libtool/bootstrap

#! /bin/sh
# bootstrap -- Helps bootstrapping libtool, when checked out from CVS.
#
# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc,
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.

# It is okay for the bootstrap process to require unreleased autoconf
# or automake, as long as any released libtool will work with at least
# the newest stable versions of each.  Generally, newer versions offer
# better features, and configure.ac documents oldest version of each
# required for bootstrap (AC_PREREQ, and AM_INIT_AUTOMAKE).

: ${AUTORECONF=autoreconf}
: ${AUTOM4TE=autom4te}
: ${MAKE=make}
: ${GREP=grep}
: ${EGREP=egrep}
: ${FGREP=fgrep}
: ${SED=sed}
: ${LN_S='ln -s'}
: ${MAKEINFO=makeinfo}

test -f ./configure.ac || {
  echo "bootstrap: can't find ./configure.ac, please rerun from top_srcdir"
  exit 1
}


# Extract auxdir and m4dir from configure.ac:
my_sed_traces='s,#.*$,,; s,^dnl .*$,,; s, dnl .*$,,;
    	/AC_CONFIG_AUX_DIR[^_]/  {
	    s,^.*AC_CONFIG_AUX_DIR([[ 	]*\([^])]*\).*$,auxdir=\1,; p;
        };
    	/AC_CONFIG_MACRO_DIR/   {
	    s,^.*AC_CONFIG_MACRO_DIR([[ 	]*\([^])]*\).*$,m4dir=\1,; p;
        };
	d;'
eval `cat configure.ac 2>/dev/null | $SED "$my_sed_traces"`


# Upgrade caveat:
cat <<'EOF'
WARNING: If bootstrapping with this script fails, it may be due to an
WARNING: incompatible installed `libtool.m4' being pulled in to
WARNING: `aclocal.m4'.  The best way to work around such a problem is to
WARNING: uninstall your system libtool files, or failing that, overwrite
WARNING: them with all m4 file as shipped with this distribution (except
WARNING: `lt~obsolete.m4').  After that, retry this bootstrap.
EOF

rm -rf `find . -path './{arch}' -prune -o \( -name autom4te.cache -o -name libtool \) -print`

# Delete stale files from previous libtool versions.
rm -f acinclude.m4 libltdl/config.h

if test -z "$reconfdirs"; then
  reconfdirs=". libltdl `ls -1d tests/*demo tests/*demo[0-9]`"
fi

# Extract the package name and version number from configure.ac:
set dummy `$SED '/AC_INIT/{s/[][,()]/ /g; p;};d' configure.ac`
shift

# Whip up a dirty Makefile:
test -f Makefile \
  || $SED '/^if /,/^endif$/d;/^else$/,/^endif$/d' Makefile.am > Makefile

# Building distributed files from configure is bad for automake, so we
# generate them here, and have Makefile rules to keep them up to date.
# We don't have all the substitution values to build ltmain.sh from this
# script yet, but we need config/ltmain.sh for the libtool commands in
# configure, and ltversion.m4 to generate configure in the first place:
rm -f $auxdir/ltmain.sh $m4dir/ltversion.m4

$MAKE $auxdir/ltmain.sh $m4dir/ltversion.m4 ./doc/notes.txt \
    ./libtoolize.in ./tests/defs.in ./tests/package.m4 \
    ./tests/testsuite ./libltdl/Makefile.am \
    srcdir=. top_srcdir=. PACKAGE="$2" VERSION="$3" \
    PACKAGE_BUGREPORT="bug-$2@gnu.org" M4SH="$AUTOM4TE --language=m4sh" \
    AUTOTEST="$AUTOM4TE --language=autotest" SED="$SED" MAKEINFO="$MAKEINFO"

test -f clcommit.m4sh && $MAKE -f Makefile.maint commit \
    srcdir=. top_srcdir=. PACKAGE="$2" VERSION="$3" M4SH="$AUTOM4TE -l m4sh" \
    SED="$SED" GREP="$GREP" FGREP="$FGREP" EGREP="$EGREP" LN_S="$LN_S"

rm -f Makefile

# Make a dummy libtoolize script for autoreconf:
test -f clcommit.m4sh && cat > $auxdir/libtoolize <<'EOF'
#! /bin/sh
# This is a dummy file for bootstrapping CVS libtool.
echo "$0: Bootstrap detected, no files installed." | sed 's,^.*/,,g'
exit 0
EOF
chmod 755 $auxdir/libtoolize

# Running the installed `libtoolize' will trash the local (newer) libtool.m4
# among others.  Call the dummy script we made earlier.
LIBTOOLIZE=`pwd`/$auxdir/libtoolize
export LIBTOOLIZE

for sub in $reconfdirs; do
  $AUTORECONF --force --verbose --install $sub
done

# Autoheader valiantly tries to prevent needless reconfigurations by
# not changing the timestamp of config-h.in unless the file contents
# are updated.  Unfortunately config-h.in depends on aclocal.m4 which
# *is* updated, so running 'libtoolize --ltdl=. && configure && make'
# causes autoheader to be called... undesireable for users that do not
# have it!  Fudge the timestamp to prevent that:
sleep 2 && touch libltdl/config-h.in

# Remove our dummy libtoolize
rm -f $auxdir/libtoolize

# These files can cause an infinite configure loop if left behind.
rm -f Makefile libltdl/Makefile libtool vcl.tmp

# This file is misgenerated earlier in bootstrap to satisfy automake 1.9.1
# and earlier, but has a new enough timestamp to not be updated.  Force it
# to be regenerated at make-time with proper substitutions in place:
touch $auxdir/ltmain.in

# Commit script caveat:
cat <<'EOF'
WARNING: You might want to regenerate `commit' and `config/mailnotify'
WARNING: after you have run `configure' to discover the real whereabouts
WARNING: of `sed', `grep' etc. like this:
WARNING:
WARNING:      rm -f $auxdir/mailnotify; make -f Makefile.maint commit
EOF

exit 0