Use sndio for audio

--- tools/Makefile.in.orig	Mon Mar 14 23:05:12 2011
+++ tools/Makefile.in	Wed Apr 18 09:13:34 2012
@@ -236,7 +236,8 @@ noinst_HEADERS = wav_io.h
 celtenc_SOURCES = celtenc.c wav_io.c skeleton.c
 celtenc_LDADD = $(top_builddir)/libcelt/libcelt@LIBCELT_SUFFIX@.la $(OGG_LIBS)
 celtdec_SOURCES = celtdec.c wav_io.c
-celtdec_LDADD = $(top_builddir)/libcelt/libcelt@LIBCELT_SUFFIX@.la $(OGG_LIBS)
+celtdec_LDADD = $(top_builddir)/libcelt/libcelt@LIBCELT_SUFFIX@.la $(OGG_LIBS) \
+		-lsndio
 all: all-am
 
 .SUFFIXES: