From 15c787ef14d2637d7ffebd9dda93a46e5d4832d9 Mon Sep 17 00:00:00 2001
From: Marius Halden <marius.h@lden.org>
Date: Tue, 2 Aug 2016 13:30:03 +0200
Subject: Set NULL_OK for sets with NULL as default

---
 set.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/set.c b/set.c
index 91dd7bd5..8727209f 100644
--- a/set.c
+++ b/set.c
@@ -63,6 +63,8 @@ set_t *set_add(set_t **head, const char *key, const char *def, set_eval eval, vo
 	}
 	if (def) {
 		s->def = g_strdup(def);
+	} else {
+		s->flags |= SET_NULL_OK;
 	}
 
 	s->eval = eval;
-- 
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