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Revision 1.195, Thu Jan 2 23:15:27 2003 UTC (11 years, 7 months ago) by atatat
Branch: MAIN
Changes since 1.194: +23 -1 lines

The obj target for src/etc is invoked too early for it to function
properly in a clean tree (bsd.subdir.mk makes the obj target in
.CURDIR depend on the recursive targets).  If "make obj" is invoked a
second time, the problem will correct itself.  To work around this:

(1) Before including bsd.subdir.mk, create a target called "obj-etc"
so that the "regular" one (from bsd.subdir.mk) won't be instantiated.

(2) After including bsd.obj.mk, create a "real" obj-etc target that
does the required work with .USE as a "source" so that we can merely
cons it onto the actual obj target.  Note that this is only done if
the obj target has commands (ie, NOOBJ was not set and MKOBJ was not
no and whatever else you might have come up with) and we would have
recursed into etc anyway (etc is in the SUBDIR list).

This makes the obj target in src/etc get invoked *after* the obj
target in the root of the source tree so that KERNOBJDIR will have the
correct value.

Reviewed by lukem.

#	$NetBSD: Makefile,v 1.195 2003/01/02 23:15:27 atatat Exp $

#
# This is the top-level makefile for building NetBSD. For an outline of
# how to build a snapshot or release, as well as other release engineering
# information, see http://www.netbsd.org/developers/releng/index.html
#
# Not everything you can set or do is documented in this makefile. In
# particular, you should review the files in /usr/share/mk (especially
# bsd.README) for general information on building programs and writing
# Makefiles within this structure, and see the comments in src/etc/Makefile
# for further information on installation and release set options.
#
# Variables listed below can be set on the make command line (highest
# priority), in /etc/mk.conf (middle priority), or in the environment
# (lowest priority).
#
# Variables:
#   DESTDIR is the target directory for installation of the compiled
#	software. It defaults to /. Note that programs are built against
#	libraries installed in DESTDIR.
#   MKMAN, if set to `no', will prevent building of manual pages.
#   MKOBJDIRS, if not set to `no', will build object directories at
#	an appropriate point in a build.
#   MKSHARE, if set to `no', will prevent building and installing
#	anything in /usr/share.
#   UPDATE, if defined, will avoid a `make cleandir' at the start of
#	`make build', as well as having the effects listed in
#	/usr/share/mk/bsd.README.
#   NOCLEANDIR, if defined, will avoid a `make cleandir' at the start
#	of the `make build'.
#   NOINCLUDES will avoid the `make includes' usually done by `make build'.
#
# Targets:
#   build:
#	Builds a full release of NetBSD in DESTDIR.  If BUILD_DONE is
#	set, this is an empty target.
#   release:
#	Does a `make build,' and then tars up the DESTDIR files
#	into RELEASEDIR, in release(7) format. (See etc/Makefile for
#	more information on this.)
#   regression-tests:
#	Runs the regression tests in "regress" on this host.
#
# Targets invoked by `make build,' in order:
#   cleandir:        cleans the tree.
#   obj:             creates object directories.
#   do-tools:        builds host toolchain.
#   do-distrib-dirs: creates the distribution directories.
#   includes:        installs include files.
#   do-lib-csu:      builds and installs prerequisites from lib/csu.
#   do-lib-libc:     builds and installs prerequisites from lib/libc.
#   do-lib:          builds and installs prerequisites from lib.
#   do-gnu-lib:      builds and installs prerequisites from gnu/lib.
#   do-ld.so:        builds and installs prerequisites from libexec/ld.*_so.
#   do-build:        builds and installs the entire system.
#

.if ${.MAKEFLAGS:M${.CURDIR}/share/mk} == ""
.MAKEFLAGS: -m ${.CURDIR}/share/mk
.endif

#
# If _SRC_TOP_OBJ_ gets set here, we will end up with a directory that may
# not be the top level objdir, because "make obj" can happen in the *middle*
# of "make build" (long after <bsd.own.mk> is calculated it).  So, pre-set
# _SRC_TOP_OBJ_ here so it will not be added to ${.MAKEOVERRIDES}.
#
_SRC_TOP_OBJ_=

.include <bsd.own.mk>

#
# Sanity check: make sure that "make build" is not invoked simultaneously
# with a standard recursive target.
#

.if make(build) || make(release) || make(snapshot)
.for targ in ${TARGETS:Nobj:Ncleandir}
.if make(${targ}) && !target(.BEGIN)
.BEGIN:
	@echo 'BUILD ABORTED: "make build" and "make ${targ}" are mutually exclusive.'
	@false
.endif
.endfor
.endif

