From 6f14a30022e284398017b47d37f3f717f384f985 Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Tue, 22 Sep 2020 11:22:04 -0700
Subject: [PATCH] [ruby/logger] Consider cygwin a Windows platform

This should fix Ruby Bug 12468.

https://github.com/ruby/logger/commit/49de53d1fc
---
 lib/logger/log_device.rb      | 2 +-
 test/logger/test_logdevice.rb | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/logger/log_device.rb b/lib/logger/log_device.rb
index fe7d54fb81..96d77b7b6a 100644
--- a/lib/logger/log_device.rb
+++ b/lib/logger/log_device.rb
@@ -135,7 +135,7 @@ class Logger
       end
     end
 
-    if /mswin|mingw/ =~ RUBY_PLATFORM
+    if /mswin|mingw|cygwin/ =~ RUBY_PLATFORM
       def lock_shift_log
         yield
       end
diff --git a/test/logger/test_logdevice.rb b/test/logger/test_logdevice.rb
index 2a01dab17f..6fefd356cd 100644
--- a/test/logger/test_logdevice.rb
+++ b/test/logger/test_logdevice.rb
@@ -451,7 +451,7 @@ class TestLogDevice < Test::Unit::TestCase
     end
   ensure
     logdev0.close
-  end unless /mswin|mingw/ =~ RUBY_PLATFORM
+  end unless /mswin|mingw|cygwin/ =~ RUBY_PLATFORM
 
   def test_shifting_midnight
     Dir.mktmpdir do |tmpdir|