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|
#!@SH@
#
# $NetBSD: autoswc.sh,v 1.2 2004/10/15 20:00:57 tv Exp $
#
# autoswc - Generates system wide cache files for GNU autoconf
# Copyright (c) 2004 Julio M. Merino Vidal <jmmv@NetBSD.org>
#
# 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. Neither the name of author 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.
#
ProgName=${0##*/}
err() {
echo "${ProgName}: $*" 1>&2
exit 1
}
info() {
echo "${ProgName}: $*" 1>&2
}
mktempdir() {
local d tmpdir
# Check if mktemp exists in the current system.
for d in $(echo ${PATH} | tr ':' ' '); do
if [ -x $d/mktemp ]; then
$d/mktemp -d /tmp/autoswc.XXXX
return
fi
done
# Emulate mktemp; this is not safe.
info "mktemp(1) not found; race conditions may appear"
tmpdir=/tmp/autoswc.$$
mkdir -p ${tmpdir}
chmod 700 ${tmpdir}
echo ${tmpdir}
}
usage() {
echo "Usage: ${ProgName} [-c ac_file] [-n cache_name]" 1>&2
exit 1
}
# -------------------------------------------------------------------------
# Main program
cachename="default"
confsrc="@PREFIX@/share/autoswc/configure.ac"
[ -f "@SYSCONFDIR@/configure.ac" ] && confsrc="@SYSCONFDIR@/configure.ac"
# Parse command line options
args=$(getopt c:n: $*)
[ $? -ne 0 ] && usage
set -- ${args}
while [ $# -gt 0 ]; do
case "$1" in
-c)
confsrc="$2"; shift
;;
-n)
cachename="$2"; shift
;;
--)
shift; break
;;
esac
shift
done
[ $# -gt 0 ] && usage
# Set the cache name.
confcache="@CACHEDIR@/config.cache.${cachename}"
# Check if we will be able to store the resulting cache file.
# The permissions may change during the execution of this script, but this
# won't bring us problems. This check is just done to save some time in
# case we got the wrong user running autoswc.
touch ${confcache} >/dev/null 2>&1 || err "can't update ${confcache}"
# Ensure that the source configure.ac exists.
[ ! -f ${confsrc} ] && err "${confsrc} does not exist"
# Create work directory.
wrkdir=$(mktempdir)
info "using ${wrkdir} as work directory"
cd ${wrkdir}
# Create work project. This includes:
# - Makefile.am - empty, just needs to be present.
# - configure.ac - the user-defined configure.ac file, modified to include
# basic and required macros.
# - NEWS README AUTHORS ChangeLog - empty, just need to be present.
echo "# empty" >Makefile.am
echo "AC_INIT(configure.ac)" >configure.ac
echo "AM_INIT_AUTOMAKE" >>configure.ac
cat ${confsrc} >>configure.ac
echo "AC_CACHE_SAVE" >>configure.ac
echo "AC_OUTPUT(Makefile)" >>configure.ac
touch NEWS README AUTHORS ChangeLog
# Generate scripts and add missing files.
info "running @ACLOCAL@..."
@ACLOCAL@
if grep LIBTOOL configure.ac >/dev/null 2>&1; then
info "running @LIBTOOLIZE@..."
@LIBTOOLIZE@ --force
fi
info "running @AUTOMAKE@..."
@AUTOMAKE@ --add-missing --force-missing
info "running @AUTOCONF@..."
@AUTOCONF@
# Run the configure script.
[ ! -f configure ] && err "autoconf failed"
CONFIG_SITE= ./configure --cache-file=config.cache \
--build=@MACHINE_GNU_PLATFORM@ --host=@MACHINE_GNU_PLATFORM@ || \
err "configure failed"
mv config.cache config.cache.in
# Prune the cache file from entries that will abort configure scripts when
# running from within pkgsrc. This is not 100% safe, because configure is
# right in warning from changed values, but is needed to get this working.
grep -v "^ac_cv_env" <config.cache.in >config.cache
# Update the cache file. We don't give it write permissions since we don't
# want third-party configure scripts update it with unwanted results.
install -c -m 444 config.cache ${confcache} || err "can't update ${confcache}"
cd -
rm -rf ${wrkdir}
# Start of summary.
cat <<EOF
===========================================================================
AUTOSWC - SUMMARY FOR \`${cachename}' CACHE
${confcache} updated successfully.
EOF
# Warn the user if autoswc.mk is not included from mk.conf.
if ! egrep '^.-?[ \t]*s?include[ \t]+"@PREFIX@/share/autoswc/autoswc.mk"' \
@MKCONF@ >/dev/null 2>&1; then
cat <<EOF
The @MKCONF@ file seems to not include autoswc.mk. This means that
configure scripts will not find the generated cache file. Add the
following line to it:
.sinclude "@PREFIX@/share/autoswc/autoswc.mk"
EOF
fi
# Tell the user to define AUTOSWC_CACHE_NAME if he used a custom cache
# name.
if [ ${cachename} != default ]; then
cat <<EOF
You have used a non-standard cache name. To let configure scripts
find it, you should add the following line somewhere in your
@MKCONF@ file, in case it is not there yet:
AUTOSWC_CACHE_NAME= ${cachename}
EOF
fi
# Warn the user about the dangers of using a system wide cache file.
cat <<EOF
Please remember that by using a system wide cache file, you assume
that the results stored in it may get outdated and cause strange build
failures in third-party packages. When reporting bugs, be absolutely
sure it is not your fault. Check the autoswc(8) manpage for more
details.
===========================================================================
EOF
exit 0
# vim: syntax=sh:expandtab:shiftwidth=4:softtabstop=4
|
