Set up the /usr/tests hierarchy.

This is a MFC of the following into stable/10:
- r257097 Set up the /usr/tests hierarchy.
- r257098 Add missing WITHOUTTESTS file.
- r257100 Add a tests(7) manual page.
- r257105 Disable WITHTESTS= for now.
- r257848 Fix buildworld when WITHTESTS is enabled.
- r257850 Subsume the functionality of MKATF into MKTESTS.
- r257851 Handle the removal of the test suite when WITHOUTTESTS=yes.
- r257852 Install category Kyuafiles from their category directories.
- r258232 Install BSD.tests.mtree when MKTESTS is yes.

Note that building with WITH_TESTS is still broken at this point (and
hence why WITHOUT_TESTS is the set as the default).  Subsequent pullups
will fix the remaining issues.

1 files changed, 4 insertions, 4 deletions

diff --git a/libexec/Makefile b/libexec/Makefile
index 0b9c9618a1b7..576335f2d2fd 100644
--- a/libexec/Makefile
+++ b/libexec/Makefile
@@ -33,10 +33,6 @@ SUBDIR=	${_atf} \
 	ulog-helper \
 	${_ypxfr}
 
-.if ${MK_ATF} != "no"
-_atf=		atf
-.endif
-
 .if ${MK_AT} != "no"
 _atrun=		atrun
 .endif
@@ -76,4 +72,8 @@ _smrsh=		smrsh
 _telnetd=	telnetd
 .endif
 
+.if ${MK_TESTS} != "no"
+_atf=		atf
+.endif
+
 .include <bsd.subdir.mk>