1 files changed, 6 insertions, 2 deletions
diff --git a/ext/openssl/deprecation.rb b/ext/openssl/deprecation.rb
index d77353678a..7dfc87c1c6 100644
--- a/ext/openssl/deprecation.rb
+++ b/ext/openssl/deprecation.rb
@@ -16,7 +16,11 @@ module OpenSSL
   end
 
   def self.check_func(func, header)
-    have_func(func, header, deprecated_warning_flag) and
-      have_header(header, nil, deprecated_warning_flag)
+    have_func(func, header, deprecated_warning_flag)
+  end
+
+  def self.check_func_or_macro(func, header)
+    check_func(func, header) or
+      have_macro(func, header) && $defs.push("-DHAVE_#{func.upcase}")
   end
 end