Index: head/math/gambit/Makefile
===================================================================
--- head/math/gambit/Makefile	(revision 537000)
+++ head/math/gambit/Makefile	(revision 537001)
@@ -1,29 +1,31 @@
 # Created by: ijliao
 # $FreeBSD$
 
 PORTNAME=	gambit
 DISTVERSION=	16.0.1
 PORTREVISION=	4
 CATEGORIES=	math
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}${PORTVERSION:R:R}/${PORTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Library of tools for doing computation in game theory
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+BROKEN_FreeBSD_12_powerpc64=	fails to compile: ./library/include/gambit/shared_ptr.h:137:37: no matching function for call to 'swap(long int*&, long int* const&)'
+
 USES=		compiler:c++11-lib gnome
 GNU_CONFIGURE=	yes
 USE_GNOME=	gtk20
 USE_WX=		3.0
 USE_CXXSTD=	c++11
 WX_CONF_ARGS=	absolute
 
 post-install:
 	${INSTALL_DATA} ${WRKSRC}/gambit.desktop \
 		${STAGEDIR}${PREFIX}/share/applications
 	${INSTALL_DATA} ${WRKSRC}/src/gui/bitmaps/gambit.xpm \
 		${STAGEDIR}${PREFIX}/share/pixmaps
 
 .include <bsd.port.mk>