mirror of
git://git.sv.gnu.org/autoconf
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c33696519a
* acgeneral.m4: 's/@BKL@/@<:@/g', 's/@BKR@/@:>@/g', 's/@DLR@/@S|@/g', 's/@PND@/@%:@/g'. * acspecific.m4: Likewise. * autoconf.sh: Likewise.
371 lines
11 KiB
Plaintext
371 lines
11 KiB
Plaintext
#! @SHELL@
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# autoconf -- create `configure' using m4 macros
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# Copyright (C) 1992, 1993, 1994, 1996, 1999 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., 59 Temple Place - Suite 330, Boston, MA
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# 02111-1307, 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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me=`echo "$0" | sed -e 's,.*/,,'`
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usage="\
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Usage: autoconf [OPTION] ... [TEMPLATE-FILE]
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Generate a configuration script from a TEMPLATE-FILE if given, or
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\`configure.in' by default. Output is sent to the standard output if
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TEMPLATE-FILE is given, else into \`configure'.
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If the option \`--trace' is used, no configuration script is created.
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-h, --help print this help, then exit
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-V, --version print version number, then exit
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-m, --macrodir=DIR directory storing Autoconf's macro files
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-l, --localdir=DIR directory storing the \`aclocal.m4' file
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-t, --trace=MACRO report the list of calls to MACRO
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-o, --output=FILE save output in FILE (stdout is the default)
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Report bugs to <bug-autoconf@gnu.org>."
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version="\
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autoconf (GNU @PACKAGE@) @VERSION@
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Written by David J. MacKenzie.
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Copyright (C) 1992, 1993, 1994, 1996, 1999 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
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help="\
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Try \`$me --help' for more information."
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# NLS nuisances.
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# Only set these to C if already set. These must not be set unconditionally
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# because not all systems understand e.g. LANG=C (notably SCO).
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# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
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# Non-C LC_CTYPE values break the ctype check.
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if test "${LANG+set}" = set; then LANG=C; export LANG; fi
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if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
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if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
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if test "${LC_CTYPE+set}" = set; then LC_CTYPE=C; export LC_CTYPE; fi
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# ac_LF_and_DOT
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# We use echo to avoid assuming a particular line-breaking character.
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# The extra dot is to prevent the shell from consuming trailing
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# line-breaks from the sub-command output. A line-break within
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# single-quotes doesn't work because, if this script is created in a
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# platform that uses two characters for line-breaks (e.g., DOS), tr
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# would break.
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ac_LF_and_DOT=`echo; echo .`
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# Find GNU m4.
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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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: ${M4=@M4@}
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case "$M4" in
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/*) test -f "$M4" || M4=m4 ;;
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esac
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# Some non-GNU m4's don't reject the --help option, so give them /dev/null.
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case `$M4 --help < /dev/null 2>&1` in
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*reload-state*);;
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*) echo "$me: Autoconf requires GNU m4 1.4 or later" >&2; exit 1 ;;
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esac
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# Variables.
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: ${AC_MACRODIR=@datadir@}
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: ${AC_ACLOCALDIR=`(aclocal --print-ac-dir) 2>/dev/null`}
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: ${AWK=@AWK@}
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localdir=
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outfile=
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# Tasks:
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# - trace
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# Trace the first arguments of some macros
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# - script
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# Produce the configure script (default)
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task=script
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: ${TMPDIR=/tmp}
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tmpin=$TMPDIR/acin.$$
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tmpout=$TMPDIR/acout.$$
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verbose=:
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# Parse command line
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while test $# -gt 0 ; do
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case "$1" in
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--version | --vers* | -V )
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echo "$version" ; exit 0 ;;
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--help | --h* | -h )
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echo "$usage"; exit 0 ;;
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--localdir=* | --l*=* )
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localdir=`echo "$1" | sed -e 's/^[^=]*=//'`
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shift ;;
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--localdir | --l* | -l )
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shift
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test $# -eq 0 && { echo "$help" >&2; exit 1; }
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localdir="$1"
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shift ;;
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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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--macrodir | --m* | -m )
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shift
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test $# -eq 0 && { echo "$help" >&2; exit 1; }
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AC_MACRODIR="$1"
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shift ;;
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--install )
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task=install
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shift;;
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--verbose | --verb* )
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verbose=echo
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shift;;
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--trace | -t )
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task=trace
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shift
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traces="$traces -t $1"
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shift ;;
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--trace=* )
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task=trace
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traces="$traces -t `echo \"$1\" | sed -e 's/^[^=]*=//'`"
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shift ;;
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--output | -o )
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shift
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outfile="$1"
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shift ;;
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--output=* )
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outfile=`echo "$1" | sed -e 's/^[^=]*=//'`
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shift ;;
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-- ) # Stop option processing
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shift; break ;;
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- ) # Use stdin as input.
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break ;;
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-* )
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exec >&2
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echo "$me: invalid option $1"
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echo "$help"
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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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# Running m4.
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if test -n "$localdir"; then
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use_localdir="-I$localdir -DAC_LOCALDIR=$localdir"
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fi
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run_m4="$M4 --reload $AC_MACRODIR/autoconf.m4f $use_localdir"
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case $# in
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0) infile=configure.in
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test $task = script && test "x$outfile" = x && outfile=configure;;
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1) infile="$1" ;;
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*) exec >&2
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echo "$me: invalid number of arguments."
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echo "$help"
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exit 1 ;;
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esac
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trap 'rm -f $tmpin $tmpout' 0 1 2 15
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if test z$infile = z-; then
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infile=$tmpin
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cat >$infile
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elif test ! -r "$infile"; then
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echo "$me: $infile: No such file or directory" >&2
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exit 1
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fi
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# Output is produced into FD 4. Prepare it.
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case "x$outfile" in
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x- | x ) # Output to stdout
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exec 4>&1 ;;
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* )
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exec 4>$outfile;;
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esac
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# Initializations are performed. Proceed to the main task.
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case $task in
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## --------------------- ##
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## Generate the script. ##
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## --------------------- ##
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script)
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$run_m4 $infile > $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="A[CHM]_"
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status=0
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if grep "^[^#]*$pattern" $tmpout > /dev/null 2>&1; then
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echo "autoconf: Undefined macros:" >&2
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sed -n "s/^[^#]*\\($pattern[_A-Za-z0-9]*\\).*/\\1/p" $tmpout |
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while read macro; do
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grep -n "^[^#]*$macro" $infile /dev/null
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test $? -eq 1 && echo "***BUG in Autoconf--please report*** $macro"
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done | sort -u >&2
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status=1
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fi
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if test -n "$outfile"; then
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chmod +x $outfile
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fi
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# Put the real line numbers into configure to make config.log more helpful.
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# Because quoting can sometimes get really painful in m4, there are special
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# @tokens@ to substitute.
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sed -e 's/[ ]*$//' <$tmpout |
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sed -e '/^$/N;/\n$/D' |
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$AWK '
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/__oline__/ { printf "%d:", NR + 1 }
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{ print }' |
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sed '
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/__oline__/s/^\([0-9][0-9]*\):\(.*\)__oline__/\2\1/
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s/@<:@/[/g
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s/@:>@/]/g
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s/@S|@/$/g
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s/@%:@/#/g
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' >&4
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;; # End of the task script.
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## -------------- ##
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## Trace macros. ##
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## -------------- ##
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trace)
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$run_m4 $traces -dafl $infile -o $tmpout>/dev/null || exit 2
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# The output looks like this:
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# | m4trace:configure.in:2: -1- AC_CHECK_FUNCS(foo bar
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# | baz, fubar)
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# and should be like this:
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# configure.in:2:AC_CHECK_FUNCS:foo bar baz, fubar
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cat $tmpout |
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# No need to be too verbose
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uniq |
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sed -e 's/m4trace:/@&/' |
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# Join arguments spread on several lines
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tr "$ac_LF_and_DOT" ' .' |
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tr @. "$ac_LF_and_DOT" |
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# Remove m4trace and -1-
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sed -n -e 's/^[^:]*:\([^:]*:[^:]*:\)[^a-zA-Z_]*\([a-zA-Z_]*.*\) $/\1\2/p' |
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# Replace the first `(' by a colon, remove the last `)'.
