diff --git a/devel/libg++/Makefile b/devel/libg++/Makefile
index e296a56ac566..698210379450 100644
--- a/devel/libg++/Makefile
+++ b/devel/libg++/Makefile
@@ -31,4 +31,10 @@ PLIST_SUB=	GCC28SUBDIR=${GCC28DIR}
 pre-configure:
 	@${CP} -p ${FILESDIR}/Makefile.libg++ ${WRKSRC}/Makefile
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} >= 800000
+BROKEN=		does not build
+.endif
+
+.include <bsd.port.post.mk>
diff --git a/net/ipex/Makefile b/net/ipex/Makefile
index 205b2e6d7f4d..c91bab5f04c8 100644
--- a/net/ipex/Makefile
+++ b/net/ipex/Makefile
@@ -24,4 +24,10 @@ do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/ipex ${PREFIX}/bin/ipex
 	${INSTALL_MAN} ${WRKSRC}/doc/ipex.1.gz ${MANPREFIX}/man/man1/ipex.1.gz
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} >= 800000
+BROKEN=		does not build
+.endif
+
+.include <bsd.port.post.mk>
diff --git a/sysutils/lsof/Makefile b/sysutils/lsof/Makefile
index 0b7cfa1117a5..985ea4343e87 100644
--- a/sysutils/lsof/Makefile
+++ b/sysutils/lsof/Makefile
@@ -99,6 +99,8 @@ pre-configure:
 	@${ECHO} "************************************************************"
 	@${ECHO} ""
 .endif
+.elif ${OSVERSION} >= 800000
+BROKEN=	does not build
 .endif
 
 post-install: