NetBSD/build.sh

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#! /usr/bin/env sh
# $NetBSD: build.sh,v 1.90 2003/02/06 22:19:06 enami Exp $
#
# Copyright (c) 2001-2003 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Todd Vierling and Luke Mewburn.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the NetBSD
# Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# Top level build wrapper, for a system containing no tools.
#
# This script should run on any POSIX-compliant shell. For systems
# with a strange /bin/sh, "ksh" or "bash" may be an ample alternative.
#
# Note, however, that due to the way the interpreter is invoked above,
# if a POSIX-compliant shell is the first in the PATH, you won't have
# to take any further action.
#
progname=${0##*/}
toppid=$$
trap "exit 1" 1 2 3 15
bomb()
{
cat >&2 <<ERRORMESSAGE
ERROR: $@
*** BUILD ABORTED ***
ERRORMESSAGE
kill $toppid # in case we were invoked from a subshell
exit 1
}
initdefaults()
{
cd "$(dirname $0)"
[ -d usr.bin/make ] ||
bomb "build.sh must be run from the top source level"
[ -f share/mk/bsd.own.mk ] ||
bomb "src/share/mk is missing; please re-fetch the source tree"
uname_s=$(uname -s 2>/dev/null)
uname_m=$(uname -m 2>/dev/null)
# If $PWD is a valid name of the current directory, POSIX mandates
# that pwd return it by default which causes problems in the
# presence of symlinks. Unsetting PWD is simpler than changing
# every occurrence of pwd to use -P.
#
# XXX Except that doesn't work on Solaris.
unset PWD
if [ "${uname_s}" = "SunOS" ]; then
TOP=$(pwd -P)
else
TOP=$(pwd)
fi
# Set defaults.
toolprefix=nb
MAKEFLAGS=
makeenv=
makewrapper=
runcmd=
operations=
removedirs=
do_expertmode=false
do_rebuildmake=false
do_removedirs=false
# do_{operation}=true if given operation is requested.
#
do_tools=false
do_obj=false
do_build=false
do_distribution=false
do_release=false
do_kernel=false
do_install=false
do_sets=false
}
getarch()
{
# Translate a MACHINE into a default MACHINE_ARCH.
#
case $MACHINE in
acorn26|acorn32|cats|netwinder|shark|*arm)
MACHINE_ARCH=arm
;;
sun2)
MACHINE_ARCH=m68000
;;
amiga|atari|cesfic|hp300|sun3|*68k)
MACHINE_ARCH=m68k
;;
mipsco|newsmips|sbmips|sgimips)
MACHINE_ARCH=mipseb
;;
algor|arc|cobalt|evbmips|hpcmips|playstation2|pmax)
MACHINE_ARCH=mipsel
;;
pc532)
MACHINE_ARCH=ns32k
;;
bebox|prep|sandpoint|*ppc)
MACHINE_ARCH=powerpc
;;
evbsh3|mmeye)
MACHINE_ARCH=sh3eb
;;
dreamcast|hpcsh)
MACHINE_ARCH=sh3el
;;
hp700)
MACHINE_ARCH=hppa
;;
evbsh5)
MACHINE_ARCH=sh5el
;;
alpha|i386|sparc|sparc64|vax|x86_64)
MACHINE_ARCH=$MACHINE
;;
*)
bomb "unknown target MACHINE: $MACHINE"
;;
esac
}
validatearch()
{
# Ensure that the MACHINE_ARCH exists (and is supported by build.sh).
#
case $MACHINE_ARCH in
alpha|arm|armeb|hppa|i386|m68000|m68k|mipse[bl]|ns32k|powerpc|sh[35]e[bl]|sparc|sparc64|vax|x86_64)
;;
*)
bomb "unknown target MACHINE_ARCH: $MACHINE_ARCH"
;;
esac
}
getmakevar()
{
[ -x $make ] || bomb "getmakevar $1: $make is not executable"
$make -m ${TOP}/share/mk -s -f- _x_ <<EOF
_x_:
echo \${$1}
.include <bsd.prog.mk>
.include <bsd.kernobj.mk>
EOF
}
safe_getmakevar()
