From ee5c80732095c81fb6b3641414ee317f6abedb42 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 5 Nov 2019 02:02:14 +0900
Subject: [PATCH] Adjust a fucntion signature

---
 ext/zlib/zlib.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index 2d93819..23466d1 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -4277,13 +4277,19 @@ rb_gzreader_external_encoding(VALUE self)
 }
 
 static VALUE
-zlib_gzip_ensure(VALUE arg)
+zlib_gzip_end_rescue(VALUE arg)
 {
     struct gzfile *gz = (struct gzfile *)arg;
-    rb_rescue((VALUE(*)())gz->end, arg, NULL, Qnil);
+    gz->end(gz);
     return Qnil;
 }
 
+static VALUE
+zlib_gzip_ensure(VALUE arg)
+{
+    return rb_rescue(zlib_gzip_end_rescue, arg, NULL, Qnil);
+}
+
 static void
 zlib_gzip_end(struct gzfile *gz)
 {