From fe662c1a0a3f373b06c166a27a496185f7f32699 Mon Sep 17 00:00:00 2001
From: Evgeniy Khramtsov <ekhramtsov@process-one.net>
Date: Mon, 1 May 2017 10:14:00 +0300
Subject: [PATCH] Don't forget to delete digraph

---
 src/gen_mod.erl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gen_mod.erl b/src/gen_mod.erl
index 44e890e2f..f0ece7ceb 100644
--- a/src/gen_mod.erl
+++ b/src/gen_mod.erl
@@ -159,7 +159,9 @@ sort_modules(Host, ModOpts) ->
 			end
 		end, Deps)
       end, ModOpts),
-    [digraph:vertex(G, V) || V <- digraph_utils:topsort(G)].
+    Result = [digraph:vertex(G, V) || V <- digraph_utils:topsort(G)],
+    digraph:delete(G),
+    Result.
 
 -spec start_modules(binary()) -> ok.