java/jikes: Fix build with llvm16

- Pet portclippy

Sponsored by:	The FreeBSD Foundation

java/jikes/Makefile

@@ -8,13 +8,18 @@ MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Java source to byte-code compiler made available by IBM
 WWW=		http://jikes.sf.net/
 
-PLIST_SUB=	PORTVERSION=${PORTVERSION}
+USES=		autoreconf gmake iconv localbase tar:bzip2
+
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	ac_cv_search_iconv=${ICONV_LIB} \
 		ac_cv_search_libiconv_open=no
-USES=		autoreconf iconv gmake tar:bzip2
 
-CPPFLAGS+=	-I${LOCALBASE}/include
-LIBS+=		-L${LOCALBASE}/lib
+PLIST_SUB=	PORTVERSION=${PORTVERSION}
+
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400091
+CPPFLAGS+=  -Dregister=
+.endif
 
 .include <bsd.port.mk>