From 4b6fd8329b46701414aba2eeca10013cf66ec513 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 2 Jan 2021 11:16:45 +0900
Subject: [PATCH] mkmf.rb: always try_compile as try_header

Get rid of "present but cannot be compiled" headers, on some
multi-architecture platforms.
---
 lib/mkmf.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index d4fbabec34..488f7877db 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -616,7 +616,7 @@ MSG
     MakeMakefile.rm_f "#{CONFTEST}*"
   end
 
-  alias_method :try_header, (config_string('try_header') || :try_cpp)
+  alias try_header try_compile
 
   def cpp_include(header)
     if header