#!/bin/sh
##
##  GNU shtool -- The GNU Portable Shell Tool
##  Copyright (c) 1994-2002 Ralf S. Engelschall <rse@engelschall.com>
##
##  See http://www.gnu.org/software/shtool/ for more information.
##  See ftp://ftp.gnu.org/gnu/shtool/ for latest version.
##
##  Version:  1.6.0 (01-Feb-2002)
##  Contents: all available modules
##

##
##  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 of the License, 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, or contact Ralf S. Engelschall <rse@engelschall.com>.
##
##  NOTICE: Given that you include this file verbatim into your own
##  source tree, you are justified in saying that it remains separate
##  from your package, and that this way you are simply just using GNU
##  shtool. So, in this situation, there is no requirement that your
##  package itself is licensed under the GNU General Public License in
##  order to take advantage of GNU shtool.
##

##
##  Usage: shtool [<options>] [<cmd-name> [<cmd-options>] [<cmd-args>]]
##
##  Available commands:
##    echo       Print string with optional construct expansion
##    mdate      Pretty-print modification time of a file or dir
##    table      Pretty-print a field-separated list as a table
##    prop       Display progress with a running propeller
##    move       Move files with simultaneous substitution
##    install    Install a program, script or datafile
##    mkdir      Make one or more directories
##    mkln       Make link with calculation of relative paths
##    mkshadow   Make a shadow tree through symbolic links
##    fixperm    Fix file permissions inside a source tree
##    rotate     Logfile rotation
##    tarball    Roll distribution tarballs
##    subst      Apply sed(1) substitution operations
##    guessos    Simple operating system guesser
##    arx        Extended archive command
##    slo        Separate linker options by library class
##    scpp       Sharing C Pre-Processor
##    version    Maintain a version information file
##    path       Deal with program paths
##

if [ $# -eq 0 ]; then
    echo "$0:Error: invalid command line" 1>&2
    echo "$0:Hint:  run \`$0 -h' for usage" 1>&2
    exit 1
fi
if [ ".$1" = ".-h" -o ".$1" = ".--help" ]; then
    echo "This is GNU shtool, version 1.6.0 (01-Feb-2002)"
    echo "Copyright (c) 1994-2002 Ralf S. Engelschall <rse@engelschall.com>"
    echo "Report bugs to <bug-shtool@gnu.org>"
    echo ''
    echo "Usage: shtool [<options>] [<cmd-name> [<cmd-options>] [<cmd-args>]]"
    echo ''
    echo 'Available global <options>:'
    echo '  -v, --version   display shtool version information'
    echo '  -h, --help      display shtool usage help page (this one)'
    echo '  -d, --debug     display shell trace information'
    echo '  -r, --recreate  recreate this shtool script via shtoolize'
    echo ''
    echo 'Available <cmd-name> [<cmd-options>] [<cmd-args>]:'
    echo '  echo     [-n|--newline] [-e|--expand] [<str> ...]'
    echo '  mdate    [-n|--newline] [-z|--zero] [-s|--shorten] [-d|--digits]'
    echo '           [-f|--field-sep <str>] [-o|--order <spec>] <path>'
    echo '  table    [-F|--field-sep <sep>] [-w|--width <width>] [-c|--columns'
    echo '           <cols>] [-s|--strip <strip>] <str><sep><str>...'
    echo '  prop     [-p|--prefix <str>]'
    echo '  move     [-v|--verbose] [-t|--trace] [-e|--expand] [-p|--preserve]'
    echo '           <src-file> <dst-file>'
    echo '  install  [-v|--verbose] [-t|--trace] [-c|--copy] [-C|--compare-copy]'
    echo '           [-s|--strip] [-m|--mode <mode>] [-o|--owner <owner>]'
    echo '           [-g|--group <group>] [-e|--exec <sed-cmd>] <file> [<file>'
    echo '           ...] <path>'
    echo '  mkdir    [-t|--trace] [-f|--force] [-p|--parents] [-m|--mode'
    echo '           <mode>] <dir> [<dir> ...]'
    echo '  mkln     [-t|--trace] [-f|--force] [-s|--symbolic] <src-path>'
    echo '           [<src-path> ...] <dst-path>'
    echo '  mkshadow [-v|--verbose] [-t|--trace] [-a|--all] <src-dir> <dst-dir>'
    echo '  fixperm  [-v|--verbose] [-t|--trace] <path> [<path> ...]'
    echo '  rotate   [-v|--verbose] [-t|--trace] [-f|--force] [-n|--num-files'
    echo '           <count>] [-s|--min-size <size>] [-c|--copy] [-r|--remove]'
    echo '           [-a|--archive-dir <dir>] [-z|--compress [<tool>:]<level>]'
    echo '           [-b|--background] [-d|--delay] [-p|--pad <len>] [-o|--owner'
    echo '           <owner>] [-g|--group <group>] [-m|--mode <mode>] [-M|--migrate'
    echo '           <cmd>] [-P|--prolog <cmd>] [-E|--epilog <cmd>] <file> [...]'
    echo '  tarball  [-t|--trace] [-v|--verbose] [-o|--output <tarball>]'
    echo '           [-c|--compress <prog>] [-d|--directory <dir>] [-u|--user'
    echo '           <user>] [-g|--group <group>] [-e|--exclude <pattern>]'
    echo '           <path> [<path> ...]'
    echo '  subst    [-v|--verbose] [-t|--trace] [-n|--nop] [-s|--stealth]'
    echo '           [-i|--interactive] [-b|--backup <ext>] [-e|--exec <cmd>]'
    echo '           [-f|--file <cmd-file>] [<file>] [...]'
    echo '  guessos  '
    echo '  arx      [-t|--trace] [-C|--command <cmd>] <op> <archive> [<file>'
    echo '           ...]'
    echo '  slo      [-p|--prefix <str>] -- -L<dir> -l<lib> [-L<dir> -l<lib>'
    echo '           ...]'
    echo '  scpp     [-v|--verbose] [-p|--preserve] [-f|--filter <filter>]'
    echo '           [-o|--output <ofile>] [-t|--template <tfile>] [-M|--mark'
    echo '           <mark>] [-D|--define <dname>] [-C|--class <cname>]'
    echo '           <file> [<file> ...]'
    echo '  version  [-l|--language <lang>] [-n|--name <name>] [-p|--prefix'
    echo '           <prefix>] [-s|--set <version>] [-e|--edit] [-i|--increase'
    echo '           <knob>] [-d|--display <type>] <file>'
    echo '  path     [-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename]'
    echo '           [-m|--magic] [-p|--path <path>] <str> [<str> ...]'
    echo ''
    exit 0
fi
if [ ".$1" = ".-v" -o ".$1" = ."--version" ]; then
    echo "GNU shtool 1.6.0 (01-Feb-2002)"
    exit 0
fi
if [ ".$1" = ".-r" -o ".$1" = ."--recreate" ]; then
    shtoolize -oshtool all
    exit 0
fi
if [ ".$1" = ".-d" -o ".$1" = ."--debug" ]; then
    shift
    set -x
fi
name=`echo "$0" | sed -e 's;.*/\([^/]*\)$;\1;' -e 's;-sh$;;' -e 's;\.sh$;;'`
case "$name" in
    echo|mdate|table|prop|move|install|mkdir|mkln|mkshadow|fixperm|rotate|tarball|subst|guessos|arx|slo|scpp|version|path )
        #   implicit tool command selection
        tool="$name"
        ;;
    * )
        #   explicit tool command selection
        tool="$1"
        shift
        ;;
esac
arg_spec=""
opt_spec=""
gen_tmpfile=no

##
##  DISPATCH INTO SCRIPT PROLOG
##

case $tool in
    echo )
        str_tool="echo"
        str_usage="[-n|--newline] [-e|--expand] [<str> ...]"
        arg_spec="0+"
        opt_spec="n.e."
        opt_alias="n:newline,e:expand"
        opt_n=no
        opt_e=no
        ;;
    mdate )
        str_tool="mdate"
        str_usage="[-n|--newline] [-z|--zero] [-s|--shorten] [-d|--digits] [-f|--field-sep <str>] [-o|--order <spec>] <path>"
        arg_spec="1="
        opt_spec="n.z.s.d.f:o:"
        opt_alias="n:newline,z:zero,s:shorten,d:digits,f:field-sep,o:order"
        opt_n=no
        opt_z=no
        opt_s=no
        opt_d=no
        opt_f=" "
        opt_o="dmy"
        ;;
    table )
        str_tool="table"
        str_usage="[-F|--field-sep <sep>] [-w|--width <width>] [-c|--columns <cols>] [-s|--strip <strip>] <str><sep><str>..."
        arg_spec="1+"
        opt_spec="F:w:c:s:"
        opt_alias="F:field-sep,w:width,c:columns,s:strip"
        opt_F=":"
        opt_w=15
        opt_c=3
        opt_s=79
        ;;
    prop )
        str_tool="prop"
        str_usage="[-p|--prefix <str>]"
        arg_spec="0="
        opt_spec="p:"
        opt_alias="p:prefix"
        opt_p=""
        ;;
    move )
        str_tool="move"
        str_usage="[-v|--verbose] [-t|--trace] [-e|--expand] [-p|--preserve] <src-file> <dst-file>"
        arg_spec="2="
        opt_spec="v.t.e.p."
        opt_alias="v:verbose,t:trace,e:expand,p:preserve"
        opt_v=no
        opt_t=no
        opt_e=no
        opt_p=no
        ;;
    install )
        str_tool="install"
        str_usage="[-v|--verbose] [-t|--trace] [-c|--copy] [-C|--compare-copy] [-s|--strip] [-m|--mode <mode>] [-o|--owner <owner>] [-g|--group <group>] [-e|--exec <sed-cmd>] <file> [<file> ...] <path>"
        arg_spec="2+"
        opt_spec="v.t.c.C.s.m:o:g:e+"
        opt_alias="v:verbose,t:trace,c:copy,C:compare-copy,s:strip,m:mode,o:owner,g:group,e:exec"
        opt_v=no
        opt_t=no
        opt_c=no
        opt_C=no
        opt_s=no
        opt_m="0755"
        opt_o=""
        opt_g=""
        opt_e=""
        ;;
    mkdir )
        str_tool="mkdir"
        str_usage="[-t|--trace] [-f|--force] [-p|--parents] [-m|--mode <mode>] <dir> [<dir> ...]"
        arg_spec="1+"
        opt_spec="t.f.p.m:"
        opt_alias="t:trace,f:force,p:parents,m:mode"
        opt_t=no
        opt_f=no
        opt_p=no
        opt_m=""
        ;;
    mkln )
        str_tool="mkln"
        str_usage="[-t|--trace] [-f|--force] [-s|--symbolic] <src-path> [<src-path> ...] <dst-path>"
        arg_spec="2+"
        opt_spec="t.f.s."
        opt_alias="t:trace,f:force,s:symbolic"
        opt_t=no
        opt_f=no
        opt_s=no
        ;;
    mkshadow )
        str_tool="mkshadow"
        str_usage="[-v|--verbose] [-t|--trace] [-a|--all] <src-dir> <dst-dir>"
        arg_spec="2="
        opt_spec="v.t.a."
        opt_alias="v:verbose,t:trace,a:all"
        opt_v=no
        opt_t=no
        opt_a=no
        ;;
    fixperm )
        str_tool="fixperm"
        str_usage="[-v|--verbose] [-t|--trace] <path> [<path> ...]"
        arg_spec="1+"
        opt_spec="v.t."
        opt_alias="v:verbose,t:trace"
        opt_v=no
        opt_t=no
        ;;
    rotate )
        str_tool="rotate"
        str_usage="[-v|--verbose] [-t|--trace] [-f|--force] [-n|--num-files <count>] [-s|--min-size <size>] [-c|--copy] [-r|--remove] [-a|--archive-dir <dir>] [-z|--compress [<tool>:]<level>] [-b|--background] [-d|--delay] [-p|--pad <len>] [-o|--owner <owner>] [-g|--group <group>] [-m|--mode <mode>] [-M|--migrate <cmd>] [-P|--prolog <cmd>] [-E|--epilog <cmd>] <file> [...]"
        arg_spec="1+"
        opt_spec="v.t.f.n:s:c.r.a:z:b.d.p:o:g:m:M:P:E:"
        opt_alias="v:verbose,t:trace,f:force,n:num-files,s:size,m:min-size,c:copy,r:remove,a:archive-dir,z:compress,b:background,d:delay,p:pad,o:owner,g:group,m:mode,M:migrate,P:prolog,E:epilog"
        opt_v=no
        opt_t=no
        opt_f=no
        opt_n=10
        opt_s=""
        opt_c=no
        opt_r=no
        opt_a=""
        opt_z=""
        opt_b=no
        opt_d=no
        opt_p=1
        opt_o=""
        opt_g=""
        opt_m=""
        opt_M=""
        opt_P=""
        opt_E=""
        ;;
    tarball )
        str_tool="tarball"
        str_usage="[-t|--trace] [-v|--verbose] [-o|--output <tarball>] [-c|--compress <prog>] [-d|--directory <dir>] [-u|--user <user>] [-g|--group <group>] [-e|--exclude <pattern>] <path> [<path> ...]"
        gen_tmpfile=yes
        arg_spec="1+"
        opt_spec="t.v.o:c:d:u:g:e:"
        opt_alias="t:trace,v:verbose,o:output,c:compress,d:directory,u:user,g:group,e:exclude"
        opt_t=no
        opt_v=no
        opt_o=""
        opt_c=""
        opt_d=""
        opt_u=""
        opt_g=""
        opt_e="CVS,\\.cvsignore,\\.[oa]\$"
        ;;
    subst )
        str_tool="subst"
        str_usage="[-v|--verbose] [-t|--trace] [-n|--nop] [-s|--stealth] [-i|--interactive] [-b|--backup <ext>] [-e|--exec <cmd>] [-f|--file <cmd-file>] [<file>] [...]"
        gen_tmpfile=yes
        arg_spec="0+"
        opt_spec="v.t.n.s.i.b:e+f:"
        opt_alias="v:verbose,t:trace,n:nop,s:stealth,i:interactive,b:backup,e:exec,f:file"
        opt_v=no
        opt_t=no
        opt_n=no
        opt_s=no
        opt_i=no
        opt_b=""
        opt_e=""
        opt_f=""
        ;;
    guessos )
        str_tool="guessos"
        str_usage=""
        arg_spec="0="
        opt_spec=""
        opt_alias=""
        ;;
    arx )
        str_tool="arx"
        str_usage="[-t|--trace] [-C|--command <cmd>] <op> <archive> [<file> ...]"
        arg_spec="2+"
        opt_spec="t.C:"
        opt_alias="t:trace,C:command"
        opt_t=no
        opt_C="ar"
        ;;
    slo )
        str_tool="slo"
        str_usage="[-p|--prefix <str>] -- -L<dir> -l<lib> [-L<dir> -l<lib> ...]"
        arg_spec="1+"
        opt_spec="p:"
        opt_alias="p:prefix"
        opt_p="SLO_"
        ;;
    scpp )
        str_tool="scpp"
        str_usage="[-v|--verbose] [-p|--preserve] [-f|--filter <filter>] [-o|--output <ofile>] [-t|--template <tfile>] [-M|--mark <mark>] [-D|--define <dname>] [-C|--class <cname>] <file> [<file> ...]"
        gen_tmpfile=yes
        arg_spec="1+"
        opt_spec="v.p.f+o:t:M:D:C:"
        opt_alias="v:verbose,p:preserve,f:filter,o:output,t:template,M:mark,D:define,C:class"
        opt_v=no
        opt_p=no
        opt_f=""
        opt_o="lib.h"
        opt_t="lib.h.in"
        opt_M="%%MARK%%"
        opt_D="cpp"
        opt_C="intern"
        ;;
    version )
        str_tool="version"
        str_usage="[-l|--language <lang>] [-n|--name <name>] [-p|--prefix <prefix>] [-s|--set <version>] [-e|--edit] [-i|--increase <knob>] [-d|--display <type>] <file>"
        arg_spec="1="
        opt_spec="l:n:p:s:i:e.d:"
        opt_alias="l:language,n:name,p:prefix,s:set,e:edit,i:increase,d:display"
        opt_l="txt"
        opt_n="unknown"
        opt_p=""
        opt_s=""
        opt_e="no"
        opt_i=""
        opt_d="short"
        ;;
    path )
        str_tool="path"
        str_usage="[-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename] [-m|--magic] [-p|--path <path>] <str> [<str> ...]"
        gen_tmpfile=yes
        arg_spec="1+"
        opt_spec="s.r.d.b.m.p:"
        opt_alias="s:suppress,r:reverse,d:dirname,b:basename,m:magic,p:path"
        opt_s=no
        opt_r=no
        opt_d=no
        opt_b=no
        opt_m=no
        opt_p="$PATH"
        ;;
    -* )
        echo "$0:Error: unknown option \`$tool'" 2>&1
        echo "$0:Hint:  run \`$0 -h' for usage" 2>&1
        exit 1
        ;;
    * )
        echo "$0:Error: unknown command \`$tool'" 2>&1
        echo "$0:Hint:  run \`$0 -h' for usage" 2>&1
        exit 1
        ;;
esac

