# Prevents libsndfile's build system from trying to look for external libraries since Meson already handles that.

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,15 +94,15 @@ endif ()
 
 include(SndFileChecks)
 
-if (ENABLE_EXTERNAL_LIBS AND NOT (Vorbis_FOUND OR FLAC_FOUND OR OPUS_FOUND))
-	set (ENABLE_EXTERNAL_LIBS OFF)
-endif()
-if(ENABLE_MPEG AND (NOT HAVE_MPEG_LIBS))
-	set (ENABLE_MPEG OFF)
-endif()
-if (BUILD_REGTEST AND (NOT SQLITE3_FOUND))
-	set (BUILD_REGTEST OFF)
-endif()
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 cmake_dependent_option (ENABLE_CPU_CLIP "Enable tricky cpu specific clipper" ON "CPU_CLIPS_POSITIVE;CPU_CLIPS_NEGATIVE" OFF)
 if (NOT ENABLE_CPU_CLIP)
@@ -391,13 +391,6 @@ target_include_directories (sndfile
 target_link_libraries (sndfile
 	PRIVATE
 		$<$<BOOL:${LIBM_REQUIRED}>:m>
-		$<$<BOOL:${HAVE_EXTERNAL_XIPH_LIBS}>:Ogg::ogg>
-		$<$<BOOL:${HAVE_EXTERNAL_XIPH_LIBS}>:Vorbis::vorbisenc>
-		$<$<BOOL:${HAVE_EXTERNAL_XIPH_LIBS}>:FLAC::FLAC>
-		$<$<AND:$<BOOL:${ENABLE_EXPERIMENTAL}>,$<BOOL:${HAVE_EXTERNAL_XIPH_LIBS}>,$<BOOL:${HAVE_SPEEX}>>:Speex::Speex>
-		$<$<BOOL:${HAVE_EXTERNAL_XIPH_LIBS}>:Opus::opus>
-		$<$<BOOL:${HAVE_MPEG}>:MPG123::libmpg123>
-		$<$<BOOL:${HAVE_MPEG}>:mp3lame::mp3lame>
 	)
 set_target_properties (sndfile PROPERTIES
 	PUBLIC_HEADER "${sndfile_HDRS}"
--- a/cmake/SndFileChecks.cmake
+++ b/cmake/SndFileChecks.cmake
@@ -16,49 +16,49 @@ if (LARGE_FILES_DEFINITIONS)
 	add_definitions(${LARGE_FILES_DEFINITIONS})
 endif ()
 
-if (CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
-	find_package (Sndio)
-elseif (NOT WIN32)
-	find_package (ALSA)
-endif ()
 
-if (VCPKG_TOOLCHAIN AND (NOT CMAKE_VERSION VERSION_LESS 3.15))
-	set (CMAKE_FIND_PACKAGE_PREFER_CONFIG ON)
-endif ()
 
-if (CMAKE_FIND_PACKAGE_PREFER_CONFIG)
-	find_package (Ogg 1.3 CONFIG)
-	find_package (Vorbis CONFIG COMPONENTS Enc)
-	find_package (FLAC CONFIG)
-	find_package (Opus CONFIG)
-
-	include (FindPackageHandleStandardArgs)
-	find_package_handle_standard_args (Ogg CONFIG_MODE)
-	find_package_handle_standard_args (Vorbis CONFIG_MODE)
-	find_package_handle_standard_args (FLAC CONFIG_MODE)
-	find_package_handle_standard_args (Opus CONFIG_MODE)
-else ()
-	find_package (Ogg 1.3)
-	find_package (Vorbis COMPONENTS Enc)
-	find_package (FLAC)
-	find_package (Opus)
-endif ()
-if (Vorbis_FOUND AND FLAC_FOUND AND Opus_FOUND)
-	set (HAVE_EXTERNAL_XIPH_LIBS 1)
-else ()
-	set (HAVE_EXTERNAL_XIPH_LIBS 0)
-endif ()
 
