Index: Makefile
===================================================================
RCS file: /home/pcvs/ports/textproc/libtre/Makefile,v
retrieving revision 1.50
diff -d -u -u -r1.50 Makefile
--- Makefile	2 Aug 2009 19:35:48 -0000	1.50
+++ Makefile	22 Nov 2009 20:43:35 -0000
@@ -33,6 +33,13 @@
 
 .include <bsd.port.pre.mk>
 
+# Around the time GCC stack protection (aka Propolice) for userland
+# was enabled on src/share/mk/bsd.sys.mk
+# SVN rev 180012 on 2008-06-25 21:33:28Z by ru
+.if ${OSVERSION} >= 800040
+LDFLAGS+=	-fstack-protector
+.endif
+
 .if defined(WITH_NLS)
 USE_GETTEXT=	yes
 PLIST_SUB+=	NLS=""