InfoMagic Internet Tools 1993 July/Internet Tools.iso/RockRidge/mail/elm/elm2.4/Configure

Text File | 1993-06-06 | 110.7 KB | 4,981 lines

#! /bin/sh
#
# If these # comments don't work, trim them.  Don't worry about any other
# shell scripts, Configure will trim # comments from them for you.
#
# (If you are trying to port this package to a machine without sh, I would
# suggest you cut out the prototypical config.h from the end of Configure
# and edit it to reflect your system.  Some packages may include samples
# of config.h for certain machines, so you might look for one of those.)
#
# $Header: /home/syd/elm.rel/RCS/Configure,v 5.28 1993/06/06 18:11:06 syd Exp $
#
# Yes, you may rip this off to use in other distribution packages.
# (Note: this Configure script was generated automatically.  Rather than
# working with this copy of Configure, you may wish to get metaconfig.)

: sanity checks
PATH=".:/bin:/usr/bin:/usr/local/bin:/usr/ucb:/usr/local:/usr/lbin:/etc:/usr/new:/usr/new/bin:/usr/nbin:$PATH"
export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0; kill $$)

if test ! -t 0; then
    echo "Say 'sh Configure', not 'sh <Configure'"
    exit 1
fi

(alias) >/dev/null 2>&1 && \
    echo "(I see you are using the Korn shell.  Some ksh's blow up on Configure," && \
    echo "especially on exotic machines.  If yours does, try the Bourne shell instead.)"

if test ! -d ../UU; then
    if test ! -d UU; then
    mkdir UU
    fi
    cd UU
fi

case "$1" in
-d) shift; fastread='yes';;
esac

Log=''
Header=''
bin=''
contains=''
cppstdin=''
cppminus=''
d_getopt=''
d_memcpy=''
d_mkdir=''
d_rename=''
d_symlink=''
d_whoami=''
n=''
c=''
orderlib=''
ranlib=''
package=''
pager=''
prefshell=''
startsh=''
d_eunice=''
define=''
eunicefix=''
loclist=''
expr=''
sed=''
echo=''
cat=''
rm=''
mv=''
cp=''
tail=''
tr=''
mkdir=''
sort=''
uniq=''
grep=''
trylist=''
test=''
inews=''
ispell=''
egrep=''
more=''
pg=''
Mcc=''
vi=''
mailx=''
mail=''
cpp=''
perl=''
emacs=''
ls=''
rmail=''
sendmail=''
shar=''
smail=''
submit=''
tbl=''
troff=''
nroff=''
uname=''
uuname=''
line=''
chgrp=''
chmod=''
lint=''
sleep=''
pr=''
tar=''
ln=''
lpr=''
lp=''
touch=''
make=''
date=''
csh=''
pmake=''
mips=''
col=''
pack=''
compress=''
execmail=''
libswanted=''
c_date=''
d_altcheck=''
d_ascii=''
d_calendar=''
calendar=''
d_content=''
d_crypt=''
cryptlib=''
d_cuserid=''
d_disphost=''
d_domname=''
d_usegetdom=''
d_errlst=''
d_flock=''
d_dotlock=''
d_fcntlock=''
lock_dir=''
has_flock=''
has_fcntl=''
d_ftruncate=''
d_gethname=''
d_douname=''
d_host_comp=''
ign_hname=''
d_havetlib=''
termlib=''
d_index=''
d_internet=''
d_ispell=''
ispell_path=''
ispell_options=''
d_locale=''
d_nl_types=''
d_msgcat=''
d_usenls=''
d_mallocvoid=''
d_mboxedit=''
d_mime=''
defencoding=''
defcharset=''
defdispcharset=''
d_mmdf=''
d_newauto=''
d_noaddfrom=''
d_usedomain=''
d_nocheckvalid=''
d_noxheader=''
d_pidcheck=''
d_ptem=''
d_putenv=''
d_remlock=''
maxattempts=''
d_setgid=''
d_savegrpmboxid=''
mailermode=''
d_sigvec=''
d_sigvectr=''
d_sigset=''
d_sighold=''
d_sigprocmask=''
d_sigblock=''
d_sigaction=''
d_strcspn=''
d_strspn=''
d_strpbrk=''
d_strerror=''
d_strftime=''
d_strings=''
d_pwdinsys=''
strings=''
includepath=''
d_strstr=''
d_strtok=''
d_subshell=''
d_tempnam=''
tempnamo=''
tempnamc=''
d_termio=''
d_termios=''
d_tz_min=''
d_tzname=''
d_useembed=''
d_utimbuf=''
d_vfork=''
defbatsub=''
defeditor=''
editoropts=''
hostname=''
phostname=''
mydomain=''
autohostname=''
i_memory=''
i_stdlib=''
i_time=''
i_systime=''
d_systimekernel=''
i_unistd=''
i_utime=''
i_sysutime=''
lib=''
libc=''
linepr=''
maildir=''
mailer=''
mailgrp=''
mansrc=''
catmansrc=''
manext=''
manext_choice=''
catmanext=''
catmanext_choice=''
packed=''
manroff=''
manroffopts=''
suffix=''
packer=''
models=''
split=''
small=''
medium=''
large=''
huge=''
optimize=''
ccflags=''
cppflags=''
ldflags=''
cc=''
libs=''
nametype=''
d_passnames=''
d_berknames=''
d_usgnames=''
passcat=''
rmttape=''
roff=''
roffopts=''
sigtype=''
spitshell=''
shsharp=''
sharpbang=''
tmpdir=''
use_pmake=''
xencf=''
xenlf=''
d_xenix=''
d_bsd=''
CONFIG=''
: set package name
package=elm2

echo " "
echo "Beginning of configuration questions for $package kit."
: Eunice requires " " instead of "", can you believe it
echo " "

define='define'
undef='undef'
: change the next line if compiling for Xenix/286 on Xenix/386
xlibpth='/usr/lib/386 /lib/386 /lib'
libpth='/usr/lib /usr/ccs/lib /usr/local/lib /usr/lib/large /lib '$xlibpth' /lib/large /usr/lib/small /lib/small'
smallmach='pdp11 i8086 z8000 i80286 iAPX286'
rmlist='kit[1-9]isdone kit[1-9][0-9]isdone'
trap 'echo " "; rm -f $rmlist; exit 1' 1 2 3

: We must find out about Eunice early
eunicefix=':'
if test -f /etc/unixtovms; then
    eunicefix=/etc/unixtovms
fi
if test -f /etc/unixtovms.exe; then
    eunicefix=/etc/unixtovms.exe
fi

: Now test for existence of everything in MANIFEST

echo "First let's make sure your kit is complete.  Checking..."
awk '$1 !~ /PACKINGLIST/ {print $1}' ../MANIFEST | split -100
rm -f missing
for filelist in x??; do
    (cd ..; ls `cat UU/$filelist` >/dev/null 2>>UU/missing)
done
if test -s missing; then
    cat missing
    kill $$
fi
echo "Looks good..."