-find_package (mp3lame)
-find_package (mpg123 1.25.10)
-if (TARGET mp3lame::mp3lame AND (TARGET MPG123::libmpg123))
-	set (HAVE_MPEG_LIBS 1)
-else ()
-	set (HAVE_MPEG_LIBS 0)
-endif()
 
-find_package (Speex)
-find_package (SQLite3)
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 check_include_file (byteswap.h		HAVE_BYTESWAP_H)
 check_include_file (dlfcn.h			HAVE_DLFCN_H)
--- a/src/flac.c
+++ b/src/flac.c
@@ -31,9 +31,9 @@
 
 #if HAVE_EXTERNAL_XIPH_LIBS
 
-#include	<FLAC/stream_decoder.h>
-#include	<FLAC/stream_encoder.h>
-#include	<FLAC/metadata.h>
+#include	"../flac/include/FLAC/stream_decoder.h"
+#include	"../flac/include/FLAC/stream_encoder.h"
+#include	"../flac/include/FLAC/metadata.h"
 
 /*------------------------------------------------------------------------------
 ** Private static functions.
--- a/src/id3.c
+++ b/src/id3.c
@@ -28,7 +28,7 @@
 #include	"common.h"
 #include	"id3.h"
 
-#if HAVE_MPEG
+#if 0
 #include	<lame/lame.h>
 
 struct id3v1_genre_handler_userdata
--- a/src/mpeg.c
+++ b/src/mpeg.c
@@ -36,10 +36,10 @@ static int	mpeg_command (SF_PRIVATE *psf, int command, void *data, int datasize)
 static int
 mpeg_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
 {
-	if (psf->have_written)
+
 		return 0 ;
 
-	return mpeg_l3_encoder_write_id3tag (psf) ;
+
 }
 
 static int
@@ -56,7 +56,7 @@ mpeg_command (SF_PRIVATE *psf, int command, void *data, int datasize)
 			{	psf->error = SFE_NOT_WRITEMODE ;
 				return SF_FALSE ;
 				} ;
-			return mpeg_l3_encoder_set_quality (psf, *(double *) data) ;
+			psf->error = SFE_UNIMPLEMENTED ; return SF_FALSE ;
 
 		case SFC_SET_BITRATE_MODE :
 			if (psf->file.mode != SFM_WRITE)
@@ -67,14 +67,14 @@ mpeg_command (SF_PRIVATE *psf, int command, void *data, int datasize)
 			{	psf->error = SFE_BAD_COMMAND_PARAM ;
 				return SF_FALSE ;
 				} ;
-			bitrate_mode = *(int *) data ;
-			return mpeg_l3_encoder_set_bitrate_mode (psf, bitrate_mode) ;
+			psf->error = SFE_UNIMPLEMENTED ;
+			return SF_FALSE ;
 
 		case SFC_GET_BITRATE_MODE :
 			if (psf->file.mode == SFM_READ)
 				return mpeg_decoder_get_bitrate_mode (psf) ;
 			else
-				return mpeg_l3_encoder_get_bitrate_mode (psf) ;
+				{ psf->error = SFE_UNIMPLEMENTED ; return SF_FALSE ; }
 
 		default :
 			return SF_FALSE ;
@@ -97,9 +97,9 @@ mpeg_init (SF_PRIVATE *psf, int bitrate_mode, int write_metadata)
 	if (psf->file.mode == SFM_WRITE)
 	{	switch (SF_CODEC (psf->sf.format))
 		{	case SF_FORMAT_MPEG_LAYER_III :
-				if ((error = mpeg_l3_encoder_init (psf, write_metadata)))
-					return error ;
-				mpeg_l3_encoder_set_bitrate_mode (psf, bitrate_mode) ;
+
+					return SFE_UNIMPLEMENTED ;
+
 				if (write_metadata)
 				{	/* ID3 support */
 					psf->strings.flags = SF_STR_ALLOW_START ;
--- a/src/mpeg_decode.c
+++ b/src/mpeg_decode.c
@@ -30,7 +30,7 @@
 #include	"sfendian.h"
 #include	"id3.h"
 