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sed -e 's/(/:/; s/)$//' >&4
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# The last eof was eaten.
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echo >&4
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;;
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## -------------------------------------------------------- ##
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## Task --install. Install links to the library m4 files. ##
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## -------------------------------------------------------- ##
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install)
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# An m4 program that reports what macros are requested, and where
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# they were defined.
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cat >$tmpin <<\EOF
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dnl Keep the definition of the old AC_DEFUN
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define([AC_DEFUN_OLD], defn([AC_DEFUN]))
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dnl Define the macro so that the first time it is expanded, it reports
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dnl on stderr its name, and where it was defined.
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define([AC_DEFUN],
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[AC_DEFUN_OLD([$1],
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[ifdef([AC_DECLARED{$1}],,
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[define([AC_DECLARED{$1}])errprint(]]__file__:__line__:[[ [$1]
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)])dnl
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][$2])])
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dnl All the includes must be disabled. If they are not, since people don't
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dnl protect the first argument of AC_DEFUN, then, if read a second time
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dnl this argument will be expanded, and we'll get pure junk out of m4.
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define([AC_INCLUDE])
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EOF
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# Run m4 with all the library files, save its report on strderr.
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$verbose Running $run_m4 -dipa -t m4_include -t m4_sinclude $tmpin $localdir/*.m4 $AC_ACLOCALDIR/*.m4 $infile
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$run_m4 -dipa -t m4_include -t m4_sinclude $tmpin $localdir/*.m4 $AC_ACLOCALDIR/*.m4 $infile >the-script 2>$tmpout
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# Keep only the good lines, there may be other outputs
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grep '^[^: ]*:[0-9][0-9]*:[^:]*$' $tmpout >$tmpin
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# Extract the files that are not in the local dir, and install the links.
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# Save in $tmpout the list of installed links.
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>$tmpout
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$verbose "Required macros:"
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$verbose "`sed -e 's/^/| /' $tmpin`"
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cat $tmpin |
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while read line
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do
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file=`echo "$line" | sed -e 's/:.*//'`
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filename=`echo "$file" | sed -e 's,.*/,,'`
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macro=`echo "$line" | sed -e 's/.*:[ ]*//'`
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if test -f "$file" && test "x$file" != "x$infile"; then
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if test -f $localdir/$filename; then
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$verbose "$filename already installed"
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else
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$verbose "installing $file which provides $macro"
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ln -s "$file" "$localdir/$filename" ||
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cp "$file" "$localdir/$filename" ||
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{
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echo "$me: cannot link from $file to $localdir/$filename" >&2
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exit 1
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}
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fi
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echo "$localdir/$filename" >>$tmpout
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fi
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done
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# Now that we have installed the links, and that we know that the
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# user needs the FILES, check that there is an exact correspondence.
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# Use yourself to get the list of the included files.
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export AC_ACLOCALDIR
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export AC_MACRODIR
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# Not m4_s?include, because it would catch acsite and aclocal, which
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# we don't care of.
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$0 -l "$localdir" -t AC_INCLUDE $inline |
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sed -e 's/^[^:]*:[^:]*:[^:]*://g' |
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sort |
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uniq >$tmpin
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# All the included files are needed.
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for file in `cat $tmpin`;
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do
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if fgrep "$file" $tmpout >/dev/null 2>&1; then :; else
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echo "\`$file' is uselessly included" >&2
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fi
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done
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# All the needed files are included.
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for file in `sort $tmpout | uniq`;
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do
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if fgrep "$file" $tmpin >/dev/null 2>&1; then :; else
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echo "\`$file' is not included" >&2
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fi
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done
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;;
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## ------------ ##
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## Unknown task ##
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## ------------ ##
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*)echo "$me: internal error: unknown task: $task" >&2
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exit 1
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esac
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exit $status
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