##
##  COMMON UTILITY CODE
##

#   commonly used ASCII values
ASC_TAB="	"
ASC_NL="
"

#   determine name of tool
if [ ".$tool" != . ]; then
    #   used inside shtool script
    toolcmd="$0 $tool"
    toolcmdhelp="shtool $tool"
    msgprefix="shtool:$tool"
else
    #   used as standalone script
    toolcmd="$0"
    toolcmdhelp="sh $0"
    msgprefix="$str_tool"
fi

#   parse argument specification string
eval `echo $arg_spec |\
      sed -e 's/^\([0-9]*\)\([+=]\)/arg_NUMS=\1; arg_MODE=\2/'`

#   parse option specification string
eval `echo h.$opt_spec |\
      sed -e 's/\([a-zA-Z0-9]\)\([.:+]\)/opt_MODE_\1=\2;/g'`

#   parse option alias string
eval `echo h:help,$opt_alias |\
      tr 'x-' 'x_' | sed -e 's/\([a-zA-Z0-9]\):\([^,]*\),*/opt_ALIAS_\2=\1;/g'`

#   interate over argument line
opt_PREV=''
while [ $# -gt 0 ]; do
    #   special option stops processing
    if [ ".$1" = ".--" ]; then
        shift
        break
    fi

    #   determine option and argument
    opt_ARG_OK=no
    if [ ".$opt_PREV" != . ]; then
        #   merge previous seen option with argument
        opt_OPT="$opt_PREV"
        opt_ARG="$1"
        opt_ARG_OK=yes
        opt_PREV=''
    else
        #   split argument into option and argument
        case "$1" in
            --[a-zA-Z0-9]*=*)
                eval `echo "x$1" |\
                      sed -e 's/^x--\([a-zA-Z0-9-]*\)=\(.*\)$/opt_OPT="\1";opt_ARG="\2"/'`
                opt_STR=`echo $opt_OPT | tr 'x-' 'x_'`
                eval "opt_OPT=\${opt_ALIAS_${opt_STR}-${opt_OPT}}"
                ;;
            --[a-zA-Z0-9]*)
                opt_OPT=`echo "x$1" | cut -c4-`
                opt_STR=`echo $opt_OPT | tr 'x-' 'x_'`
                eval "opt_OPT=\${opt_ALIAS_${opt_STR}-${opt_OPT}}"
                opt_ARG=''
                ;;
            -[a-zA-Z0-9]*)
                eval `echo "x$1" |\
                      sed -e 's/^x-\([a-zA-Z0-9]\)/opt_OPT="\1";/' \
                          -e 's/";\(.*\)$/"; opt_ARG="\1"/'`
                ;;
            -[a-zA-Z0-9])
                opt_OPT=`echo "x$1" | cut -c3-`
                opt_ARG=''
                ;;
            *)
                break
                ;;
        esac
    fi

    #   eat up option
    shift

    #   determine whether option needs an argument
    eval "opt_MODE=\$opt_MODE_${opt_OPT}"
    if [ ".$opt_ARG" = . -a ".$opt_ARG_OK" != .yes ]; then
        if [ ".$opt_MODE" = ".:" -o ".$opt_MODE" = ".+" ]; then
            opt_PREV="$opt_OPT"
            continue
        fi
    fi

    #   process option
    case $opt_MODE in
        '.' )
            #   boolean option
            eval "opt_${opt_OPT}=yes"
            ;;
        ':' )
            #   option with argument (multiple occurances override)
            eval "opt_${opt_OPT}=\"\$opt_ARG\""
            ;;
        '+' )
            #   option with argument (multiple occurances append)
            eval "opt_${opt_OPT}=\"\$opt_${opt_OPT}\${ASC_NL}\$opt_ARG\""
            ;;
        * )
            echo "$msgprefix:Error: unknown option: \`$opt_OPT'" 1>&2
            echo "$msgprefix:Hint:  run \`$toolcmdhelp -h' or \`man shtool' for details" 1>&2
            exit 1
            ;;
    esac
done
if [ ".$opt_PREV" != . ]; then
    echo "$msgprefix:Error: missing argument to option \`$opt_PREV'" 1>&2
    echo "$msgprefix:Hint:  run \`$toolcmdhelp -h' or \`man shtool' for details" 1>&2
    exit 1
fi

#   process help option
if [ ".$opt_h" = .yes ]; then
    echo "Usage: $toolcmdhelp $str_usage"
    exit 0
fi

#   complain about incorrect number of arguments
case $arg_MODE in
    '=' )
        if [ $# -ne $arg_NUMS ]; then
            echo "$msgprefix:Error: invalid number of arguments (exactly $arg_NUMS expected)" 1>&2
            echo "$msgprefix:Hint:  run \`$toolcmd -h' or \`man shtool' for details" 1>&2
            exit 1
        fi
        ;;
    '+' )
        if [ $# -lt $arg_NUMS ]; then
            echo "$msgprefix:Error: invalid number of arguments (at least $arg_NUMS expected)" 1>&2
            echo "$msgprefix:Hint:  run \`$toolcmd -h' or \`man shtool' for details" 1>&2
            exit 1
        fi
        ;;
esac

#   establish a temporary file on request
if [ ".$gen_tmpfile" = .yes ]; then
    if [ ".$TMPDIR" != . ]; then
        tmpdir="$TMPDIR"
    elif [ ".$TEMPDIR" != . ]; then
        tmpdir="$TEMPDIR"
    else
        tmpdir="/tmp"
    fi
    tmpfile="$tmpdir/.shtool.$$"
    rm -f $tmpfile >/dev/null 2>&1
    touch $tmpfile
    chmod 600 $tmpfile
fi

##
##  DISPATCH INTO SCRIPT BODY
##

case $tool in

echo )
    ##
    ##  echo -- Print string with optional construct expansion
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for WML as buildinfo
    ##
    
    text="$*"
    
    #   check for broken escape sequence expansion
    seo=''
    bytes=`echo '\1' | wc -c | awk '{ printf("%s", $1); }'`
    if [ ".$bytes" != .3 ]; then
        bytes=`echo -E '\1' | wc -c | awk '{ printf("%s", $1); }'`
        if [ ".$bytes" = .3 ]; then
            seo='-E'
        fi
    fi
    
    #   check for existing -n option (to suppress newline)
    minusn=''
    bytes=`echo -n 123 2>/dev/null | wc -c | awk '{ printf("%s", $1); }'`
    if [ ".$bytes" = .3 ]; then
        minusn='-n'
    fi
    
    #   determine terminal bold sequence
    term_bold=''
    term_norm=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%[Bb]'`" != . ]; then
        case $TERM in
            #   for the most important terminal types we directly know the sequences
            xterm|xterm*|vt220|vt220*)
                term_bold=`awk 'BEGIN { printf("%c%c%c%c", 27, 91, 49, 109); }' </dev/null 2>/dev/null`
                term_norm=`awk 'BEGIN { printf("%c%c%c", 27, 91, 109); }' </dev/null 2>/dev/null`
                ;;
            vt100|vt100*)
                term_bold=`awk 'BEGIN { printf("%c%c%c%c%c%c", 27, 91, 49, 109, 0, 0); }' </dev/null 2>/dev/null`
                term_norm=`awk 'BEGIN { printf("%c%c%c%c%c", 27, 91, 109, 0, 0); }' </dev/null 2>/dev/null`
                ;;
            #   for all others, we try to use a possibly existing `tput' or `tcout' utility
            * )
                paths=`echo $PATH | sed -e 's/:/ /g'`
                for tool in tput tcout; do
                    for dir in $paths; do
                        if [ -r "$dir/$tool" ]; then
                            for seq in bold md smso; do # 'smso' is last
                                bold="`$dir/$tool $seq 2>/dev/null`"
                                if [ ".$bold" != . ]; then
                                    term_bold="$bold"
                                    break
                                fi
                            done
                            if [ ".$term_bold" != . ]; then
                                for seq in sgr0 me rmso reset; do # 'reset' is last
                                    norm="`$dir/$tool $seq 2>/dev/null`"
                                    if [ ".$norm" != . ]; then
                                        term_norm="$norm"
                                        break
                                    fi
                                done
                            fi
                            break
                        fi
                    done
                    if [ ".$term_bold" != . -a ".$term_norm" != . ]; then
                        break;
                    fi
                done
                ;;
        esac
        if [ ".$term_bold" = . -o ".$term_norm" = . ]; then
            echo "$msgprefix:Warning: unable to determine terminal sequence for bold mode" 1>&2
        fi
    fi
    
    #   determine user name
    username=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%[uUgG]'`" != . ]; then
        username="$LOGNAME"
        if [ ".$username" = . ]; then
            username="$USER"
            if [ ".$username" = . ]; then
                username="`(whoami) 2>/dev/null |\
                           awk '{ printf("%s", $1); }'`"
                if [ ".$username" = . ]; then
                    username="`(who am i) 2>/dev/null |\
                               awk '{ printf("%s", $1); }'`"
                    if [ ".$username" = . ]; then
                        username='unknown'
                    fi
                fi
            fi
        fi
    fi
    
    #   determine user id
    userid=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%U'`" != . ]; then
        userid="`(id -u) 2>/dev/null`"
        if [ ".$userid" = . ]; then
            str="`(id) 2>/dev/null`"
            if [ ".`echo $str | grep '^uid[ 	]*=[ 	]*[0-9]*('`" != . ]; then
                userid=`echo $str | sed -e 's/^uid[ 	]*=[ 	]*//' -e 's/(.*//'`
            fi
            if [ ".$userid" = . ]; then
                userid=`egrep "^${username}:" /etc/passwd 2>/dev/null | \
                        sed -e 's/[^:]*:[^:]*://' -e 's/:.*$//'`
                if [ ".$userid" = . ]; then
                    userid=`(ypcat passwd) 2>/dev/null |
                            egrep "^${username}:" | \
                            sed -e 's/[^:]*:[^:]*://' -e 's/:.*$//'`
                    if [ ".$userid" = . ]; then
                        userid='?'
                    fi
                fi
            fi
        fi
    fi
    
    #   determine (primary) group id
    groupid=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%[gG]'`" != . ]; then
        groupid=`egrep "^${username}:" /etc/passwd 2>/dev/null | \
                 sed -e 's/[^:]*:[^:]*:[^:]*://' -e 's/:.*$//'`
        if [ ".$groupid" = . ]; then
            groupid=`(ypcat passwd) 2>/dev/null | egrep "^${username}:" | \
                     sed -e 's/[^:]*:[^:]*:[^:]*://' -e 's/:.*$//'`
            if [ ".$groupid" = . ]; then
                groupid='?'
            fi
        fi
    fi
    
    #   determine (primary) group name
    groupname=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%g'`" != . ]; then
        groupname=`egrep "^[^:]*:[^:]*:${groupid}:" /etc/group 2>/dev/null | \
                   sed -e 's/:.*$//'`
        if [ ".$groupname" = . ]; then
            groupname=`(ypcat group) 2>/dev/null | \
                       egrep "^[^:]*:[^:]*:${groupid}:" | \
                       sed -e 's/:.*$//'`
            if [ ".$groupname" = . ]; then
                groupname='?'
            fi
        fi
    fi
    
    #   determine host and domain name
    hostname=''
    domainname=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%h'`" != . ]; then
        hostname="`(uname -n) 2>/dev/null |\
                   awk '{ printf("%s", $1); }'`"
        if [ ".$hostname" = . ]; then
            hostname="`(hostname) 2>/dev/null |\
                       awk '{ printf("%s", $1); }'`"
            if [ ".$hostname" = . ]; then
                hostname='unknown'
            fi
        fi
        case $hostname in
            *.* )
                domainname=".`echo $hostname | cut -d. -f2-`"
                hostname="`echo $hostname | cut -d. -f1`"
                ;;
        esac
    fi
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%d'`" != . ]; then
        if [ ".$domainname" = . ]; then
            if [ -f /etc/resolv.conf ]; then
                domainname="`egrep '^[ 	]*domain' /etc/resolv.conf | head -1 |\
                             sed -e 's/.*domain//' \
                                 -e 's/^[ 	]*//' -e 's/^ *//' -e 's/^	*//' \
                                 -e 's/^\.//' -e 's/^/./' |\
                             awk '{ printf("%s", $1); }'`"
                if [ ".$domainname" = . ]; then
                    domainname="`egrep '^[ 	]*search' /etc/resolv.conf | head -1 |\
                                 sed -e 's/.*search//' \
                                     -e 's/^[ 	]*//' -e 's/^ *//' -e 's/^	*//' \
                                     -e 's/ .*//' -e 's/	.*//' \
                                     -e 's/^\.//' -e 's/^/./' |\
                                 awk '{ printf("%s", $1); }'`"
                fi
            fi
        fi
    fi
    
    #   determine current time
    time_day=''
    time_month=''
    time_year=''
    time_monthname=''
    if [ ".$opt_e" = .yes -a ".`echo $text | egrep '%[DMYm]'`" != . ]; then
        time_day=`date '+%d'`
        time_month=`date '+%m'`
        time_year=`date '+%Y' 2>/dev/null`
        if [ ".$time_year" = . ]; then
            time_year=`date '+%y'`
            case $time_year in
                [5-9][0-9]) time_year="19$time_year" ;;
                [0-4][0-9]) time_year="20$time_year" ;;
            esac
        fi
        case $time_month in
            1|01) time_monthname='Jan' ;;
            2|02) time_monthname='Feb' ;;
            3|03) time_monthname='Mar' ;;
            4|04) time_monthname='Apr' ;;
            5|05) time_monthname='May' ;;
            6|06) time_monthname='Jun' ;;
            7|07) time_monthname='Jul' ;;
            8|08) time_monthname='Aug' ;;
            9|09) time_monthname='Sep' ;;
              10) time_monthname='Oct' ;;
              11) time_monthname='Nov' ;;
              12) time_monthname='Dec' ;;
        esac
    fi
    
