xref: /freebsd/share/mk/bsd.subdir.mk (revision 2ad756a6bbb30fc98ee9000fba5bceec916a6c70)
1#	from: @(#)bsd.subdir.mk	5.9 (Berkeley) 2/1/91
2#
3# The include file <bsd.subdir.mk> contains the default targets
4# for building subdirectories.
5#
6# For all of the directories listed in the variable SUBDIRS, the
7# specified directory will be visited and the target made. There is
8# also a default target which allows the command "make subdir" where
9# subdir is any directory listed in the variable SUBDIRS.
10#
11#
12# +++ variables +++
13#
14# DISTRIBUTION	Name of distribution. [base]
15#
16# SUBDIR	A list of subdirectories that should be built as well.
17#		Each of the targets will execute the same target in the
18#		subdirectories. SUBDIR.yes and SUBDIR.yes.yes are
19#		automatically appended to this list.
20#
21# +++ targets +++
22#
23#	distribute:
24# 		This is a variant of install, which will
25# 		put the stuff into the right "distribution".
26#
27# 	See SUBDIR_TARGETS for list of targets that will recurse.
28#
29# 	Targets defined in STANDALONE_SUBDIR_TARGETS will always be ran
30# 	with SUBDIR_PARALLEL and will not respect .WAIT or SUBDIR_DEPEND_
31# 	values.
32#
33# 	SUBDIR_TARGETS and STANDALONE_SUBDIR_TARGETS can be appended to
34# 	via make.conf or src.conf.
35#
36
37.if !target(__<bsd.subdir.mk>__)
38__<bsd.subdir.mk>__:
39
40.if ${MK_AUTO_OBJ} == "no"
41_obj=	obj
42.endif
43
44SUBDIR_TARGETS+= \
45		all all-man analyze buildconfig buildfiles buildincludes \
46		checkdpadd clean cleandepend cleandir cleanilinks \
47		cleanobj depend distribute files includes installconfig \
48		installdirs \
49		installfiles installincludes print-dir realinstall \
50		maninstall manlint ${_obj} objlink tags \
51
52# Described above.
53STANDALONE_SUBDIR_TARGETS+= \
54		all-man buildconfig buildfiles buildincludes check checkdpadd \
55		clean cleandepend cleandir cleanilinks cleanobj files includes \
56		installconfig installdirs installincludes installfiles print-dir \
57		maninstall manlint obj objlink
58
59# It is safe to install in parallel when staging.
60.if defined(NO_ROOT) || !empty(SYSROOT)
61STANDALONE_SUBDIR_TARGETS+= realinstall
62.endif
63
64.include <bsd.init.mk>
65
66.if ${MK_META_MODE} == "yes"
67.MAKE.JOB.PREFIX=
68ECHODIR=	:
69.endif
70
71.if make(print-dir)
72NEED_SUBDIR=	1
73ECHODIR=	:
74.SILENT:
75.if ${RELDIR:U.} != "."
76print-dir:	.PHONY
77	@echo ${RELDIR}
78.endif
79.endif
80
81.if ${MK_AUTO_OBJ} == "yes" && !target(obj)
82obj: .PHONY
83.endif
84
85.if !defined(NEED_SUBDIR)
86# .MAKE.DEPENDFILE==/dev/null is set by bsd.dep.mk to avoid reading
87# Makefile.depend
88.if ${.MAKE.LEVEL} == 0 && ${MK_DIRDEPS_BUILD} == "yes" && !empty(SUBDIR) && \
89    ${.MAKE.DEPENDFILE} != "/dev/null"
90.include <meta.subdir.mk>
91# ignore this
92_SUBDIR:
93.endif
94.endif
95
96DISTRIBUTION?=	base
97.if !target(distribute)
98distribute: .MAKE
99.for dist in ${DISTRIBUTION}
100	${_+_}cd ${.CURDIR}; \
101	    ${MAKE} install installconfig -DNO_SUBDIR DISTBASE=/${dist} DESTDIR=${DISTDIR}/${dist} SHARED=copies
102.endfor
103.endif
104# Convenience targets to run 'build${target}' and 'install${target}' when
105# calling 'make ${target}'.
106.for __target in files includes
107.if !target(${__target})
108${__target}:	build${__target} install${__target}
109.ORDER:		build${__target} install${__target}
110.endif
111.endfor
112
113# Make 'install' supports a before and after target.  Actual install
114# hooks are placed in 'realinstall'.
