path: root/autoconf.in

#! @SHELL@
# -*- shell-script -*-
# autoconf -- create `configure' using m4 macros
# Copyright 1992, 1993, 1994, 1996, 1999, 2000, 2001
# 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, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

me=`echo "$0" | sed -e 's,.*[\\/],,'`

usage="\
Usage: $0 [OPTION] ... [TEMPLATE-FILE]

Generate a configuration script from a TEMPLATE-FILE if given, or
\`configure.ac' if present, or else \`configure.in'.  Output is sent
to the standard output if TEMPLATE-FILE is given, else into
\`configure'.

Operation modes:
  -h, --help               print this help, then exit
  -V, --version            print version number, then exit
  -v, --verbose            verbosely report processing
  -d, --debug              don't remove temporary files
  -o, --output=FILE        save output in FILE (stdout is the default)
  -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [syntax]

Warning categories include:
  \`cross'         cross compilation issues
  \`obsolete'      obsolete constructs
  \`syntax'        dubious syntactic constructs
  \`all'           all the warnings
  \`no-CATEGORY'   turn off the warnings on CATEGORY
  \`none'          turn off all the warnings
  \`error'         warnings are error

The environment variable \`WARNINGS' is honored.

Library directories:
  -A, --autoconf-dir=ACDIR  Autoconf's macro files location (rarely needed)
  -l, --localdir=DIR        location of the \`aclocal.m4' file

Tracing:
  -t, --trace=MACRO     report the list of calls to MACRO
  -i, --initialization  also trace Autoconf's initialization process

In tracing mode, no configuration script is created.

Report bugs to <bug-autoconf@gnu.org>."

version="\
autoconf (@PACKAGE_NAME@) @VERSION@
Written by David J. MacKenzie.

Copyright 1992, 1993, 1994, 1996, 1999, 2000, 2001
Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."

help="\
Try \`$me --help' for more information."

exit_missing_arg="\
echo \"$me: option \\\`\$1' requires an argument\" >&2
echo \"\$help\" >&2
exit 1"

# NLS nuisances.
if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi

# Variables.
: ${autoconf_dir=${AC_MACRODIR=@datadir@}}
debug=false
dir=`echo "$0" | sed -e 's,[^\\/]*$,,'`
# Trace Autoconf's initialization?
initialization=false
localdir=.
outfile=
# Exit status.
status=0
verbose=:

# Find GNU m4.
# Handle the case that m4 has moved since we were configured.
# It may have been found originally in a build directory.
: ${M4=@M4@}
case "$M4" in
  [\\/]* | ?:[\\/]*) test -f "$M4" || M4=m4 ;;
esac
# Some non-GNU m4's don't reject the --help option, so give them /dev/null.
case `$M4 --help </dev/null 2>&1` in
*reload-state*);;
*) echo "$me: Autoconf requires GNU m4 1.4 or later" >&2; exit 1 ;;
esac

# Set some high recursion limit as the default limit, 250, has already
# been hit with AC_OUTPUT.
case " $M4 " in
  *" --nesting-limit"* | *" -L"* )
  # Don't override the user's choice
  ;;
  *) M4="$M4 --nesting-limit=1024"
  ;;
esac


# We test "$dir/autom4te" in case we are in the build tree, in which case
# the names are not transformed yet.
for autom4te in "$AUTOM4TE" \
                "$dir/@autom4te-name@" \
                "$dir/autom4te" \
                "@bindir@/@autom4te-name@"; do
  test -f "$autom4te" && break
done


# Parse command line.
while test $# -gt 0 ; do
  optarg=`expr "x$1" : 'x--[^=]*=\(.*\)' \| \
               "x$1" : 'x-.\(.*\)'`
  case $1 in
    --version | -V )
       echo "$version" ; exit 0 ;;
    --help | -h )
       echo "$usage"; exit 0 ;;

    --debug | -d )
       debug=:; shift ;;
    --verbose | -v )
       verbose=echo
       shift;;

    --localdir=* | -l?* )
       localdir=$optarg
       shift ;;
    --localdir | -l )
       test $# = 1 && eval "$exit_missing_arg"
       shift
       localdir=$1
       shift ;;

    --autoconf-dir=* | -A?* )
      autoconf_dir=$optarg
       shift ;;
    --autoconf-dir | -A )
       test $# = 1 && eval "$exit_missing_arg"
       shift
       autoconf_dir=$1
       shift ;;
    --macrodir=* | -m?* )
       echo "$me: warning: --macrodir is obsolete, use --autoconf-dir" >&2
       autoconf_dir=$optarg
       shift ;;
    --macrodir | -m )
       echo "$me: warning: --macrodir is obsolete, use --autoconf-dir" >&2
       test $# = 1 && eval "$exit_missing_arg"
       shift
       autoconf_dir=$1
       shift ;;

    --trace=* | -t?* )
       traces="$traces --trace='"`echo "$optarg" | sed "s/'/'\\\\\\\\''/g"`"'"
       shift ;;
    --trace | -t )
       test $# = 1 && eval "$exit_missing_arg"
       shift
       traces="$traces --trace='"`echo "$1" | sed "s/'/'\\\\\\\\''/g"`"'"
       shift ;;
    --initialization | -i )
       initialization=:
       shift;;

    --output=* | -o?* )
       outfile=$optarg
       shift ;;
    --output | -o )
       test $# = 1 && eval "$exit_missing_arg"
       shift
       outfile=$1
       shift ;;

    --warnings=* | -W?* )
       warnings=$warnings,$optarg
       shift ;;
    --warnings | -W )
       test $# = 1 && eval "$exit_missing_arg"
       shift
       warnings=$warnings,$1
       shift ;;

    -- )     # Stop option processing
       shift; break ;;
    - )	# Use stdin as input.
       break ;;
    -* )
       exec >&2
       echo "$me: invalid option $1"
       echo "$help"
       exit 1 ;;
    * )
       break ;;
  esac
done

# Find the input file.
case $# in
  0)
    case `ls configure.ac configure.in 2>/dev/null` in
      *ac*in )
        echo "$me: warning: both \`configure.ac' and \`configure.in' are present." >&2
        echo "$me: warning: proceeding with \`configure.ac'." >&2
        infile=configure.ac;;
      *ac ) infile=configure.ac;;
      *in ) infile=configure.in;;
      * )
        echo "$me: no input file" >&2
        exit 1;;
    esac
    test -z "$traces" && test -z "$outfile" && outfile=configure;;
  1) # autom4te doesn't like `-'.
     test "x$1" != "x-" && infile=$1 ;;
  *) exec >&2
     echo "$me: invalid number of arguments."
     echo "$help"
     (exit 1); exit 1 ;;
esac

# Unless specified, the output is stdout.
test -z "$outfile" && outfile=-

# Running autom4te.
run_autom4te="$autom4te "\
`$verbose "--verbose "`\
`$debug && echo "--debug "`\
"--include $autoconf_dir --include $localdir "\
"--warning syntax,$warnings "\
"autoconf/autoconf.m4"`$initialization || echo f`" "\
`test -f "$autoconf_dir/acsite.m4" && echo "$autoconf_dir/acsite.m4"`" "\
`test -f "$localdir/aclocal.m4" && echo "$localdir/aclocal.m4"`

# Autom4te expansion.
eval set dummy "$traces"
shift
$verbose "$me: running $run_autom4te ""$@"" $infile --output $outfile" >&2
$run_autom4te "$@" $infile --output $outfile ||
  { (exit 1); exit 1; }

if test -z "$traces" && test "x$outfile" != x-; then
  chmod +x $outfile
fi

(exit $status); exit $status