bsd.after-import.mk revision 236769 
1# $Id: bsd.after-import.mk,v 1.3 2012/06/06 17:48:14 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_this := ${MAKEFILE:tA} 
17BMAKE_SRC := ${.PARSEDIR}
18
19# it helps to know where the top of the tree is.
20.if !defined(SRCTOP)
21srctop := ${.MAKE.MAKEFILES:M*src/share/mk/sys.mk:H:H:H}
22.if !empty(srctop)
23SRCTOP := ${srctop}
24.endif
25.endif
26
27# This lets us match what boot-strap does
28.if !defined(HOST_OS)
29HOST_OS!= uname
30.endif
31
32# .../share/mk will find ${SRCTOP}/share/mk
33# if we are within ${SRCTOP}
34DEFAULT_SYS_PATH= .../share/mk:/usr/share/mk
35
36BOOTSTRAP_ARGS = \
37	--with-default-sys-path='${DEFAULT_SYS_PATH}' \
38	--prefix /usr \
39	--share /usr/share \
40	--mksrc none
41
42# run boot-strap with minimal influence
43bootstrap:	${BMAKE_SRC}/boot-strap ${MAKEFILE}
44	HOME=/ ${BMAKE_SRC}/boot-strap ${BOOTSTRAP_ARGS} ${BOOTSTRAP_XTRAS}
45	touch ${.TARGET}
46
47# Makefiles need a little more tweaking than say config.h
48MAKEFILE_SED = 	sed -e '/^MACHINE/d' \
49	-e '/^PROG/s,bmake,${.CURDIR:T},' \
50	-e 's,${SRCTOP},$${SRCTOP},g'
51
52# These are the simple files we want to capture
53configured_files= config.h unit-tests/Makefile
54
55after-import: bootstrap ${MAKEFILE}
56.for f in ${configured_files:N*Makefile}
57	@echo Capturing $f
58	@cmp -s ${.CURDIR}/$f ${HOST_OS}/$f || \
59	    cp ${HOST_OS}/$f ${.CURDIR}/$f
60.endfor
61.for f in ${configured_files:M*Makefile}
62	@echo Capturing $f
63	@${MAKEFILE_SED} ${HOST_OS}/$f > ${.CURDIR}/$f
64.endfor
65
66# this needs the most work
67${.CURDIR}/Makefile:	bootstrap ${MAKEFILE} .PRECIOUS
68	@echo Generating ${.TARGET:T}
69	@(echo '# This is a generated file, do NOT edit!'; \
70	echo '# See ${_this:S,${SRCTOP}/,,}'; \
71	echo; echo '# look here first for config.h'; \
72	echo 'CFLAGS+= -I$${.CURDIR}'; echo; \
73	${MAKEFILE_SED} ${HOST_OS}/Makefile; \
74	echo; echo '# override some simple things'; \
75	echo 'BINDIR= /usr/bin'; \
76	echo 'MANDIR= /usr/share/man'; \
77	echo; echo '# make sure we get this'; \
78	echo 'CFLAGS+= $${COPTS.$${.IMPSRC:T}}'; \
79	echo 'CLEANFILES+= bootstrap'; \
80	echo; echo 'after-import: ${_this:S,${SRCTOP},\${SRCTOP},}'; \
81	echo '	cd $${.CURDIR} && $${.MAKE} -f ${_this:S,${SRCTOP},\${SRCTOP},}'; \
82	echo; echo '.-include "Makefile.inc"'; \
83	echo ) > ${.TARGET:T}.new
84	@mv ${.TARGET:T}.new ${.TARGET}
85
86.include <bsd.obj.mk>
87
88