autoconf/autoconf.in

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