---- a/src/format_flac.c
-+++ b/src/format_flac.c
-@@ -18,7 +18,7 @@
- #endif
-
- #include <stdlib.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include <string.h>
-
- typedef struct source_tag source_t;
---- a/src/format_midi.c
-+++ b/src/format_midi.c
-@@ -18,7 +18,7 @@
- #endif
-
- #include <stdlib.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include <string.h>
-
- typedef struct source_tag source_t;
---- a/src/format_ogg.c
-+++ b/src/format_ogg.c
-@@ -24,7 +24,7 @@
- #include <stdlib.h>
- #include <string.h>
-
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
-
- #include "refbuf.h"
- #include "source.h"
---- a/src/format_ogg.h
-+++ b/src/format_ogg.h
-@@ -18,7 +18,7 @@
- #ifndef __FORMAT_OGG_H__
- #define __FORMAT_OGG_H__
-
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include "refbuf.h"
- #include "format.h"
-
---- a/src/format_speex.c
-+++ b/src/format_speex.c
-@@ -18,7 +18,7 @@
- #endif
-
- #include <stdlib.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include <speex/speex_header.h>
-
- typedef struct source_tag source_t;
---- a/src/format_theora.c
-+++ b/src/format_theora.c
-@@ -18,7 +18,7 @@
- #endif
-
- #include <stdlib.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include <theora/theora.h>
-
- typedef struct source_tag source_t;
---- a/src/format_vorbis.c
-+++ b/src/format_vorbis.c
-@@ -18,8 +18,8 @@
- #endif
-
- #include <stdlib.h>
--#include <ogg/ogg.h>
--#include <vorbis/codec.h>
-+#include <tremor/ogg.h>
-+#include <tremor/ivorbiscodec.h>
- #include <memory.h>
- #include <string.h>
-
---- a/src/source.c
-+++ b/src/source.c
-@@ -19,7 +19,7 @@
- #include <stdlib.h>
- #include <string.h>
- #include <sys/types.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #include <errno.h>
-
- #ifndef _WIN32
---- a/src/format_kate.c
-+++ b/src/format_kate.c
-@@ -19,7 +19,7 @@
-
- #include <stdlib.h>
- #include <string.h>
--#include <ogg/ogg.h>
-+#include <tremor/ogg.h>
- #ifdef HAVE_KATE
- #include <kate/oggkate.h>
- #endif
---- a/m4/vorbis.m4
-+++ b/m4/vorbis.m4
-@@ -38,9 +38,9 @@ if test "x$vorbis_prefix" != "x$ogg_pref
- ])
- fi
-
--VORBIS_LIBS="-lvorbis"
--VORBISFILE_LIBS="-lvorbisfile"
--VORBISENC_LIBS="-lvorbisenc"
-+VORBIS_LIBS="-lvorbisidec"
-+VORBISFILE_LIBS="-lvorbisidec"
-+VORBISENC_LIBS="-lvorbisidec"
-
- xt_save_LIBS="$LIBS"
- xt_save_LDFLAGS="$LDFLAGS"
-@@ -58,18 +58,6 @@ AC_TRY_LINK_FUNC(ogg_stream_init, [xt_li
- )
- ])
-
--if test "x$xt_lib_vorbis" = "xok"; then
--#
--# Now check if the installed Vorbis is sufficiently new.
--#
--AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
--#include <vorbis/codec.h>
--#include <vorbis/vorbisenc.h>
-- ], [
--struct ovectl_ratemanage_arg a;
--])],,[xt_lib_vorbis="old version found"])
--AC_MSG_RESULT([$xt_lib_vorbis])
--fi
- CPPFLAGS="$xt_save_CPPFLAGS"
- LIBS="$xt_save_LIBS"
- LDFLAGS="$xt_save_LDFLAGS"
---- a/m4/ogg.m4
-+++ b/m4/ogg.m4
-@@ -29,7 +29,7 @@ XIPH_GCC_WARNING([-I$ogg_prefix/include]
- ])
- AC_CACHE_CHECK([for libogg], xt_cv_lib_ogg,
- [dnl
--OGG_LIBS="-logg"
-+OGG_LIBS="-lvorbisidec"
-
- #
- # check if the installed Ogg is sufficiently new.
-@@ -42,7 +42,7 @@ LIBS="$LIBS $OGG_LIBS"
- LDFLAGS="$LDFLAGS $OGG_LDFLAGS"
- AC_TRY_LINK_FUNC(ogg_sync_init,
- [ xt_cv_lib_ogg=ok ],
-- [ AC_TRY_LINK([#include <ogg/ogg.h>],,
-+ [ AC_TRY_LINK([#include <tremor/ogg.h>],,
- [ xt_cv_lib_ogg="pre v1.0, needs updating" ],
- [ xt_cv_lib_ogg="not found" ])
- ])