    #   expand special ``%x'' constructs
    if [ ".$opt_e" = .yes ]; then
        text=`echo $seo "$text" |\
              sed -e "s/%B/${term_bold}/g" \
                  -e "s/%b/${term_norm}/g" \
                  -e "s/%u/${username}/g" \
                  -e "s/%U/${userid}/g" \
                  -e "s/%g/${groupname}/g" \
                  -e "s/%G/${groupid}/g" \
                  -e "s/%h/${hostname}/g" \
                  -e "s/%d/${domainname}/g" \
                  -e "s/%D/${time_day}/g" \
                  -e "s/%M/${time_month}/g" \
                  -e "s/%Y/${time_year}/g" \
                  -e "s/%m/${time_monthname}/g" 2>/dev/null`
    fi
    
    #   create output
    if [ .$opt_n = .no ]; then
        echo $seo "$text"
    else
        #   the harder part: echo -n is best, because
        #   awk may complain about some \xx sequences.
        if [ ".$minusn" != . ]; then
            echo $seo $minusn "$text"
        else
            echo dummy | awk '{ printf("%s", TEXT); }' TEXT="$text"
        fi
    fi
    ;;

mdate )
    ##
    ##  mdate -- Pretty-print modification time of a file or dir
    ##  Copyright (c) 1995-1997 Free Software Foundation, Inc.
    ##  Originally idea and basis code by Ulrich Drepper
    ##  Enhanced by Ralf S. Engelschall for shtool
    ##
    
    fod="$1"
    case "$opt_o" in
        [dmy][dmy][dmy] )
            ;;
        * ) echo "$msgprefix:Error: invalid argument to option \`-o': $opt_o" 1>&2
            exit 1
            ;;
    esac
    if [ ! -r "$fod" ]; then
        echo "$msgprefix:Error: file or directory not found: $fod" 1>&2
        exit 1
    fi
    
    #   prevent "date" giving response in another language
    LANG=C;    export LANG
    LC_ALL=C;  export LC_ALL
    LC_TIME=C; export LC_TIME
    
    #   get the extended ls output of the file or directory.
    if ls -L /dev/null >/dev/null 2>&1; then
        set - x`ls -L -l -d $fod`
    else
        set - x`ls -l -d $fod`
    fi
    
    #   The month is at least the fourth argument
    #   (3 shifts here, the next inside the loop).
    shift; shift; shift
    
    #   Find the month. Next argument is day, followed by the year or time.
    month=""
    while [ ".$month" = . ]; do
        shift
        case $1 in
            Jan) month=January;   nummonth=1  ;;
            Feb) month=February;  nummonth=2  ;;
            Mar) month=March;     nummonth=3  ;;
            Apr) month=April;     nummonth=4  ;;
            May) month=May;       nummonth=5  ;;
            Jun) month=June;      nummonth=6  ;;
            Jul) month=July;      nummonth=7  ;;
            Aug) month=August;    nummonth=8  ;;
            Sep) month=September; nummonth=9  ;;
            Oct) month=October;   nummonth=10 ;;
            Nov) month=November;  nummonth=11 ;;
            Dec) month=December;  nummonth=12 ;;
        esac
    done
    day="$2"
    year="$3"
    
    #   We finally have to deal with the problem that the "ls" output
    #   gives either the time of the day or the year.
    case $year in
        *:*)
            this_year=`date '+%Y' 2>/dev/null`
            if [ ".$this_year" = . ]; then
                this_year=`date '+%y'`
                case $this_year in
                    [5-9][0-9]) this_year="19$this_year" ;;
                    [0-4][0-9]) this_year="20$this_year" ;;
                esac
            fi
            #   for the following months of the last year the time notation
            #   is usually also used for files modified in the last year.
            this_month=`date '+%m'`
            if (expr $nummonth \> $this_month) >/dev/null; then
                this_year=`expr $this_year - 1`
            fi
            year="$this_year"
            ;;
    esac
    
    #   Optionally fill day and month with leeding zeros
    if [ ".$opt_z" = .yes ]; then
        case $day in
            [0-9][0-9] ) ;;
                 [0-9] ) day="0$day" ;;
        esac
        case $nummonth in
            [0-9][0-9] ) ;;
                 [0-9] ) nummonth="0$nummonth" ;;
        esac
    fi
    
    #   Optionally use digits for month
    if [ ".$opt_d" = .yes ]; then
        month="$nummonth"
    fi
    
    #   Optionally shorten the month name to three characters
    if [ ".$opt_s" = .yes ]; then
        month=`echo $month | cut -c1-3`
    fi
    
    #   Output the resulting date string
    echo dummy | awk '{
        for (i = 0; i < 3; i++) {
            now = substr(order, 1, 1);
            order = substr(order, 2);
            if (now == "d")
                out = day;
            else if (now == "m")
                out = month;
            else if (now == "y")
                out = year;
            if (i < 2)
                printf("%s%s", out, field);
            else
                printf("%s", out);
        }
        if (newline != "yes")
            printf("\n");
    }' "day=$day" "month=$month" "year=$year" \
       "field=$opt_f" "order=$opt_o" "newline=$opt_n"
    ;;

table )
    ##
    ##  table -- Pretty-print a field-separated list as a table
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for Apache
    ##
    
    if [ $opt_c -gt 4 ]; then
        echo "$msgprefix:Error: Invalid number of colums (1..4 allowed only)" 1>&2
        exit 1
    fi
    case "x$opt_F" in
        x? ) ;;
        *  ) echo "$msgprefix:Error: Invalid separator (one char allowed only)" 1>&2; exit 1 ;;
    esac
    
    #   split the list into a table
    list=`
        IFS="$opt_F"
        for entry in $*; do
            if [ ".$entry" != . ]; then
                echo "$entry"
            fi
        done |\
        awk "
            BEGIN { list = \"\"; n = 0; }
            {
                list = list \\$1;
                n = n + 1;
                if (n < $opt_c) {
                    list = list \":\";
                }
                if (n == $opt_c) {
                    list = list \"\\n\";
                    n = 0;
                }
            }
            END { print list; }
         "
    `
    
    #   format table cells and make sure table
    #   doesn't exceed maximum width
    OIFS="$IFS"
    IFS='
'
    for entry in $list; do
        case $opt_c in
            1 ) eval "echo \"\${entry}\" | awk -F: '{ printf(\"%-${opt_w}s\\n\", \$1); }'" ;;
            2 ) eval "echo \"\${entry}\" | awk -F: '{ printf(\"%-${opt_w}s %-${opt_w}s\\n\", \$1, \$2); }'" ;;
            3 ) eval "echo \"\${entry}\" | awk -F: '{ printf(\"%-${opt_w}s %-${opt_w}s %-${opt_w}s\\n\", \$1, \$2, \$3); }'" ;;
            4 ) eval "echo \"\${entry}\" | awk -F: '{ printf(\"%-${opt_w}s %-${opt_w}s %-${opt_w}s %-${opt_w}s\\n\", \$1, \$2, \$3, \$4); }'" ;;
        esac
    done |\
    awk "{
        if (length(\$0) > $opt_s) {
            printf(\"%s\\n\", substr(\$0, 0, $opt_s-1));
        } else {
            print \$0;
        }
    }"
    IFS="$OIFS"
    ;;

prop )
    ##
    ##  prop -- Display progress with a running propeller
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for mod_ssl
    ##
    
    perl=''
    for dir in `echo $PATH | sed -e 's/:/ /g'` .; do
        if [ -f "$dir/perl" ]; then
            perl="$dir/perl"
            break
        fi
    done
    if [ ".$perl" != . ]; then
        #   Perl is preferred because writing to STDERR in
        #   Perl really writes immediately as one would expect
        $perl -e '
            @p = ("|","/","-","\\");
            $i = 0;
            while (<STDIN>) {
                printf(STDERR "\r%s...%s\b", $ARGV[0], $p[$i++]);
                $i = 0 if ($i > 3);
            }
            printf(STDERR "\r%s    \n", $ARGV[0]);
        ' "$opt_p"
    else
        #   But if Perl doesn't exists we use Awk even
        #   some Awk's buffer even the /dev/stderr writing :-(
        awk '
            BEGIN {
                split("|#/#-#\\", p, "#");
                i = 1;
            }
            {
                printf("\r%s%c\b", prefix, p[i++]) > "/dev/stderr";
                if (i > 4) { i = 1; }
            }
            END {
                printf("\r%s    \n", prefix) > "/dev/stderr";
            }
        ' "prefix=$opt_p"
    fi
    ;;

move )
    ##
    ##  move -- Move files with simultaneous substitution
    ##  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for shtool
    ##
    
    src="$1"
    dst="$2"
    
    #   consistency checks
    if [ ".$src" = . -o ".$dst" = . ]; then
        echo "$msgprefix:Error: Invalid arguments" 1>&2
        exit 1
    fi
    if [ ".$src" = ".$dst" ]; then
        echo "$msgprefix:Error: Source and destination files are the same" 1>&2
        exit 1
    fi
    expsrc="$src"
    if [ ".$opt_e" = .yes ]; then
        expsrc="`echo $expsrc`"
    fi
    if [ ".$opt_e" = .yes ]; then
        if [ ".`echo "$src" | sed -e 's;^.*\\*.*$;;'`" = ".$src" ]; then
            echo "$msgprefix:Error: Source doesn't contain wildcard ('*'): $dst" 1>&2
            exit 1
        fi
        if [ ".`echo "$dst" | sed -e 's;^.*%[1-9].*$;;'`" = ".$dst" ]; then
            echo "$msgprefix:Error: Destination doesn't contain substitution ('%N'): $dst" 1>&2
            exit 1
        fi
        if [ ".$expsrc" = ".$src" ]; then
            echo "$msgprefix:Error: Sources not found or no asterisk : $src" 1>&2
            exit 1
        fi
    else
        if [ ! -r "$src" ]; then
            echo "$msgprefix:Error: Source not found: $src" 1>&2
            exit 1
        fi
    fi
    
    #   determine substitution patterns
    if [ ".$opt_e" = .yes ]; then
        srcpat=`echo "$src" | sed -e 's/\\./\\\\./g' -e 's/;/\\;/g' -e 's;\\*;\\\\(.*\\\\);g'`
        dstpat=`echo "$dst" | sed -e 's;%\([1-9]\);\\\\\1;g'`
    fi
    
    #   iterate over source(s)
    for onesrc in $expsrc; do
        if [ .$opt_e = .yes ]; then
            onedst=`echo $onesrc | sed -e "s;$srcpat;$dstpat;"`
        else
            onedst="$dst"
        fi
        errorstatus=0
        if [ ".$opt_v" = .yes ]; then
            echo "$onesrc -> $onedst"
        fi
        if [ ".$opt_p" = .yes ]; then
            if [ -r $onedst ]; then
                if cmp -s $onesrc $onedst; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "rm -f $onesrc" 1>&2
                    fi
                    rm -f $onesrc || errorstatus=$?
                else
                    if [ ".$opt_t" = .yes ]; then
                        echo "mv -f $onesrc $onedst" 1>&2
                    fi
                    mv -f $onesrc $onedst || errorstatus=$?
                fi
            else
                if [ ".$opt_t" = .yes ]; then
                    echo "mv -f $onesrc $onedst" 1>&2
                fi
                mv -f $onesrc $onedst || errorstatus=$?
            fi
        else
            if [ ".$opt_t" = .yes ]; then
                echo "mv -f $onesrc $onedst" 1>&2
            fi
            mv -f $onesrc $onedst || errorstatus=$?
        fi
        if [ $errorstatus -ne 0 ]; then
            break;
        fi
    done
    exit $errorstatus
    ;;

install )
    ##
    ##  install -- Install a program, script or datafile
    ##  Copyright (c) 1997-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for shtool
    ##
    
    #   determine source(s) and destination
    argc=$#
    srcs=""
    while [ $# -gt 1 ]; do
        srcs="$srcs $1"
        shift
    done
    dstpath="$1"
    
    #   type check for destination
    dstisdir=0
    if [ -d $dstpath ]; then
        dstpath=`echo "$dstpath" | sed -e 's:/$::'`
        dstisdir=1
    fi
    
    #   consistency check for destination
    if [ $argc -gt 2 -a $dstisdir = 0 ]; then
        echo "$msgprefix:Error: multiple sources require destination to be directory" 1>&2
        exit 1
    fi
    
    #   iterate over all source(s)
    for src in $srcs; do
        dst=$dstpath
    
        #   if destination is a directory, append the input filename
        if [ $dstisdir = 1 ]; then
            dstfile=`echo "$src" | sed -e 's;.*/\([^/]*\)$;\1;'`
            dst="$dst/$dstfile"
        fi
    
        #   check for correct arguments
        if [ ".$src" = ".$dst" ]; then
            echo "$msgprefix:Warning: source and destination are the same - skipped" 1>&2
            continue
        fi
        if [ -d "$src" ]; then
            echo "$msgprefix:Warning: source \`$src' is a directory - skipped" 1>&2
            continue
        fi
    
        #   make a temp file name in the destination directory
        dsttmp=`echo $dst |\
                sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;' -e 's;^$;.;' \
                    -e "s;\$;/#INST@$$#;"`
    
        #   verbosity
        if [ ".$opt_v" = .yes ]; then
            echo "$src -> $dst" 1>&2
        fi
    
        #   copy or move the file name to the temp name
        #   (because we might be not allowed to change the source)
        if [ ".$opt_C" = .yes ]; then
            opt_c=yes
        fi
        if [ ".$opt_c" = .yes ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "cp $src $dsttmp" 1>&2
            fi
            cp $src $dsttmp || exit $?
        else
            if [ ".$opt_t" = .yes ]; then
                echo "mv $src $dsttmp" 1>&2
            fi
            mv $src $dsttmp || exit $?
        fi
    
        #   adjust the target file
        if [ ".$opt_e" != . ]; then
            sed='sed'
            OIFS="$IFS"; IFS="$ASC_NL"; set -- $opt_e; IFS="$OIFS"
            for e
            do
                sed="$sed -e '$e'"
            done
            cp $dsttmp $dsttmp.old
            eval "$sed <$dsttmp.old >$dsttmp" || exit $?
            rm -f $dsttmp.old
        fi
        if [ ".$opt_s" = .yes ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "strip $dsttmp" 1>&2
            fi
            strip $dsttmp || exit $?
        fi
        if [ ".$opt_o" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "chown $opt_o $dsttmp" 1>&2
            fi
            chown $opt_o $dsttmp || exit $?
        fi
        if [ ".$opt_g" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "chgrp $opt_g $dsttmp" 1>&2
            fi
            chgrp $opt_g $dsttmp || exit $?
        fi
        if [ ".$opt_m" != ".-" ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "chmod $opt_m $dsttmp" 1>&2
            fi
            chmod $opt_m $dsttmp || exit $?
        fi
    
        #   determine whether to do a quick install
        #   (has to be done _after_ the strip was already done)
        quick=no
        if [ ".$opt_C" = .yes ]; then
            if [ -r $dst ]; then
                if cmp -s $src $dst; then
                    quick=yes
                fi
            fi
        fi
    
