Initial commit

added libraries:
opus
flac
libsndfile

updated:
libvorbis
libogg
openal

- Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.

Engine/lib/libsndfile/src/test_binheader_writef.c

@@ -0,0 +1,61 @@
+/*
+** Copyright (C) 2017 Erik de Castro Lopo <erikd@mega-nerd.com>
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include "sfconfig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+
+#include "common.h"
+
+#include "test_main.h"
+
+void
+test_binheader_writef (void)
+{	char buffer [18] ;
+	SF_PRIVATE	sf_private, *psf ;
+	int			k, errors = 0 ;
+
+	print_test_name ("Testing binheader_writef") ;
+
+	memset (&sf_private, 0, sizeof (sf_private)) ;
+
+	psf = &sf_private ;
+	for (k = 0 ; errors == 0 && k < 10 ; k++)
+	{	psf_strlcpy (buffer, sizeof (buffer), "abcdefghijklmnop") ;
+		buffer [k] = 0 ;
+
+		psf_binheader_writef (psf, "Ep", BHWp (buffer)) ;
+
+		if ((psf->header.indx & 1) != 0)
+			errors = 1 ;
+		} ;
+
+	free (psf->header.ptr) ;
+
+	if (errors)
+	{	puts ("\nExiting due to errors.\n") ;
+		exit (1) ;
+		} ;
+
+	puts ("ok") ;
+} /* test_log_printf */
+