From 2dcd701c538a37f137406a83fb9334b622c536b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20Mart=C3=ADn=20Nieto?= <cmn@dwim.me>
Date: Sun, 31 Mar 2013 22:24:20 +0200
Subject: [PATCH] Implement a dummy upgrade function

We don't keep anything in priv, so there's nothing for us to do.
---
 c_src/geef.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/c_src/geef.c b/c_src/geef.c
index 5bbd5cc..c55e49f 100644
--- a/c_src/geef.c
+++ b/c_src/geef.c
@@ -60,6 +60,11 @@ static int load(ErlNifEnv *env, void **priv, ERL_NIF_TERM load_info)
 	return 0;
 }
 
+int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info)
+{
+	return 0;
+}
+
 static void unload(ErlNifEnv* env, void* priv_data)
 {
 	git_threads_shutdown();
@@ -109,4 +114,4 @@ static ErlNifFunc geef_funcs[] =
 	{"blob_content", 1, geef_blob_content},
 };
 
-ERL_NIF_INIT(geef, geef_funcs, load, NULL, NULL, unload)
+ERL_NIF_INIT(geef, geef_funcs, load, NULL, upgrade, unload)