: Do one time items.....

for file in OneTime.PL* ; do
    if test -f "$file" ; then
        echo "Executing patch cleanup script $file . . ."
        . ./$file
    fi
done
d_newshome="/usr/NeWS"
defvoidused=7
attrlist="mc68000 sun gcos unix ibm gimpel interdata tss os mert pyr"
attrlist="$attrlist vax pdp11 i8086 z8000 u3b2 u3b5 u3b20 u3b200"
attrlist="$attrlist hpux hp9000s300 hp9000s500 hp9000s800"
attrlist="$attrlist ns32000 ns16000 iAPX286 mc300 mc500 mc700 sparc"
attrlist="$attrlist nsc32000 sinix xenix venix posix ansi M_XENIX"
attrlist="$attrlist $mc68k __STDC__ UTS M_I8086 M_I186 M_I286 M_I386"
attrlist="$attrlist i186 __m88k__ m88k DGUX __DGUX__ NeXT _AIX ultrix"
pth="/bin /usr/bin /usr/ucb /sbin /usr/sbin /usr/local /usr/local/bin /usr/lbin"
pth="$pth /usr/5bin /vol/local/bin /etc /usr/bsd /usr/lib /usr/ccs/lib /usr/ccs/bin /lib"
pth="$pth /usr/local/lib /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/bin /bsd4.3/usr/ucb"
pth="$pth /usr/convex /usr/mmdf/bin /usr/mmdf/lib /usr/lib/mail"
pth="$pth ${BSDBASE-/bsd}/usr/ucb ${BSDBASE-/bsd}/bin ${BSDBASE-/bsd}/usr/bin"

: check for out bin directory
if test ! -d ../bin; then
    echo "Making bin directory"
    mkdir ../bin
else
    echo "Found bin directory"
fi

libswanted="intl nls"
attrlist="$attrlist sgi"

: some greps do not return status, grrr.
echo "grimblepritz" >grimble
if grep blurfldyick grimble >/dev/null 2>&1 ; then
    contains=contains
elif grep grimblepritz grimble >/dev/null 2>&1 ; then
    contains=grep
else
    contains=contains
fi
rm -f grimble
: the following should work in any shell
case "$contains" in
contains*)
    echo " "
    echo "AGH!  Grep doesn't return a status.  Attempting remedial action."
    cat >contains <<'EOSS'
grep "$1" "$2" >.greptmp && cat .greptmp && test -s .greptmp
EOSS
chmod +x contains
esac

: see if sh knows # comments
echo " "
echo "Checking your sh to see if it knows about # comments..."
if sh -c '#' >/dev/null 2>&1 ; then
    echo "Your sh handles # comments correctly."
    shsharp=true
    spitshell=cat
    echo " "
    echo "Okay, let's see if #! works on this system..."
    e=/bin/echo; test -f $e || e=/usr/bin/echo
    echo "#!$e hi" > try
    $eunicefix try
    chmod +x try
    ./try > today
    if $contains hi today >/dev/null 2>&1; then
    echo "It does."
    sharpbang='#!'
    else
    echo "#! $e hi" > try
    $eunicefix try
    chmod +x try
    ./try > today
    if test -s today; then
        echo "It does."
        sharpbang='#! '
    else
        echo "It doesn't."
        sharpbang=': use '
    fi
    fi
else
    echo "Your sh doesn't grok # comments--I will strip them later on."
    shsharp=false
    echo "exec grep -v '^#'" >spitshell
    chmod +x spitshell
    $eunicefix spitshell
    spitshell=`pwd`/spitshell
    echo "I presume that if # doesn't work, #! won't work either!"
    sharpbang=': use '
fi

: figure out how to guarantee sh startup
echo " "
echo "Checking out how to guarantee sh startup..."
startsh=$sharpbang'/bin/sh'
echo "Let's see if '$startsh' works..."
cat >try <<EOSS
$startsh
set abc
test "$?abc" != 1
EOSS

chmod +x try
$eunicefix try
if ./try; then
    echo "Yup, it does."
else
    echo "Nope.  You may have to fix up the shell scripts to make sure sh runs them."
fi
rm -f try today

: first determine how to suppress newline on echo command
echo "Checking echo to see how to suppress newlines..."
(echo "hi there\c" ; echo " ") >.echotmp
if $contains c .echotmp >/dev/null 2>&1 ; then
    echo "...using -n."
    n='-n'
    c=''
else
    cat <<'EOM'
...using \c
EOM
    n=''
    c='\c'
fi
echo $n "Type carriage return to continue.  Your cursor should be here-->$c"
read ans
rm -f .echotmp

: now set up to do reads with possible shell escape and default assignment
cat <<EOSC >myread
case "\$fastread" in
yes) ans=''; echo " " ;;
*) ans='!';;
esac
while expr "X\$ans" : "X!" >/dev/null; do
    read ans
    case "\$ans" in
    !)
    sh
    echo " "
    echo $n "\$rp $c"
    ;;
    !*)
    set \`expr "X\$ans" : "X!\(.*\)\$"\`
    sh -c "\$*"
    echo " "
    echo $n "\$rp $c"
    ;;
    esac
done
rp='Your answer:'
case "\$ans" in
'') ans="\$dflt";;
esac
EOSC

: general instructions
cat <<EOH

This installation shell script will examine your system and ask you questions
to determine how the $package package should be installed.  If you get stuck
on a question, you may use a ! shell escape to start a subshell or execute
a command.  Many of the questions will have default answers in square
brackets--typing carriage return will give you the default.

On some of the questions which ask for file or directory names you are
allowed to use the ~name construct to specify the login directory belonging
to "name", even if you don't have a shell which knows about that.  Questions
where this is allowed will be marked "(~name ok)".

