bsd.after-import.mk revision 237578 
1# $Id: bsd.after-import.mk,v 1.5 2012/06/20 22:45:07 sjg Exp $
2
3# This makefile is for use when integrating bmake into a BSD build
4# system.  Use this makefile after importing bmake.
5# It will bootstrap the new version,
6# capture the generated files we need, and add an after-import
7# target to allow the process to be easily repeated.
8
9# The goal is to allow the benefits of autoconf without
10# the overhead of running configure.
11
12all: ${.CURDIR}/Makefile
13all: after-import
14
15# we rely on bmake
16.if !defined(.MAKE.LEVEL)
17.error this makefile requires bmake
18.endif
19
20_this := ${MAKEFILE:tA} 
21BMAKE_SRC := ${.PARSEDIR}
22
23# it helps to know where the top of the tree is.
24.if !defined(SRCTOP)
25srctop := ${.MAKE.MAKEFILES:M*src/share/mk/sys.mk:H:H:H}
26.if empty(srctop)
27# likely locations?
28.for d in contrib/bmake external/bsd/bmake/dist
29.if ${BMAKE_SRC:M*/$d} != ""
30srctop := ${BMAKE_SRC:tA:S,/$d,,}
31.endif
32.endfor
33.endif
34.if !empty(srctop)
35SRCTOP := ${srctop}
36.endif
37.endif
38
39# This lets us match what boot-strap does
40.if !defined(HOST_OS)
41HOST_OS!= uname
42.endif
43
44# .../share/mk will find ${SRCTOP}/share/mk
45# if we are within ${SRCTOP}
46DEFAULT_SYS_PATH= .../share/mk:/usr/share/mk
47
48BOOTSTRAP_ARGS = \
49	--with-default-sys-path='${DEFAULT_SYS_PATH}' \
50	--prefix /usr \
51	--share /usr/share \
52	--mksrc none
53
54# run boot-strap with minimal influence
55bootstrap:	${BMAKE_SRC}/boot-strap ${MAKEFILE}
56	HOME=/ ${BMAKE_SRC}/boot-strap ${BOOTSTRAP_ARGS} ${BOOTSTRAP_XTRAS}
57	touch ${.TARGET}
58
59# Makefiles need a little more tweaking than say config.h
60MAKEFILE_SED = 	sed -e '/^MACHINE/d' \
61	-e '/^PROG/s,bmake,${.CURDIR:T},' \
62	-e 's,^.-include,.sinclude,' \
63	-e 's,${SRCTOP},$${SRCTOP},g'
64
65# These are the simple files we want to capture
66configured_files= config.h unit-tests/Makefile
67
68after-import: bootstrap ${MAKEFILE}
69.for f in ${configured_files:N*Makefile}
70	@echo Capturing $f
71	@mkdir -p ${${.CURDIR}/$f:L:H}
72	@cmp -s ${.CURDIR}/$f ${HOST_OS}/$f || \
73	    cp ${HOST_OS}/$f ${.CURDIR}/$f
74.endfor
75.for f in ${configured_files:M*Makefile}
76	@echo Capturing $f
77	@mkdir -p ${${.CURDIR}/$f:L:H}
78	@${MAKEFILE_SED} ${HOST_OS}/$f > ${.CURDIR}/$f
79.endfor
80
81# this needs the most work
82${.CURDIR}/Makefile:	bootstrap ${MAKEFILE} .PRECIOUS
83	@echo Generating ${.TARGET:T}
84	@(echo '# This is a generated file, do NOT edit!'; \
85	echo '# See ${_this:S,${SRCTOP}/,,}'; \
86	echo '#'; echo '# $$${OS}$$'; echo; \
87	echo 'SRCTOP?= $${.CURDIR:${.CURDIR:S,${SRCTOP}/,,:C,[^/]+,H,g:S,/,:,g}}'; echo; \
88	echo; echo '# look here first for config.h'; \
89	echo 'CFLAGS+= -I$${.CURDIR}'; echo; \
90	${MAKEFILE_SED} ${HOST_OS}/Makefile; \
91	echo; echo '# override some simple things'; \
92	echo 'BINDIR= /usr/bin'; \
93	echo 'MANDIR= /usr/share/man'; \
94	echo; echo '# make sure we get this'; \
95	echo 'CFLAGS+= $${COPTS.$${.IMPSRC:T}}'; \
96	echo 'CLEANFILES+= bootstrap'; \
97	echo; echo 'after-import: ${_this:S,${SRCTOP},\${SRCTOP},}'; \
98	echo '	cd $${.CURDIR} && $${.MAKE} -f ${_this:S,${SRCTOP},\${SRCTOP},}'; \
99	echo; echo '.sinclude "Makefile.inc"'; \
100	echo ) > ${.TARGET:T}.new
101	@mv ${.TARGET:T}.new ${.TARGET}
102
103.include <bsd.obj.mk>
104
105