Set USES=localbase instead of CPPFLAGS and LIBS

Approved by:	portmgr (blanket, infrastructure changes)

Author: 0mp

x11/xterm/Makefile

@@ -16,7 +16,7 @@ COMMENT=	Terminal emulator for the X Window System
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		cpe ncurses tar:tgz xorg
+USES=		cpe localbase ncurses tar:tgz xorg
 USE_XORG=	xft xmu xt x11 xext xpm ice
 
 GNU_CONFIGURE=	yes
@@ -27,9 +27,6 @@ CONFIGURE_ARGS+=	--with-utempter --enable-narrowproto
 
 CONFLICTS=	x11iraf-[0-9]*
 
-CPPFLAGS+=	-I${LOCALBASE}/include
-LIBS+=		-L${LOCALBASE}/lib
-
 ICONVERSION=	1
 
 OPTIONS_DEFINE=	WCHAR LUIT DECTERM PCRE DABBREV 256COLOR SIXEL GNOME LOGGING \