EOH
rp="[Type carriage return to continue]"
echo $n "$rp $c"
. myread
cat <<EOH

Much effort has been expended to ensure that this shell script will run
on any Unix system.  If despite that it blows up on you, your best bet is
to edit Configure and run it again. Also, let the Elm Development Group
([e-mail]) know how they blew it.  If you can't run Configure for
some reason, you'll have to generate a config.sh file by hand.

This installation script affects things in two ways: 1) it may do direct
variable substitutions on some of the files included in this kit, and
2) it builds a config.h file for inclusion in C programs.  You may edit
any of these files as the need arises after running this script.

If you make a mistake on a question, there is no easy way to back up to it
currently.  The easiest thing to do is to edit config.sh and rerun all the
SH files.  Configure will offer to let you do this before it runs the SH files.

EOH
rp="[Type carriage return to continue]"
echo $n "$rp $c"
. myread

: get old answers, if there is a config file out there
if test -f ../config.sh; then
    echo " "
    dflt=y
    rp="I see a config.sh file.  Did Configure make it on THIS system? [$dflt]"
    echo $n "$rp $c"
    . myread
    case "$ans" in
    n*) echo "OK, I'll ignore it.";;
    *)  echo "Fetching default answers from your old config.sh file..."
    tmp="$n"
    ans="$c"
        . ../config.sh
    n="$tmp"
    c="$ans"
    ;;
    esac
fi

: find out where common programs are
echo " "
echo "Locating common programs..."
cat <<EOSC >loc
$startsh
case \$# in
0) exit 1;;
esac
thing=\$1
shift
dflt=\$1
shift
for dir in \$*; do
    case "\$thing" in
    .)
    if test -d \$dir/\$thing; then
        echo \$dir
        exit 0
    fi
    ;;
    *)
    if test -f \$dir/\$thing; then
        echo \$dir/\$thing
        exit 0
    elif test -f \$dir/\$thing.exe; then
        : on Eunice apparently
        echo \$dir/\$thing
        exit 0
    fi
    ;;
    esac
done
echo \$dflt
exit 1
EOSC
chmod +x loc
$eunicefix loc
loclist="
cat
chgrp
chmod
cp
echo
expr
grep
ln
ls
make
mv
rm
sed
sleep
touch
tr
"
trylist="
Mcc
compress
cpp
date
emacs
execmail
ispell
line
lint
lp
lpr
mailx
mips
more
nroff
pack
pg
pmake
pr
rmail
sendmail
shar
smail
submit
tar
tbl
test
troff
uname
uuname
vi
"
for file in $loclist; do
    xxx=`loc $file $file $pth`
    eval $file=$xxx
    eval _$file=$xxx
    case "$xxx" in
    /*)
    echo $file is in $xxx.
    ;;
    *)
    echo "I don't know where $file is.  I hope it's in everyone's PATH."
    ;;
    esac
done
echo " "
echo "Don't worry if any of the following aren't found..."
ans=offhand
for file in $trylist; do
    xxx=`loc $file $file $pth`
    eval $file=$xxx
    eval _$file=$xxx
    case "$xxx" in
    /*)
    echo $file is in $xxx.
    ;;
    *)
    echo "I don't see $file out there, $ans."
    ans=either
    ;;
    esac
done
case "$egrep" in
egrep)
    echo "Substituting grep for egrep."
    egrep=$grep
    ;;
esac
case "$test" in
test)
    echo "Hopefully test is built into your sh."
    ;;
/bin/test)
    if sh -c "PATH= test true" >/dev/null 2>&1; then
    echo "Using the test built into your sh."
    test=test
    fi
    ;;
*)
    test=test
    ;;
esac
case "$echo" in
echo)
    echo "Hopefully echo is built into your sh."
    ;;
/bin/echo)
    echo " "
    echo "Checking compatibility between /bin/echo and builtin echo (if any)..."
    $echo $n "hi there$c" >foo1
    echo $n "hi there$c" >foo2
    if cmp foo1 foo2 >/dev/null 2>&1; then
    echo "They are compatible.  In fact, they may be identical."
    else
    case "$n" in
    '-n') n='' c='\c' ans='\c' ;;
    *) n='-n' c='' ans='-n' ;;
    esac
    cat <<FOO
They are not compatible!  You are probably running ksh on a non-USG system.
I'll have to use /bin/echo instead of the builtin, since Bourne shell doesn't
have echo built in and we may have to run some Bourne shell scripts.  That
means I'll have to use $ans to suppress newlines now.  Life is ridiculous.

FOO
    rp="Your cursor should be here-->"
    $echo $n "$rp$c"
    . myread
    fi
    $rm -f foo1 foo2
    ;;
*)
    : cross your fingers
    echo=echo
    ;;
esac
rmlist="$rmlist loc"

: set up shell script to do ~ expansion
cat >filexp <<EOSS
$startsh
: expand filename
case "\$1" in
 ~/*|~)
    echo \$1 | $sed "s|~|\${HOME-\$LOGDIR}|"
    ;;
 ~*)
    if $test -f /bin/csh; then
    /bin/csh -f -c "glob \$1"
    echo ""
    else
    name=\`$expr x\$1 : '..\([^/]*\)'\`
    dir=\`$sed -n -e "/^\${name}:/{s/^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:\([^:]*\).*"'\$'"/\1/" -e p -e q -e '}' </etc/passwd\`
    if $test ! -d "\$dir"; then
        me=\`basename \$0\`
        echo "\$me: can't locate home directory for: \$name" >&2
        exit 1
    fi
    case "\$1" in
    */*)
        echo \$dir/\`$expr x\$1 : '..[^/]*/\(.*\)'\`
        ;;
    *)
        echo \$dir
        ;;
    esac
    fi
    ;;
*)
    echo \$1
    ;;
esac
EOSS
chmod +x filexp
$eunicefix filexp

: determine where public executables go
case "$bin" in
'')
    dflt=`loc . /bin /usr/local/bin /usr/lbin /usr/local /usr/bin`
    ;;
*)  dflt="$bin"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where do you want to put the public executables? [$dflt]"
    $echo $n "$rp $c"
    . myread
    bin="$ans"
    bin=`filexp $bin`
    if test -d $bin; then
    cont=''
    else
    case "$fastread" in
    yes) dflt=y;;
    *) dflt=n;;
    esac
    rp="Directory $bin doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

: see if date exists, if so, init c_date
if $test ! "x$date" = "x" ; then
    c_date=`LANGUAGE= $date`
else
    c_date='date was unavailable at configuration'
fi

: get calendar mode and default calendar file name
$cat <<EOM

There is a neat feature that enables scanning of the message body for
entries to add to the users ".calendar" (or whatever) file.  These
entries are then processed by the system program calendar.  To use
this feature it needs to be enabled.  The name of the per user calendar
file used by your system's calendar program is also required.
EOM

case "$d_calendar" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)       dflt=y;;
esac

rp="Enable calendar feature [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_calendar="$define";;
*)  d_calendar="$undef";;
esac

case "$calendar" in
    '') dflt='calendar';;
    *)  dflt=$calendar;;
esac

if $test "$d_calendar" = "$define"; then
    echo " "
    rp="Default calendar file: [$dflt]"
    $echo $n "$rp $c"
    . myread
    calendar="$ans"
fi

: make some quick guesses about what we are up against
echo " "
$echo $n "Hmm...  $c"
if $test -f "$uname"; then
    uname_os=`$uname -s`
    uname_rel=`$uname -r`
    uname_rel=`expr "$uname_rel" : "\(...\).*"`
else
    uname_os=unknown
    uname_rel=unknown
fi
cat /usr/include/signal.h /usr/include/sys/signal.h >foo
if test `echo abc | tr a-z A-Z` = Abc ; then
    echo "Looks kind of like a USG system, but we'll see..."
    echo exit 1 >bsd
    echo exit 0 >usg
    echo exit 1 >v7
elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
    if $test "(" "$uname_os" = "SunOS" -a "$uname_rel" = "4.1" ")" ; then
    echo "Looks like SunOs 4.1, a USG system, but we'll see..."
    echo exit 1 >bsd
    echo exit 0 >usg
    echo exit 1 >v7
    elif $test "$uname_os" = "OSF1" ; then
    echo "Looks like an OSF/1 system, but we'll see.."
    echo exit 1 >bsd
    echo exit 1 >usg
    echo exit 1 >v7
    else
    echo "Looks kind of like a BSD system, but we'll see..."
    echo exit 0 >bsd
    echo exit 1 >usg
    echo exit 1 >v7
    fi
else
    echo "Looks kind of like a version 7 system, but we'll see..."
    echo exit 1 >bsd
    echo exit 1 >usg
    echo exit 0 >v7
fi
case "$eunicefix" in
*unixtovms*)
    cat <<'EOI'
There is, however, a strange, musty smell in the air that reminds me of
something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
EOI
    echo "exit 0" >eunice
    d_eunice="$define"
    ;;
*)
    echo " "
    echo "Congratulations.  You aren't running Eunice."
    d_eunice="$undef"
    echo "exit 1" >eunice
    ;;
esac
if test -f /xenix; then
    echo "Actually, this looks more like a XENIX system..."
    echo "exit 0" >xenix
else
    echo " "
    echo "It's not Xenix..."
    echo "exit 1" >xenix
fi
chmod +x xenix
$eunicefix xenix
if test -f /venix; then
    echo "Actually, this looks more like a VENIX system..."
    echo "exit 0" >venix
else
    echo " "
    if xenix; then
    : null
    else
    echo "Nor is it Venix..."
    fi
    echo "exit 1" >venix
fi
chmod +x bsd usg v7 eunice venix
$eunicefix bsd usg v7 eunice venix
rm -rf foo
rmlist="$rmlist bsd usg v7 eunice venix xenix"

# determine text processor to use, default to troff if found.
case "$roff" in
'')
    if $test -n "$troff"; then
    dflt="$troff"
    else
    dflt=$nroff
    fi
    ;;
*)  dflt="$roff";;
esac
$cat <<EOM

The Elm documentation (Reference Guide, Configuration Guide, etc.) is set up
for troff.  If you only have nroff, it can be used, but the documentation will
not be as readable.  If you use an alternate processor for troff/nroff
documents it can be specified here.  Elm expects the text processor to write
to standard out.  You will be given a chance to provide command line options
to this command in the next question.

EOM
cont=true
while $test "$cont" ; do
    echo " "
    echo "Give the name of the program used to format the Elm documentation on"
    $echo $n "your system: [$dflt] $c"
    rp="Preferred Elm documentation formatter program: [$dflt]"
    . myread
    roff=$ans;
    if $test -f "$ans"; then
    cont=''
    else
    lookup=`loc "$ans" "" . $pth`
    if $test -f "$lookup"; then
        cont=''
        roff=$lookup
    else
        if $test "$fastread" = yes; then
        dflt=y
        else
        dflt=n
        fi
        echo "Text processor $ans doesn't exist."
        rp="Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        dflt=''
        case "$ans" in
        y*) cont='';;
        esac
    fi
    fi
done

# determine text processor flags to use.
$cat <<EOM

If this text processor requires any options for proper formatting, specify
them here.  To specify no options, enter the word "none".  Some versions
of troff require the -t option to write to standard out.  This is the
proper place to specify that option.

EOM
dflt="$roffopts"
rp="What options should Elm use with $roff: [$dflt]"
$echo $n "$rp $c"
. myread
roffopts=$ans
case "$roffopts" in
'none') roffopts=''
     ;;
esac

: determine where manual pages go
$cat <<EOM

$package has manual pages that can be installed in unformatted or formatted form.
Either or both (or neither) of these may be installed.

Please give the location in which to store each type of man page.
To specify that a particular type is not to be installed, answer "none"
to the question.

EOM
case "$mansrc" in
'')
    dflt="/usr/man/mann /usr/man/manl /usr/man/man.L /usr/man/local/man1"
    dflt="$dflt /usr/man/l_man/man1 /usr/local/man/u_man/man1"
    dflt="$dflt /usr/local/man/l_man/man1 /usr/man/man1 /usr/man/u_man/man1"
    dflt="$dflt /usr/share/man/man1 /usr/share/man/manl"
    dflt=`loc . none $dflt`
    ;;
*)  dflt="$mansrc"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where do the unformatted manual pages go? [$dflt]"
    $echo $n "$rp $c"
    . myread
    mansrc=`filexp "$ans"`
    if $test "$mansrc" = none -o -d "$mansrc"; then
    cont=''
    else
    if $test "$fastread" = yes; then
        dflt=y
    else
        dflt=n
    fi
    rp="Directory $mansrc doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

# determine the extension for man pages
if $test "$mansrc" != none ; then
    case "$manext" in
    '')
    if $test "$manext_choice" = none; then
        dflt=none
    else
        case "$mansrc" in
        *l) dflt=.l ;;
        *n) dflt=.n ;;
        *L) dflt=.L ;;
        *)  dflt=.1 ;;
        esac
    fi
    ;;
    .*)    dflt="$manext";;
    *)  dflt=".$manext";;
    esac

    $cat <<EOM

The installed unformatted manual pages can have various extensions to suit the
conventions of the host operating system, for example "page.1".