        #   finally, install the file to the real destination
        if [ $quick = yes ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "rm -f $dsttmp" 1>&2
            fi
            rm -f $dsttmp
        else
            if [ ".$opt_t" = .yes ]; then
                echo "rm -f $dst && mv $dsttmp $dst" 1>&2
            fi
            rm -f $dst && mv $dsttmp $dst
        fi
    done
    ;;

mkdir )
    ##
    ##  mkdir -- Make one or more directories
    ##  Copyright (c) 1996-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for public domain by Noah Friedman <friedman@prep.ai.mit.edu>
    ##  Cleaned up and enhanced for shtool
    ##
    
    errstatus=0
    for p in ${1+"$@"}; do
        #   if the directory already exists...
        if [ -d "$p" ]; then
            if [ ".$opt_f" = .no -a ".$opt_p" = .no ]; then
                echo "$msgprefix:Error: directory already exists: $p" 1>&2
                errstatus=1
                break
            else
                continue
            fi
        fi
        #   if the directory has to be created...
        if [ ".$opt_p" = .no ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "mkdir $p" 1>&2
            fi
            mkdir $p || errstatus=$?
            if [ ".$opt_m" != . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "chmod $opt_m $p" 1>&2
                fi
                chmod $opt_m $p || errstatus=$?
            fi
        else
            #   the smart situation
            set fnord `echo ":$p" |\
                       sed -e 's/^:\//%/' \
                           -e 's/^://' \
                           -e 's/\// /g' \
                           -e 's/^%/\//'`
            shift
            pathcomp=''
            for d in ${1+"$@"}; do
                pathcomp="$pathcomp$d"
                case "$pathcomp" in
                    -* ) pathcomp="./$pathcomp" ;;
                esac
                if [ ! -d "$pathcomp" ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "mkdir $pathcomp" 1>&2
                    fi
                    mkdir $pathcomp || errstatus=$?
                    if [ ".$opt_m" != . ]; then
                        if [ ".$opt_t" = .yes ]; then
                            echo "chmod $opt_m $pathcomp" 1>&2
                        fi
                        chmod $opt_m $pathcomp || errstatus=$?
                    fi
                fi
                pathcomp="$pathcomp/"
            done
        fi
    done
    exit $errstatus
    ;;

mkln )
    ##
    ##  mkln -- Make link with calculation of relative paths
    ##  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for shtool
    ##
    
    args=$?
    srcs=""
    while [ $# -gt 1 ]; do
        srcs="$srcs $1"
        shift
    done
    dst="$1"
    if [ ! -d $dst ]; then
        if [ $args -gt 2 ]; then
            echo "$msgprefix:Error: multiple sources not allowed when target isn't a directory" 1>&2
            exit 1
        fi
    fi
    
    #   determine link options
    lnopt=""
    if [ ".$opt_f" = .yes ]; then
        lnopt="$lnopt -f"
    fi
    if [ ".$opt_s" = .yes ]; then
        lnopt="$lnopt -s"
    fi
    
    #   iterate over sources
    for src in $srcs; do
        #   determine if one of the paths is an absolute path,
        #   because then we _have_ to use an absolute symlink
        oneisabs=0
        srcisabs=0
        dstisabs=0
        case $src in
            /* ) oneisabs=1; srcisabs=1 ;;
        esac
        case $dst in
            /* ) oneisabs=1; dstisabs=1 ;;
        esac
    
        #   split source and destination into dir and base name
        if [ -d $src ]; then
            srcdir=`echo $src | sed -e 's;/*$;;'`
            srcbase=""
        else
            srcdir=`echo  $src | sed -e 's;^[^/]*$;;' -e 's;^\(.*/\)[^/]*$;\1;' -e 's;\(.\)/$;\1;'`
            srcbase=`echo $src | sed -e 's;.*/\([^/]*\)$;\1;'`
        fi
        if [ -d $dst ]; then
            dstdir=`echo $dst | sed -e 's;/*$;;'`
            dstbase=""
        else
            dstdir=`echo  $dst | sed -e 's;^[^/]*$;;' -e 's;^\(.*/\)[^/]*$;\1;' -e 's;\(.\)/$;\1;'`
            dstbase=`echo $dst | sed -e 's;.*/\([^/]*\)$;\1;'`
        fi
    
        #   consistency check
        if [ ".$dstdir" != . ]; then
            if [ ! -d $dstdir ]; then
                echo "$msgprefix:Error: destination directory not found: $dstdir" 1>&2
                exit 1
            fi
        fi
    
        #   make sure the source is reachable from the destination
        if [ $dstisabs = 1 ]; then
            if [ $srcisabs = 0 ]; then
                if [ -d $srcdir ]; then
                    srcdir="`cd $srcdir; pwd | sed -e 's;/*$;;'`"
                    srcisabs=1
                    oneisabs=1
                fi
            fi
        fi
    
        #   split away a common prefix
        prefix=""
        if [ ".$srcdir" = ".$dstdir" -a ".$srcdir" != . ]; then
            prefix="$srcdir/"
            srcdir=""
            dstdir=""
        else
            while [ ".$srcdir" != . -a ".$dstdir" != . ]; do
                presrc=`echo $srcdir | sed -e 's;^\([^/]*\)/.*;\1;'`
                predst=`echo $dstdir | sed -e 's;^\([^/]*\)/.*;\1;'`
                if [ ".$presrc" != ".$predst" ]; then
                    break
                fi
                prefix="$prefix$presrc/"
                srcdir=`echo $srcdir | sed -e 's;^[^/]*/*;;'`
                dstdir=`echo $dstdir | sed -e 's;^[^/]*/*;;'`
            done
        fi
    
        #   destination prefix is just the common prefix
        dstpre="$prefix"
    
        #   determine source prefix which is the reverse directory
        #   step-up corresponding to the destination directory
        srcpre=""
        if [ $oneisabs = 0 ] || [ ".$prefix" != . -a ".$prefix" != ./ ]; then
            pl="$dstdir/"
            OIFS="$IFS"; IFS='/'
            for pe in $pl; do
                [ ".$pe" = . ] && continue
                srcpre="../$srcpre"
            done
            IFS="$OIFS"
        else
            if [ $srcisabs = 1 ]; then
                srcpre="$prefix"
            fi
        fi
    
        #   determine destination symlink name
        if [ ".$dstbase" = . ]; then
            if [ ".$srcbase" != . ]; then
                dstbase="$srcbase"
            else
                dstbase=`echo "$prefix$srcdir" | sed -e 's;/*$;;' -e 's;.*/\([^/]*\)$;\1;'`
            fi
        fi
    
        #   now finalize source and destination directory paths
        srcdir=`echo $srcdir | sed -e 's;\([^/]\)$;\1/;'`
        dstdir=`echo $dstdir | sed -e 's;\([^/]\)$;\1/;'`
    
        #   run the final link command
        if [ ".$opt_t" = .yes ]; then
            echo "ln$lnopt $srcpre$srcdir$srcbase $dstpre$dstdir$dstbase"
        fi
        eval ln$lnopt $srcpre$srcdir$srcbase $dstpre$dstdir$dstbase
    done
    ;;

mkshadow )
    ##
    ##  mkshadow -- Make a shadow tree through symbolic links
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for Apache
    ##
    
    #   source and destination directory
    src=`echo "$1" | sed -e 's:/$::' -e 's:^\./\(.\):\1:'`
    dst=`echo "$2" | sed -e 's:/$::' -e 's:^\./\(.\):\1:'`
    
    #   check whether source exists
    if [ ! -d $src ]; then
        echo "$msgprefix:Error: source directory not found: \`$src'" 1>&2
        exit 1
    fi
    
    #   determine if one of the paths is an absolute path,
    #   because then we have to use an absolute symlink
    oneisabs=0
    case $src in
        /* ) oneisabs=1 ;;
    esac
    case $dst in
        /* ) oneisabs=1 ;;
    esac
    
    #   determine reverse directory for destination directory
    dstrevdir=''
    if [ $oneisabs = 0 ]; then
        #   derive reverse path from forward path
        pwd=`pwd`
        OIFS="$IFS"; IFS='/'
        for pe in $dst; do
            if [ "x$pe" = "x.." ]; then
                OIFS2="$IFS"; IFS="$DIFS"
                eval `echo "$pwd" |\
                      sed -e 's:\([^/]*\)$:; dir="\1":' \
                          -e 's:^\(.*\)/[^/]*;:pwd="\1";:'\
                          -e 's:^;:pwd="";:'`
                dstrevdir="$dir/$dstrevdir"
                IFS="$OIFS2"
            else
                dstrevdir="../$dstrevdir"
            fi
        done
        IFS="$OIFS"
    else
        src="`cd $src; pwd`";
    fi
    
    #   create directory tree at destination
    if [ ! -d $dst ]; then
        if [ ".$opt_t" = .yes ]; then
            echo "mkdir $dst" 1>&2
        fi
        mkdir $dst
    fi
    if [ ".$opt_a" = .yes ]; then
        DIRS=`cd $src; find . -type d -print |\
              sed -e '/^\.$/d' -e 's:^\./::'`
    else
        DIRS=`cd $src; find . -type d -print |\
              sed -e '/\/CVS/d' -e '/^\.$/d' -e 's:^\./::'`
    fi
    for dir in $DIRS; do
        if [ ".$opt_t" = .yes ]; then
            echo "mkdir $dst/$dir" 1>&2
        fi
        mkdir $dst/$dir
    done
    
    #   fill directory tree with symlinks to files
    if [ ".$opt_a" = .yes ]; then
        FILES="`cd $src; find . -depth -print |\
                sed -e 's/^\.\///'`"
    else
        FILES="`cd $src; find . -depth -print |\
                sed -e '/\.o$/d' -e '/\.a$/d' -e '/\.so$/d' \
                    -e '/\.cvsignore$/d' -e '/\/CVS/d' \
                    -e '/\/\.#/d' -e '/\.orig$/d' \
                    -e 's/^\.\///'`"
    fi
    for file in $FILES; do
         #  don't use `-type f' above for find because of symlinks
         if [ -d "$src/$file" ]; then
             continue
         fi
         basename=`echo $file | sed -e 's:^.*/::'`
         dir=`echo $file | sed -e 's:[^/]*$::' -e 's:/$::' -e 's:$:/:' -e 's:^/$::'`
         from=`echo "$src/$file" | sed -e 's/^\.\///'`
         to="$dst/$dir$basename"
         if [ $oneisabs = 0 ]; then
             if [ ".$dir" != . ]; then
                 subdir=`echo $dir | sed -e 's:/$::'`
                 #   derive reverse path from forward path
                 revdir=''
                 OIFS="$IFS"; IFS='/'
                 for pe in $subdir; do
                     revdir="../$revdir"
                 done
                 IFS="$OIFS"
                 #   finalize from
                 from="$revdir$from"
             fi
             from="$dstrevdir$from"
         fi
         if [ ".$opt_v" = .yes ]; then
             echo "    $to" 1>&2
         fi
         if [ ".$opt_t" = .yes ]; then
             echo "ln -s $from $to" 1>&2
         fi
         ln -s $from $to
    done
    ;;

fixperm )
    ##
    ##  fixperm -- Fix file permissions inside a source tree
    ##  Copyright (c) 1996-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for ePerl
    ##
    
    paths="$*"
    
    #   check whether the test command supports the -x option
    if [ -x /bin/sh ] 2>/dev/null; then
        minusx="-x"
    else
        minusx="-r"
    fi
    
    #   iterate over paths
    for p in $paths; do
        for file in `find $p -depth -print`; do
            if [ -f $file ]; then
                if [ $minusx $file ]; then
                    if [ ".$opt_v" = .yes ]; then
                        echo "-rwxrwxr-x $file" 2>&1
                    fi
                    if [ ".$opt_t" = .yes ]; then
                        echo "chmod 775 $file" 2>&1
                    fi
                    chmod 775 $file
                else
                    if [ ".$opt_v" = .yes ]; then
                        echo "-rw-rw-r-- $file" 2>&1
                    fi
                    if [ ".$opt_t" = .yes ]; then
                        echo "chmod 664 $file" 2>&1
                    fi
                    chmod 664 $file
                fi
                continue
            fi
            if [ -d $file ]; then
                if [ ".$opt_v" = .yes ]; then
                    echo "drwxrwxr-x $file" 2>&1
                fi
                if [ ".$opt_t" = .yes ]; then
                    echo "chmod 775 $file" 2>&1
                fi
                chmod 775 $file
                continue
            fi
            if [ ".$opt_v" = .yes ]; then
                echo "?????????? $file" 2>&1
            fi
        done
    done
    ;;

rotate )
    ##
    ##  rotate -- Logfile rotation
    ##  Copyright (c) 2001-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for use in OpenPKG
    ##
    
    #   make sure we have at least one file to rotate
    if [ ".$opt_n" = .0 ]; then
        echo "$msgprefix:Error: invalid argument \`$opt_n' to option -n." 1>&2
        exit 1
    fi
    
    #   canonicalize -s option argument
    if [ ".$opt_s" != . ]; then
        if [ ".`expr $opt_s : '[0-9]*$'`" != .0 ]; then
            :
        elif [ ".`expr $opt_s : '[0-9]*[Kk]$'`" != .0 ]; then
            opt_s=`expr $opt_s : '\([0-9]*\)[Kk]$'`
            opt_s=`expr $opt_s \* 1024`
        elif [ ".`expr $opt_s : '[0-9]*[Mm]$'`" != .0 ]; then
            opt_s=`expr $opt_s : '\([0-9]*\)[Mm]$'`
            opt_s=`expr $opt_s \* 1048576` # 1024*1024
        elif [ ".`expr $opt_s : '[0-9]*[Gg]$'`" != .0 ]; then
            opt_s=`expr $opt_s : '\([0-9]*\)[Gg]$'`
            opt_s=`expr $opt_s \* 1073741824` # 1024*1024*1024
        else
            echo "$msgprefix:Error: invalid argument \`$opt_s' to option -s." 1>&2
            exit 1
        fi
    fi
    
    #   option -d/-z consistency
    if [ ".$opt_d" = .yes -a ".$opt_z" = . ]; then
        echo "$msgprefix:Error: option -d requires option -z." 1>&2
        exit 1
    fi
    
    #   make sure target directory exists
    if [ ".$opt_a" != . ]; then
        if [ ! -d $opt_a ]; then
            if [ ".$opt_f" = .no ]; then
                echo "$msgprefix:Error: archive directory \`$opt_a' does not exist." 1>&2
                exit 1
            fi
            mkdir $opt_a || exit $?
            chmod 755 $opt_a
        fi
        if [ ! -w $opt_a ]; then
            echo "$msgprefix:Error: archive directory \`$opt_a' not writable." 1>&2
            exit 1
        fi
    fi
    
    #   determine compression approach
    if [ ".$opt_z" != . ]; then
        comp_lvl="$opt_z"
        comp_prg=""
        case $comp_lvl in
            *:* ) eval `echo $comp_lvl |\
                        sed -e 's%^\(.*\):\(.*\)$%comp_prg="\1"; comp_lvl="\2"%'` ;;
        esac
    
        #   compression level consistency
        case $comp_lvl in
            [0-9] )
                ;;
            * ) echo "$msgprefix:Error: invalid compression level \`$comp_lvl'" 1>&2
                exit 1
                ;;
        esac
    