{
# getmakevar() doesn't work properly if $make hasn't yet been built,
# which can happen when running with the "-n" option.
# safe_getmakevar() deals with this by emitting a literal '$'
# followed by the variable name, instead of trying to find the
# variable's value.
#
if [ -x $make ]; then
getmakevar "$1"
else
echo "\$$1"
fi
}
resolvepath()
{
case $OPTARG in
/*)
;;
*)
OPTARG="$TOP/$OPTARG"
;;
esac
}
usage()
{
if [ -n "$*" ]; then
echo ""
echo "${progname}: $*"
fi
cat <<_usage_
Usage: ${progname} [-EnorUu] [-a arch] [-B buildid] [-D dest] [-j njob] [-M obj]
[-m mach] [-O obj] [-R release] [-T tools] [-V var=[value]]
[-w wrapper] operation [...]
Build operations (all imply "obj" and "tools"):
build Run "make build"
distribution Run "make distribution" (includes DESTDIR/etc/ files)
release Run "make release" (includes kernels & distrib media)
Other operations:
help Show this message (and exit)
makewrapper Create ${toolprefix}make-\${MACHINE} wrapper and ${toolprefix}make.
(Always done)
obj Run "make obj" (default unless -o is used)
tools Build and install tools
kernel=conf Build kernel with config file \`conf'
install=idir Run "make installworld" to \`idir'
(useful after 'distribution' or 'release')
sets Create distribution sets in RELEASEDIR
Options:
-a arch Set MACHINE_ARCH to arch (otherwise deduced from MACHINE)
-B buildId Set BUILDID to buildId
-D dest Set DESTDIR to dest
-E Set "expert" mode; disables some DESTDIR checks
-j njob Run up to njob jobs in parallel; see make(1)
-M obj Set obj root directory to obj (sets MAKEOBJDIRPREFIX)
-m mach Set MACHINE to mach (not required if NetBSD native)
-n Show commands that would be executed, but do not execute them
-O obj Set obj root directory to obj (sets a MAKEOBJDIR pattern)
-o Set MKOBJDIRS=no (do not create objdirs at start of build)
-R release Set RELEASEDIR to release
-r Remove contents of TOOLDIR and DESTDIR before building
-T tools Set TOOLDIR to tools. If unset, and TOOLDIR is not set in
the environment, ${toolprefix}make will be (re)built unconditionally
-U Set UNPRIVED (build without requiring root privileges)
-u Set UPDATE (do not run "make clean" first)
-V v=[val] Set variable \`v' to \`val'
-w wrapper Create ${toolprefix}make script as wrapper
(Default: \${TOOLDIR}/bin/${toolprefix}make-\${MACHINE})
_usage_
exit 1
}
parseoptions()
{
opts='a:B:bD:dEhi:j:k:M:m:nO:oR:rT:tUuV:w:'
opt_a=no
if type getopts >/dev/null 2>&1; then
# Use POSIX getopts.
getoptcmd='getopts $opts opt && opt=-$opt'
optargcmd=':'
optremcmd='shift $(($OPTIND -1))'
else
type getopt >/dev/null 2>&1 ||
bomb "/bin/sh shell is too old; try ksh or bash"
# Use old-style getopt(1) (doesn't handle whitespace in args).
args="$(getopt $opts $*)"
[ $? = 0 ] || usage
set -- $args
getoptcmd='[ $# -gt 0 ] && opt="$1" && shift'
optargcmd='OPTARG="$1"; shift'
optremcmd=':'