Note that the period '.' must be included as part of the extension.

To specify no extension, enter the word "none".

EOM
    rp="What extension should be used on installed unformatted man pages: [$dflt]"
    $echo $n "$rp $c"
    . myread
    manext=$ans
    manext_choice=$ans
    case "$manext" in
    'none')
    manext=''
    ;;
    esac
    fi

# Now the formatted man pages ala System V
case "$catmansrc" in
'')
    dflt="/usr/man/catn /usr/man/catl /usr/catman/man.L /usr/catman/local/man1"
    dflt="$dflt /usr/local/catman/u_man/man1 /usr/local/catman/l_man/man1"
    dflt="$dflt /usr/catman/l_man/man1 /usr/man/cat1 /usr/catman/man1"
    dflt="$dflt /usr/catman/u_man/man1 /usr/catman/URM/g1"
    dflt="$dflt /usr/share/man/cat1 /usr/share/man/catl"
    dflt=`loc . none $dflt`
    ;;
*)  dflt="$catmansrc"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where do the formatted manual pages go? [$dflt]"
    $echo $n "$rp $c"
    . myread
    catmansrc=`filexp "$ans"`
    if $test "$catmansrc" = none -o -d "$catmansrc"; then
    cont=''
    else
    if $test "$fastread" = yes; then
        dflt=y
    else
        dflt=n
    fi
    rp="Directory $catmansrc doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

# if installing formatted manual pages, determine a number of other things.
if $test "$catmansrc" != none ; then
#       determine text processor to use, default to nroff if found.
    case "$manroff" in
    '')
    if $test -n "$nroff"; then
        dflt="$nroff"
    else
        dflt=$troff
    fi
    ;;
    *)  dflt="$manroff";;
    esac
    $cat <<EOM

Online manual pages are generally formatted with nroff.  If you use an
alternate text processor for on-line manual pages it can be specified here.
Elm expects the text processor to write to standard out.

Note: This does not effect the formatter previously chosen for the Elm
      Elm documentation (Reference Guide, Configuration Guide, etc.).

EOM
    cont=true
    while $test "$cont" ; do
    echo " "
    echo "Give the name of the program used to format on-line manual pages"
    $echo $n "on your system: [$dflt] $c"
    rp="Preferred manual page formatter: [$dflt]"
    . myread
    manroff=$ans;
    if $test -f "$ans"; then
        cont=''
    else
        lookup=`loc "$ans" "" . $pth`
        if $test -f "$lookup"; then
        cont=''
        manroff=$lookup
        else
        if $test "$fastread" = yes; then
            dflt=y
          else
              dflt=n
          fi
        echo "Text processor $ans doesn't exist."
        rp="Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        dflt=''
        case "$ans" in
        y*) cont='';;
        esac
        fi
    fi
    done

    # determine text processor flags to use.
    $cat <<EOM

If this text processor requires any options for proper formatting, specify
then here.  To specify no options, enter the word "none".

EOM
    dflt="$manroffopts"
    rp="What options should Elm use with $manroff: [$dflt]"
    $echo $n "$rp $c"
    . myread
    manroffopts=$ans
    case "$manroffopts" in
    'none') manroffopts=''
    ;;
    esac

    # determine the extension for catman pages
    case "$catmanext" in
    '')
    if $test "$catmanext_choice" = none; then
        dflt=none
    else
        case "$manext" in
        .*) dflt=$manext ;;
        *)
        if $test "$manext_choice" = none; then
            dflt=none
        else
                case "$catmansrc" in
                *l) dflt=.l ;;
                *n) dflt=.n ;;
                *L) dflt=.L ;;
                *g1) dflt=none ;;
                *)  dflt=.1 ;;
                esac
        fi
        esac
    fi
    ;;
    .*)    dflt="$catmanext";;
    *)  dflt=".$catmanext";;
    esac

    $cat <<EOM

The installed formatted manual pages can have various extensions to suit the
conventions of the host operating system, for example "page.1".

Note that the period '.' must be included as part of the extension.

To specify no extension, enter the word "none".

EOM
    rp="What extension should be used on installed formatted man pages: [$dflt]"
    $echo $n "$rp $c"
    . myread
    catmanext=$ans
    catmanext_choice=$ans
    case "$catmanext" in
    'none')
    catmanext=''
    ;;
    esac

    if $test -f $pack -o -f $compress ; then
#    See if the formatted manual pages are to be packed or compressed
    if $test -f $pack; then
        $cat <<EOM

The formatted manual pages may be packed (.z suffix) or compressed (.Z
suffix) or left unpacked on your system.  The next two questions will deal
with how you want the formatted manual pages installed.  Answering no to
both packed and compressed will leave them unpacked.  Only one of packed
or compressed can be chosen.

EOM
        case "$suffix" in
        .Z) dflt=n;;
        .z) dflt=y;;
        *)  if [ "$catmansrc/*.z" != "`$echo $catmansrc/*.z`" ]; then
            dflt=y
        else
            dflt=n
        fi ;;
        esac
        rp="Should the formatted manual pages be packed? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) packed=y
        suffix=.z
        packer="$pack -f" ;;
        *)  packed=n ;;
        esac
    fi

    if $test -f $compress -a "$suffix" != ".z" ; then
        case "$suffix" in
        .z) dflt=n;;
        .Z) dflt=y;;
        *)  if [ "$catmansrc/*.Z" != "`$echo $catmansrc/*.Z`" ]; then
            dflt=y
        else
            dflt=n
        fi ;;
        esac
        rp="Should the formatted manual pages be compressed? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) packed=y
        suffix=.Z
        packer="$compress" ;;
        *)  packed=n ;;
        esac
    fi

    if $test "$packed" = 'n' ; then
        suffix=''
        packer=''
    fi
    else
    packed=''
    suffix=''
    packer=''
    fi

fi

: default clear to no extra flags
xencf=
xenlf=
d_xenix="$undef"
d_bsd="$undef"
: see if we are xenix
if xenix; then
    d_xenix="$define"
:    now are we a 286
    case "`$uname -p`" in
    i80286)
        xencf="-LARGE -Ml2et32"
        xenlf="-Ml2t32 -F 5600 -SEG 512"
      esac
fi
if bsd; then
    d_bsd="$define"
fi

