Makefile revision 1.151 
1#	$NetBSD: Makefile,v 1.151 2001/11/11 22:40:42 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-lib-csu:      builds and installs prerequisites from lib/csu.
53#   do-lib:          builds and installs prerequisites from lib.
54#   do-gnu-lib:      builds and installs prerequisites from gnu/lib.
55#   do-build:        builds and installs the entire system.
56
57.if ${.MAKEFLAGS:M${.CURDIR}/share/mk} == ""
58.MAKEFLAGS: -m ${.CURDIR}/share/mk
59.endif
60
61.include <bsd.own.mk>
62
63# Sanity check: make sure that "make build" is not invoked simultaneously
64# with a standard recursive target.
65
66.if make(build) || make(release) || make(snapshot)
67.for targ in ${TARGETS:Nobj:Ncleandir}
68.if make(${targ}) && !target(.BEGIN)
69.BEGIN:
70	@echo 'BUILD ABORTED: "make build" and "make ${targ}" are mutually exclusive.'
71	@false
72.endif
73.endfor
74.endif
75
76.if defined(NBUILDJOBS)
77_J=		-j${NBUILDJOBS}
78.endif
79
80_SUBDIR=	tools lib include gnu bin games libexec sbin usr.bin \
81		usr.sbin share sys etc distrib regress
82
83# Weed out directories that don't exist.
84
85.for dir in ${_SUBDIR}
86.if exists(${dir}/Makefile)
87SUBDIR+=	${dir}
88.endif
89.endfor
90
91.if exists(regress)
92regression-tests:
93	@echo Running regression tests...
94	@cd ${.CURDIR}/regress && ${MAKE} regress
95.endif
96
97.if ${MKMAN} != "no"
98afterinstall: whatis.db
99whatis.db:
100	cd ${.CURDIR}/share/man && ${MAKE} makedb
101.endif
102
103# Targets (in order!) called by "make build".
104
105.if ${MKOBJDIRS} != "no"
106BUILDTARGETS+=	obj
107.endif
108.if !defined(UPDATE) && !defined(NOCLEANDIR)
109BUILDTARGETS+=	cleandir
110.endif
111.if ${USETOOLS} == "yes"
112BUILDTARGETS+=	do-make-tools
113.endif
114.if !defined(NODISTRIBDIRS)
115BUILDTARGETS+=	do-distrib-dirs
116.endif
117.if !defined(NOINCLUDES)
118BUILDTARGETS+=	includes
119.endif
120BUILDTARGETS+=	do-lib-csu do-lib do-gnu-lib do-build
121
122# Enforce proper ordering of some rules.
123
124.ORDER:		${BUILDTARGETS}
125includes-lib:	includes-include includes-sys
126includes-gnu:	includes-lib
127
128# Build the system and install into DESTDIR.
129
130build:
131.if defined(BUILD_DONE)
132	@echo "Build already installed into ${DESTDIR}"
133.else
134	@echo -n "Build started at: " && date
135.for tgt in ${BUILDTARGETS}
136	${MAKE} ${_J} ${tgt}
137.endfor
138	@echo -n "Build finished at: " && date
139.endif
140
141# Build a release or snapshot (implies "make build").
142
143release snapshot: build
144	cd ${.CURDIR}/etc && ${MAKE} INSTALL_DONE=1 release
145
146# Special components of the "make build" process.
147
148do-make-tools:
149	cd ${.CURDIR}/tools && ${MAKE} build
150
151do-distrib-dirs:
152.if !defined(DESTDIR) || ${DESTDIR} == ""
153	cd ${.CURDIR}/etc && ${MAKE} DESTDIR=/ distrib-dirs
154.else
155	cd ${.CURDIR}/etc && ${MAKE} DESTDIR=${DESTDIR} distrib-dirs
156.endif
157
158.for dir in lib/csu lib gnu/lib
159do-${dir:S/\//-/}:
160.for targ in dependall install
161	cd ${.CURDIR}/${dir} && \
162		${MAKE} ${_J} MKSHARE=no MKLINT=no ${targ}
163.endfor
164.endfor
165
166do-build:
167	${MAKE} ${_J} dependall
168	${MAKE} ${_J} install
169
170# Speedup stubs for some subtrees that don't need to run these rules.
171# (Tells <bsd.subdir.mk> not to recurse for them.)
172
173includes-bin includes-games includes-libexec includes-regress \
174includes-sbin includes-usr.sbin includes-tools \
175dependall-tools depend-tools all-tools install-tools install-regress \
176dependall-distrib depend-distrib all-distrib install-distrib includes-distrib:
177	@true
178
179.include <bsd.obj.mk>
180.include <bsd.subdir.mk>
181
182build-docs: ${.CURDIR}/BUILDING
183${.CURDIR}/BUILDING: BUILDING.mdoc
184	groff -mdoc -Tascii -P-b -P-u -P-o $> >$@
185