Update FLAC to 1.3.1

include/FLAC/export.h

 /* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2014  Xiph.Org Foundation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * - Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
  * - Redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
  *  This module contains #defines and symbols for exporting function
  *  calls, and providing version information and compiled-in features.
  *
  *  If you are compiling with MSVC and will link to the static library
  *  (libFLAC.lib) you should define FLAC__NO_DLL in your project to
  *  make sure the symbols are exported properly.
  *
  * \{
  */
 
-#if defined(FLAC__NO_DLL) || !defined(_MSC_VER)
+#if defined(FLAC__NO_DLL)
 #define FLAC_API
 
+#elif defined(_MSC_VER)
+#ifdef FLAC_API_EXPORTS
+#define FLAC_API __declspec(dllexport)
 #else
+#define FLAC_API __declspec(dllimport)
+#endif
 
-#ifdef FLAC_API_EXPORTS
-#define FLAC_API        _declspec(dllexport)
+#elif defined(FLAC__USE_VISIBILITY_ATTR)
+#define FLAC_API __attribute__ ((visibility ("default")))
+
 #else
-#define FLAC_API        _declspec(dllimport)
+#define FLAC_API
 
 #endif
-#endif
 
 /** These #defines will mirror the libtool-based library version number, see
- * http://www.gnu.org/software/libtool/manual.html#Libtool-versioning
+ * http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
  */
-#define FLAC_API_VERSION_CURRENT 10
+#define FLAC_API_VERSION_CURRENT 11
 #define FLAC_API_VERSION_REVISION 0 /**< see above */
-#define FLAC_API_VERSION_AGE 2 /**< see above */
+#define FLAC_API_VERSION_AGE 3 /**< see above */
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
 extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
 
 #ifdef __cplusplus
 }
 #endif
 
 /* \} */
 
 #endif