src/plugin.c: Warn if plugin_register_*() overwrites an existing callback.

diff --git a/src/plugin.c b/src/plugin.c
index 5ca009c..182892a 100644 (file)
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -210,6 +210,10 @@ static int register_callback (llist_t **list, /* {{{ */
                old_cf = le->value;
                le->value = cf;
 
+               WARNING ("plugin: register_callback: "
+                               "a callback named `%s' already exists - "
+                               "overwriting the old entry!", name);
+
                destroy_callback (old_cf);
                sfree (key);
        }