fi
# Parse command line options.
#
while eval $getoptcmd; do
case $opt in
-a)
eval $optargcmd
MACHINE_ARCH=$OPTARG
opt_a=yes
;;
-B)
eval $optargcmd
BUILDID=$OPTARG
;;
-b)
usage "'-b' has been replaced by 'makewrapper'"
;;
-D)
eval $optargcmd; resolvepath
DESTDIR="$OPTARG"
export DESTDIR
makeenv="$makeenv DESTDIR"
;;
-d)
usage "'-d' has been replaced by 'distribution'"
;;
-E)
do_expertmode=true
;;
-i)
usage "'-i idir' has been replaced by 'install=idir'"
;;
-j)
eval $optargcmd
parallel="-j $OPTARG"
;;
-k)
usage "'-k conf' has been replaced by 'kernel=conf'"
;;
-M)
eval $optargcmd; resolvepath
MAKEOBJDIRPREFIX="$OPTARG"
export MAKEOBJDIRPREFIX
makeobjdir=$OPTARG
makeenv="$makeenv MAKEOBJDIRPREFIX"
;;
# -m overrides MACHINE_ARCH unless "-a" is specified
-m)
eval $optargcmd
MACHINE=$OPTARG
[ "$opt_a" != "yes" ] && getarch
;;
-n)
runcmd=echo
;;
-O)
eval $optargcmd; resolvepath
MAKEOBJDIR="\${.CURDIR:C,^$TOP,$OPTARG,}"
export MAKEOBJDIR
makeobjdir=$OPTARG
makeenv="$makeenv MAKEOBJDIR"
;;
-o)
MKOBJDIRS=no
;;
-R)
eval $optargcmd; resolvepath
RELEASEDIR=$OPTARG
export RELEASEDIR
makeenv="$makeenv RELEASEDIR"
;;
-r)
do_removedirs=true
do_rebuildmake=true
;;
-T)
eval $optargcmd; resolvepath
TOOLDIR="$OPTARG"
export TOOLDIR
;;
-t)
usage "'-t' has been replaced by 'tools'"
;;
-U)
UNPRIVED=yes
export UNPRIVED
makeenv="$makeenv UNPRIVED"
;;
-u)
UPDATE=yes
export UPDATE
makeenv="$makeenv UPDATE"
;;
-V)
eval $optargcmd
case "${OPTARG}" in
# XXX: consider restricting which variables can be changed?
[a-zA-Z_][a-zA-Z_0-9]*=*)
var=${OPTARG%%=*}
value=${OPTARG#*=}
eval "${var}=\"${value}\"; export ${var}"
makeenv="$makeenv ${var}"
;;
*)
usage "-V argument must be of the form 'var=[value]'"
;;
esac
;;
-w)
eval $optargcmd; resolvepath
makewrapper="$OPTARG"
;;
--)
break
;;
-'?'|-h)
usage
;;
esac
done
# Validate operations.
#
eval $optremcmd
while [ $# -gt 0 ]; do
op=$1; shift
operations="$operations $op"
case "$op" in
help)
usage
;;
makewrapper|obj|tools|build|distribution|release|sets)
;;
kernel=*)
arg=${op#*=}
op=${op%%=*}
if [ -z "${arg}" ]; then
bomb "Must supply a kernel name with \`kernel=...'"
fi
;;
install=*)
arg=${op#*=}
op=${op%%=*}
if [ -z "${arg}" ]; then
bomb "Must supply a directory with \`install=...'"
fi
;;
*)
usage "Unknown operation \`${op}'"
;;
esac
eval do_$op=true
done
if [ -z "${operations}" ]; then
usage "Missing operation to perform."
fi
# Set up MACHINE*. On a NetBSD host, these are allowed to be unset.
#
if [ -z "$MACHINE" ]; then
if [ "${uname_s}" != "NetBSD" ]; then
bomb "MACHINE must be set, or -m must be used, for cross builds."
