Index: head/lib/csu/Makefile
===================================================================
--- head/lib/csu/Makefile	(revision 339743)
+++ head/lib/csu/Makefile	(revision 339744)
@@ -1,15 +1,17 @@
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 .if exists(${.CURDIR}/${MACHINE_ARCH})
 SUBDIR+= ${MACHINE_ARCH}
 .else
 SUBDIR+= ${MACHINE_CPUARCH}
 .endif
 
 .if ${MACHINE_ARCH} == "aarch64" || ${MACHINE_ARCH} == "amd64" || \
     ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "powerpc64"
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 .endif
 
 .include <bsd.subdir.mk>