#! /bin/sh
# $OpenLDAP$
# This file is distributed with OpenLDAP Software but is an an 
# independently licensed program.

# Common stub for a few missing GNU programs while installing.
# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
# Franc,ois Pinard <pinard@iro.umontreal.ca>, 1996.

# 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.

if test $# -eq 0; then
  echo 1>&2 "Try \`$0 --help' for more information"
  exit 1
fi

case "$1" in

  -h|--h|--he|--hel|--help)
    echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...

Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
error status if there is no known handling for PROGRAM.

Options:
  -h, --help      display this help and exit
  -v, --version   output version information and exit

Supported PROGRAM values:
  aclocal      touch file \`aclocal.m4'
  autoconf     touch file \`configure'
  autoheader   touch file \`config.h.in'
  automake     touch all \`Makefile.in' files
  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
  flex         create \`lex.yy.c', if possible, from existing .c
  lex          create \`lex.yy.c', if possible, from existing .c
  makeinfo     touch the output file
  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
    ;;

  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
    echo "missing - GNU libit 0.0"
    ;;

  -*)
    echo 1>&2 "$0: Unknown \`$1' option"
    echo 1>&2 "Try \`$0 --help' for more information"
    exit 1
    ;;

  aclocal)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`acinclude.m4' or \`configure.in'.  You might want
         to install the \`Automake' and \`Perl' packages. See build/README."
    touch aclocal.m4
    ;;

  autoconf)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`configure.in'.  You might want to install the
         \`Autoconf' and \`GNU m4' packages.  See build/README."
    touch configure
    ;;

  autoheader)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`acconfig.h' or \`configure.in'.  You might want
         to install the \`Autoconf' and \`GNU m4' packages.  See
         build/README."
    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' configure.in`
    test -z "$files" && files="config.h"
    touch_files=
    for f in $files; do
      case "$f" in
      *:*) touch_files="$touch_files "`echo "$f" |
				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
      *) touch_files="$touch_files $f.in";;
      esac
    done
    touch $touch_files
    ;;

  automake)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified \`Makefile.am', \`acinclude.m4' or \`configure.in'.
         You might want to install the \`Automake' and \`Perl' packages.
         Grab them from any GNU archive site."
    find . -type f -name Makefile.am -print |
	   sed 's/\.am$/.in/' |
	   while read f; do touch "$f"; done
    ;;

  bison|yacc)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.y' file.  You may need the \`Bison' package
         in order for those modifications to take effect.  You can get
         \`Bison' from any GNU archive site."
    rm -f y.tab.c y.tab.h
    if [ $# -ne 1 ]; then
        eval LASTARG="\${$#}"
	case "$LASTARG" in
	*.y)
	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
	    if [ -f "$SRCFILE" ]; then
	         cp "$SRCFILE" y.tab.c
	    fi
	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
	    if [ -f "$SRCFILE" ]; then
	         cp "$SRCFILE" y.tab.h
	    fi
	  ;;
	esac
    fi
    if [ ! -f y.tab.h ]; then
	echo >y.tab.h
    fi
    if [ ! -f y.tab.c ]; then
	echo 'main() { return 0; }' >y.tab.c
    fi
    ;;

  lex|flex)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.l' file.  You may need the \`Flex' package
         in order for those modifications to take effect.  You can get
         \`Flex' from any GNU archive site."
    rm -f lex.yy.c
    if [ $# -ne 1 ]; then
        eval LASTARG="\${$#}"
	case "$LASTARG" in
	*.l)
	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
	    if [ -f "$SRCFILE" ]; then
	         cp "$SRCFILE" lex.yy.c
	    fi
	  ;;
	esac
    fi
    if [ ! -f lex.yy.c ]; then
	echo 'main() { return 0; }' >lex.yy.c
    fi
    ;;

  makeinfo)
    echo 1>&2 "\
WARNING: \`$1' is missing on your system.  You should only need it if
         you modified a \`.texi' or \`.texinfo' file, or any other file
         indirectly affecting the aspect of the manual.  The spurious
         call might also be the consequence of using a buggy \`make' (AIX,
         DU, IRIX).  You might want to install the \`Texinfo' package or
         the \`GNU make' package.  Grab either from any GNU archive site."
    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
    if test -z "$file"; then
      file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
    fi
    touch $file
    ;;

  *)
    echo 1>&2 "\
WARNING: \`$1' is needed, and you do not seem to have it handy on your
         system.  You might have modified some files without having the
         proper tools for further handling them.  Check the \`README' file
         or build/README file, they often tells you about the needed
         prerequirements for installing this package.  You may also peek
         at any GNU archive site, in case some other package would contain
         this missing \`$1' program."
    exit 1
    ;;
esac

exit 0
