From eceaa80de7ecb6648e3829a9258e1349679e5805 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Wed, 7 Aug 2019 08:49:36 +0900
Subject: `RUBY_PLATFORM` may not contain `mswin` or `mingw`; Add `msys`

---
 mrbgems/mruby-io/mrbgem.rake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mrbgems/mruby-io/mrbgem.rake b/mrbgems/mruby-io/mrbgem.rake
index d79964590..e4f0b7bb6 100644
--- a/mrbgems/mruby-io/mrbgem.rake
+++ b/mrbgems/mruby-io/mrbgem.rake
@@ -6,7 +6,7 @@ MRuby::Gem::Specification.new('mruby-io') do |spec|
   spec.cc.include_paths << "#{build.root}/src"
 
   case RUBY_PLATFORM
-  when /mingw|mswin/
+  when /mingw|mswin|msys/
     spec.linker.libraries += ['Ws2_32']
     #spec.cc.include_paths += ["C:/Windows/system/include"]
     spec.linker.library_paths += ["C:/Windows/system"]
-- 
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