--- /dev/null
+We don't have opus in OE-Core which causes all the external libs to be disabled
+silently. The silent issue is discussed in the link below and hints a patch
+to make things configurable may be accepted.
+
+This patch removing the opus piece at least gets most of the functionality
+we previously used back whilst the issue is discussed.
+
+Upstream-Status: Pending [https://github.com/libsndfile/libsndfile/pull/812]
+
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: libsndfile-1.0.31/configure.ac
+===================================================================
+--- libsndfile-1.0.31.orig/configure.ac
++++ libsndfile-1.0.31/configure.ac
+@@ -361,13 +361,13 @@ AS_IF([test -n "$PKG_CONFIG"], [
+ enable_external_libs=yes
+ ])
+
+- AS_IF([test "x$ac_cv_flac$ac_cv_ogg$ac_cv_vorbis$ac_cv_vorbisenc$ac_cv_opus" = "xyesyesyesyesyes"], [
++ AS_IF([test "x$ac_cv_flac$ac_cv_ogg$ac_cv_vorbis$ac_cv_vorbisenc" = "xyesyesyesyes"], [
+ HAVE_EXTERNAL_XIPH_LIBS=1
+ enable_external_libs=yes
+
+- EXTERNAL_XIPH_CFLAGS="$FLAC_CFLAGS $VORBIS_CFLAGS $VORBISENC_CFLAGS $SPEEX_CFLAGS $OPUS_CFLAGS $OGG_CFLAGS "
+- EXTERNAL_XIPH_LIBS="$FLAC_LIBS $VORBIS_LIBS $VORBISENC_LIBS $SPEEX_LIBS $OPUS_LIBS $OGG_LIBS "
+- EXTERNAL_XIPH_REQUIRE="flac ogg vorbis vorbisenc opus"
++ EXTERNAL_XIPH_CFLAGS="$FLAC_CFLAGS $VORBIS_CFLAGS $VORBISENC_CFLAGS $SPEEX_CFLAGS $OGG_CFLAGS "
++ EXTERNAL_XIPH_LIBS="$FLAC_LIBS $VORBIS_LIBS $VORBISENC_LIBS $SPEEX_LIBS $OGG_LIBS "
++ EXTERNAL_XIPH_REQUIRE="flac ogg vorbis vorbisenc"
+
+ if test x$ac_cv_speex = "xyes" ; then
+ EXTERNAL_XIPH_REQUIRE="$EXTERNAL_XIPH_REQUIRE speex"
+@@ -716,7 +716,7 @@ AC_MSG_RESULT([
+
+ Experimental code : ................... ${enable_experimental:-no}
+ Using ALSA in example programs : ...... ${enable_alsa:-no}
+- External FLAC/Ogg/Vorbis/Opus : ....... ${enable_external_libs:-no}
++ External FLAC/Ogg/Vorbis : ....... ${enable_external_libs:-no}
+ Building Octave interface : ........... ${OCTAVE_BUILD}
+
+ Tools :
+Index: libsndfile-1.0.31/src/ogg_opus.c
+===================================================================
+--- libsndfile-1.0.31.orig/src/ogg_opus.c
++++ libsndfile-1.0.31/src/ogg_opus.c
+@@ -159,7 +159,7 @@
+ #include "sfendian.h"
+ #include "common.h"
+
+-#if HAVE_EXTERNAL_XIPH_LIBS
++#if 0
+
+ #include <ogg/ogg.h>
+ #include <opus/opus.h>