: find out how to find out full name
echo " "
case "$d_berknames" in
"$define")
    dflt=y;;
"$undef")
    dflt=n;;
*)
    if bsd; then
    dflt=y
    elif xenix; then
    dflt=y
    else
    dflt=n
    fi
    ;;
esac
echo "Does your /etc/passwd file keep full names in Berkeley/V7 format (name first"
$echo $n "thing after ':' in GCOS field)? [$dflt] $c"
rp="Berkeley/V7 format full name? [$dflt]"
. myread
case "$ans" in
  y*)
    d_passnames="$define"
    d_berknames="$define"
    d_usgnames="$undef"
    nametype=bsd
    ;;
  *)
    echo " "
    case "$d_usgnames" in
    "$define")
    dflt=y;;
    "$undef")
    dflt=n;;
    *)
    if usg; then
        dflt=y
    else
        dflt=n
    fi
    ;;
    esac
    echo "Does your passwd file keep full names in USG format (name sandwiched"
    $echo $n "between a '-' and a '(')? [$dflt] $c"
    rp="USG format full name? [$dflt]"
    . myread
    case "$ans" in
      n*)
    echo "Full name will be taken from ~/.fullname"
    d_passnames="$undef"
    d_berknames="$undef"
    d_usgnames="$undef"
    nametype=other
    ;;
      *)
    d_passnames="$define"
    d_berknames="$undef"
    d_usgnames="$define"
    nametype=usg
    ;;
    esac
    ;;
esac

: see if we have to deal with yellow pages, if so, put sun
: library first, as the yp password routines must override
: the c library ones
if $test -d /usr/etc/yp || $test -d /etc/yp; then
    if $test "$passcat" = "ypcat passwd"; then
    dflt=y
    elif $contains '^\+:' /etc/passwd; then
    dflt=y
    else
    dflt=n
    fi
    rp="Are you getting the passwd file via yellow pages? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) passcat='ypcat passwd'
    case "$libswanted" in
    '') libswanted='sun c_s';;
    *)  libswanted=`$echo "$libswanted" | $sed -e 's/sun //g'`
        libswanted="sun $libswanted";;
    esac
    ;;
    *) passcat='cat /etc/passwd';;
    esac
else
    passcat='cat /etc/passwd'
fi

: see what memory models we can support
case "$models" in
'')
    : We may not use Cppsym or we get a circular dependency through cc.
    : But this should work regardless of which cc we eventually use.
    cat >pdp11.c <<'EOP'
main() {
#ifdef pdp11
    exit(0);
#else
    exit(1);
#endif
}
EOP
    cc -o pdp11 pdp11.c >/dev/null 2>&1
    if pdp11 2>/dev/null; then
    dflt='unsplit split'
    else
    ans=`loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
    case "$ans" in
    X) dflt='none';;
    *)  if $test -d /lib/small || $test -d /usr/lib/small; then
        dflt='small'
        else
        dflt=''
        fi
        if $test -d /lib/medium || $test -d /usr/lib/medium; then
        dflt="$dflt medium"
        fi
        if $test -d /lib/large || $test -d /usr/lib/large; then
        dflt="$dflt large"
        fi
        if $test -d /lib/huge || $test -d /usr/lib/huge; then
        dflt="$dflt huge"
        fi
    esac
    fi
    ;;
*)  dflt="$models" ;;
esac
if $test -z "$xencf" ; then
$cat <<EOM

Some systems have different model sizes.  On most systems they are called
small, medium, large, and huge.  On the PDP11 they are called unsplit and
split.  If your system doesn't support different memory models, say "none".
If you wish to force everything to one memory model, say "none" here and
put the appropriate flags later when it asks you for other cc and ld flags.
Xenix and Venix systems may wish to put "none" and let the compiler figure
things out.
(In the following question multiple model names should be space separated.)

EOM
rp="Which models are supported? [$dflt]"
$echo $n "$rp $c"
. myread
models="$ans"

case "$models" in
none)
    small=''
    medium=''
    large=''
    huge=''
    unsplit=''
    split=''
    ;;
*split)
    case "$split" in
    '')
    if $contains '\-i' $mansrc/man1/ld.1 >/dev/null 2>&1 || \
       $contains '\-i' $mansrc/man1/cc.1 >/dev/null 2>&1; then
        dflt='-i'
    else
        dflt='none'
    fi
    ;;
    *) dflt="$split";;
    esac
    rp="What flag indicates separate I and D space? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';;
    esac
    split="$ans"
    unsplit=''
    ;;
*large*|*small*|*medium*|*huge*)
    case "$models" in
    *large*)
    case "$large" in
    '') dflt='-Ml';;
    *) dflt="$large";;
    esac
    rp="What flag indicates large model? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';
    esac
    large="$ans"
    ;;
    *) large='';;
    esac
    case "$models" in
    *huge*)
    case "$huge" in
    '') dflt='-Mh';;
    *) dflt="$huge";;
    esac
    rp="What flag indicates huge model? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';
    esac
    huge="$ans"
    ;;
    *) huge="$large";;
    esac
    case "$models" in
    *medium*)
    case "$medium" in
    '') dflt='-Mm';;
    *) dflt="$medium";;
    esac
    rp="What flag indicates medium model? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';
    esac
    medium="$ans"
    ;;
    *) medium="$large";;
    esac
    case "$models" in
    *small*)
    case "$small" in
    '') dflt='none';;
    *) dflt="$small";;
    esac
    rp="What flag indicates small model? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';
    esac
    small="$ans"
    ;;
    *) small='';;
    esac
    ;;
*)
    echo "Unrecognized memory models--you may have to edit Makefile.SH"
    ;;
esac
fi

: see if we need a special compiler
echo " "
if usg; then
    case "$cc" in
    '')
    case "$Mcc" in
    /*) dflt='Mcc'
        ;;
    *)
        case "$large" in
        -M*)
        dflt='cc'
        ;;
        *)
        if $contains '\-M' $mansrc/cc.1 >/dev/null 2>&1 ; then
            dflt='cc -M'
        else
            dflt='cc'
        fi
        ;;
        esac
        ;;
    esac
    ;;
    *)  dflt="$cc";;
    esac
    $cat <<'EOM'

