Makefile revision 1.142 
1#	$NetBSD: Makefile,v 1.142 2001/10/24 02:45:34 tv Exp $
2
3# This is the top-level makefile for building NetBSD. For an outline of
4# how to build a snapshot or release, as well as other release engineering
5# information, see http://www.netbsd.org/developers/releng/index.html
6#
7# Not everything you can set or do is documented in this makefile. In
8# particular, you should review the files in /usr/share/mk (especially
9# bsd.README) for general information on building programs and writing
10# Makefiles within this structure, and see the comments in src/etc/Makefile
11# for further information on installation and release set options.
12#
13# Variables listed below can be set on the make command line (highest
14# priority), in /etc/mk.conf (middle priority), or in the environment
15# (lowest priority).
16#
17# Variables:
18#   DESTDIR is the target directory for installation of the compiled
19#	software. It defaults to /. Note that programs are built against
20#	libraries installed in DESTDIR.
21#   MKMAN, if set to `no', will prevent building of manual pages.
22#   MKOBJDIRS, if not set to `no', will build object directories at 
23#	an appropriate point in a build.
24#   MKSHARE, if set to `no', will prevent building and installing
25#	anything in /usr/share.
26#   NBUILDJOBS is the number of jobs to start in parallel during a
27#	`make build'. It defaults to 1.
28#   UPDATE, if defined, will avoid a `make cleandir' at the start of
29#     `make build', as well as having the effects listed in
30#     /usr/share/mk/bsd.README.
31#   NOCLEANDIR, if defined, will avoid a `make cleandir' at the start
32#     of the `make build'.
33#   NOINCLUDES will avoid the `make includes' usually done by `make build'.
34#
35# Targets:
36#   build:
37#	Builds a full release of NetBSD in DESTDIR.  If BUILD_DONE is
38#	set, this is an empty target.
39#   release:
40#	Does a `make build,' and then tars up the DESTDIR files
41#	into RELEASEDIR, in release(7) format. (See etc/Makefile for
42#	more information on this.)
43#   regression-tests:
44#	Runs the regression tests in "regress" on this host.
45#
46# Targets invoked by `make build,' in order:
47#   obj:             creates object directories.
48#   cleandir:        cleans the tree.
49#   do-make-tools:   builds host toolchain.
50#   do-distrib-dirs: creates the distribution directories.
51#   includes:        installs include files.
52#   do-build:        builds and installs the entire system.
53
54.include "${.CURDIR}/share/mk/bsd.own.mk"
55
56# Sanity check: make sure that "make build" is not invoked simultaneously
57# with a standard recursive target.
58
59.if make(build) || make(release) || make(snapshot)
60.for targ in ${TARGETS:Nobj:Ncleandir}
61.if make(${targ}) && !target(.BEGIN)
62.BEGIN:
63	@echo 'BUILD ABORTED: "make build" and "make ${targ}" are mutually exclusive.'
64	@false
65.endif
66.endfor
67.endif
68
69.if defined(NBUILDJOBS)
70_J=		-j${NBUILDJOBS}
71.endif
72
73.if ${USETOOLS} == "yes"
74_SUBDIR+=	tools
75.endif
76_SUBDIR+=	lib include gnu bin games libexec sbin usr.bin \
77		usr.sbin share sys etc distrib regress
78
79# Weed out directories that don't exist.
80
81.for dir in ${_SUBDIR}
82.if exists(${dir}/Makefile)
83SUBDIR+=	${dir}
84.endif
85.endfor
86
87.if exists(regress)
88regression-tests:
89	@echo Running regression tests...
90	@cd ${.CURDIR}/regress && ${MAKE} ${_M} regress
91.endif
92
93.if ${MKMAN} != "no"
94afterinstall: whatis.db
95whatis.db:
96	cd ${.CURDIR}/share/man && ${MAKE} ${_M} makedb
97.endif
98
99# Targets (in order!) called by "make build".
100
101.if ${MKOBJDIRS:Uno} != "no"
102BUILDTARGETS+=	obj
103.endif
104.if !defined(UPDATE) && !defined(NOCLEANDIR)
105BUILDTARGETS+=	cleandir
106.endif
107.if ${USETOOLS} == "yes"
108BUILDTARGETS+=	do-make-tools
109.endif
110.if !defined(NODISTRIBDIRS)
111BUILDTARGETS+=	do-distrib-dirs
112.endif
113.if !defined(NOINCLUDES)
114BUILDTARGETS+=	includes
115.endif
116BUILDTARGETS+=	do-build
117
118# Enforce proper ordering of some rules.
119
120.ORDER:		${BUILDTARGETS}
121includes-lib:	includes-include includes-sys
122includes-gnu:	includes-lib
123
124# Build the system and install into DESTDIR.
125
126build:
127.if defined(BUILD_DONE)
128	@echo "Build already installed into ${DESTDIR}"
129.else
130	@echo -n "Build started at: " && date
131	@${MAKE} ${_J} ${_M} ${BUILDTARGETS}
132	@echo -n "Build finished at: " && date
133.endif
134
135# Build a release or snapshot (implies "make build").
136
137release snapshot: build
138	cd ${.CURDIR}/etc && ${MAKE} ${_M} INSTALL_DONE=1 release
139
140# Special components of the "make build" process.
141
142do-make-tools:
143	cd ${.CURDIR}/tools && ${MAKE} ${_M} build
144
145do-distrib-dirs:
146	cd ${.CURDIR}/etc && ${MAKE} ${_M} DESTDIR=${DESTDIR} distrib-dirs
147
148do-build:
149.for dir in lib/csu lib gnu/lib
150.for targ in dependall install
151	cd ${.CURDIR}/${dir} && \
152		${MAKE} ${_M} ${_J} MKSHARE=no MKLINT=no ${targ}
153.endfor
154.endfor
155	${MAKE} ${_M} ${_J} dependall
156	${MAKE} ${_M} ${_J} install
157
158# Speedup stubs for some subtrees that don't need to run these rules.
159# (Tells <bsd.subdir.mk> not to recurse for them.)
160
161includes-bin includes-games includes-libexec includes-regress \
162includes-sbin includes-usr.sbin includes-tools \
163dependall-tools depend-tools all-tools install-tools install-regress \
164dependall-distrib depend-distrib all-distrib install-distrib includes-distrib:
165	@true
166
167.include "${.CURDIR}/share/mk/bsd.subdir.mk"
168
169_M:=	-m ${.CURDIR}/share/mk
170