115.if !target(install)
116.for __stage in before real after
117.if !target(${__stage}install)
118${__stage}install:
119.endif
120.endfor
121install:	beforeinstall realinstall afterinstall
122.ORDER:		beforeinstall realinstall afterinstall
123.endif
124.ORDER: all install
125
126# SUBDIR recursing may be disabled for MK_DIRDEPS_BUILD
127.if !target(_SUBDIR)
128
129.if defined(SUBDIR) || defined(SUBDIR.yes) || defined(SUBDIR.yes.yes)
130SUBDIR:=${SUBDIR} ${SUBDIR.yes} ${SUBDIR.yes.yes}
131SUBDIR:=${SUBDIR:u}
132.endif
133
134.if defined(SUBDIR.)
135.error ${.CURDIR}: Found variable SUBDIR. with value "${SUBDIR.}". This was \
136        probably caused by using SUBDIR.$${MK_FOO} without including \
137        <src.opts.mk> or by using an invalid $${MK_FOO} option.
138.endif
139
140# Subdir code shared among 'make <subdir>', 'make <target>' and SUBDIR_PARALLEL.
141_SUBDIR_SH=	\
142		if test -d ${.CURDIR}/$${dir}.${MACHINE_ARCH}; then \
143			dir=$${dir}.${MACHINE_ARCH}; \
144		fi; \
145		${ECHODIR} "===> ${DIRPRFX}$${dir} ($${target})"; \
146		cd ${.CURDIR}/$${dir}; \
147		${MAKE} $${target} DIRPRFX=${DIRPRFX}$${dir}/
148
149# This is kept for compatibility only.  The normal handling of attaching to
150# SUBDIR_TARGETS will create a target for each directory.
151_SUBDIR: .USEBEFORE
152.if defined(SUBDIR) && !empty(SUBDIR) && !defined(NO_SUBDIR)
153	@${_+_}target=${.TARGET:realinstall=install}; \
154	    for dir in ${SUBDIR:N.WAIT}; do ( ${_SUBDIR_SH} ); done
155.endif
156
157# Create 'make subdir' targets to run the real 'all' target.
158.for __dir in ${SUBDIR:N.WAIT}
159${__dir}: all_subdir_${DIRPRFX}${__dir} .PHONY
160.endfor
161
162.for __target in ${SUBDIR_TARGETS}
163# Can ordering be skipped for this and SUBDIR_PARALLEL forced?
164.if ${STANDALONE_SUBDIR_TARGETS:M${__target}}
165_is_standalone_target=	1
166_subdir_filter=	N.WAIT
167.else
168_is_standalone_target=	0
169_subdir_filter=
170.endif
171__subdir_targets=
172.for __dir in ${SUBDIR:${_subdir_filter}}
173.if ${__dir} == .WAIT
174__subdir_targets+= .WAIT
175.else
176__deps=
177.if ${_is_standalone_target} == 0
178.if defined(SUBDIR_PARALLEL)
179# Apply SUBDIR_DEPEND dependencies for SUBDIR_PARALLEL.
180.for __dep in ${SUBDIR_DEPEND_${__dir}}
181__deps+= ${__target}_subdir_${DIRPRFX}${__dep}
182.endfor
183.else
184# For non-parallel builds, directories depend on all targets before them.
185__deps:= ${__subdir_targets}
186.endif	# defined(SUBDIR_PARALLEL)
187.endif	# ${_is_standalone_target} == 0
188${__target}_subdir_${DIRPRFX}${__dir}: .PHONY .MAKE .SILENT ${__deps}
189	@${_+_}target=${__target:realinstall=install}; \
190	    dir=${__dir}; \
191	    ${_SUBDIR_SH};
192__subdir_targets+= ${__target}_subdir_${DIRPRFX}${__dir}
193.endif	# ${__dir} == .WAIT
194.endfor	# __dir in ${SUBDIR}
195
196# Attach the subdir targets to the real target.
197# Only recurse on directly-called targets.  I.e., don't recurse on dependencies
198# such as 'install' becoming {before,real,after}install, just recurse
199# 'install'.  Despite that, 'realinstall' is special due to ordering issues
200# with 'afterinstall'.
201.if !defined(NO_SUBDIR) && (make(${__target}) || \
202    (${__target} == realinstall && make(install)))
203${__target}: ${__subdir_targets} .PHONY
204.endif	# make(${__target})
205.endfor	# __target in ${SUBDIR_TARGETS}
206
207.endif	# !target(_SUBDIR)
208
209# Ensure all targets exist
210.for __target in ${SUBDIR_TARGETS}
211.if !target(${__target})
212${__target}:
213.endif
214.endfor
215
216.endif
217