fi
MACHINE=${uname_m}
fi
[ -n "$MACHINE_ARCH" ] || getarch
validatearch
# Set up default make(1) environment.
#
makeenv="$makeenv TOOLDIR MACHINE MACHINE_ARCH MAKEFLAGS"
if [ ! -z "$BUILDID" ]; then
makeenv="$makeenv BUILDID"
fi
MAKEFLAGS="-m $TOP/share/mk $MAKEFLAGS MKOBJDIRS=${MKOBJDIRS-yes}"
export MAKEFLAGS MACHINE MACHINE_ARCH
}
rebuildmake()
{
# Test make source file timestamps against installed ${toolprefix}make
# binary, if TOOLDIR is pre-set.
#
# Note that we do NOT try to grovel "mk.conf" here to find out if
# TOOLDIR is set there, because it can contain make variable
# expansions and other stuff only parseable *after* we have a working
# ${toolprefix}make. So this logic can only work if the user has
# pre-set TOOLDIR in the environment or used the -T option to build.sh.
#
make="${TOOLDIR-nonexistent}/bin/${toolprefix}make"
if [ -x $make ]; then
for f in usr.bin/make/*.[ch] usr.bin/make/lst.lib/*.[ch]; do
if [ $f -nt $make ]; then
do_rebuildmake=true
break
fi
done
else
do_rebuildmake=true
fi
# Build bootstrap ${toolprefix}make if needed.
if $do_rebuildmake; then
$runcmd echo "===> Bootstrapping ${toolprefix}make"
tmpdir="${TMPDIR-/tmp}/nbbuild$$"
$runcmd mkdir "$tmpdir" || bomb "cannot mkdir: $tmpdir"
trap "cd /; rm -r -f \"$tmpdir\"" 0
$runcmd cd "$tmpdir"
$runcmd env CC="${HOST_CC-cc}" CPPFLAGS="${HOST_CPPFLAGS}" \
CFLAGS="${HOST_CFLAGS--O}" LDFLAGS="${HOST_LDFLAGS}" \
"$TOP/tools/make/configure" ||
bomb "configure of ${toolprefix}make failed"
$runcmd sh buildmake.sh ||
bomb "build of ${toolprefix}make failed"
make="$tmpdir/${toolprefix}make"
$runcmd cd "$TOP"
$runcmd rm -f usr.bin/make/*.o usr.bin/make/lst.lib/*.o
fi
}
validatemakeparams()
{
if [ "$runcmd" = "echo" ]; then
TOOLCHAIN_MISSING=no
EXTERNAL_TOOLCHAIN=""
else
TOOLCHAIN_MISSING=$(getmakevar TOOLCHAIN_MISSING)
EXTERNAL_TOOLCHAIN=$(getmakevar EXTERNAL_TOOLCHAIN)
fi
if [ "${TOOLCHAIN_MISSING}" = "yes" ] && \
[ -z "${EXTERNAL_TOOLCHAIN}" ]; then
$runcmd echo "ERROR: build.sh (in-tree cross-toolchain) is not yet available for"
$runcmd echo " MACHINE: ${MACHINE}"
$runcmd echo " MACHINE_ARCH: ${MACHINE_ARCH}"
$runcmd echo ""
$runcmd echo "All builds for this platform should be done via a traditional make"
$runcmd echo "If you wish to use an external cross-toolchain, set"
$runcmd echo " EXTERNAL_TOOLCHAIN=<path to toolchain root>"
$runcmd echo "in either the environment or mk.conf and rerun"
$runcmd echo " $progname $*"
exit 1
fi
# If TOOLDIR isn't already set, make objdirs in "tools" in case the
# default setting from <bsd.own.mk> is used.
#
if [ -z "$TOOLDIR" ] && [ "$MKOBJDIRS" != "no" ]; then
$runcmd cd tools
$runcmd $make -m ${TOP}/share/mk obj NOSUBDIR= ||
bomb "make obj failed in tools"
$runcmd cd "$TOP"
fi
# If setting -M or -O to root an obj dir make sure the base directory
# is made before continuing as bsd.own.mk will need this to pick up
# _SRC_TOP_OBJ_
#
if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
$runcmd mkdir -p "$makeobjdir"
