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#! /bin/sh
# $Id$
# This "reautoconf" script at the root of the TeX Live source tree 
# runs autoreconf (from PATH) in all relevant TL directories.
#
# Copyright 2008-2021 Karl Berry.
# Copyright 2004-2009 Peter Breitenlohner.
# Copyright 2005 Olaf Weber.
#
# 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 3 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.  If not, see <http://www.gnu.org/licenses/>.

unset CDPATH

usage="Usage: $0 [OPTION]... [DIR]...
  Run \`autoreconf --no-recursive' in the directories DIR...
  (default all) of the TeX Live source tree.
  
  By default, also pass -Wno-obsolete, because Autoconf 2.70
  and later deprecated many widely used macros. See Build/m4/README for
  a lengthy discussion of this. To see the obsolete warnings (perhaps
  because you want to spend time fixing them), use --warn-obsolete here.

Options:
  -h, --help      display this help and exit successfully
  -n, --dry-run   don't run any commands; just print them
  -q, --quiet     don't echo commands
  -v, --verbose   verbosely report processing (default)
      --warn-obsolete  do not pass -Wno-obsolete

Environment variables:
  TL_AUTOCONF:   program to use instead of autoconf from PATH
  TL_AUTOHEADER: program to use instead of autoheader from PATH
  TL_AUTOMAKE:   program to use instead of automake from PATH
  TL_ACLOCAL:    program to use instead of aclocal from PATH

This script should be invoked only from the top level of the TeX Live
source tree.

Report bugs (and any other discussion) to:
  tlbuild@tug.org (https://lists.tug.org/tlbuild)

Version: $Id$
"

do_cmd=eval
do_say=echo
verbose=-v
warn_obsolete=-Wno-obsolete

list=

for option
do
  case $option in
    -h | --help | --version) echo "$usage"; exit 0 ;;
    -n | --dry-run)  do_cmd=:                ;;
    -q | --quiet)    do_say=:;    verbose=   ;;
    -v | --verbose)  do_say=echo; verbose=-v ;;
    --warn-obsolete) warn_obsolete=          ;;
    -*) echo "$0: *** unrecognized option \`$option'" >&2
        echo "Try --help if you need it." >&2; exit 1 ;;
     *) list="$list $option" ;;
  esac
done

test x"$do_cmd" = x: && do_say=echo	# -n implies -v

if test ! -f ./m4/kpse-setup.m4; then
  echo "$0: *** can't find ./m4/kpse-setup.m4 (from `pwd`)" >&2
  exit 1
fi

: ${TL_AUTOCONF=autoconf}
echo "$0: using \"$TL_AUTOCONF\" = `$TL_AUTOCONF --version | sed 1q`"
: ${TL_AUTOHEADER=autoheader}
echo "$0: using \"$TL_AUTOHEADER\" = `$TL_AUTOHEADER --version | sed 1q`"
: ${TL_AUTOMAKE=automake}
echo "$0: using \"$TL_AUTOMAKE\" = `$TL_AUTOMAKE --version | sed 1q`"
: ${TL_ACLOCAL=aclocal}
echo "$0: using \"$TL_ACLOCAL\" = `$TL_ACLOCAL --version | sed 1q`"
echo "$0:       if you want to use different versions, set TL_AUTOCONF,"
echo "$0:               TL_AUTOHEADER, TL_AUTOMAKE, and/or TL_ACLOCAL."

# Give users a chance to quit here
# and set TL_AUTOCONF, TL_AUTOHEADER, TL_AUTOMAKE, and/or TL_ACLOCAL
$do_cmd sleep 4
$do_say "$0: starting at `date`."

AUTOCONF=$TL_AUTOCONF
AUTOHEADER=$TL_AUTOHEADER
AUTOMAKE=$TL_AUTOMAKE
ACLOCAL=$TL_ACLOCAL
export AUTOCONF AUTOHEADER AUTOMAKE ACLOCAL

do_it () {
  $do_say "$0: running \"$@\""
  $do_cmd "$@"
  if test $? -ne 0; then
    echo "exit status of $*: $?" >&2
  fi
}

if test "x$list" = x; then
  list=". auxdir/auxsub libs utils texk \
        `find libs utils texk -type d -name ac | sed 's,/ac\$,,'`"
fi

# Autoreconf in all directories
for dir in $list; do

  if test ! -d "$dir"; then
    echo "$0: $dir not a directory, skipping." >&2
    continue
  fi
  if test ! -f "$dir/configure.ac"; then
    echo "$0: $dir/configure.ac: no such file, skipping." >&2
    continue
  fi
  if test -f "$dir/ac/withenable.ac"; then
    extra_dirs=`grep 'dnl extra_dirs = ' $dir/ac/withenable.ac |
      sed 's,^.*= ,,'`
  else
    extra_dirs=
  fi
  do_it autoreconf $verbose --no-recursive $warn_obsolete $dir $extra_dirs
done

echo "$0: done at `date`."