Makefile revision 1.165 
1#	$NetBSD: Makefile,v 1.165 2002/03/05 16:17:06 pk 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#   cleandir:        cleans the tree.
48#   obj:             creates object directories.
49#   do-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# If _SRC_TOP_OBJ_ gets set here, we will end up with a directory that may
62# not be the top level objdir, because "make obj" can happen in the *middle*
63# of "make build" (long after <bsd.own.mk> is calculated it).  So, pre-set
64# _SRC_TOP_OBJ_ here so it will not be added to ${.MAKEOVERRIDES}.
65_SRC_TOP_OBJ_=
66
67.include <bsd.own.mk>
68
69# Sanity check: make sure that "make build" is not invoked simultaneously
70# with a standard recursive target.
71
72.if make(build) || make(release) || make(snapshot)
73.for targ in ${TARGETS:Nobj:Ncleandir}
74.if make(${targ}) && !target(.BEGIN)
75.BEGIN:
76	@echo 'BUILD ABORTED: "make build" and "make ${targ}" are mutually exclusive.'
77	@false
78.endif
79.endfor
80.endif
81
82.if defined(NBUILDJOBS)
83.if !target(.BEGIN)
84.BEGIN:
85	@echo 'NBUILDJOBS is currently broken; see PR toolchain/14837.'
86	@false
87.endif
88#_J=		-j${NBUILDJOBS}
89.endif
90
91_SUBDIR=	tools lib include gnu bin games libexec sbin usr.bin \
92		usr.sbin share sys etc distrib regress
93
94# Weed out directories that don't exist.
95
96.for dir in ${_SUBDIR}
97.if exists(${dir}/Makefile) && (${BUILD_${dir}:Uyes} != "no")
98SUBDIR+=	${dir}
99.endif
100.endfor
101
102.if exists(regress)
103regression-tests:
104	@echo Running regression tests...
105	@(cd ${.CURDIR}/regress && ${MAKE} regress)
106.endif
107
108afterinstall:
109.if ${MKMAN} != "no"
110	(cd ${.CURDIR}/share/man && ${MAKE} makedb)
111.endif
112.if defined(UNPRIVED) && (${MKINFO} != "no")
113	(cd ${.CURDIR}/gnu/usr.bin/texinfo/install-info && ${MAKE} infodir-meta)
114.endif
115
116# Targets (in order!) called by "make build".
117
118BUILDTARGETS+=	check-tools
119.if !defined(UPDATE) && !defined(NOCLEANDIR)
120BUILDTARGETS+=	cleandir
121.endif
122.if ${MKOBJDIRS} != "no"
123BUILDTARGETS+=	obj
124.endif
125.if ${USETOOLS} == "yes"
126BUILDTARGETS+=	do-tools
127.endif
128.if !defined(NODISTRIBDIRS)
129BUILDTARGETS+=	do-distrib-dirs
130.endif
131.if !defined(NOINCLUDES)
132BUILDTARGETS+=	includes
133.endif
134BUILDTARGETS+=	do-lib-csu do-lib do-gnu-lib do-build
135
136# Enforce proper ordering of some rules.
137
138.ORDER:		${BUILDTARGETS}
139includes-lib:	includes-include includes-sys
140includes-gnu:	includes-lib
141
142# Build the system and install into DESTDIR.
143
144build:
145.if defined(BUILD_DONE)
146	@echo "Build already installed into ${DESTDIR}"
147.else
148	@echo -n "Build started at: " && date
149.for tgt in ${BUILDTARGETS}
150	@(cd ${.CURDIR} && ${MAKE} ${_J} ${tgt})
151.endfor
152	@echo -n "Build finished at: " && date
153.endif
154
155# Build a full distribution, but not a release (i.e. no sets into
156# ${RELEASEDIR}).
157
158distribution: build
159	(cd ${.CURDIR}/etc && ${MAKE} INSTALL_DONE=1 distribution)
160
161# Build a release or snapshot (implies "make build").
162
163release snapshot: build
164	(cd ${.CURDIR}/etc && ${MAKE} INSTALL_DONE=1 release)
165
166# Special components of the "make build" process.
167
168check-tools:
169.if defined(USE_NEW_TOOLCHAIN) && (${USE_NEW_TOOLCHAIN} != "nowarn")
170	@echo '*** WARNING:  Building on MACHINE=${MACHINE} with USE_NEW_TOOLCHAIN.'
171	@echo '*** This platform is not yet verified to work with the new toolchain,'
172	@echo '*** and may result in a failed build or corrupt binaries!'
173.endif
174
175do-distrib-dirs:
176.if !defined(DESTDIR) || ${DESTDIR} == ""
177	(cd ${.CURDIR}/etc && ${MAKE} DESTDIR=/ distrib-dirs)
178.else
179	(cd ${.CURDIR}/etc && ${MAKE} DESTDIR=${DESTDIR} distrib-dirs)
180.endif
181
182.for dir in tools lib/csu lib gnu/lib
183do-${dir:S/\//-/}:
184.for targ in dependall install
185	(cd ${.CURDIR}/${dir} && ${MAKE} ${_J} ${targ})
186.endfor
187.endfor
188
189do-build:
190.for targ in dependall install
191	(cd ${.CURDIR} && ${MAKE} ${_J} ${targ} BUILD_tools=no BUILD_lib=no)
192.endfor
193
194# Speedup stubs for some subtrees that don't need to run these rules.
195# (Tells <bsd.subdir.mk> not to recurse for them.)
196
197.for dir in bin etc distrib games libexec regress sbin usr.sbin tools
198includes-${dir}:
199	@true
200.endfor
201.for dir in etc distrib regress
202install-${dir}:
203	@true
204.endfor
205
206# XXX this needs to change when distrib Makefiles are recursion compliant
207dependall-distrib depend-distrib all-distrib:
208	@true
209
210clean:
211	rm -f METALOG
212
213.include <bsd.obj.mk>
214.include <bsd.subdir.mk>
215
216build-docs: ${.CURDIR}/BUILDING
217${.CURDIR}/BUILDING: BUILDING.mdoc
218	groff -mdoc -Tascii -P-b -P-u -P-o $> >$@
219