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- #! /bin/sh
- # autoheader -- create `config.h.in' from `configure.in'
- # Copyright (C) 1992, 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- # Written by Roland McGrath.
-
- # If given no args, create `config.h.in' from template file `configure.in'.
- # With one arg, create a header file on standard output from
- # the given template file.
-
- usage="\
- Usage: autoheader [-h] [--help] [-m dir] [--macrodir=dir]
- [-l dir] [--localdir=dir] [--version] [template-file]"
-
- # NLS nuisances.
- # Only set `LANG' and `LC_ALL' to "C" if already set.
- # These must not be set unconditionally because not all systems understand
- # e.g. LANG=C (notably SCO).
- if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
- if test "${LANG+set}" = set; then LANG=C; export LANG; fi
-
- test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@
- test -z "${M4}" && M4=@M4@
- 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
-
- localdir=.
- show_version=no
-
- while test $# -gt 0 ; do
- case "${1}" in
- -h | --help | --h* )
- echo "${usage}"; exit 0 ;;
- --localdir=* | --l*=* )
- localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
- shift ;;
- -l | --localdir | --l*)
- shift
- test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
- localdir="${1}"
- shift ;;
- --macrodir=* | --m*=* )
- AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
- shift ;;
- -m | --macrodir | --m* )
- shift
- test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
- AC_MACRODIR="${1}"
- shift ;;
- --version | --v* )
- show_version=yes; shift ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "${usage}" 1>&2; exit 1 ;;
- * )
- break ;;
- esac
- done
-
- if test $show_version = yes; then
- version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \
- $AC_MACRODIR/acgeneral.m4`
- echo "Autoconf version $version"
- exit 0
- fi
-
- TEMPLATES="${AC_MACRODIR}/acconfig.h"
- test -r $localdir/acconfig.h && TEMPLATES="${TEMPLATES} $localdir/acconfig.h"
-
- case $# in
- 0) infile=configure.in ;;
- 1) infile=$1 ;;
- *) echo "$usage" >&2; exit 1 ;;
- esac
-
- config_h=config.h
- syms=
- types=
- funcs=
- headers=
- libs=
-
- if test "$localdir" != .; then
- use_localdir="-I$localdir -DAC_LOCALDIR=$localdir"
- else
- use_localdir=
- fi
-
- # Use the frozen version of Autoconf if available.
- r= f=
- # Some non-GNU m4's don't reject the --help option, so give them /dev/null.
- case `$M4 --help < /dev/null 2>&1` in
- *reload-state*) test -r $AC_MACRODIR/autoheader.m4f && { r=--reload f=f; } ;;
- *traditional*) ;;
- *) echo Autoconf requires GNU m4 1.1 or later >&2; exit 1 ;;
- esac
-
- # Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the
- # modified autoconf processing of the input file. The sed hair is
- # necessary to win for multi-line macro invocations.
- eval "`$M4 -I$AC_MACRODIR $use_localdir $r autoheader.m4$f $infile |
- sed -n -e '
- : again
- /^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p
- /^@@@/{
- s/^@@@//p
- n
- s/^/@@@/
- b again
- }'`"
-
- # Make SYMS newline-separated rather than blank-separated, and remove dups.
- # Start each symbol with a blank (to match the blank after "#undef")
- # to reduce the possibility of mistakenly matching another symbol that
- # is a substring of it.
- syms="`for sym in $syms; do echo $sym; done | sort | uniq | sed 's@^@ @'`"
-
- if test $# -eq 0; then
- tmpout=autoh$$
- trap "rm -f $tmpout; exit 1" 1 2 15
- exec > $tmpout
- fi
-
- # Support "outfile[:infile]", defaulting infile="outfile.in".
- case "$config_h" in
- *:*) config_h_in=`echo "$config_h"|sed 's%.*:%%'`
- config_h=`echo "$config_h"|sed 's%:.*%%'` ;;
- *) config_h_in="${config_h}.in" ;;
- esac
-
- # Don't write "do not edit" -- it will get copied into the
- # config.h, which it's ok to edit.
- echo "/* ${config_h_in}. Generated automatically from $infile by autoheader. */"
-
- test -r ${config_h}.top && cat ${config_h}.top
- test -r $localdir/acconfig.h &&
- grep @TOP@ $localdir/acconfig.h >/dev/null &&
- sed '/@TOP@/,$d' $localdir/acconfig.h
-
- # This puts each template paragraph on its own line, separated by @s.
- if test -n "$syms"; then
- # Make sure the boundary of template files is also the boundary
- # of the paragraph. Extra newlines don't hurt since they will
- # be removed.
- for t in $TEMPLATES; do cat $t; echo; echo; done |
- # The sed script is suboptimal because it has to take care of
- # some broken seds (e.g. AIX) that remove '\n' from the
- # pattern/hold space if the line is empty. (junio@twinsun.com).
- sed -n -e '
- /^[ ]*$/{
- x
- s/\n/@/g
- p
- s/.*/@/
- x
- }
- H' | sed -e 's/@@*/@/g' |
- # Select each paragraph that refers to a symbol we picked out above.
- fgrep "$syms" |
- tr @ \\012
- fi
-
- echo "$types" | tr , \\012 | sort | uniq | while read ctype; do
- test -z "$ctype" && continue
- sym="`echo "${ctype}" | tr 'abcdefghijklmnopqrstuvwxyz *' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_P'`"
- echo "
- /* The number of bytes in a ${ctype}. */
- #undef SIZEOF_${sym}"
- done
-
- # /bin/sh on the Alpha gives `for' a random value if $funcs is empty.
- if test -n "$funcs"; then
- for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
- sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`"
- echo "
- /* Define if you have the ${func} function. */
- #undef HAVE_${sym}"
- done
- fi
-
- if test -n "$headers"; then
- for header in `for x in $headers; do echo $x; done | sort | uniq`; do
-
- sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`"
- echo "
- /* Define if you have the <${header}> header file. */
- #undef HAVE_${sym}"
- done
- fi
-
- if test -n "$libs"; then
- for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
- sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`"
- echo "
- /* Define if you have the ${lib} library (-l${lib}). */
- #undef HAVE_LIB${sym}"
- done
- fi
-
- # Handle the case where @BOTTOM@ is the first line of acconfig.h.
- test -r $localdir/acconfig.h &&
- grep @BOTTOM@ $localdir/acconfig.h >/dev/null &&
- sed -n '/@BOTTOM@/,${/@BOTTOM@/!p;}' $localdir/acconfig.h
- test -f ${config_h}.bot && cat ${config_h}.bot
-
- status=0
-
- if test -n "$syms"; then
- for sym in $syms; do
- if fgrep $sym $TEMPLATES >/dev/null; then
- : # All is well.
- else
- echo "$0: Symbol \`${sym}' is not covered by $TEMPLATES" >&2
- status=1
- fi
- done
- fi
-
- if test $# -eq 0; then
- if test $status -eq 0; then
- if cmp -s $tmpout ${config_h_in}; then
- rm -f $tmpout
- else
- mv -f $tmpout ${config_h_in}
- fi
- else
- rm -f $tmpout
- fi
- fi
-
- exit $status
-