mirror of
git://git.sv.gnu.org/autoconf
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134 lines
3.9 KiB
Bash
134 lines
3.9 KiB
Bash
#!/bin/sh
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# autoconf -- create `configure' using m4 macros
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# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# If given no args, create `configure' from template file `configure.in'.
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# With one arg, create a configure script on standard output from
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# the given template file.
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usage="\
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Usage: autoconf [-hv] [--help] [-m dir] [--macrodir=dir]
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[--version] [template-file]"
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# NLS nuisances.
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# Only set `LANG' and `LC_ALL' to "C" if already set.
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# These must not be set unconditionally because not all systems understand
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# e.g. LANG=C (notably SCO).
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if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
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if test "${LANG+set}" = set; then LANG=C; export LANG; fi
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test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@
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test -z "${M4}" && M4=@M4@
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case "${M4}" in
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/*) # Handle the case that m4 has moved since we were configured.
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# It may have been found originally in a build directory.
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test -f "${M4}" || M4=m4 ;;
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esac
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tmpout=/tmp/acout.$$
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show_version=no
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while test $# -gt 0 ; do
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case "${1}" in
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-h | --help | --h* )
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echo "${usage}" 1>&2; exit 0 ;;
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--macrodir=* | --m*=* )
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AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
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shift ;;
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-m | --macrodir | --m* )
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shift
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test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
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AC_MACRODIR="${1}"
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shift ;;
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-v | --version | --v* )
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show_version=yes; shift ;;
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-- ) # Stop option processing
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shift; break ;;
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- ) # Use stdin as input.
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break ;;
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-* )
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echo "${usage}" 1>&2; exit 1 ;;
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* )
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break ;;
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esac
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done
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if test $show_version = yes; then
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version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
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$AC_MACRODIR/acgeneral.m4`
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echo "Autoconf version $version"
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exit 0
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fi
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case $# in
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0) infile=configure.in ;;
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1) infile="$1" ;;
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*) echo "$usage" >&2; exit 1 ;;
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esac
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trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15
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if test z$infile = z-; then
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tmpin=/tmp/acin.$$
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infile=$tmpin
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cat > $infile
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elif test ! -r "${infile}"; then
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echo "autoconf: ${infile}: No such file or directory" >&2
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exit 1
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fi
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# Use the frozen version of Autoconf if available.
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r= f=
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# Some non-GNU m4's don't reject the --help option, so give them /dev/null.
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case `$M4 --help < /dev/null 2>&1` in
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*reload-state*) test -r $AC_MACRODIR/autoconf.m4f && { r=--reload f=f; } ;;
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*traditional*) ;;
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*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;;
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esac
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$M4 -I$AC_MACRODIR $r autoconf.m4$f $infile > $tmpout || { rm -f $tmpin $tmpout; exit 2; }
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# You could add your own prefixes to pattern if you wanted to check for
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# them too, e.g. pattern="AC_\|ILT_", except that UNIX sed doesn't do
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# alternation.
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pattern="AC_"
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status=0
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if grep "${pattern}" $tmpout > /dev/null 2>&1; then
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echo "autoconf: Undefined macros:" >&2
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grep "${pattern}" $tmpout | sed "s/.*\(${pattern}[_A-Z0-9]*\).*/\1/" |
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while read name; do
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grep -n $name $infile /dev/null
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done | sort -u >&2
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status=1
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fi
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if test $# -eq 0; then
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exec > configure; chmod +x configure
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fi
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# Put the real line numbers into configure to make config.log more helpful.
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awk '
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/__oline__/ { printf "%d:", NR + 1 }
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{ print }
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' $tmpout | sed '
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/__oline__/s/^\([0-9][0-9]*\):\(.*\)__oline__\(.*\)$/\2\1\3/
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'
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rm -f $tmpout
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exit $status
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