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112 lines
3.4 KiB
Makefile
112 lines
3.4 KiB
Makefile
# $Id: bsd.after-import.mk,v 1.12 2014/02/14 23:45:49 sjg Exp $
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# This makefile is for use when integrating bmake into a BSD build
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# system. Use this makefile after importing bmake.
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# It will bootstrap the new version,
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# capture the generated files we need, and add an after-import
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# target to allow the process to be easily repeated.
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# The goal is to allow the benefits of autoconf without
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# the overhead of running configure.
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all: _makefile
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all: after-import
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# we rely on bmake
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.if !defined(.PARSEDIR)
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.error this makefile requires bmake
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.endif
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_this := ${MAKEFILE:tA}
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BMAKE_SRC := ${.PARSEDIR}
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# it helps to know where the top of the tree is.
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.if !defined(SRCTOP)
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srctop := ${.MAKE.MAKEFILES:M*src/share/mk/sys.mk:H:H:H}
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.if empty(srctop)
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# likely locations?
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.for d in contrib/bmake external/bsd/bmake/dist
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.if ${BMAKE_SRC:M*/$d} != ""
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srctop := ${BMAKE_SRC:tA:S,/$d,,}
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.endif
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.endfor
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.endif
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.if !empty(srctop)
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SRCTOP := ${srctop}
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.endif
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.endif
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# This lets us match what boot-strap does
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.if !defined(HOST_OS)
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HOST_OS!= uname
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.endif
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BOOTSTRAP_ARGS = \
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--prefix /usr \
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--share /usr/share
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.if !empty(DEFAULT_SYS_PATH)
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BOOTSTRAP_ARGS += --with-default-sys-path='${DEFAULT_SYS_PATH}'
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.endif
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# run boot-strap with minimal influence
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bootstrap: ${BMAKE_SRC}/boot-strap ${MAKEFILE}
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HOME=/ ${BMAKE_SRC}/boot-strap -o ${HOST_OS} ${BOOTSTRAP_ARGS} ${BOOTSTRAP_XTRAS}
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touch ${.TARGET}
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# Makefiles need a little more tweaking than say config.h
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MAKEFILE_SED = sed -e '/^MACHINE/d' \
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-e '/^PROG/ { s,=,?=,;s,bmake,$${.CURDIR:T},; }' \
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-e 's,^.-include,.sinclude,' \
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-e '/^\..*include *</ { s,<,<bsd.,;/autoconf/d; }' \
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-e 's,${SRCTOP},$${SRCTOP},g'
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# These are the simple files we want to capture
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configured_files= config.h Makefile.config unit-tests/Makefile
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after-import: bootstrap ${MAKEFILE}
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.for f in ${configured_files:M*.[ch]}
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@echo Capturing $f
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@mkdir -p ${${.CURDIR}/$f:L:H}
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@(echo '/* $$${HOST_OS}$$ */'; cat ${HOST_OS}/$f) > ${.CURDIR}/$f
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.endfor
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.for f in ${configured_files:M*Makefile*}
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@echo Capturing $f
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@mkdir -p ${${.CURDIR}/$f:L:H}
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@(echo '# This is a generated file, do NOT edit!'; \
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echo '# See ${_this:S,${SRCTOP}/,,}'; \
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echo '#'; echo '# $$${HOST_OS}$$'; echo; \
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echo 'SRCTOP?= $${.CURDIR:${${.CURDIR}/$f:L:H:S,${SRCTOP}/,,:C,[^/]+,H,g:S,/,:,g}}'; echo; \
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${MAKEFILE_SED} ${HOST_OS}/$f ) > ${.CURDIR}/$f
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.endfor
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# this needs the most work
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_makefile: bootstrap ${MAKEFILE}
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@echo Generating ${.CURDIR}/Makefile
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@(echo '# This is a generated file, do NOT edit!'; \
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echo '# See ${_this:S,${SRCTOP}/,,}'; \
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echo '#'; echo '# $$${HOST_OS}$$'; \
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echo; echo '.sinclude "Makefile.inc"'; \
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echo; echo 'SRCTOP?= $${.CURDIR:${.CURDIR:S,${SRCTOP}/,,:C,[^/]+,H,g:S,/,:,g}}'; \
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echo; echo '# look here first for config.h'; \
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echo 'CFLAGS+= -I$${.CURDIR}'; echo; \
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echo '# for after-import'; \
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echo 'CLEANDIRS+= ${HOST_OS}'; \
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echo 'CLEANFILES+= bootstrap'; echo; \
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${MAKEFILE_SED} \
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${1 2:L:@n@-e '/start-delete$n/,/end-delete$n/d'@} \
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${BMAKE_SRC}/Makefile; \
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echo; echo '# override some simple things'; \
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echo 'BINDIR= /usr/bin'; \
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echo 'MANDIR= ${MANDIR:U/usr/share/man}'; \
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echo; echo '# make sure we get this'; \
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echo 'CFLAGS+= $${COPTS.$${.IMPSRC:T}}'; \
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echo; echo 'after-import: ${_this:S,${SRCTOP},\${SRCTOP},}'; \
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echo ' cd $${.CURDIR} && $${.MAKE} -f ${_this:S,${SRCTOP},\${SRCTOP},}'; \
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echo ) > ${.TARGET}
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@cmp -s ${.TARGET} ${.CURDIR}/Makefile || \
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mv ${.TARGET} ${.CURDIR}/Makefile
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.include <bsd.obj.mk>
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