        #   determine a suitable compression tool
        if [ ".$comp_prg" = . ]; then
            #   check whether the test command supports the -x option
            if [ -x /bin/sh ] 2>/dev/null; then
                minusx="-x"
            else
                minusx="-r"
            fi
            #   search for tools in $PATH
            paths="`echo $PATH |\
                    sed -e 's%/*:%:%g' -e 's%/*$%%' \
                        -e 's/^:/.:/' -e 's/::/:.:/g' -e 's/:$/:./' \
                        -e 's/:/ /g'`"
            for prg in bzip2 gzip compress; do
                for path in $paths; do
                    if [ $minusx "$path/$prg" -a ! -d "$path/$prg" ]; then
                        comp_prg="$prg"
                        break
                    fi
                done
                if [ ".$comp_prg" != . ]; then
                    break
                fi
            done
            if [ ".$comp_prg" = . ]; then
                echo "$msgprefix:Error: no suitable compression tool found in \$PATH" 1>&2
                exit 1
            fi
        fi
    
        #   determine standard compression extension
        #   and make sure it is a known tool
        case $comp_prg in
            */bzip2    | bzip2    ) comp_ext="bz2" comp_lvl="-$comp_lvl" ;;
            */gzip     | gzip     ) comp_ext="gz"  comp_lvl="-$comp_lvl" ;;
            */compress | compress ) comp_ext="Z";  comp_lvl=""           ;;
            * ) echo "$msgprefix:Error: tool \`$comp_prg' is not a known compression tool" 1>&2
                exit 1
                ;;
        esac
        comp_suf=".$comp_ext"
    fi
    
    #   iterate over all given logfile arguments
    for file in $*; do
        #   make sure the logfile exists
        if [ ! -f $file ]; then
            if [ ".$opt_f" = .yes ]; then
                continue
            fi
            echo "$msgprefix:Error: logfile \`$file' not found" 1>&2
            exit 1
        fi
    
        #   determine log directory (where original logfile is placed)
        ldir="."
        case $file in
            */* ) eval `echo $file | sed -e 's%^\(.*\)/\([^/]*\)$%ldir="\1"; file="\2";%'` ;;
        esac
    
        #   determine archive directory (where rotated logfiles are placed)
        adir="$ldir"
        if [ ".$opt_a" != . ]; then
            case "$opt_a" in
                /* | ./* ) adir="$opt_a" ;;
                * ) adir="$ldir/$opt_a"  ;;
            esac
        fi
    
        #   optionally take logfile size into account
        if [ ".$opt_s" != . ]; then
            #   determine size of logfile
            set -- `ls -l $ldir/$file | sed -e 's; -> .*$;;' -e 's;[ 	][ 	]*; ;g'`
            n=`expr $# - 4`
            eval "size=\`echo \${$n}\`"
    
            #   skip logfile if size is still too small
            if [ $size -lt $opt_s ]; then
                if [ ".$opt_v" = .yes ]; then
                    echo "$ldir/$file: still too small in size -- skipping"
                fi
                continue
            fi
        fi
    
        #   verbosity
        if [ ".$opt_v" = .yes ]; then
            echo "rotating $ldir/$file"
        fi
    
        #   execute prolog
        if [ ".$opt_P" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "$opt_P"
            fi
            eval $opt_P
            [ $? -ne 0 ] && exit $?
        fi
    
        #   kick away out-rotated logfile
        n=`expr $opt_n - 1`
        n=`echo dummy | awk "{ printf(\"%0${opt_p}d\", n); }" n=$n`
        if [ -f "${adir}/${file}.${n}${comp_suf}" ]; then
            #   optionally migrate away the out-rotated logfile
            if [ ".$opt_M" != . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "$opt_M ${adir}/${file}.${n}${comp_suf}"
                fi
                eval "$opt_M ${adir}/${file}.${n}${comp_suf}"
                [ $? -ne 0 ] && exit $?
            fi
            #   finally get rid of the out-rotated logfile
            if [ ".$opt_t" = .yes ]; then
                echo "rm -f ${adir}/${file}.${n}${comp_suf}"
            fi
            rm -f ${adir}/${file}.${n}${comp_suf} || exit $?
        fi
    
        #   rotate already archived logfiles
        while [ $n -gt 0 ]; do
            m=$n
            n=`expr $n - 1`
            n=`echo dummy | awk "{ printf(\"%0${opt_p}d\", n); }" n=$n`
            if [ $n -eq 0 -a ".$opt_d" = .yes ]; then
                #   special case: first rotation file under delayed compression situation
                if [ ! -f "${adir}/${file}.${n}" ]; then
                    continue
                fi
    
                #   compress file (delayed)
                if [ ".$opt_b" = .yes ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "mv ${adir}/${file}.${n} ${adir}/${file}.${m}"
                    fi
                    mv ${adir}/${file}.${n} ${adir}/${file}.${m} || exit $?
                    if [ ".$opt_t" = .yes ]; then
                        echo "(${comp_prg} ${comp_lvl} <${adir}/${file}.${m} >${adir}/${file}.${m}${comp_suf}; rm -f ${adir}/${file}.${m}) &"
                    fi
                    ( ${comp_prg} ${comp_lvl} \
                          <${adir}/${file}.${m} \
                          >${adir}/${file}.${m}${comp_suf} || exit $?
                      rm -f ${adir}/${file}.${m} || exit $?
                    ) </dev/null >/dev/null 2>&1 &
                else
                    if [ ".$opt_t" = .yes ]; then
                        echo "${comp_prg} ${comp_lvl} <${adir}/${file}.${n} >${adir}/${file}.${m}${comp_suf}"
                    fi
                    ${comp_prg} ${comp_lvl} \
                        <${adir}/${file}.${n} \
                        >${adir}/${file}.${m}${comp_suf} || exit $?
                    if [ ".$opt_t" = .yes ]; then
                        echo "rm -f ${adir}/${file}.${n}"
                    fi
                    rm -f ${adir}/${file}.${n} || exit $?
                fi
    
                #   fix file attributes
                if [ ".$opt_o" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chown $opt_o ${adir}/${file}.${m}${comp_suf}"
                    fi
                    chown $opt_o ${adir}/${file}.${m}${comp_suf} || exit $?
                fi
                if [ ".$opt_g" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chgrp $opt_g ${adir}/${file}.${m}${comp_suf}"
                    fi
                    chgrp $opt_g ${adir}/${file}.${m}${comp_suf} || exit $?
                fi
                if [ ".$opt_m" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chmod $opt_m ${adir}/${file}.${m}${comp_suf}"
                    fi
                    chmod $opt_m ${adir}/${file}.${m}${comp_suf} || exit $?
                fi
            else
                #   standard case: second and following rotation file
                if [ ! -f "${adir}/${file}.${n}${comp_suf}" ]; then
                    continue
                fi
                if [ ".$opt_t" = .yes ]; then
                    echo "mv ${adir}/${file}.${n}${comp_suf} ${adir}/${file}.${m}${comp_suf}"
                fi
                mv ${adir}/${file}.${n}${comp_suf} ${adir}/${file}.${m}${comp_suf} || exit $?
            fi
        done
    
        #   move away current logfile
        if [ ".$opt_c" = .yes ]; then
            #   approach: copy[+truncate]
            if [ ".$opt_t" = .yes ]; then
                echo "cp -p ${ldir}/${file} ${adir}/${file}.${n}"
            fi
            cp -p ${ldir}/${file} ${adir}/${file}.${n} || exit $?
            if [ ".$opt_r" = .no ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "cp /dev/null ${ldir}/${file}"
                fi
                cp /dev/null ${ldir}/${file} || exit $?
            fi
        else
            #   approach: move[+touch]
            if [ ".$opt_t" = .yes ]; then
                echo "mv ${ldir}/${file} ${adir}/${file}.${n}"
            fi
            mv ${ldir}/${file} ${adir}/${file}.${n} || exit $?
            if [ ".$opt_r" = .no ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "touch ${ldir}/${file}"
                fi
                touch ${ldir}/${file} || exit $?
                #   fix file attributes
                if [ ".$opt_o" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chown $opt_o ${ldir}/${file}"
                    fi
                    chown $opt_o ${ldir}/${file} || exit $?
                fi
                if [ ".$opt_g" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chgrp $opt_g ${ldir}/${file}"
                    fi
                    chgrp $opt_g ${ldir}/${file} || exit $?
                fi
                if [ ".$opt_m" != . ]; then
                    if [ ".$opt_t" = .yes ]; then
                        echo "chmod $opt_m ${ldir}/${file}"
                    fi
                    chmod $opt_m ${ldir}/${file} || exit $?
                fi
            fi
        fi
    
        #   regular compression step
        if [ ".$opt_z" != . -a ".$opt_d" = .no ]; then
            #   compress file
            if [ ".$opt_b" = .yes ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "(${comp_prg} ${comp_lvl} <${adir}/${file}.${n} >${adir}/${file}.${n}${comp_suf}; rm -f ${adir}/${file}.${n}) &"
                fi
                ( ${comp_prg} ${comp_lvl} \
                      <${adir}/${file}.${n} \
                      >${adir}/${file}.${n}${comp_suf} || exit $?
                  rm -f ${adir}/${file}.${n} || exit $?
                ) </dev/null >/dev/null 2>&1 &
            else
                if [ ".$opt_t" = .yes ]; then
                    echo "${comp_prg} ${comp_lvl} <${adir}/${file}.${n} >${adir}/${file}.${n}${comp_suf}"
                fi
                ${comp_prg} ${comp_lvl} \
                    <${adir}/${file}.${n} \
                    >${adir}/${file}.${n}${comp_suf} || exit $?
                if [ ".$opt_t" = .yes ]; then
                    echo "rm -f ${opt_a}${file}.${n}"
                fi
                rm -f ${adir}/${file}.${n} || exit $?
            fi
    
            #   fix file attributes
            if [ ".$opt_o" != . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "chown $opt_o ${adir}/${file}.${n}${comp_suf}"
                fi
                chown $opt_o ${adir}/${file}.${n}${comp_suf} || exit $?
            fi
            if [ ".$opt_g" != . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "chgrp $opt_g ${adir}/${file}.${n}${comp_suf}"
                fi
                chgrp $opt_g ${adir}/${file}.${n}${comp_suf} || exit $?
            fi
            if [ ".$opt_m" != . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "chmod $opt_m ${adir}/${file}.${n}${comp_suf}"
                fi
                chmod $opt_m ${adir}/${file}.${n}${comp_suf} || exit $?
            fi
        fi
    
        #   execute epilog
        if [ ".$opt_E" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "$opt_E"
            fi
            eval $opt_E
            [ $? -ne 0 ] && exit $?
        fi
    done
    ;;

tarball )
    ##
    ##  tarball -- Roll distribution tarballs
    ##  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for shtool
    ##
    
    srcs="$*"
    
    #   check whether the test command supports the -x option
    if [ -x /bin/sh ] 2>/dev/null; then
        minusx="-x"
    else
        minusx="-r"
    fi
    
    #   find the tools
    paths="`echo $PATH |\
            sed -e 's%/*:%:%g' -e 's%/*$%%' \
                -e 's/^:/.:/' -e 's/::/:.:/g' -e 's/:$/:./' \
                -e 's/:/ /g'`"
    for spec in find:gfind,find tar:gtar,tar tardy:tardy,tarcust; do
        prg=`echo $spec | sed -e 's/:.*$//'`
        tools=`echo $spec | sed -e 's/^.*://'`
        eval "prg_${prg}=''"
        #   iterate over tools
        for tool in `echo $tools | sed -e 's/,/ /g'`; do
            #   iterate over paths
            for path in $paths; do
                if [ $minusx "$path/$tool" -a ! -d "$path/$tool" ]; then
                    eval "prg_${prg}=\"$path/$tool\""
                    break
                fi
            done
            eval "val=\$prg_${prg}"
            if [ ".$val" != . ]; then
                break
            fi
        done
    done
    
    #   expand source paths
    exclude=''
    for pat in `echo $opt_e | sed 's/,/ /g'`; do
        exclude="$exclude | grep -v '$pat'"
    done
    if [ ".$opt_t" = .yes ]; then
        echo "cp /dev/null $tmpfile.lst" 1>&2
    fi
    cp /dev/null $tmpfile.lst
    for src in $srcs; do
        if [ -d $src ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "(cd $src && $prg_find . -type f -depth -print) | sed -e 's:^\\.\$::' -e 's:^\\./::' | cat $exclude >>$tmpfile.lst" 1>&2
            fi
            (cd $src && $prg_find . -type f -depth -print) |\
            sed -e 's:^\.$::' -e 's:^\./::' | eval cat $exclude >>$tmpfile.lst
        else
            if [ ".$opt_t" = .yes ]; then
                echo "echo $src >>$tmpfile.lst" 1>&2
            fi
            echo $src >>$tmpfile.lst
        fi
    done
    sort <$tmpfile.lst >$tmpfile.lst.n
    mv $tmpfile.lst.n $tmpfile.lst
    if [ ".$opt_v" = .yes ]; then
        cat $tmpfile.lst | sed -e 's/^/  /' 1>&2
    fi
    
    #   determine tarball file and directory name
    if [ ".$opt_o" != . ]; then
        tarfile="$opt_o"
        if [ ".$opt_d" != . ]; then
            tarname="$opt_d"
        else
            tarname=`echo $tarfile | sed -e 's/\.tar.*$//' -e 's;.*/\([^/]*\)$;\1;'`
        fi
    else
        if [ ".$opt_d" != . ]; then
            tarname="$opt_d"
        elif [ -d "$from" ]; then
            tarname=`echo $from | sed -e 's;.*/\([^/]*\)$;\1;'`
        else
            tarname="out"
        fi
        tarfile="$tarname.tar"
    fi
    
    #   roll the tarball
    compress=''
    if [ ".$opt_c" != . ]; then
        compress="| $opt_c"
    fi
    if [ ".$prg_tardy" != . ]; then
        #   the elegant hackers way
        tardy_opt="--prefix=$tarname"
        tardy_opt="$tardy_opt --user_number=0 --group_number=0" # security!
        if [ ".$opt_u" != . ]; then
            tardy_opt="$tardy_opt --user_name=$opt_u"
        fi
        if [ ".$opt_g" != . ]; then
            tardy_opt="$tardy_opt --group_name=$opt_g"
        fi
        if [ ".$opt_t" = .yes ]; then
            echo "cat $tmpfile.lst | xargs $prg_tar cf - | $prg_tardy $tardy_opt | cat $compress >$tmpfile.out" 1>&2
        fi
        cat $tmpfile.lst |\
        xargs $prg_tar cf - |\
        $prg_tardy $tardy_opt |\
        eval cat $compress >$tmpfile.out
        if [ ".$opt_t" = .yes ]; then
            echo "cp $tmpfile.out $tarfile" 1>&2
        fi
        cp $tmpfile.out $tarfile
    else
        #  the portable standard way
        if [ ".$opt_t" = .yes ]; then
            echo "mkdir $tmpdir/$tarname" 1>&2
        fi
        mkdir $tmpdir/$tarname || exit 1
        if [ ".$opt_t" = .yes ]; then
            echo "cat $tmpfile.lst | xargs $prg_tar cf - | (cd $tmpdir/$tarname && $prg_tar xf -)" 1>&2
        fi
        cat $tmpfile.lst |\
        xargs $prg_tar cf - |\
        (cd $tmpdir/$tarname && $prg_tar xf -)
        if [ ".$opt_u" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "chown -R $opt_u $tmpdir/$tarname >/dev/null 2>&1" 2>&1
            fi
            chown -R $opt_u $tmpdir/$tarname >/dev/null 2>&1 ||\
            echo "$msgprefix:Warning: cannot set user name \`$opt_u' (would require root priviledges)"
        fi
        if [ ".$opt_g" != . ]; then
            if [ ".$opt_t" = .yes ]; then
                echo "chgrp -R $opt_g $tmpdir/$tarname >/dev/null 2>&1" 2>&1
            fi
            chgrp -R $opt_g $tmpdir/$tarname >/dev/null 2>&1 ||\
            echo "$msgprefix:Warning: cannot set group name \`$opt_g' (would require root priviledges)"
        fi
        if [ ".$opt_t" = .yes ]; then
            echo "(cd $tmpdir && $prg_find $tarname -type f -depth -print | sort | xargs $prg_tar cf -) | cat $compress >$tmpfile.out" 1>&2
        fi
        (cd $tmpdir && $prg_find $tarname -type f -depth -print | sort | xargs $prg_tar cf -) |\
        eval cat $compress >$tmpfile.out
        if [ ".$opt_t" = .yes ]; then
            echo "cp $tmpfile.out $tarfile" 1>&2
        fi
        cp $tmpfile.out $tarfile
        if [ ".$opt_t" = .yes ]; then
            echo "rm -rf $tmpdir/$tarname" 1>&2
        fi
        rm -rf $tmpdir/$tarname
    fi
    
