From f82b9d8d7b29130d27f5c13aa3bdd2ed3f9a57c8 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 1 Jul 2025 17:38:25 +0900
Subject: [ruby/strscan] Run `have_func` with the header providing the
 declarations

https://github.com/ruby/strscan/commit/18c0a59b65
---
 ext/strscan/extconf.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/strscan/extconf.rb b/ext/strscan/extconf.rb
index abcbdb3ad2..3c311d2364 100644
--- a/ext/strscan/extconf.rb
+++ b/ext/strscan/extconf.rb
@@ -2,7 +2,7 @@
 require 'mkmf'
 if RUBY_ENGINE == 'ruby'
   $INCFLAGS << " -I$(top_srcdir)" if $extmk
-  have_func("onig_region_memsize")
+  have_func("onig_region_memsize(NULL)")
   have_func("rb_reg_onig_match", "ruby/re.h")
   create_makefile 'strscan'
 else
-- 
cgit v1.2.3