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Thu, 14 Dec 2023 10:50:53 +0000
Subject: [PATCH] travis: fix MacOS references.

Needed after https://github.com/Homebrew/brew/pull/16306.
---
 Formula/t/travis.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Formula/t/travis.rb b/Formula/t/travis.rb
index 5da38c5679cf..583663cb385b 100644
--- a/Formula/t/travis.rb
+++ b/Formula/t/travis.rb
@@ -184,7 +184,7 @@ class Travis < Formula
   def install
     ENV["GEM_HOME"] = libexec
     # gem issue on Mojave
-    ENV["SDKROOT"] = MacOS.sdk_path if MacOS.version == :mojave
+    ENV["SDKROOT"] = MacOS.sdk_path if OS.mac? && MacOS.version == :mojave
 
     resources.each do |r|
       r.fetch