_SUBDIR=	tools lib include gnu bin games libexec sbin usr.bin
_SUBDIR+=	usr.sbin share rescue sys etc distrib regress

#
# Weed out directories that don't exist.
#

.for dir in ${_SUBDIR}
.if exists(${dir}/Makefile) && (${BUILD_${dir}:Uyes} != "no")
SUBDIR+=	${dir}
.endif
.endfor

.if exists(regress)
regression-tests:
	@echo Running regression tests...
	@(cd ${.CURDIR}/regress && ${MAKE} regress)
.endif

.if defined(UNPRIVED)
NOPOSTINSTALL=	# defined
.endif

afterinstall:
.if ${MKMAN} != "no"
	(cd ${.CURDIR}/share/man && ${MAKE} makedb)
.endif
.if defined(UNPRIVED) && (${MKINFO} != "no")
	(cd ${.CURDIR}/gnu/usr.bin/texinfo/install-info && ${MAKE} infodir-meta)
.endif
.if !defined(NOPOSTINSTALL)
	(cd ${.CURDIR} && ${MAKE} postinstall-check)
.endif

postinstall-check:
	@echo "   === Post installation checks ==="
	sh ${.CURDIR}/etc/postinstall -s ${.CURDIR} -d ${DESTDIR}/ check
	@echo "   ================================"

postinstall-fix: .NOTMAIN
	@echo "   === Post installation fixes ==="
	sh ${.CURDIR}/etc/postinstall -s ${.CURDIR} -d ${DESTDIR}/ fix
	@echo "   ================================"


#
# Targets (in order!) called by "make build".
#

BUILDTARGETS+=	check-tools
.if !defined(UPDATE) && !defined(NOCLEANDIR)
BUILDTARGETS+=	cleandir
.endif
.if ${MKOBJDIRS} != "no"
BUILDTARGETS+=	obj
.endif
.if ${USETOOLS} == "yes"
BUILDTARGETS+=	do-tools
.endif
.if !defined(NODISTRIBDIRS)
BUILDTARGETS+=	do-distrib-dirs
.endif
.if !defined(NOINCLUDES)
BUILDTARGETS+=	includes
.endif
BUILDTARGETS+=	do-lib-csu do-lib-libc do-lib do-gnu-lib do-ld.so do-build

#
# Enforce proper ordering of some rules.
#

.ORDER:		${BUILDTARGETS}
includes-lib:	includes-include includes-sys
includes-gnu:	includes-lib

#
# Build the system and install into DESTDIR.
#

START_TIME!=	date

build:
.if defined(BUILD_DONE)
	@echo "Build already installed into ${DESTDIR}"
.else
	@echo "Build started at: ${START_TIME}"
.for tgt in ${BUILDTARGETS}
	@(cd ${.CURDIR} && ${MAKE} ${tgt})
.endfor
	@echo   "Build started at:  ${START_TIME}"
	@printf "Build finished at: " && date
.endif

#
# Build a full distribution, but not a release (i.e. no sets into
# ${RELEASEDIR}).  "buildworld" enforces a build to ${DESTDIR} != /
#

distribution buildworld:
.if make(buildworld) && \
    (!defined(DESTDIR) || ${DESTDIR} == "" || ${DESTDIR} == "/")
	@echo "Won't make ${.TARGET} with DESTDIR=/"
	@false
.endif
	(cd ${.CURDIR} && ${MAKE} NOPOSTINSTALL=1 build)
	(cd ${.CURDIR}/etc && ${MAKE} INSTALL_DONE=1 distribution)
.if defined(DESTDIR) && ${DESTDIR} != "" && ${DESTDIR} != "/"
	(cd ${.CURDIR}/distrib/sets && ${MAKE} checkflist)
.endif
	@echo   "make ${.TARGET} started at:  ${START_TIME}"
	@printf "make ${.TARGET} finished at: " && date

#
# Install the distribution from $DESTDIR to $INSTALLWORLDDIR (defaults to `/')
# If installing to /, ensures that the host's operating system is NetBSD and
# the host's `uname -m` == ${MACHINE}.
#

