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# $Id: bsd.after-import.mk,v 1.5 2012/06/20 22:45:07 sjg Exp $
# This makefile is for use when integrating bmake into a BSD build
# system. Use this makefile after importing bmake.
# It will bootstrap the new version,
# capture the generated files we need, and add an after-import
# target to allow the process to be easily repeated.
# The goal is to allow the benefits of autoconf without
# the overhead of running configure.
all: ${.CURDIR}/Makefile
all: after-import
# we rely on bmake
.if !defined(.MAKE.LEVEL)
.error this makefile requires bmake
.endif
_this := ${MAKEFILE:tA}
BMAKE_SRC := ${.PARSEDIR}
# it helps to know where the top of the tree is.
.if !defined(SRCTOP)
srctop := ${.MAKE.MAKEFILES:M*src/share/mk/sys.mk:H:H:H}
.if empty(srctop)
# likely locations?
.for d in contrib/bmake external/bsd/bmake/dist
.if ${BMAKE_SRC:M*/$d} != ""
srctop := ${BMAKE_SRC:tA:S,/$d,,}
.endif
.endfor
.endif
.if !empty(srctop)
SRCTOP := ${srctop}
.endif
.endif
# This lets us match what boot-strap does
.if !defined(HOST_OS)
HOST_OS!= uname
.endif
# .../share/mk will find ${SRCTOP}/share/mk
# if we are within ${SRCTOP}
DEFAULT_SYS_PATH= .../share/mk:/usr/share/mk
BOOTSTRAP_ARGS = \
--with-default-sys-path='${DEFAULT_SYS_PATH}' \
--prefix /usr \
--share /usr/share \
--mksrc none
# run boot-strap with minimal influence
bootstrap: ${BMAKE_SRC}/boot-strap ${MAKEFILE}
HOME=/ ${BMAKE_SRC}/boot-strap ${BOOTSTRAP_ARGS} ${BOOTSTRAP_XTRAS}
touch ${.TARGET}
# Makefiles need a little more tweaking than say config.h
MAKEFILE_SED = sed -e '/^MACHINE/d' \
-e '/^PROG/s,bmake,${.CURDIR:T},' \
-e 's,^.-include,.sinclude,' \
-e 's,${SRCTOP},$${SRCTOP},g'
# These are the simple files we want to capture
configured_files= config.h unit-tests/Makefile
after-import: bootstrap ${MAKEFILE}
.for f in ${configured_files:N*Makefile}
@echo Capturing $f
@mkdir -p ${${.CURDIR}/$f:L:H}
@cmp -s ${.CURDIR}/$f ${HOST_OS}/$f || \
cp ${HOST_OS}/$f ${.CURDIR}/$f
.endfor
.for f in ${configured_files:M*Makefile}
@echo Capturing $f
@mkdir -p ${${.CURDIR}/$f:L:H}
@${MAKEFILE_SED} ${HOST_OS}/$f > ${.CURDIR}/$f
.endfor
# this needs the most work
${.CURDIR}/Makefile: bootstrap ${MAKEFILE} .PRECIOUS
@echo Generating ${.TARGET:T}
@(echo '# This is a generated file, do NOT edit!'; \
echo '# See ${_this:S,${SRCTOP}/,,}'; \
echo '#'; echo '# $$${OS}$$'; echo; \
echo 'SRCTOP?= $${.CURDIR:${.CURDIR:S,${SRCTOP}/,,:C,[^/]+,H,g:S,/,:,g}}'; echo; \
echo; echo '# look here first for config.h'; \
echo 'CFLAGS+= -I$${.CURDIR}'; echo; \
${MAKEFILE_SED} ${HOST_OS}/Makefile; \
echo; echo '# override some simple things'; \
echo 'BINDIR= /usr/bin'; \
echo 'MANDIR= /usr/share/man'; \
echo; echo '# make sure we get this'; \
echo 'CFLAGS+= $${COPTS.$${.IMPSRC:T}}'; \
echo 'CLEANFILES+= bootstrap'; \
echo; echo 'after-import: ${_this:S,${SRCTOP},\${SRCTOP},}'; \
echo ' cd $${.CURDIR} && $${.MAKE} -f ${_this:S,${SRCTOP},\${SRCTOP},}'; \
echo; echo '.sinclude "Makefile.inc"'; \
echo ) > ${.TARGET:T}.new
@mv ${.TARGET:T}.new ${.TARGET}
.include <bsd.obj.mk>
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