From 7c0d78d164cbce489cea672f110a4f3f96515ea1 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Mon, 18 Mar 2013 21:03:18 +0100
Subject: Fix compiler warnings.

---
 src/audioinputengine.h  | 2 ++
 src/audiooutputengine.h | 2 ++
 src/events.h            | 2 ++
 3 files changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/audioinputengine.h b/src/audioinputengine.h
index c17b964..c2d2e24 100644
--- a/src/audioinputengine.h
+++ b/src/audioinputengine.h
@@ -35,6 +35,8 @@
 
 class AudioInputEngine {
 public:
+  virtual ~AudioInputEngine() {}
+
   virtual bool init(Instruments &instruments) = 0;
 
   virtual void setParm(std::string parm, std::string value) = 0;
diff --git a/src/audiooutputengine.h b/src/audiooutputengine.h
index d2d2310..8b2b768 100644
--- a/src/audiooutputengine.h
+++ b/src/audiooutputengine.h
@@ -35,6 +35,8 @@
 
 class AudioOutputEngine {
 public:
+  virtual ~AudioOutputEngine() {}
+
   virtual bool init(Channels channels) = 0;
 
   virtual void setParm(std::string parm, std::string value) = 0;
diff --git a/src/events.h b/src/events.h
index 29cad22..a4adcee 100644
--- a/src/events.h
+++ b/src/events.h
@@ -40,6 +40,8 @@ typedef unsigned int timepos_t;
 
 class Event {
 public:
+  virtual ~Event() {}
+
   typedef enum {
     sample
   } type_t;
-- 
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