From 6a25122bfca4917f38092f3f0c4fddeb8798fb39 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 10 Dec 2012 09:41:32 +0100
Subject: [PATCH] rb_cvar_set() takes three arguments in Ruby 1.9

---
 src/dumm/ext/dumm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/dumm/ext/dumm.c b/src/dumm/ext/dumm.c
index 7c7d65acd..1f047679c 100644
--- a/src/dumm/ext/dumm.c
+++ b/src/dumm/ext/dumm.c
@@ -141,7 +141,11 @@ static VALUE guest_hash(VALUE class)
 	if (!rb_cvar_defined(class, id))
 	{
 		VALUE hash = guest_hash_create(class);
+#ifdef RB_CVAR_SET_4_ARGS
 		rb_cvar_set(class, id, hash, 0);
+#else
+		rb_cvar_set(class, id, hash);
+#endif
 		return hash;
 	}
 	return rb_cvar_get(class, id);