    #   cleanup
    if [ ".$opt_t" = .yes ]; then
        echo "rm -f $tmpfile.lst $tmpfile.out" 1>&2
    fi
    rm -f $tmpfile.lst $tmpfile.out
    ;;

subst )
    ##
    ##  subst -- Apply sed(1) substitution operations
    ##  Copyright (c) 2001-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for OpenPKG's rpmtool
    ##
    
    #   remember optional list of file(s)
    files="$*"
    
    #   parameter consistency check
    if [ $# -eq 0 -a ".$opt_b" != . ]; then
        echo "$msgprefix:Error: option -b cannot be applied to stdin" 1>&2
        exit 1
    fi
    if [ $# -eq 0 -a ".$opt_s" = .yes ]; then
        echo "$msgprefix:Error: option -s cannot be applied to stdin" 1>&2
        exit 1
    fi
    
    #   build underlying sed(1) command
    sedcmd='sed'
    if [ ".$opt_e" != . ]; then
        OIFS="$IFS"; IFS="$ASC_NL"; set -- $opt_e; IFS="$OIFS"
        for e
        do
            sedcmd="$sedcmd -e '$e'" 
        done
    elif [ ".$opt_f" != . ]; then
        if [ ! -f $opt_f ]; then
            echo "$msgprefix:Error: command file \`$opt_f' not found or not a regular file" 1>&2
            exit 1
        fi
        sedcmd="$sedcmd -f '$opt_f'"
    else
        echo "$msgprefix:Error: either -e option(s) or -f option required" 1>&2
        exit 1
    fi
    
    #   determine extension for original file
    orig=".orig"
    if [ ".$opt_b" != . ]; then
        orig="$opt_b"
    fi
    
    #   apply sed(1) operation(s)
    if [ ".$files" != . ]; then
        #   apply operation(s) to files
        for file in $files; do
            test ".$file" = . && continue
            if [ ! -f $file ]; then
                echo "$msgprefix:Warning: file \`$file' not found or not a regular file" 1>&2
                continue
            fi
    
            #   handle interactive mode
            if [ ".$opt_i" = .yes ]; then
                eval "$sedcmd <$file >$file.new"
                skip=no
                if cmp $file $file.new >/dev/null 2>&1; then
                    rm -f $file.new
                    skip=yes
                else
                    (diff -u1 $file $file.new >$tmpfile) 2>/dev/null
                    if [ ".`cat $tmpfile`" = . ]; then
                        (diff -C1 $file $file.new >$tmpfile) 2>/dev/null
                        if [ ".`cat $tmpfile`" = . ]; then
                            echo "$msgprefix:Warning: unable to show difference for file \`$file'" 1>&2
                            cp /dev/null $tmpfile
                        fi
                    fi
                    rm -f $file.new
                    cat $tmpfile
                    echo dummy | awk '{ printf("%s", TEXT); }' TEXT=">>> Apply [Y/n]: "
                    read input
                    if [ ".$input" != .Y ] &&\
                       [ ".$input" != .y ] &&\
                       [ ".$input" != . ]; then
                       skip=yes
                    fi
                fi
                if [ ".$skip" = .yes ]; then
                    if [ ".$opt_v" = .yes ]; then
                        echo "file \`$file' -- skipped" 1>&2
                    fi
                    continue
                fi
            fi
    
            #   apply sed(1) operation(s)
            if [ ".$opt_v" = .yes ]; then
                echo "patching \`$file'" 1>&2
            fi
            if [ ".$opt_t" = .yes ]; then
                echo "\$ cp -p $file $file$orig"
                echo "\$ $sedcmd <$file$orig >$file"
            fi
            if [ ".$opt_n" = .no ]; then
                cp -p $file $file$orig
                eval "$sedcmd <$file$orig >$file"
            fi
    
            #   optionally fix timestamp
            if [ ".$opt_s" = .yes ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "\$ touch -r $file$orig $file"
                fi
                if [ ".$opt_n" = .no ]; then
                    touch -r $file$orig $file
                fi
            fi
    
            #   optionally remove preserved original file
            if [ ".$opt_b" = . ]; then
                if [ ".$opt_t" = .yes ]; then
                    echo "\$ rm -f $file$orig"
                fi
                if [ ".$opt_n" = .no ]; then
                    rm -f $file$orig
                fi
            fi
        done
    else
        #   apply operation(s) to stdin/stdout
        if [ ".$opt_v" = .yes ]; then
            echo "patching <stdin>" 1>&2
        fi
        if [ ".$opt_t" = .yes ]; then
            echo "\$ $sedcmd"
        fi
        if [ ".$opt_n" = .no ]; then
            eval "$sedcmd"
        fi
    fi
    ;;

guessos )
    ##
    ##  guessos -- Simple operating system guesser
    ##  Copyright (c) 1996-1999 The Apache Group, http://www.apache.org/
    ##  The Apache license applies (see http://www.apache.org/docs/LICENSE)
    ##  Originally written for Apache
    ##
    
    MACHINE=`(uname -m) 2>/dev/null` || MACHINE=`(uname -p) 2>/dev/null` || MACHINE="unknown"
    RELEASE=`(uname -r) 2>/dev/null` || RELEASE="unknown"
     SYSTEM=`(uname -s) 2>/dev/null` ||  SYSTEM="unknown"
    VERSION=`(uname -v) 2>/dev/null` || VERSION="unknown"
    
    XREL=`(uname -X) 2>/dev/null | grep "^Release" | awk '{print $3}'`
    if [ "x$XREL" != "x" ]; then
        if [ -f /etc/kconfig ]; then
            case "$XREL" in
                4.0|4.1) echo "${MACHINE}-whatever-isc4"; exit 0 ;;
            esac
        else
        case "$XREL" in
            3.2v4.2)
                echo "whatever-whatever-sco3"; exit 0
                ;;
            3.2v5.0*)
                echo "whatever-whatever-sco5"; exit 0
                ;;
            4.2MP)
                if [ "x$VERSION" = "x2.1.1" ]; then
                    echo "${MACHINE}-whatever-unixware211"; exit 0
                elif [ "x$VERSION" = "x2.1.2" ]; then
                    echo "${MACHINE}-whatever-unixware212"; exit 0
                else
                    echo "${MACHINE}-whatever-unixware2"; exit 0
                fi
                ;;
            4.2)
                echo "whatever-whatever-unixware1"; exit 0
                ;;
            5)
                case "$VERSION" in
                    7*) echo "${MACHINE}-whatever-unixware7"; exit 0 ;;
                esac
                ;;
        esac
        fi
    fi
    case "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}" in
        MiNT:*)
            echo "m68k-atari-mint"; exit 0
            ;;
        A/UX:*)
            echo "m68k-apple-aux3"; exit 0
            ;;
        AIX:*)
            MACH=`echo $MACHINE | sed -e 's;[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F];;'`
            echo "${MACH}-ibm-aix${VERSION}.${RELEASE}"; exit 0
            ;;
        dgux:*)
            echo "${MACHINE}-dg-dgux"; exit 0
            ;;
        HI-UX:*)
            echo "${MACHINE}-hi-hiux"; exit 0
            ;;
        HP-UX:*)
            HPUXVER=`echo ${RELEASE}|sed -e 's/[^.]*.[0B]*//'`
            MACHINE=`echo ${MACHINE}|sed -e 's:/:_:'`
            echo "${MACHINE}-hp-hpux${HPUXVER}"; exit 0
            ;;
        IRIX:*)
            if [ -f /usr/lib32/mips4/libm.so ]; then
                echo "${MACHINE}/32-sgi-irix${RELEASE}"; exit 0
            else
                echo "${MACHINE}-sgi-irix${RELEASE}"; exit 0
            fi
            ;;
        IRIX64:*)
            echo "${MACHINE}/64-sgi-irix${RELEASE}"; exit 0
            ;;
        Linux:*)
            V='whatever'
            case "$MACHINE" in
                i?86) V='pc' ;;
            esac
            R=''
            case "$RELEASE" in
                [1-9].*) R=`echo $RELEASE | cut -c1` ;;
            esac
            echo "${MACHINE}-${V}-linux-gnu${R}"; exit 0
            ;;
        LynxOS:*)
            echo "${MACHINE}-lynx-lynxos"; exit 0
            ;;
        BSD/386|BSD/OS:3.*)
            echo "${MACHINE}-whatever-bsdi3"; exit 0
            ;;
        BSD/386:*:*:*486*|BSD/OS:*:*:*:*486*)
            echo "i486-whatever-bsdi"; exit 0
            ;;
        BSD/386:*|BSD/OS:*)
            echo "${MACHINE}-whatever-bsdi"; exit 0
            ;;
        FreeBSD:*)
            VERS=`echo ${RELEASE} | sed -e 's/[-(].*//'`
            MACH=`/sbin/sysctl -n hw.model`
            ARCH='whatever'
            case ${MACH} in
               *386*       ) MACH="i386"     ;;
               *486*       ) MACH="i486"     ;;
               Pentium\ II*) MACH="i686"     ;;
               Pentium*    ) MACH="i586"     ;;
               Alpha*      ) MACH="alpha"    ;;
               *           ) MACH="$MACHINE" ;;
            esac
            case ${MACH} in
               i[0-9]86 ) ARCH="pc" ;;
            esac
            echo "${MACH}-${ARCH}-freebsd${VERS}"; exit 0
            ;;
        NetBSD:*:*:*486*)
            echo "i486-whatever-netbsd${RELEASE}"; exit 0
            ;;
        NetBSD:*)
            echo "${MACHINE}-whatever-netbsd${RELEASE}"; exit 0
            ;;
        OpenBSD:*)
            echo "${MACHINE}-whatever-openbsd"; exit 0
            ;;
        OSF1:*:*:*alpha*)
            VERS=`echo $RELEASE | sed -e 's;^V;;'`
            echo "${MACHINE}-dec-osf${VERS}"; exit 0
            ;;
        QNX:*)
            if [ "$VERSION" -gt 422 ]; then
                echo "${MACHINE}-qssl-qnx32"
            else
                echo "${MACHINE}-qssl-qnx"
            fi
            exit 0
            ;;
        Paragon*:*:*:*)
            echo "i860-intel-osf1"; exit 0
            ;;
        SunOS:5.*)
            VERSION=`echo $RELEASE | sed -e 's;^5\.;;'`
            echo "${MACHINE}-sun-solaris2.${VERSION}"; exit 0
            ;;
        SunOS:*)
            echo "${MACHINE}-sun-sunos4"; exit 0
            ;;
        UNIX_System_V:4.*:*)
            echo "${MACHINE}-whatever-sysv4"; exit 0
            ;;
        unix:3.0.9*:*:88k)
            echo "${MACHINE}-encore-sysv4"; exit 0
            ;;
        *:4*:R4*:m88k)
            echo "${MACHINE}-whatever-sysv4"; exit 0
            ;;
        UnixWare:5:99*:*)
            # Gemini, beta release of next rev of unixware
            echo "${MACHINE}-whatever-unixware212"; exit 0
            ;;
        DYNIX/ptx:4*:*)
            echo "${MACHINE}-whatever-sysv4"; exit 0
            ;;
        *:4.0:3.0:[345][0-9]?? | *:4.0:3.0:3[34]??[/,]* | library:*)
            echo "x86-ncr-sysv4"; exit 0
            ;;
        ULTRIX:*)
            echo "${MACHINE}-unknown-ultrix"; exit 0
            ;;
        SINIX-?:* | ReliantUNIX-?:*)
            echo "${MACHINE}-siemens-sysv4"; exit 0
            ;;
        POSIX*BS2000)
            echo "${MACHINE}-siemens-sysv4"; exit 0
            ;;
        machten:*)
           echo "${MACHINE}-tenon-${SYSTEM}"; exit 0;
           ;;
        ConvexOS:*:11.*:*)
           echo "${MACHINE}-v11-${SYSTEM}"; exit 0;
           ;;
        UNIX_SV:*:*:maxion)
           echo "${MACHINE}-ccur-sysv4"; exit 0;
           ;;
        PowerMAX_OS:*:*:Night_Hawk)
           MACHINE=`uname -p`
           echo "${MACHINE}-concurrent-powermax"; exit 0;
           ;;
        UNIX_SV:*)
           if [ -d /usr/nec ];then
               echo "mips-nec-sysv4"; exit 0;
           fi
           ;;
        NonStop-UX:4.[02]*:[BC]*:*)
           echo "${MACHINE}-tandem-sysv4"; exit 0;
           ;;
        Rhapsody:*:*:*)
           case "${MACHINE}" in
               "Power Macintosh") MACHINE=powerpc ;;
           esac
           echo "${MACHINE}-apple-rhapsody${RELEASE}"; exit 0
           ;;
        Darwin:*:*:*)
           MACHINE=`uname -p`
           echo "${MACHINE}-apple-darwin${RELEASE}"; exit 0
           ;;
        "Mac OS":*:*:*)
           MACHINE=`uname -p`
           echo "${MACHINE}-apple-macos${RELEASE}"; exit 0
           ;;
        "RISC iX":*)
           echo "arm-whatever-riscix"; exit 0;
           ;;
        *:4.0:2:*)
           echo "whatever-unisys-sysv4"; exit 0;
           ;;
        *:*:dcosx:NILE*)
           echo "pyramid-pyramid-svr4"; exit 0;
           ;;
        *:*:*:"DRS 6000")
           echo "drs6000-whatever-whatever"; exit 0;
           ;;
        AmigaOS:*:*:* )
           echo "${MACHINE}-whatever-${SYSTEM}${RELEASE}"; exit 0
           ;;
    esac
    
    # Now NeXT
    ISNEXT=`(hostinfo) 2>/dev/null`
    case "$ISNEXT" in
        *NeXT*)
             # Swiped from a friendly uname clone for NEXT/OPEN Step.
             NEXTOSVER="`hostinfo | sed -n 's/.*NeXT Mach \([0-9\.]*\).*/\1/p'`"
             if [ "$NEXTOSVER" -gt 3.3 ]; then
                 NEXTOS="openstep"
             else
                 NEXTOS="nextstep"
             fi
             NEXTREL="`hostinfo | sed -n 's/.*NeXT Mach \([0-9\.]*\).*/\1/p'`"
             NEXTARCH=`arch`
             echo "${NEXTARCH}-next-${NEXTOS}${NEXTREL}" ; exit 0
             ;;
    esac
    