-#include <mpg123.h>
+#include "../mpg123/src/include/mpg123.h"
 
 typedef struct
 {	mpg123_handle *pmh ;
--- a/src/mpeg_l3_encode.c
+++ b/src/mpeg_l3_encode.c
@@ -23,7 +23,7 @@
 #include	"mpeg.h"
 
 
-#if HAVE_MPEG
+#if 0
 
 #include <lame/lame.h>
 
--- a/src/ogg.c
+++ b/src/ogg.c
@@ -73,7 +73,7 @@
 
 #if HAVE_EXTERNAL_XIPH_LIBS
 
-#include <ogg/ogg.h>
+#include "../ogg/include/ogg/ogg.h"
 
 #include "ogg.h"
 
--- a/src/ogg_opus.c
+++ b/src/ogg_opus.c
@@ -161,9 +161,9 @@
 
 #if HAVE_EXTERNAL_XIPH_LIBS
 
-#include <ogg/ogg.h>
-#include <opus/opus.h>
-#include <opus/opus_multistream.h>
+#include "../ogg/include/ogg/ogg.h"
+#include "../opus/include/opus.h"
+#include "../opus/include/opus_multistream.h"
 
 #include "ogg.h"
 #include "ogg_vcomment.h"
--- a/src/ogg_pcm.c
+++ b/src/ogg_pcm.c
@@ -38,7 +38,7 @@
 
 #if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_XIPH_LIBS)
 
-#include <ogg/ogg.h>
+#include "../ogg/include/ogg/ogg.h"
 
 #include "ogg.h"
 
--- a/src/ogg_speex.c
+++ b/src/ogg_speex.c
@@ -38,12 +38,12 @@
 
 #if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_XIPH_LIBS)
 
-#include <ogg/ogg.h>
+#include "../ogg/include/ogg/ogg.h"
 
-#include <speex/speex.h>
-#include <speex/speex_stereo.h>
-#include <speex/speex_header.h>
-#include <speex/speex_callbacks.h>
+#include "../speex/include/speex/speex.h"
+#include "../speex/include/speex/speex_stereo.h"
+#include "../speex/include/speex/speex_header.h"
+#include "../speex/include/speex/speex_callbacks.h"
 
 #include "ogg.h"
 
--- a/src/ogg_vcomment.c
+++ b/src/ogg_vcomment.c
@@ -29,7 +29,7 @@
 
 #if HAVE_EXTERNAL_XIPH_LIBS
 
-#include <ogg/ogg.h>
+#include "../ogg/include/ogg/ogg.h"
 
 #include "ogg_vcomment.h"
 
--- a/src/ogg_vorbis.c
+++ b/src/ogg_vorbis.c
@@ -73,9 +73,9 @@
 
 #if HAVE_EXTERNAL_XIPH_LIBS
 
-#include <ogg/ogg.h>
-#include <vorbis/codec.h>
-#include <vorbis/vorbisenc.h>
+#include "../ogg/include/ogg/ogg.h"
+#include "../vorbis/include/vorbis/codec.h"
+#include "../vorbis/include/vorbis/vorbisenc.h"
 
 #include "ogg.h"
 
@@ -316,7 +316,7 @@ vorbis_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
 	vorbis_info_init (&vdata->vinfo) ;
 
 	/* The style of encoding should be selectable here, VBR quality mode. */
-	ret = vorbis_encode_init_vbr (&vdata->vinfo, psf->sf.channels, psf->sf.samplerate, vdata->quality) ;
+	ret = -1 ;
 
 #if 0
 	ret = vorbis_encode_init (&vdata->vinfo, psf->sf.channels, psf->sf.samplerate, -1, 128000, -1) ; /* average bitrate mode */