diff --git a/games/allacrost/Makefile b/games/allacrost/Makefile
index 2fbf79b0ff3f..a66c1e731041 100644
--- a/games/allacrost/Makefile
+++ b/games/allacrost/Makefile
@@ -1,56 +1,58 @@
 PORTNAME=	allacrost
 PORTVERSION=	1.0.2
 PORTREVISION=	33
 CATEGORIES=	games
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}-demo/${PORTVERSION}
 DISTNAME=	${PORTNAME}_demo_source_${PORTVERSION}
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Single player 2D role-playing game
 WWW=		https://web.archive.org/web/20201126135328/http://allacrost.org/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+BROKEN=		uses incompatible C++ features from different C++ standards that can't be built together due to feature deprecation restrictions
+
 LIB_DEPENDS=	libpng.so:graphics/png \
 		libogg.so:audio/libogg \
 		libvorbis.so:audio/libvorbis \
 		libboost_thread.so:devel/boost-libs
 
 GNU_CONFIGURE=	yes
 USES=		gettext gl gmake iconv jpeg localbase lua:51 openal:al sdl xorg
 USE_SDL=	sdl ttf net
 USE_GL=		gl glu
 USE_XORG=	x11
 USE_CXXSTD=	c++98
 
 CONFIGURE_ARGS=	--datadir=${DATADIR} --enable-editor=no
 CPPFLAGS+=	-isystem${LUA_INCDIR}
 LDFLAGS+=	-L${LUA_LIBDIR}
 LDFLAGS_i386=	-Wl,-znotext
 
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 
 PORTDOCS=	*
 PORTDATA=	*
 
 OPTIONS_DEFINE=	DOCS
 OPTIONS_SUB=	yes
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|-I/usr/include/|-I${LOCALBASE}/include/|g' \
 		${WRKSRC}/Makefile.in
 	@${REINPLACE_CMD} -e 's|exit -1|exit 1|; /CXXFLAGS=/ d; \
 		s|-lSDL |`${SDL_CONFIG} --libs` |' ${WRKSRC}/configure
 	@${REINPLACE_CMD} -e '/^LIBS =/ s|$$| @INTLLIBS@|' ${WRKSRC}/Makefile.in
 	@${REINPLACE_CMD} -e '/^bindir = / s|games|bin|' ${WRKSRC}/Makefile.in
 	@${REINPLACE_CMD} -e '/qt4_incdirs/ s|".*"|"${QT_INCDIR}"|; \
 		/qt4_libdirs/ s|".*"|"${QT_LIBDIR}"|; /test/ s|==|=| ; \
 		s/-llua /-llua-${LUA_VER} /g;' \
 		${WRKSRC}/configure
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/MANUAL ${STAGEDIR}${DOCSDIR}/
 
 .include <bsd.port.mk>