On some systems the default C compiler will not resolve multiple global
references that happen to have the same name.  On some such systems the
"Mcc" command may be used to force these to be resolved.  On other systems
a "cc -M" command is required.  (Note that the -M flag on other systems
indicates a memory model to use!)  If you have the Gnu C compiler, you
might wish to use that instead.  What command will force resolution on
EOM
    $echo $n "this system? [$dflt] $c"
    rp="Command to resolve multiple refs? [$dflt]"
    . myread
    cc="$ans"
else
    case "$cc" in
    '') dflt=cc;;
    *) dflt="$cc";;
    esac
    rp="Use which C compiler? [$dflt]"
    $echo $n "$rp $c"
    . myread
    cc="$ans"
fi
case "$cc" in
gcc*) cpp=`loc gcc-cpp $cpp $pth`;;
esac

: determine optimize, if desired, or use for debug flag also
case "$optimize" in
' ') dflt="none"
     ;;
'') dflt="-O";
    ;;
*)  dflt="$optimize"
    ;;
esac
cat <<EOH

Some C compilers have problems with their optimizers, by default, $package
compiles with the -O flag to use the optimizer.  Alternately, you might
want to use the symbolic debugger, which uses the -g flag (on traditional
UNIX systems).  Either flag can be specified here.  To use neither flag,
specify the word "none".

EOH
rp="What optimizer/debugger flag should be used? [$dflt]"
$echo $n "$rp $c"
. myread
optimize="$ans"
case "$optimize" in
'none') optimize=" "
     ;;
esac

case "$ccflags" in
'') case "$cc" in
    *gcc*) dflt='-fpcc-struct-return -traditional';;
    *) dflt='';;
    esac
    ;;
*) dflt="$ccflags";;
esac
for thisincl in $inclwanted; do
    if test -d $thisincl; then
    case "$dflt" in
    *$thisincl*);;
    *) dflt="$dflt -I$thisincl";;
    esac
    fi
done
case "$optimize" in
-g*)
    case "$dflt" in
    *DEBUG*);;
    *) dflt="$dflt -DDEBUG";;
    esac
    ;;
esac
case "$dflt" in
'') dflt=none;;
esac
if $test -n "$xencf" ; then
    $echo "Xenix 286 system, using compiler flags $xencf"
    $echo "do not respecify these flags below."
    $echo ""
fi
cat <<EOH

Your C compiler may want other flags.  For this question you should
include -I/whatever and -DWHATEVER flags and any other flags used by
the C compiler, but you should NOT include libraries or ld flags like
-lwhatever.  To use no flags, specify the word "none".

EOH
rp="Any additional cc flags? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
none) ans='';
esac
ccflags="$ans"

: the following weeds options from ccflags that are of no interest to cpp
cppflags="$ccflags"
case "$cc" in
*gcc*) cppflags="$cppflags -D__GNUC__";;
esac
case "$cppflags" in
'');;
*)  set X $cppflags
    cppflags=''
    for flag do
    case $flag in
    -D*|-I*|-U*) cppflags="$cppflags $flag";;
    esac
    done
    case "$cppflags" in
    *-*)  echo "(C preprocessor flags: $cppflags)";;
    esac
    ;;
esac

if $test -n "$xenlf" ; then
    $echo "Xenix 286 system, using linker flags $xenlf"
    $echo "do not respecify these flags below"
    $echo ""
fi
case "$ldflags" in
'') if venix; then
    dflt='-i -z'
    else
    dflt='none'
    fi
    ;;
*) dflt="$ldflags";;
esac
cat <<EOH

Your linker/loader may want other flags.  For example, you might
want to enable support for the symbolic debugger (-g on traditional
UNIX systems).  For this question you should specify those flags.
Do NOT specify libraries (-lwhatever) here.  Most systems will not
need any special flags, in which case specify "none".

EOH
rp="Any additional ld flags (NOT including libraries)? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
none) ans='';
esac
ldflags="$ans"
rmlist="$rmlist pdp11"

echo " "
echo "Checking for optional libraries..."
case "$libs" in
'') dflt='';;
*) dflt="$libs";;
esac
case "$libswanted" in
'') libswanted='c_s';;
esac
for thislib in $libswanted; do
    case "$thislib" in
    dbm) thatlib=ndbm;;
    *_s) thatlib=NONE;;
    *) thatlib="${thislib}_s";;
    *) thatlib=NONE;;
    esac
    xxx=`loc lib$thislib.a X /usr/lib /usr/ccs/lib /usr/local/lib /lib`
    if test -f $xxx; then
    echo "Found -l$thislib."
    case "$dflt" in
    *-l$thislib*|*-l$thatlib*);;
    *) dflt="$dflt -l$thislib";;
    esac
    else
    xxx=`loc lib$thislib.a X $libpth`
    if test -f $xxx; then
        echo "Found $xxx."
        case "$dflt" in
        *$xxx*);;
        *) dflt="$dflt $xxx";;
        esac
    else
        xxx=`loc Slib$thislib.a X $xlibpth`
        if test -f $xxx; then
        echo "Found -l$thislib."
        case "$dflt" in
        *-l$thislib*|*-l$thatlib*);;
        *) dflt="$dflt -l$thislib";;
        esac
        else
        echo "No -l$thislib."
        fi
    fi
    fi
done
set X $dflt
shift
dflt="$*"
case "$dflt" in
'') dflt='none';;
esac

$cat <<EOM

Some versions of UNIX support shared libraries, which make
executables smaller but make load time slightly longer.

On some systems, mostly newer UNIX System V's, the shared library
is included by putting the option "-lc_s" as the last thing on the
cc command line when linking.  Other systems use shared libraries
by default.  There may be other libraries needed to compile $package
on your machine as well.  If your system needs the "-lc_s" option,
include it here.  Include any other special libraries here as well.
Say "none" for none.
EOM

echo " "
rp="Any additional libraries? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
none) ans='';
esac
libs="$ans"

: check for "existence of altzone"
echo " "
case "$d_altcheck" in
"$define")    ;;
"$undef")    ;;
*)
        echo "Checking to see if altzone exists as a global variable works..."
        $rm -f try try.o
        $cat >try.c <<'EOCP'

main()
    {
    long    t;
    extern    long    altzone;

    t = altzone;

    exit(0);
    }
EOCP
        if $cc try.c -o try >/dev/null 2>&1 ; then
        d_altcheck="$define"
        echo "Your system supports altzone..."
        else
        d_altcheck="$undef"
        echo "Your system does not support altzone..."
        fi
        $rm -f try.c try.o try
    ;;
esac

: check to see if the macros are 8-bit clean, ask the user
:
$cat <<EOM


Not all environments are restricted to the ASCII 7-bit character set.
For example, the ISO 8859/1 (Latin alphabet no. 1) character set,
consisting of 8 bits and 191 printable characters, is becoming
more and more common, especially in non-English speaking countries.

