Index: Makefile
===================================================================
--- Makefile	(revision 421408)
+++ Makefile	(working copy)
@@ -14,17 +14,24 @@
 
 LIB_DEPENDS=	libltdl.so:devel/libltdl
 
-USES=		tar:bzip2 gmake libtool pathfix
+USES=		tar:bzip2 gmake libtool localbase pathfix
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-optimization=0 \
-		--with-audio=oss \
-		--with-default-audio=oss \
 		--with-module-suffix=.so
-CPPFLAGS+=	-I${LOCALBASE}/include
-LDFLAGS+=	-L${LOCALBASE}/lib
 
+INSTALL_TARGET=	install-strip
+
+OPTIONS_DEFINE=	SNDIO
+OPTIONS_SUB=	yes
+
+SNDIO_CONFIGURE_ON=	--with-audio=sndio,oss \
+			--with-default-audio=sndio
+SNDIO_CONFIGURE_OFF=	--with-audio=oss \
+			--with-default-audio=oss
+SNDIO_LIB_DEPENDS=	libsndio.so:audio/sndio
+
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} == "i386"
Index: pkg-plist
===================================================================
--- pkg-plist	(revision 421408)
+++ pkg-plist	(working copy)
@@ -13,6 +13,7 @@
 lib/libout123.so.0.1.4
 lib/mpg123/output_dummy.so
 lib/mpg123/output_oss.so
+%%SNDIO%%lib/mpg123/output_sndio.so
 libdata/pkgconfig/libmpg123.pc
 libdata/pkgconfig/libout123.pc
 man/man1/out123.1.gz