Index: head/lib/libproc/tests/Makefile
===================================================================
--- head/lib/libproc/tests/Makefile	(revision 315037)
+++ head/lib/libproc/tests/Makefile	(revision 315038)
@@ -1,15 +1,16 @@
 # $FreeBSD$
 
 ATF_TESTS_C+=	proc_test
 
 PROGS=		target_prog
 SRCS_target_prog=	target_prog.c
 BINDIR_target_prog=	${TESTSDIR}
 
+WARNS?=		6
 LIBADD=	elf proc rtld_db util
 
 # Ensure that symbols aren't stripped from the test program, as they're needed
 # for testing symbol lookup.
 STRIP=
 
 .include <bsd.test.mk>