    # Fallback
    echo "${MACHINE}-unknown-${SYSTEM}/${RELEASE}/${VERSION}"
    ;;

arx )
    ##
    ##  arx -- Extended archive command
    ##  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for shtool
    ##
    
    ar_prg="$opt_C"
    ar_cmd="$1"; shift
    archive="$1"; shift
    files="$*"
    
    #   walk through the file list and expand archives members
    tmpdir=`echo $archive | sed -e 's;[^/]*$;.arx;'`
    nfiles=''
    if [ ".$files" != . ]; then
        for file in $files; do
            if [ ! -f $file ]; then
                echo "$msgprefix:Error: input file not found: $file" 1>&2
                exit 1
            fi
            case $file in
                *.a )
                    if [ ! -d $tmpdir ]; then
                        if [ ".$opt_t" = .yes ]; then
                            echo "mkdir $tmpdir" 1>&2
                        fi
                        mkdir $tmpdir
                    fi
                    case $tmpdir in
                         .arx )
                             from="../$file"
                             ;;
                         * )
                             dir=`echo $file | sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;' -e 's;^$;.;'`
                             base=`echo $file | sed -e 's;.*/\([^/]*\)$;\1;'`
                             from="`cd $dir; pwd`/$base"
                             ;;
                    esac
                    if [ ".$opt_t" = .yes ]; then
                        echo "(cd $tmpdir && $ar_prg x $from)" 1>&2
                    fi
                    (cd $tmpdir && eval $ar_prg x $from)
                    if [ $? -ne 0 ]; then
                        echo "$msgprefix:Error: member extraction failed for archive: $file" 1>&2
                        exit 1
                    fi
                    for member in - `eval $ar_prg t $file | sed -e '/_\.SYMDEF/d'`; do
                        [ ".$member" = .- ] && continue
                        nfiles="$nfiles $tmpdir/$member"
                    done
                    ;;
                * )
                    nfiles="$nfiles $file"
                    ;;
            esac
        done
    fi
    
    #   run the final archive command
    if [ ".$opt_t" = .yes ]; then
        echo "$ar_prg $ar_cmd $archive $nfiles" 1>&2
    fi
    eval $ar_prg $ar_cmd $archive $nfiles
    if [ $? -ne 0 ]; then
        echo "$msgprefix:Error: archive command failed" 1>&2
        exit $?
    fi
    
    #   cleanup and die gracefully
    if [ -d $tmpdir ]; then
        if [ ".$opt_t" = .yes ]; then
            echo "rm -rf $tmpdir" 1>&2
        fi
        rm -rf $tmpdir
    fi
    ;;

slo )
    ##
    ##  slo -- Separate linker options by library class
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for Apache
    ##
    
    DIFS="$IFS"
    
    #   parse out -L and -l options from command line
    DIRS=''
    LIBS=''
    ARGV=''
    optprev=''
    for opt
    do
        #   concatenate with previous option if exists
        if [ ".$optprev" != . ]; then
            opt="${optprev}${opt}";
            optprev=''
        fi
        #   remember options for arg if used stand-alone
        if [ ".$opt" = ".-L" -o ".$opt" = ".-l" ]; then
            optprev="$opt"
            continue;
        fi
        #   split argument into option plus option argument
        arg="`echo $opt | cut -c3-`"
        opt="`echo $opt | cut -c1-2`"
        #   store into containers
        case $opt in
            -L) DIRS="$DIRS:$arg" ;;
            -l) LIBS="$LIBS:$arg" ;;
             *) ARGV="$ARGV $opt" ;;
        esac
    done
    
    #   set linker default directories
    DIRS_DEFAULT='/lib:/usr/lib'
    if [ ".$LD_LIBRARY_PATH" != . ]; then
        DIRS_DEFAULT="$DIRS_DEFAULT:$LD_LIBRARY_PATH"
    fi
    
    #   sort options by class
    DIRS_OBJ=''
    LIBS_OBJ=''
    DIRS_PIC=''
    LIBS_PIC=''
    DIRS_DSO=''
    LIBS_DSO=''
    
    #    for each library...
    OIFS="$IFS"; IFS=':'
    for lib in $LIBS; do
        [ ".$lib" = . ] && continue
    
        found='no'
        found_indefdir='no'
        found_type=''
        found_dir=''
    
        #    for each directory...
        OIFS2="$IFS"; IFS=":$DIFS"
        for dir in ${DIRS} switch-to-defdirs ${DIRS_DEFAULT}; do
            [ ".$dir" = . ] && continue
            [ ".$dir" = .switch-to-defdirs ] && found_indefdir=yes
            [ ! -d $dir ] && continue
    
            #    search the file
            OIFS3="$IFS"; IFS="$DIFS"
            for file in '' `cd $dir && ls lib${lib}.* 2>/dev/null`; do
                 [ ".$file" = . ] && continue
                 case $file in
                     *.so|*.so.[0-9]*|*.sl|*.sl.[0-9]* )
                          found=yes;
                          found_type=DSO;
                          break
                          ;;
                     *.lo|*.la )
                          found=yes;
                          found_type=PIC
                          ;;
                     *.a )
                          if [ ".$found_type" = . ]; then
                              found=yes
                              found_type=OBJ
                          fi
                          ;;
                 esac
            done
            IFS="$OIFS3"
            if [ ".$found" = .yes ]; then
                found_dir="$dir"
                break
            fi
        done
        IFS="$OIFS2"
    
        if [ ".$found" = .yes ]; then
            if [ ".$found_indefdir" != .yes ]; then
                eval "dirlist=\"\${DIRS_${found_type}}:\""
                if [ ".`echo \"$dirlist\" | fgrep :$found_dir:`" = . ]; then
                    eval "DIRS_${found_type}=\"\$DIRS_${found_type}:${found_dir}\""
                fi
                eval "LIBS_${found_type}=\"\$LIBS_${found_type}:$lib\""
            else
                eval "LIBS_${found_type}=\"\$LIBS_${found_type}:$lib\""
            fi
        else
            LIBS_OBJ="$LIBS_OBJ:$lib"
            #dirlist="`echo $DIRS $DIRS_DEFAULT | sed -e 's/:/ /g'`"
            #echo "slo:Warning: library \"$lib\" not found in any of the following dirs:" 2>&1
            #echo "slo:Warning: $dirlist" 1>&1
        fi
    done
    IFS="$OIFS"
    
    #   also pass-through unused dirs even if it's useless
    OIFS="$IFS"; IFS=':'
    for dir in $DIRS; do
        dirlist="${DIRS_OBJ}:${DIRS_PIC}:${DIRS_DSO}:"
        if [ ".`echo \"$dirlist\" | fgrep :$dir:`" = . ]; then
            DIRS_OBJ="$DIRS_OBJ:$dir"
        fi
    done
    IFS="$OIFS"
    
    #   reassemble the options but separated by type
    for type in OBJ PIC DSO; do
        OIFS="$IFS"; IFS=':'
        eval "libs=\"\$LIBS_${type}\""
        opts=''
        for lib in $libs; do
            [ ".$lib" = . ] && continue
            opts="$opts -l$lib"
        done
        eval "LIBS_${type}=\"$opts\""
    
        eval "dirs=\"\$DIRS_${type}\""
        opts=''
        for dir in $dirs; do
            [ ".$dir" = . ] && continue
            opts="$opts -L$dir"
        done
        eval "DIRS_${type}=\"$opts\""
        IFS="$OIFS"
    done
    
    #   give back results
    for var in ARGV DIRS_OBJ LIBS_OBJ DIRS_PIC LIBS_PIC DIRS_DSO LIBS_DSO; do
        eval "val=\"\$${var}\""
        val="`echo $val | sed -e 's/^ *//'`"
        echo "${opt_p}${var}=\"${val}\""
    done
    ;;

scpp )
    ##
    ##  scpp -- Sharing C Pre-Processor
    ##  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for GNU Pth
    ##
    
    srcs="$*"
    output="${opt_o}.n"
    
    #   find a reasonable Awk
    awk=''
    paths=`echo $PATH |\
           sed -e 's%/*:%:%g' -e 's%/$%%' \
               -e 's/^:/.:/' -e 's/::/:.:/g' -e 's/:$/:./' \
               -e 's/:/ /g'`
    for name in gawk nawk awk; do
        for path in $paths; do
            if [ -r "$path/$name" ]; then
                awk="$path/$name"
                break
            fi
        done
        if [ ".$awk" != . ]; then
            break
        fi
    done
    if [ ".$awk" = . ]; then
        echo "$msgprefix:Error: cannot find a reasonable Awk" 1>&2
        exit 1
    fi
    
    #   parse source file(s)
    if [ ".$opt_v" = .yes ]; then
        echo "Parsing:" | $awk '{ printf("%s", $0); }' 1>&2
    fi
    for src in $srcs; do
        if [ ".$opt_v" = .yes ]; then
            echo $src | $awk '{ printf(" %s", $0); }' 1>&2
        fi
        if [ ".$opt_f" != . ]; then
            inputcmd="sed"
            OIFS="$IFS"; IFS="$ASC_NL"; set -- $opt_f; IFS="$OIFS"
            for e
            do
                inputcmd="$inputcmd -e '$e'"
            done
            inputcmd="$inputcmd $src"
        else
            inputcmd="cat $src"
        fi
        $inputcmd |\
        $awk '
           BEGIN {
               ln    = 0;
               fln   = 0;
               level = 0;
               mode  = "";
               store = "";
           }
           {
               ln++;
           }
           /^#if.*/ {
               level++;
           }
           /^#if [a-zA-Z_][a-zA-Z0-9_]* *$/ {
               if ($2 == define) {
                   mode = "D";
                   printf("D:#line %d \"%s\"\n", ln, src);
                   next;
               }
           }
           /^#endif.*/ {
               level--;
               if (mode == "D" && level == 0) {
                   mode = "";
                   next;
               }
           }
           /^[a-zA-Z_][a-zA-Z0-9_].*;.*/ {
               if ($1 == class) {
                   printf("V:#line %d \"%s\"\n", ln, src);
                   printf("V:%s\n", $0);
                   printf("J:%s\n", $0);
                   next;
               }
           }
           /^[a-zA-Z_][a-zA-Z0-9_].*=.*/ {
               if ($1 == class) {
                   printf("V:#line %d \"%s\"\n", ln, src);
                   printf("V:%s\n", $0);
                   printf("J:%s\n", $0);
                   next;
               }
           }
           /^[a-zA-Z_][a-zA-Z0-9_]*/ {
               if ($1 == class) {
                   fln = ln;
                   store = $0;
                   mode = "F";
                   next;
               }
           }
           /^\{ *$/ {
               if (mode == "F") {
                   printf("F:#line %d \"%s\"\n", fln, src);
                   printf("F:%s;\n", store);
                   printf("I:%s;\n", store);
                   store = "";
                   mode = "";
                   next;
               }
           }
           {
               if (mode == "D")
                   printf("D:%s\n", $0);
               else if (mode == "F")
                   store = store " " $0;
           }
        ' "src=$src" "define=$opt_D" "class=$opt_C" >>$tmpfile
    done
    if [ ".$opt_v" = .yes ]; then
        echo "" 1>&2
    fi
    
    #   start generating output header
    echo "/* $opt_o -- autogenerated from $opt_t, DO NOT EDIT! */" >$output
    echo "#line 1 \"$opt_t\"" >>$output
    sed <$opt_t -e "1,/^${opt_M} *\$/p" -e 'd' |\
    sed -e "/^${opt_M} *\$/d" >>$output
    
    #   merge in the define blocks
    grep '^D:' $tmpfile | sed -e 's/^D://' >>$output
    
    #   generate standard prolog
    echo "#line 1 \"_ON_THE_FLY_\"" >>$output
    echo "" >>$output
    echo "/* make sure the scpp source extensions are skipped */" >>$output
    echo "#define $opt_D 0" >>$output
    echo "#define $opt_C /**/" >>$output
    
    #   generate namespace hiding for variables
    echo "" >>$output
    echo "/* move intern variables to hidden namespace */" >>$output
    grep '^J:' $tmpfile | sed >>$output \
        -e 's/^J://' \
        -e 's/  */ /g' \
        -e 's/^[^=;]*[ *]\([a-zA-Z0-9_]*\)\[\];.*$/#define \1 __\1/' \
        -e 's/^[^=;]*[ *]\([a-zA-Z0-9_]*\)\[\] =.*$/#define \1 __\1/' \
        -e 's/^[^=;]*[ *]\([a-zA-Z0-9_]*\);.*$/#define \1 __\1/' \
        -e 's/^[^=;]*[ *]\([a-zA-Z0-9_]*\) =.*$/#define \1 __\1/'
    
    #   generate namespace hiding for functions
    echo "" >>$output
    echo "/* move intern functions to hidden namespace */" >>$output
    grep '^I:' $tmpfile | sed >>$output \
        -e 's/^I://' \
        -e 's/\([ (]\) */\1/g' \
        -e 's/ *\([),]\)/\1/g' \
        -e 's/^[^(]*[ *]\([a-zA-Z0-9_]*\)(.*$/#define \1 __\1/'
    
    #   generate prototypes for variables
    echo "" >>$output
    echo "/* prototypes for intern variables */" >>$output
    grep '^V:' $tmpfile | sed >>$output \
        -e 's/^V://' \
        -e 's/  */ /g' \
        -e 's/^\([^=;]*[ *][a-zA-Z0-9_]*\[\]\);.*$/\1;/' \
        -e 's/^\([^=;]*[ *][a-zA-Z0-9_]*\[\]\) =.*$/\1;/' \
        -e 's/^\([^=;]*[ *][a-zA-Z0-9_]*\);.*$/\1;/' \
        -e 's/^\([^=;]*[ *][a-zA-Z0-9_]*\) =.*$/\1;/' \
        -e 's/ ;/;/g' \
        -e "s/^$opt_C /extern /"
    
    #   generate prototypes for functions
    echo "" >>$output
    echo "/* prototypes for intern functions */" >>$output
    grep '^F:' $tmpfile | sed >>$output \
        -e 's/^F://' \
        -e 's/\([ (]\) */\1/g' \
        -e 's/ *\([),]\)/\1/g' \
        -e 's/\([* ]\)[a-zA-Z0-9_]*,/\1,/g' \
        -e 's/\([* ]\)[a-zA-Z0-9_]*);/\1);/g' \
        -e 's/(\*[a-zA-Z0-9_]*)(/(*)(/g' \
        -e 's/\([ (]\) */\1/g' \
        -e 's/ *\([),]\)/\1/g' \
        -e "s/^$opt_C /extern /"
    
    #   finish generating output header
    n=`(echo ''; sed <$opt_t -e "1,/^${opt_M} *\$/p" -e 'd') |\
       wc -l | sed -e 's;^ *\([0-9]*\) *$;\1;'`
    echo "#line $n \"$opt_t\"" >>$output
    sed <$opt_t -e "/^${opt_M} *\$/,\$p" -e 'd' |\
    sed -e "/^${opt_M} *\$/d" >>$output
    
    #   create final output file
    if [ -f $opt_o ]; then
        if [ ".$opt_p" = .yes ]; then
            grep -v '^#line' $opt_o  >$tmpfile.o
            grep -v '^#line' $output >$tmpfile.n
            out_old="$tmpfile.o"
            out_new="$tmpfile.n"
        else
            out_old="$opt_o"
            out_new="$output"
        fi
        if cmp -s $out_old $out_new; then
            :
        else
            cp $output $opt_o
        fi
    else
        cp $output $opt_o
    fi
    rm -f $output
    rm -f $tmpfile $tmpfile.* >/dev/null 2>&1
    ;;

version )
    ##
    ##  version -- Maintain a version information file
    ##  Copyright (c) 1994-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for ePerl, rewritten from scratch for shtool
    ##
    
    file="$1"
    
