diff -ruN net/tightvnc.orig/Makefile net/tightvnc/Makefile
--- net/tightvnc.orig/Makefile	2009-08-22 03:31:46.000000000 +0300
+++ net/tightvnc/Makefile	2009-12-05 14:32:16.223357558 +0200
@@ -15,6 +15,7 @@
 
 MAINTAINER=	itetcu@FreeBSD.org
 COMMENT=	Enhanced version of VNC
+MAKE_JOBS_UNSAFE=	yes
 
 LIB_DEPENDS=	jpeg.10:${PORTSDIR}/graphics/jpeg
 RUN_DEPENDS=	showrgb:${PORTSDIR}/x11/rgb \