diff --git a/jni/libsndfile-1.0.25/tests/external_libs_test.c b/jni/libsndfile-1.0.25/tests/external_libs_test.c
new file mode 100644
index 0000000..86b0290
--- /dev/null
+++ b/jni/libsndfile-1.0.25/tests/external_libs_test.c
@@ -0,0 +1,149 @@
+/*
+** Copyright (C) 2008-2011 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include "sfconfig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <sndfile.h>
+
+#include "utils.h"
+
+static void major_format_test (void) ;
+static void subtype_format_test (void) ;
+static void simple_format_test (void) ;
+
+int
+main (void)
+{
+	major_format_test () ;
+	subtype_format_test () ;
+	simple_format_test () ;
+
+	return 0 ;
+} /* main */
+
+static void
+major_format_test (void)
+{	SF_FORMAT_INFO	info ;
+	int have_ogg = 0, have_flac = 0 ;
+	int m, major_count ;
+
+	print_test_name (__func__, NULL) ;
+
+	sf_command (NULL, SFC_GET_FORMAT_MAJOR_COUNT, &major_count, sizeof (int)) ;
+
+	for (m = 0 ; m < major_count ; m++)
+	{	info.format = m ;
+		sf_command (NULL, SFC_GET_FORMAT_MAJOR, &info, sizeof (info)) ;
+
+		have_flac = info.format == SF_FORMAT_FLAC ? 1 : have_flac ;
+		have_ogg = info.format == SF_FORMAT_OGG ? 1 : have_ogg ;
+		} ;
+
+	if (HAVE_EXTERNAL_LIBS)
+	{	exit_if_true (have_flac == 0, "\n\nLine %d : FLAC should be available.\n\n", __LINE__) ;
+		exit_if_true (have_ogg == 0, "\n\nLine %d : Ogg/Vorbis should be available.\n\n", __LINE__) ;
+		}
+	else
+	{	exit_if_true (have_flac, "\n\nLine %d : FLAC should not be available.\n\n", __LINE__) ;
+		exit_if_true (have_ogg, "\n\nLine %d : Ogg/Vorbis should not be available.\n\n", __LINE__) ;
+		} ;
+
+	puts ("ok") ;
+} /* major_format_test */
+
+static void
+subtype_format_test (void)
+{	SF_FORMAT_INFO	info ;
+	int have_vorbis = 0 ;
+	int s, subtype_count ;
+
+	print_test_name (__func__, NULL) ;
+
+	sf_command (NULL, SFC_GET_FORMAT_SUBTYPE_COUNT, &subtype_count, sizeof (int)) ;
+
+	for (s = 0 ; s < subtype_count ; s++)
+	{	info.format = s ;
+		sf_command (NULL, SFC_GET_FORMAT_SUBTYPE, &info, sizeof (info)) ;
+
+		have_vorbis = info.format == SF_FORMAT_VORBIS ? 1 : have_vorbis ;
+		} ;
+
+	if (HAVE_EXTERNAL_LIBS)
+		exit_if_true (have_vorbis == 0, "\n\nLine %d : Ogg/Vorbis should be available.\n\n", __LINE__) ;
+	else
+		exit_if_true (have_vorbis, "\n\nLine %d : Ogg/Vorbis should not be available.\n\n", __LINE__) ;
+
+	puts ("ok") ;
+} /* subtype_format_test */
+
+static void
+simple_format_test (void)
+{	SF_FORMAT_INFO	info ;
+	int have_flac = 0, have_ogg = 0, have_vorbis = 0 ;
+	int s, simple_count ;
+
+	print_test_name (__func__, NULL) ;
+
+	sf_command (NULL, SFC_GET_SIMPLE_FORMAT_COUNT, &simple_count, sizeof (int)) ;
+
+	for (s = 0 ; s < simple_count ; s++)
+	{	info.format = s ;
+		sf_command (NULL, SFC_GET_SIMPLE_FORMAT, &info, sizeof (info)) ;
+
+		switch (info.format & SF_FORMAT_TYPEMASK)
+		{	case SF_FORMAT_FLAC :
+				have_flac = 1 ;
+				break ;
+
+			case SF_FORMAT_OGG :
+				have_ogg = 1 ;
+				break ;
+
+			default :
+				break ;
+			} ;
+
+		switch (info.format & SF_FORMAT_SUBMASK)
+		{	case SF_FORMAT_VORBIS :
+				have_vorbis = 1 ;
+				break ;
+
+			default :
+				break ;
+			} ;
+
+		} ;
+
+	if (HAVE_EXTERNAL_LIBS)
+	{	exit_if_true (have_flac == 0, "\n\nLine %d : FLAC should be available.\n\n", __LINE__) ;
+		exit_if_true (have_ogg == 0, "\n\nLine %d : Ogg/Vorbis should be available.\n\n", __LINE__) ;
+		exit_if_true (have_vorbis == 0, "\n\nLine %d : Ogg/Vorbis should be available.\n\n", __LINE__) ;
+		}
+	else
+	{	exit_if_true (have_flac, "\n\nLine %d : FLAC should not be available.\n\n", __LINE__) ;
+		exit_if_true (have_ogg, "\n\nLine %d : Ogg/Vorbis should not be available.\n\n", __LINE__) ;
+		exit_if_true (have_vorbis, "\n\nLine %d : Ogg/Vorbis should not be available.\n\n", __LINE__) ;
+		} ;
+
+	puts ("ok") ;
+} /* simple_format_test */