#	$NetBSD: Makefile.crunch,v 1.19 2005/02/10 16:03:34 jmc Exp $
#
# Makefile snippet to build a crunchgen(1)ed binary from the provided lists
#
# Required variables:
#	NETBSDSRCDIR	top level of src tree (set by <bsd.own.mk>)
#	CRUNCHBIN	name of crunchgen(1)ed binary
#	LISTS		list file(s) to use
#
# Optional variables:
#	SMALLPROG	if != 0, add SMALLPROG=1 to CRUNCHENV.  [default: 1]
#	SMALLPROG_INET6	if != 0 and SMALLPROG != 0, and ${USE_INET6} != "no",
#			add SMALLPROG_INET6=1 to CRUNCHENV.  [default: 0]
#	CRUNCHENV	environment to pass to crunchgen(1) and when building
#			the crunched program with make(1) (as command line
#			variables, to override any user provided environment
#			or make(1) cmdline vars).
#	CRUNCHGEN_FLAGS	extra options to crunchgen(1)
#	DESTDIR		destination directory
#	PARSELISTENV	environment variables to set for parselist.awk
#
# Variables modified by this:
#	CRUNCHENV	may get SMALLPROG=1 or SMALLPROG_INET6=1 added
#

.if !defined(_MAKEFILE_CRUNCH_)
_MAKEFILE_CRUNCH_=1


SMALLPROG?=		1
SMALLPROG_INET6?=	0
.if ${SMALLPROG}				# {
CRUNCHENV+=		SMALLPROG=1
.if ${SMALLPROG_INET6} && (${USE_INET6} != "no")
CRUNCHENV+=		SMALLPROG_INET6=1
.endif
.endif						# }

.include "${DISTRIBDIR}/common/Makefile.parselist"

.PHONY:	${CRUNCHBIN}
${CRUNCHBIN}: ${CRUNCHBIN}.mk ${CRUNCHBIN}.cache ${CRUNCHBIN}.c
	${MAKE} ${CRUNCHENV} -f ${CRUNCHBIN}.mk ${CRUNCHBIN}.crunched

${CRUNCHBIN}.c: ${CRUNCHBIN}.mk
	[ ! -f ${.TARGET} ] || touch ${.TARGET}

${CRUNCHBIN}.cache: ${CRUNCHBIN}.mk
	[ ! -f ${.TARGET} ] || touch ${.TARGET}

${CRUNCHBIN}.mk: ${CRUNCHBIN}.conf .PHONY
	${CRUNCHENV} ${TOOL_CRUNCHGEN} -f -D ${NETBSDSRCDIR} \
	    -L ${DESTDIR}/usr/lib -q ${CRUNCHGEN_FLAGS} ${.ALLSRC}

${CRUNCHBIN}.conf: ${LISTS} ${PARSELISTDEP}
	-rm -f ${.TARGET} ${.TARGET}.tmp
	${PARSELIST} -v mode=crunch ${LISTS} > ${.TARGET}.tmp \
	&& mv ${.TARGET}.tmp ${.TARGET}

CLEANFILES+=	${CRUNCHBIN} ${CRUNCHBIN}.conf ${CRUNCHBIN}.conf.tmp \
		${CRUNCHBIN}.cache *.o *.cro *.c

clean cleandir distclean: cleancrunchgen

.PHONY: cleancrunchgen

cleancrunchgen:
	if [ -f ${CRUNCHBIN}.mk ]; then \
		${MAKE} -f ${CRUNCHBIN}.mk clean; \
	fi
	rm -f ${CRUNCHBIN}.mk


.endif	# _MAKEFILE_CRUNCH_