Don't ever create object directories here with MK_AUTO_OBJ.

Sponsored by:	EMC / Isilon Storage Division

Makefile

@@ -146,7 +146,7 @@ TGTS+=	${BITGTS}
 
 PATH=	/sbin:/bin:/usr/sbin:/usr/bin
 MAKEOBJDIRPREFIX?=	/usr/obj
-_MAKEOBJDIRPREFIX!= /usr/bin/env -i PATH=${PATH} ${MAKE} \
+_MAKEOBJDIRPREFIX!= /usr/bin/env -i PATH=${PATH} MK_AUTO_OBJ=no ${MAKE} \
     ${.MAKEFLAGS:MMAKEOBJDIRPREFIX=*} __MAKE_CONF=${__MAKE_CONF} \
     -f /dev/null -V MAKEOBJDIRPREFIX dummy
 .if !empty(_MAKEOBJDIRPREFIX)

Makefile.inc1

@@ -179,9 +179,9 @@ OSRELDATE=	0
 .endif
 
 # Set VERSION for CTFMERGE to use via the default CTFFLAGS=-L VERSION.
-.if !defined(VERSION) && !make(showconfig)
-REVISION!=	${MAKE} -C ${SRCDIR}/release -V REVISION
-BRANCH!=	${MAKE} -C ${SRCDIR}/release -V BRANCH
+.if !defined(VERSION)
+REVISION!=	MK_AUTO_OBJ=no ${MAKE} -C ${SRCDIR}/release -V REVISION
+BRANCH!=	MK_AUTO_OBJ=no ${MAKE} -C ${SRCDIR}/release -V BRANCH
 SRCRELDATE!=	awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
 		${SRCDIR}/sys/sys/param.h
 VERSION=	FreeBSD ${REVISION}-${BRANCH:C/-p[0-9]+$//} ${TARGET_ARCH} ${SRCRELDATE}
@@ -229,14 +229,11 @@ _TARGET_CPUTYPE=${TARGET_CPUTYPE}
 .else
 _TARGET_CPUTYPE=dummy
 .endif
-# Skip for showconfig as it is just wasted time and may invoke auto.obj.mk.
-.if !make(showconfig)
-_CPUTYPE!=	MAKEFLAGS= CPUTYPE=${_TARGET_CPUTYPE} ${MAKE} \
+_CPUTYPE!=	MK_AUTO_OBJ=no MAKEFLAGS= CPUTYPE=${_TARGET_CPUTYPE} ${MAKE} \
 		-f /dev/null -m ${.CURDIR}/share/mk -V CPUTYPE
 .if ${_CPUTYPE} != ${_TARGET_CPUTYPE}
 .error CPUTYPE global should be set with ?=.
 .endif
-.endif
 .if make(buildworld)
 BUILD_ARCH!=	uname -p
 .if ${MACHINE_ARCH} != ${BUILD_ARCH}