diff --git a/lang/gprolog/Makefile b/lang/gprolog/Makefile
index b64264590893..23b36be91163 100644
--- a/lang/gprolog/Makefile
+++ b/lang/gprolog/Makefile
@@ -1,40 +1,42 @@
 # Created by: Douglas Anestad <yotta@dougdidit.com>
 
 PORTNAME=	gprolog
 PORTVERSION=	1.4.5
 CATEGORIES=	lang
 MASTER_SITES=	http://www.gprolog.org/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Free Prolog compiler
 
 LICENSE=	GPLv2
 
 ONLY_FOR_ARCHS=	amd64 i386
 
+BROKEN=		does not build: error trying to execute   -o: No such file or directory
+
 USES=		gmake
 CFLAGS+=	-DUSE_LOCKS=1 -DUSE_RECURSIVE_LOCKS=1 -DUSE_SPIN_LOCKS=0 \
 		-DMMAP_CLEARS=0 -DNO_MACHINE_REG_FOR_REG_BANK
 
 PLIST_SUB=	GPROLOG_VER=${PORTVERSION}
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-c-flags="${CFLAGS}" \
 		--with-doc-dir="${DOCSDIR}" \
 		--with-examples-dir="${EXAMPLESDIR}"
 CONFIGURE_TARGET=	${ARCH:S/amd64/x86_64/}-portbld-${OPSYS:tl}${OSREL}
 MAKE_JOBS_UNSAFE=	yes
 WRKSRC_SUBDIR=	src
 
 OPTIONS_DEFINE=		FD DOCS EXAMPLES
 OPTIONS_DEFAULT=	FD
 OPTIONS_SUB=		yes
 
 FD_DESC=		Enable finite domain constraint solver
 FD_CONFIGURE_OFF=	--disable-fd-solver
 
 post-patch:
 	@${REINPLACE_CMD} \
 		'/LINKS_DIR/s|$$(INSTALL_DIR)|../${PORTNAME}-${PORTVERSION}|' \
 		${WRKSRC}/Makefile.in
 
 .include <bsd.port.mk>