From f7d72ae77cb01b25b77cca9cfb700d3b12d9dbab Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Tue, 8 Dec 2020 17:23:06 +0000
Subject: [PATCH] ruby.sh: don't test ruby on macOS.

Instead defer to the `HOMEBREW_MACOS_SYSTEM_RUBY_NEW_ENOUGH`
variable.
---
 Library/Homebrew/utils/ruby.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/utils/ruby.sh b/Library/Homebrew/utils/ruby.sh
index bcd1811201..a8ad247e15 100644
--- a/Library/Homebrew/utils/ruby.sh
+++ b/Library/Homebrew/utils/ruby.sh
@@ -32,7 +32,8 @@ unusable_ruby() {
   if [[ -n "$HOMEBREW_MACOS_SYSTEM_RUBY_NEW_ENOUGH" ]]
   then
     return 1
-  elif [[ -n "$HOMEBREW_RUBY_PATH" && -z "$HOMEBREW_FORCE_VENDOR_RUBY" ]] && test_ruby "$HOMEBREW_RUBY_PATH"
+  elif [[ -z "$HOMEBREW_MACOS" && -n "$HOMEBREW_RUBY_PATH" && -z "$HOMEBREW_FORCE_VENDOR_RUBY" ]] &&
+       test_ruby "$HOMEBREW_RUBY_PATH"
   then
     return 1
   else