From 154b98e876256310b3832334695094487da6ea3a Mon Sep 17 00:00:00 2001
From: Stavros Aronis <aronisstav@gmail.com>
Date: Thu, 22 Mar 2012 10:18:57 +0100
Subject: Report only actual unknown types otherwise no message is sent

---
 lib/dialyzer/src/dialyzer_analysis_callgraph.erl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib/dialyzer/src/dialyzer_analysis_callgraph.erl')

diff --git a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
index 5be870d78f..b6dbfdfacf 100644
--- a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
+++ b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
@@ -463,8 +463,10 @@ default_includes(Dir) ->
 rcv_and_send_ext_types(Parent) ->
   Self = self(),
   Self ! {Self, done},
-  ExtTypes = rcv_ext_types(Self, []),
-  Parent ! {Self, ext_types, ExtTypes},
+  case rcv_ext_types(Self, []) of
+    [] -> ok;
+    ExtTypes -> Parent ! {Self, ext_types, ExtTypes}
+  end,
   ok.
 
 rcv_ext_types(Self, ExtTypes) ->
-- 
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