HOST_UNAME_S!=	uname -s
HOST_UNAME_M!=	uname -m

installworld:
.if (!defined(DESTDIR) || ${DESTDIR} == "" || ${DESTDIR} == "/")
	@echo "Can't make ${.TARGET} to DESTDIR=/"
	@false
.endif
.if !defined(INSTALLWORLDDIR) || \
    ${INSTALLWORLDDIR} == "" || ${INSTALLWORLDDIR} == "/"
.if (${HOST_UNAME_S} != "NetBSD")
	@echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_S} to NetBSD with INSTALLWORLDDIR=/"
	@false
.endif
.if (${HOST_UNAME_M} != ${MACHINE})
	@echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_M} to ${MACHINE} with INSTALLWORLDDIR=/"
	@false
.endif
.endif
	(cd ${.CURDIR}/distrib/sets && \
	    ${MAKE} INSTALLDIR=${INSTALLWORLDDIR:U/} INSTALLSETS= installsets)
	(cd ${.CURDIR} && \
	    ${MAKE} DESTDIR=${INSTALLWORLDDIR} postinstall-check)
	@echo   "make ${.TARGET} started at:  ${START_TIME}"
	@printf "make ${.TARGET} finished at: " && date

#
# Build a release or snapshot (implies "make build").  Note that
# in this case, the set lists will be checked before the tar files
# are made.
#

release snapshot:
	(cd ${.CURDIR} && ${MAKE} NOPOSTINSTALL=1 build)
	(cd ${.CURDIR}/etc && ${MAKE} INSTALL_DONE=1 release)
	@echo   "make ${.TARGET} started at:  ${START_TIME}"
	@printf "make ${.TARGET} finished at: " && date

#
# Special components of the "make build" process.
#

check-tools:
.if ${TOOLCHAIN_MISSING} == "yes" && !defined(EXTERNAL_TOOLCHAIN)
	@echo '*** WARNING:  Building on MACHINE=${MACHINE} with missing toolchain.'
	@echo '*** May result in a failed build or corrupt binaries!'
.elif defined(EXTERNAL_TOOLCHAIN)
	@echo '*** Using external toolchain rooted at ${EXTERNAL_TOOLCHAIN}.'
.endif
.if defined(NBUILDJOBS)
	@echo '*** WARNING: NBUILDJOBS is obsolete; use -j directly instead!'
.endif

do-distrib-dirs:
.if !defined(DESTDIR) || ${DESTDIR} == ""
	(cd ${.CURDIR}/etc && ${MAKE} DESTDIR=/ distrib-dirs)
.else
	(cd ${.CURDIR}/etc && ${MAKE} DESTDIR=${DESTDIR} distrib-dirs)
.endif

.for targ in cleandir obj includes
do-${targ}: ${targ}
	@true
.endfor

.for dir in tools lib/csu lib/libc lib gnu/lib
do-${dir:S/\//-/}:
.for targ in dependall install
	(cd ${.CURDIR}/${dir} && ${MAKE} ${targ})
.endfor
.endfor

do-ld.so:
.for targ in dependall install
.if (${OBJECT_FMT} == "a.out")
	(cd ${.CURDIR}/libexec/ld.aout_so && ${MAKE} ${targ})
.endif
.if (${OBJECT_FMT} == "ELF")
	(cd ${.CURDIR}/libexec/ld.elf_so && ${MAKE} ${targ})
.endif
.endfor

do-build:
.for targ in dependall install
	(cd ${.CURDIR} && ${MAKE} ${targ} BUILD_tools=no BUILD_lib=no)
.endfor

#
# Speedup stubs for some subtrees that don't need to run these rules.
# (Tells <bsd.subdir.mk> not to recurse for them.)
#

.for dir in bin etc distrib games libexec regress sbin usr.sbin tools
includes-${dir}:
	@true
.endfor
.for dir in etc distrib regress
install-${dir}:
	@true
.endfor

#
# XXX this needs to change when distrib Makefiles are recursion compliant
# XXX many distrib subdirs need "cd etc && make snap_pre snap_kern" first...
#
dependall-distrib depend-distrib all-distrib:
	@true

#
# we don't want the obj target in etc invoked as part of the normal
# course of events because that makes it too early.  therefore, define
# a neutral version of the target that bsd.subdir.mk would create.
#
obj-etc:
	@true

.include <bsd.obj.mk>
.include <bsd.subdir.mk>

#
# now, make a "real" target that will recurse into etc to enact the
# obj target, and .USE it onto the end of the obj handling for the
# current directory.  note that this is only done if we already have
# commands for the obj target (we won't if we're not making objdirs),
# and only if etc is a target subdirectory.
#
.if commands(obj) && (${SUBDIR:Metc} == "etc")
real-obj-etc: .USE
	@(echo "obj ===> etc"; \
		cd ${.CURDIR}/etc && ${MAKE} obj)
obj: real-obj-etc
.endif

build-docs: ${.CURDIR}/BUILDING
${.CURDIR}/BUILDING: doc/BUILDING.mdoc
	groff -mdoc -Tascii -P-b -P-u -P-o $> >$@