    #   determine prefix and name
    name="$opt_n"
    prefix="$opt_p"
    
    #   determine current version
    triple="$opt_s"
    if [ ".$triple" != . ]; then
        #   use given triple
        if [ ".`echo $triple | grep '[0-9]*.[0-9]*[sabp.][0-9]*'`" = . ]; then
            echo "$msgprefix:Error: invalid argument to option \`-s': \`$opt_s'" 1>&2
            exit 1
        fi
        eval `echo $triple |\
              sed -e 's%\([0-9]*\)\.\([0-9]*\)\([sabp.]\)\([0-9]*\).*%\
              ver="\1";rev="\2";typ="\3";lev="\4"%'`
        tim=calc
    elif [ -r $file ]; then
        #   determine triple from given file
        eval `grep 'Version [0-9]*.[0-9]*[sabp.][0-9]* ([0-9]*-[a-zA-Z]*-[0-9]*)' $file |\
              head -1 | sed -e 's%.*Version \([0-9]*\)\.\([0-9]*\)\([sabp.]\)\([0-9]*\) (\([0-9]*-[a-zA-Z]*-[0-9]*\)).*%\
              ver="\1";rev="\2";typ="\3";lev="\4";tim="\5"%'`
    else
        #   intialise to first version
        ver=0
        rev=1
        typ=.
        lev=0
        tim=calc
    fi
    
    #   determine new version in batch
    if [ ".$opt_i" != . ]; then
        case $opt_i in
            v ) ver=`expr $ver + 1`
                rev=0
                lev=0
                ;;
            r ) rev=`expr $rev + 1`
                lev=0
                ;;
            l ) lev=`expr $lev + 1`
                ;;
            * ) echo "$msgprefix:Error: invalid argument to option \`-i': \`$opt_i'" 1>&2
                exit 1
                ;;
        esac
        tim=calc
    fi
    
    #   determine new version interactively
    if [ ".$opt_e" = .yes ]; then
        echo "old version: ${ver}.${rev}${typ}${lev}"
        while [ 1 ]; do
            echo dummy | awk '{ printf("new version: "); }'
            read triple
            case $triple in
                [0-9]*.[0-9]*[sabp.][0-9]* )
                    ;;
                * ) echo "$msgprefix:Error: invalid version string entered: \`$triple'" 1>&2
                    continue
                    ;;
            esac
            break
        done
        eval `echo $triple |\
              sed -e 's%^\([0-9]*\)\.\([0-9]*\)\([sabp.]\)\([0-9]*\)$%\
              ver="\1";rev="\2";typ="\3";lev="\4"%'`
        tim=calc
    fi
    
    #   determine hexadecimal and libtool value of version
    case $typ in
        a     ) typnum=0;  levnum=$lev ;;
        b     ) typnum=1;  levnum=$lev ;;
        p | . ) typnum=2;  levnum=$lev ;;
        s     ) typnum=15; levnum=255  ;; # snapshots are special
    esac
    hex=`echo "$ver:$rev:$typnum:$levnum" |\
         awk -F: '{ printf("0x%x%02x%1x%02x", $1, $2, $3, $4); }' |\
         tr 'abcdef' 'ABCDEF'`
    ltv=`echo "$ver:$rev:$typnum:$levnum" |\
         awk -F: '{ printf("%d:%d", $1*10 + $2, $3*10 + $4); }'`
    
    #   determine date
    if [ ".$tim" = .calc ]; then
        day=`date '+%d'`
        month=`date '+%m'`
        year=`date '+%Y' 2>/dev/null`
        if [ ".$time_year" = . ]; then
            year=`date '+%y'`
            case $year in
                [5-9][0-9]) year="19$year" ;;
                [0-4][0-9]) year="20$year" ;;
            esac
        fi
        case $month in
            1|01) month='Jan' ;;
            2|02) month='Feb' ;;
            3|03) month='Mar' ;;
            4|04) month='Apr' ;;
            5|05) month='May' ;;
            6|06) month='Jun' ;;
            7|07) month='Jul' ;;
            8|08) month='Aug' ;;
            9|09) month='Sep' ;;
              10) month='Oct' ;;
              11) month='Nov' ;;
              12) month='Dec' ;;
        esac
        tim="${day}-${month}-${year}"
    fi
    
    #   perform result actions
    mode=show
    if [ ".$opt_i" != . ]; then
        mode=edit
    elif [ ".$opt_e" = .yes ]; then
        mode=edit
    elif [ ".$opt_s" != . ]; then
        mode=edit
    fi
    if [ ".$mode" = .show ]; then
        #   just display the current version
        case $opt_d in
            short )
                echo "${ver}.${rev}${typ}${lev}"
                ;;
            long )
                echo "${ver}.${rev}${typ}${lev} ($tim)"
                ;;
            libtool )
                echo "${ltv}"
                ;;
            hex )
                echo "${hex}"
                ;;
            * ) echo "$msgprefix:Error: invalid argument to option \`-d': \`$opt_d'" 1>&2
                exit 1
                ;;
        esac
    else
        #   update the version file
    
        #   pre-generate various strings
        triple="${ver}.${rev}${typ}${lev}"
        vHex="$hex"
        vShort="${triple}"
        vLong="${triple} (${tim})"
        vTeX="This is ${name}, Version ${triple} (${tim})"
        vGNU="${name} ${triple} (${tim})"
        vWeb="${name}/${triple}"
        vSCCS="@(#)${name} ${triple} (${tim})"
        vRCS="\$Id: ${name} ${triple} (${tim}) \$"
    
        #   determine string out of filename
        #   (do NOT try to optimize this in any way because of portability)
        filestr=`echo $file |\
                 tr 'abcdefghijklmnopqrstuvwxyz./%+' \
                    'ABCDEFGHIJKLMNOPQRSTUVWXYZ____' | sed -e 's/-/_/g'`
    
        #   generate uppercase prefix
        prefixupper=`echo $prefix |\
                     tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
    
        #   create the version file according the the selected language
        echo "new version: ${vLong}"
    
        cp /dev/null $file
        case $opt_l in
            txt )
                echo >>$file ""
                echo >>$file "  ${file} -- Version Information for ${name} (syntax: Text)"
                echo >>$file "  [automatically generated and maintained by GNU shtool]"
                echo >>$file ""
                echo >>$file "  $vTeX"
                echo >>$file ""
                ;;
            c )
                echo >>$file "/*"
                echo >>$file "**  ${file} -- Version Information for ${name} (syntax: C/C++)"
                echo >>$file "**  [automatically generated and maintained by GNU shtool]"
                echo >>$file "*/"
                echo >>$file ""
                echo >>$file "#ifdef _${filestr}_AS_HEADER_"
                echo >>$file ""
                echo >>$file "#ifndef _${filestr}_"
                echo >>$file "#define _${filestr}_"
                echo >>$file ""
                echo >>$file "#define ${prefixupper}VERSION ${vHex}"
                echo >>$file ""
                echo >>$file "typedef struct {"
                echo >>$file "    const int   v_hex;"
                echo >>$file "    const char *v_short;"
                echo >>$file "    const char *v_long;"
                echo >>$file "    const char *v_tex;"
                echo >>$file "    const char *v_gnu;"
                echo >>$file "    const char *v_web;"
                echo >>$file "    const char *v_sccs;"
                echo >>$file "    const char *v_rcs;"
                echo >>$file "} ${prefix}version_t;"
                echo >>$file ""
                echo >>$file "extern ${prefix}version_t ${prefix}version;"
                echo >>$file ""
                echo >>$file "#endif /* _${filestr}_ */"
                echo >>$file ""
                echo >>$file "#else /* _${filestr}_AS_HEADER_ */"
                echo >>$file ""
                echo >>$file "#define _${filestr}_AS_HEADER_"
                echo >>$file "#include \"${file}\""
                echo >>$file "#undef  _${filestr}_AS_HEADER_"
                echo >>$file ""
                echo >>$file "${prefix}version_t ${prefix}version = {"
                echo >>$file "    ${vHex},"
                echo >>$file "    \"${vShort}\","
                echo >>$file "    \"${vLong}\","
                echo >>$file "    \"${vTeX}\","
                echo >>$file "    \"${vGNU}\","
                echo >>$file "    \"${vWeb}\","
                echo >>$file "    \"${vSCCS}\","
                echo >>$file "    \"${vRCS}\""
                echo >>$file "};"
                echo >>$file ""
                echo >>$file "#endif /* _${filestr}_AS_HEADER_ */"
                echo >>$file ""
                ;;
            perl )
                echo >>$file "##"
                echo >>$file "##  ${file} -- Version Information for ${name} (syntax: Perl)"
                echo >>$file "##  [automatically generated and maintained by GNU shtool]"
                echo >>$file "##"
                echo >>$file ""
                echo >>$file "my \$${prefix}version = {"
                echo >>$file "    'v_hex'   => ${vHex},"
                echo >>$file "    'v_short' => \"${vShort}\","
                echo >>$file "    'v_long'  => \"${vLong}\","
                echo >>$file "    'v_tex'   => \"${vTeX}\","
                echo >>$file "    'v_gnu'   => \"${vGNU}\","
                echo >>$file "    'v_web'   => \"${vWeb}\","
                echo >>$file "    'v_sccs'  => \"${vSCCS}\","
                echo >>$file "    'v_rcs'   => \"\\${vRCS}/\""
                echo >>$file "};"
                echo >>$file ""
                echo >>$file "1;"
                echo >>$file ""
                ;;
            python )
                echo >>$file "##"
                echo >>$file "##  ${file} -- Version Information for ${name} (syntax: Python)"
                echo >>$file "##  [automatically generated and maintained by GNU shtool]"
                echo >>$file "##"
                echo >>$file ""
                echo >>$file "class ${prefix}version:"
                echo >>$file "    v_hex       = ${vHex}"
                echo >>$file "    v_short     = \"${vShort}\""
                echo >>$file "    v_long      = \"${vLong}\""
                echo >>$file "    v_tex       = \"${vTeX}\""
                echo >>$file "    v_gnu       = \"${vGNU}\""
                echo >>$file "    v_web       = \"${vWeb}\""
                echo >>$file "    v_sccs      = \"${vSCCS}\""
                echo >>$file "    v_rcs       = \"${vRCS}\""
                echo >>$file ""
                ;;
            * ) echo "$msgprefix:Error: invalid argument to option \`-l': \`$opt_l'" 1>&2
                exit 1
                ;;
        esac
    fi
    ;;

path )
    ##
    ##  path -- Deal with program paths
    ##  Copyright (c) 1998-2002 Ralf S. Engelschall <rse@engelschall.com>
    ##  Originally written for Apache
    ##
    
    namelist="$*"
    
    #   check whether the test command supports the -x option
    if [ -x /bin/sh ] 2>/dev/null; then
        minusx="-x"
    else
        minusx="-r"
    fi
    
    #   split path string
    paths="`echo $opt_p |\
            sed -e 's/^:/.:/' \
                -e 's/::/:.:/g' \
                -e 's/:$/:./' \
                -e 's/:/ /g'`"
    
    #   SPECIAL REQUEST
    #   translate forward to reverse path
    if [ ".$opt_r" = .yes ]; then
        if [ "x$namelist" = "x." ]; then
            rp='.'
        else
            rp=''
            for pe in `IFS="$IFS/"; echo $namelist`; do
                rp="../$rp"
            done
        fi
        echo $rp | sed -e 's:/$::'
        exit 0
    fi
    
    #   SPECIAL REQUEST
    #   strip out directory or base name
    if [ ".$opt_d" = .yes ]; then
        echo "$namelist" |\
        sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;'
        exit 0
    fi
    if [ ".$opt_b" = .yes ]; then
        echo "$namelist" |\
        sed -e 's;.*/\([^/]*\)$;\1;'
        exit 0
    fi
    
    #   MAGIC SITUATION
    #   Perl Interpreter (perl)
    if [ ".$opt_m" = .yes  -a ".$namelist" = .perl ]; then
        rm -f $tmpfile >/dev/null 2>&1
        touch $tmpfile
        found=0
        pc=99
        for dir in $paths; do
            dir=`echo $dir | sed -e 's;/*$;;'`
            nc=99
            for name in perl perl5 miniperl; do
                 if [ $minusx "$dir/$name" -a ! -d "$dir/$name" ]; then
                     perl="$dir/$name"
                     pv=`$perl -e 'printf("%.3f", $]);'`
                     echo "$pv:$pc:$nc:$perl" >>$tmpfile
                     found=1
                 fi
                 nc=`expr $nc - 1`
            done
            pc=`expr $pc - 1`
        done
        if [ $found = 1 ]; then
            perl="`cat $tmpfile | sort -u | tail -1 | cut -d: -f4`"
            rm -f $tmpfile >/dev/null 2>&1
            echo "$perl"
            exit 0
        fi
        rm -f $tmpfile >/dev/null 2>&1
        exit 1
    fi
    
    #   MAGIC SITUATION
    #   C pre-processor (cpp)
    if [ ".$opt_m" = .yes -a ".$namelist" = .cpp ]; then
        echo >$tmpfile.c "#include <assert.h>"
        echo >>$tmpfile.c "Syntax Error"
        #   1. try the standard cc -E approach
        cpp="${CC-cc} -E"
        (eval "$cpp $tmpfile.c >/dev/null") 2>$tmpfile.out
        my_error=`grep -v '^ *+' $tmpfile.out`
        if [ ".$my_error" != . ]; then
            #   2. try the cc -E approach and GCC's -traditional-ccp option
            cpp="${CC-cc} -E -traditional-cpp"
            (eval "$cpp $tmpfile.c >/dev/null") 2>$tmpfile.out
            my_error=`grep -v '^ *+' $tmpfile.out`
            if [ ".$my_error" != . ]; then
                #   3. try a standalone cpp command in path and lib dirs
                for path in $paths /lib /usr/lib /usr/local/lib; do
                    path=`echo $path | sed -e 's;/*$;;'`
                    if [ $minusx "$path/cpp" -a ! -d "$path/cpp" ]; then
                        cpp="$path/cpp"
                        break
                    fi
                done
                if [ ".$cpp" != . ]; then
                    (eval "$cpp $tmpfile.c >/dev/null") 2>$tmpfile.out
                    my_error=`grep -v '^ *+' $tmpfile.out`
                    if [ ".$my_error" != . ]; then
                        #   ok, we gave up...
                        cpp=''
                    fi
                fi
            fi
        fi
        rm -f $tmpfile >/dev/null 2>&1
        rm -f $tmpfile.c $tmpfile.out >/dev/null 2>&1
        if [ ".$cpp" != . ]; then
            echo "$cpp"
            exit 0
        fi
        exit 1
    fi
    
    #   STANDARD SITUATION
    #   iterate over names
    for name in $namelist; do
        #   iterate over paths
        for path in $paths; do
            path=`echo $path | sed -e 's;/*$;;'`
            if [ $minusx "$path/$name" -a ! -d "$path/$name" ]; then
                if [ ".$opt_s" != .yes ]; then
                    echo "$path/$name"
                fi
                exit 0
            fi
        done
    done
    exit 1
    ;;

esac

exit 0

##EOF##
