freebsd-dev/Makefile.inc0
John Birrell 11fb97daa7 E-day build system changes.
- Moved most of the guts of Makefile to Makefile.inc1 to become the
  backend for the build system.
- The new Makefile doesn't suffer from problems including the wrong
  sys.mk because it doesn't use anything in there or bsd.own.mk. So,
  from now on, the proper build command is just `make world' (or
  buildworld).
- The intermediate makefiles called Makefile.inc0 and Makefile.upgrade
  fiddle with the OBJFORMAT and MAKEOBJDIRPREFIX variables so that
  both aout and elf object trees can coexist. Makefile.upgrade contains
  the aout->elf transition build.
- A cross build environment is now very close to reality. Specifying
  TOOLDIR, setting OBJFORMAT and MAKEOBJDIRPREFIX allow that.

See the comments in Makefile for more info.
1998-08-31 01:08:08 +00:00

110 lines
3.6 KiB
Makefile

#
# $Id$
#
# This makefile ensures that the object directory is set according to the
# object format to avoid mixing aout and elf formatted files during the
# transition period.
#
# >> Beware, this makefile overwrites the local build environment! <<
#
#
# Build things relative to the user's preferred object directory,
# defaulting to /usr/obj if not defined.
#
MAKEOBJDIRPREFIX?=/usr/obj
#
# Variables passed to make work better if they are set as environment
# variables instead of command line options.
#
MK_ENV= MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/${OBJFORMAT}
#
# We should always use the current set of mk files, not the installed ones.
# This makefile is a wrapper for the backend makefile (Makefile.inc1).
#
MAKE= make -m ${.CURDIR}/share/mk -f Makefile.inc1
#
# These are the backend targets.
#
BKTGTS= all depend everything includes install installmost most obj update
#
# A generic rule for the backend targets.
#
${BKTGTS} :
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} ${.TARGET}
#
# Temporary path and environment for the legacy build.
#
ELFTMPPATH= ${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp/sbin:${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp/bin:${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp/usr/sbin:${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp/usr/bin:${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp/usr/games
LEGACY_ENV= MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}/aout \
PATH=${ELFTMPPATH} OBJFORMAT=aout NOTOOLS=1 \
TOOLROOT=${MAKEOBJDIRPREFIX}/elf${.CURDIR}/tmp
#
# world
#
# Attempt to rebuild and reinstall *everything*, with reasonable chance of
# success, regardless of how old your existing system is. If building on
# an i386/elf system, build the aout legacy cruft too.
#
world:
@echo "--------------------------------------------------------------"
@echo " ${OBJFORMAT} make world started on `LC_TIME=C date`"
@echo "--------------------------------------------------------------"
.if target(pre-world)
@echo
@echo "--------------------------------------------------------------"
@echo " Making 'pre-world' target"
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} pre-world
.endif
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} buildworld
.if ${MACHINE_ARCH} == "i386" && ${OBJFORMAT} == "elf" && !defined(NOAOUT)
@cd ${.CURDIR}; ${LEGACY_ENV} ${MAKE} legacy-build
.endif
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} -B installworld
.if ${MACHINE_ARCH} == "i386" && ${OBJFORMAT} == "elf" && !defined(NOAOUT)
@cd ${.CURDIR}; ${LEGACY_ENV} ${MAKE} legacy-install
.endif
.if target(post-world)
@echo
@echo "--------------------------------------------------------------"
@echo " Making 'post-world' target"
@echo "--------------------------------------------------------------"
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} post-world
.endif
@echo
@echo "--------------------------------------------------------------"
@echo " ${OBJFORMAT} make world completed on `LC_TIME=C date`"
@echo "--------------------------------------------------------------"
#
# buildworld
#
# Build the world in the current object format, plus the legacy aout
# support if the current object format is elf on i386.
#
buildworld :
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} buildworld
.if ${MACHINE_ARCH} == "i386" && ${OBJFORMAT} == "elf" && !defined(NOAOUT)
@cd ${.CURDIR}; ${LEGACY_ENV} ${MAKE} legacy-build
.endif
#
# installworld
#
# Install the world in the current object format, plus the legacy aout
# support if the current object format is elf on i386.
#
installworld :
@cd ${.CURDIR}; ${MK_ENV} ${MAKE} installworld
.if ${MACHINE_ARCH} == "i386" && ${OBJFORMAT} == "elf" && !defined(NOAOUT)
@cd ${.CURDIR}; ${LEGACY_ENV} ${MAKE} -DNOMAN -DNOINFO legacy-install
.endif