Move all test integration pieces for etc/ from etc/ to tests/

This is being done to fix breakage with make distribution with read-only
source trees as make distribution doesn't use make obj like building
tests/ does in all cases

Reported by: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>
Suggested by: jhb
X-MFC with: r282059
MFC after: 1 week

etc/Makefile

@@ -10,10 +10,6 @@ SUBDIR=	\
 SUBDIR+=sendmail
 .endif
 
-.if ${MK_TESTS} != "no"
-SUBDIR+=tests
-.endif
-
 BIN1=	crontab \
 	devd.conf \
 	devfs.conf \

etc/rc.d/Makefile

@@ -263,10 +263,6 @@ FILES+=		routed
 FILES+=		sendmail
 .endif
 
-.if ${MK_TESTS} != "no"
-SUBDIR+=	tests
-.endif
-
 .if ${MK_TIMED} != "no"
 FILES+=		timed
 .endif

tests/Makefile

@@ -2,6 +2,7 @@
 
 .include <bsd.own.mk>
 
+SUBDIR= etc
 SUBDIR= sys
 
 TESTSDIR= ${TESTSBASE}

tests/etc/Makefile

@@ -4,7 +4,9 @@
 
 TESTSDIR=	${TESTSBASE}/etc
 
-.PATH:		${.CURDIR:H:H}/tests
+.PATH:		${.CURDIR:H}
 KYUAFILE=	yes
 
+SUBDIR+=	rc.d
+
 .include <bsd.test.mk>