Index: head/dns/powerdns-recursor/Makefile
===================================================================
--- head/dns/powerdns-recursor/Makefile
+++ head/dns/powerdns-recursor/Makefile
@@ -58,4 +58,10 @@
 
 SUB_FILES=	pkg-message
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} < 1003506
+IGNORE=		no _cxa_thread_atexit() support in FreeBSD libc < 10.4
+.endif
+
+.include <bsd.port.post.mk>