Sphinxbase works perfectly fine with byacc, remove useless dependency on bison

While here add USES=localbase

audio/sphinxbase/Makefile

@@ -10,15 +10,12 @@ MASTER_SITES=	SF/cmusphinx/${PORTNAME}/${PORTVERSION}
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	CMU Sphinx Speech recognition system base
 
-USES=		bison gmake pathfix libtool
+USES=		bison:alias gmake pathfix libtool localbase
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS+=	--without-python --without-lapack
 CONFIGURE_ENV+=	HAVE_DOXYGEN=no
 USE_LDCONFIG=	yes
 
-CPPFLAGS+=	-I${LOCALBASE}/include
-LDFLAGS+=	-L${LOCALBASE}/lib
-
 MAKE_ENV=	MKDIR="${MKDIR}" \
 		OSVERSION=${OSVERSION}