From af9a904f387d2b6b7ab2ade446b408ecd364aa53 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 10 Dec 2024 15:50:55 +0900
Subject: [PATCH] [ruby/resolv] Build the extension library only when CRuby
 (Fix https://github.com/ruby/resolv/pull/69)

On JRuby no C compiler is available and this call results in a runtime
error.

https://github.com/ruby/resolv/commit/33105bc504
---
 ext/win32/resolv/extconf.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/win32/resolv/extconf.rb b/ext/win32/resolv/extconf.rb
index ac865ec5e1..4afbf8a4f6 100644
--- a/ext/win32/resolv/extconf.rb
+++ b/ext/win32/resolv/extconf.rb
@@ -1,5 +1,5 @@
 require 'mkmf'
-if have_library('iphlpapi', 'GetNetworkParams')
+if RUBY_ENGINE == "ruby" and have_library('iphlpapi', 'GetNetworkParams')
   create_makefile('win32/resolv')
 else
   File.write('Makefile', "all clean install:\n\t@echo Done: $(@)\n")