fi
# Find DESTDIR and TOOLDIR.
#
DESTDIR=$(safe_getmakevar DESTDIR)
$runcmd echo "===> DESTDIR path: $DESTDIR"
TOOLDIR=$(safe_getmakevar TOOLDIR)
$runcmd echo "===> TOOLDIR path: $TOOLDIR"
export DESTDIR TOOLDIR
# Check validity of TOOLDIR and DESTDIR.
#
if [ -z "$TOOLDIR" ] || [ "$TOOLDIR" = "/" ]; then
bomb "TOOLDIR '$TOOLDIR' invalid"
fi
removedirs="$TOOLDIR"
if [ -z "$DESTDIR" ] || [ "$DESTDIR" = "/" ]; then
if $do_build || $do_distribution || $do_release; then
if ! $do_build || \
[ "${uname_s}" != "NetBSD" ] || \
[ "${uname_m}" != "$MACHINE" ]; then
bomb "DESTDIR must != / for cross builds, or ${progname} 'distribution' or 'release'."
fi
if ! $do_expertmode; then
bomb "DESTDIR must != / for non -E (expert) builds"
fi
$runcmd echo "===> WARNING: Building to /, in expert mode."
$runcmd echo "===> This may cause your system to break! Reasons include:"
$runcmd echo "===> - your kernel is not up to date"
$runcmd echo "===> - the libraries or toolchain have changed"
$runcmd echo "===> YOU HAVE BEEN WARNED!"
fi
else
removedirs="$removedirs $DESTDIR"
fi
if $do_build || $do_distribution || $do_release; then
if ! $do_expertmode && \
[ $(id -u 2>/dev/null) -ne 0 ] &&\
[ -z "$UNPRIVED" ] ; then
bomb "-U or -E must be set for build as an unprivileged user."
fi
fi
}
createmakewrapper()
{
# Remove the target directories.
#
if $do_removedirs; then
for f in $removedirs; do
$runcmd echo "===> Removing $f"
$runcmd rm -r -f $f
done
fi
# Recreate $TOOLDIR.
#
$runcmd mkdir -p "$TOOLDIR/bin" || bomb "mkdir of '$TOOLDIR/bin' failed"
# Install ${toolprefix}make if it was built.
#
if $do_rebuildmake; then
$runcmd rm -f "$TOOLDIR/bin/${toolprefix}make"
$runcmd cp $make "$TOOLDIR/bin/${toolprefix}make" ||
bomb "failed to install \$TOOLDIR/bin/${toolprefix}make"
make="$TOOLDIR/bin/${toolprefix}make"
$runcmd echo "===> Created ${make}"
$runcmd rm -r -f "$tmpdir"
trap 0
fi
# Build a ${toolprefix}make wrapper script, usable by hand as
# well as by build.sh.
#
if [ -z "$makewrapper" ]; then
makewrapper="$TOOLDIR/bin/${toolprefix}make-$MACHINE"
if [ ! -z "$BUILDID" ]; then
makewrapper="$makewrapper-$BUILDID"
fi
fi
$runcmd rm -f "$makewrapper"
if [ "$runcmd" = "echo" ]; then
echo 'cat <<EOF >'$makewrapper
makewrapout=
else
makewrapout=">>\$makewrapper"
fi
eval cat <<EOF $makewrapout
#! /bin/sh
# Set proper variables to allow easy "make" building of a NetBSD subtree.
# Generated from: \$NetBSD: build.sh,v 1.90 2003/02/06 22:19:06 enami Exp $
#
EOF
for f in $makeenv; do
eval echo "$f=\'\$$(echo $f)\'\;\ export\ $f" $makewrapout
done
eval echo "USETOOLS=yes\; export USETOOLS" $makewrapout
eval cat <<EOF $makewrapout
exec "\$TOOLDIR/bin/${toolprefix}make" \${1+"\$@"}
EOF
[ "$runcmd" = "echo" ] && echo EOF
$runcmd chmod +x "$makewrapper"
$runcmd echo "===> Updated ${makewrapper}"
}
buildtools()
{
if [ "$MKOBJDIRS" != "no" ]; then
$runcmd "$makewrapper" $parallel obj-tools ||
bomb "failed to make obj-tools"
fi
$runcmd cd tools
if [ -z "$UPDATE" ]; then
cleandir=cleandir
else
cleandir=
fi
$runcmd "$makewrapper" ${cleandir} dependall install ||
bomb "failed to make tools"
}
buildkernel()
{
kernconf="$1"
