new audio engine backend for native CoreAudio audio I/O, and PortMIDI for MIDI.

Code builds, runs and functions. Full code review still pending, and some possibly changes to organization of code within the backend is possible

libs/backends/wavesaudio/wavesapi/wavespublicapi/WTErr.h

@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2013 Waves Audio Ltd.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+// \file WTErr.h, defines basic error type and "No Error" code
+// All users may use their own error codes with this type, as long as eNoErr remains defined here
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+#ifndef __WTErr_h__
+#define __WTErr_h__
+
+/* Copy to include:
+#include "WavesPublicAPI/WTErr.h"
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "WavesPublicAPI/wstdint.h"
+
+typedef int32_t	WTErr; // Waves Type Error
+const WTErr eNoErr =  0;
+
+
+#ifdef __cplusplus
+} //extern "C" {
+#endif
+
+#endif // __WTErr_h__
+