if ! $do_tools; then
# Building tools every time we build a kernel is clearly
# unnecessary. We could try to figure out whether rebuilding
# the tools is necessary this time, but it doesn't seem worth
# the trouble. Instead, we say it's the user's responsibility
# to rebuild the tools if necessary.
#
$runcmd echo "===> Building kernel without building new tools"
fi
$runcmd echo "===> Building kernel ${kernconf}"
if [ "$MKOBJDIRS" != "no" ] && [ ! -z "$makeobjdir" ]; then
# The correct value of KERNOBJDIR might
# depend on a prior "make obj" in
# ${KERNSRCDIR}/${KERNARCHDIR}/compile.
#
KERNSRCDIR="$(safe_getmakevar KERNSRCDIR)"
KERNARCHDIR="$(safe_getmakevar KERNARCHDIR)"
$runcmd cd "${KERNSRCDIR}/${KERNARCHDIR}/compile"
$runcmd "$makewrapper" obj ||
bomb "failed to make obj in ${KERNSRCDIR}/${KERNARCHDIR}/compile"
$runcmd cd "$TOP"
fi
KERNCONFDIR="$(safe_getmakevar KERNCONFDIR)"
KERNOBJDIR="$(safe_getmakevar KERNOBJDIR)"
case "${kernconf}" in
*/*)
kernconfpath="${kernconf}"
kernconfbase="$(basename "${kernconf}")"
;;
*)
kernconfpath="${KERNCONFDIR}/${kernconf}"
kernconfbase="${kernconf}"
;;
esac
kernbuilddir="${KERNOBJDIR}/${kernconfbase}"
$runcmd echo "===> Kernel build directory: ${kernbuilddir}"
$runcmd mkdir -p "${kernbuilddir}" ||
bomb "cannot mkdir: ${kernbuilddir}"
if [ -z "$UPDATE" ]; then
$runcmd cd "${kernbuilddir}"
$runcmd "$makewrapper" cleandir ||
bomb "make cleandir failed in ${kernbuilddir}"
$runcmd cd "$TOP"
fi
$runcmd "${TOOLDIR}/bin/${toolprefix}config" -b "${kernbuilddir}" \
-s "${TOP}/sys" "${kernconfpath}" ||
bomb "${toolprefix}config failed for ${kernconf}"
$runcmd cd "${kernbuilddir}"
$runcmd "$makewrapper" depend ||
bomb "make depend failed in ${kernbuilddir}"
$runcmd "$makewrapper" $parallel all ||
bomb "make all failed in ${kernbuilddir}"
$runcmd echo "===> New kernel should be in:"
$runcmd echo " ${kernbuilddir}"
}
installworld()
{
dir="$1"
${runcmd} "$makewrapper" INSTALLWORLDDIR="${dir}" installworld ||
bomb "failed to make installworld to ${dir}"
}
main()
{
initdefaults
parseoptions "$@"
rebuildmake
validatemakeparams
createmakewrapper
# Perform the operations.
#
for op in $operations; do
case "$op" in
makewrapper)
# no-op
;;
tools)
buildtools
;;
obj|build|distribution|release|sets)
${runcmd} "$makewrapper" $parallel $op ||
bomb "failed to make $op"
;;
kernel=*)
arg=${op#*=}
buildkernel "${arg}"
;;
install=*)
arg=${op#*=}
if [ "${arg}" = "/" ] && \
( [ "${uname_s}" != "NetBSD" ] || \
[ "${uname_m}" != "$MACHINE" ] ); then
bomb "'${op}' must != / for cross builds."
fi
installworld "${arg}"
;;
*)
bomb "Unknown operation \`${op}'"
;;
esac
done
}
main "$@"