Unfortunately, not all isprint() functions or macros, which ELM
uses to determine whether a character is printable or not, will
handle non-ASCII (8-bit) characters properly.  It is suggested that you
start with this value configured to handle 8-bit characters correctly
and if there are problems with Elm aborting while displaying messages
that use extended character sets to reconfigure Elm to only display
7-bit characters.

EOM

case "$d_ascii" in
    "$define")   dflt='n';;
    *)  dflt='y';;
esac

echo "  "
rp="Should Elm assume that isprint() won't break on non-ASCII characters? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
    y*) d_ascii="$undef";;
    *) d_ascii="$define";;
esac


case "$d_content" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)       dflt=n;;
esac

$cat << EOM

Some modern Mail Transport Agents (mailers) support the Content-Length: header.
In doing so, they do not wish to have messages escaped to protect 'From ' lines
in the body of the message, among other strings.  Does the Mail Transport Agent
in use on this system honor the Content-Length: header?
EOM

echo " "
rp="Honors Content-Length: header? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_content="$define";;
*)  d_content="$undef";;
esac

: get list of predefined functions in a handy place
echo " "
case "$libc" in
'') if test -d /usr/apollo; then
    libc=/lib/libc
    else
    libc=unknown
    fi
    ;;
'/lib/libc /lib/clib')
    libc=/lib/libc
    ;;
esac
case "$mips" in
'') mips=false;;
'mips') mips=false;;
esac
case "$nm_opts" in
'') if test -f /mach_boot; then
    nm_opts=''
    elif test -d /usr/ccs/lib; then
    nm_opts='-p'
    elif "$mips"; then
    nm_opts='-B'
    else
    nm_opts=''
    fi
    ;;
esac
: on mips, we DO NOT want /lib, and we want inclPath/usr/lib
case "$libpth" in
'') if "$mips"; then
    libpth='$inclPath/usr/lib /usr/local/lib'
    nm_opts='-B'
    else
    libpth='/usr/ccs/lib /lib /usr/lib /usr/ucblib /usr/local/lib'
    fi
    ;;
esac
case "$libs" in
*-lc_s*) libc=`./loc libc_s.a $libc $libpth`
esac
libnames='';
case "$libs" in
'') ;;
*)  for thislib in $libs; do
    case "$thislib" in
    -l*) thislib=`expr X$thislib : 'X-l\(.*\)'`
        try=`./loc lib$thislib.a blurfl/dyick $libpth`
        if test ! -f $try; then
        try=`./loc lib$thislib blurfl/dyick $libpth`
        if test ! -f $try; then
            try=`./loc $thislib blurfl/dyick $libpth`
            if test ! -f $try; then
            try=`./loc Slib$thislib.a blurfl/dyick $xlibpth`
            if test ! -f $try; then
                try=''
            fi
            fi
        fi
        fi
        libnames="$libnames $try"
        ;;
    *) libnames="$libnames $thislib" ;;
    esac
    done
    ;;
esac
set /usr/ccs/lib/libc.so
test -f $1 || set /usr/lib/libc.so
test -f $1 || set /usr/lib/libc.so.[0-9]*
test -f $1 || set /lib/libsys_s.a
eval set \$$#
if test -f "$1"; then
    echo "Your shared C library is in $1."
    libc="$1"
elif test -f "$libc"; then
    echo "Your C library is in $libc."
elif test -f /lib/libc.a; then
    echo "Your C library is in /lib/libc.a.  You're normal."
    libc=/lib/libc.a
else
    if   ans=`./loc libc.a  blurfl/dyick $libpth`; test -f "$ans"; then
    :
    elif ans=`./loc libc    blurfl/dyick $libpth`; test -f "$ans"; then
        libnames="$libnames "`./loc clib blurfl/dyick $libpth`
    elif ans=`./loc clib    blurfl/dyick $libpth`; test -f "$ans"; then
    :
    elif ans=`./loc Slibc.a blurfl/dyick $xlibpth`; test -f "$ans"; then
    :
    elif ans=`./loc Mlibc.a blurfl/dyick $xlibpth`; test -f "$ans"; then
    :
    elif ans=`./loc Llibc.a blurfl/dyick $xlibpth`; test -f "$ans"; then
    :
    fi
    if test -f "$ans"; then
    echo "Your C library is in $ans, of all places."
    libc=$ans
    else
    cat <<EOM

I can't seem to find your C library.  I've looked in the following places:

    $libpth

None of these seems to contain your C library.  What is the full name
EOM
    dflt=None
    $echo $n "of your C library? $c"
    rp='C library full name?'
    . myread
    libc="$ans"
    fi
fi
echo " "
if test $libc = "/lib/libc"; then
    libc="$libc /lib/clib"
fi
set `echo $libc $libnames | tr ' ' '\012' | sort | uniq`
$echo $n "Extracting names from $* for later perusal...$c"
nm $nm_opts $* 2>/dev/null >libc.tmp
$sed -n -e 's/^.* [ATDS]  *[_.]*//p' -e 's/^.* [ATDS] //p' <libc.tmp >libc.list
if $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $sed -n -e 's/^__*//' -e 's/^\([a-zA-Z_0-9$]*\).*xtern.*/\1/p' \
    <libc.tmp >libc.list; \
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $sed -n -e '/|UNDEF/d' -e '/FUNC..GL/s/^.*|__*//p' <libc.tmp >libc.list; \
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $sed -n -e 's/^.* D __*//p' -e 's/^.* D //p' <libc.tmp >libc.list; \
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $sed -n -e 's/^_//' -e 's/^\([a-zA-Z_0-9]*\).*xtern.*text.*/\1/p' \
        <libc.tmp >libc.list; \
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $grep '|' <libc.tmp | $sed -n -e '/|COMMON/d' -e '/|DATA/d' \
                                   -e 's/^\([^     ]*\).*/\1/p' >libc.list
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
elif $sed -n -e 's/^.*|FUNC |GLOB .*|//p' -e 's/^.*|FUNC |WEAK .*|//p' \
       <libc.tmp >libc.list; \
  $contains '^printf$' libc.list >/dev/null 2>&1; then
    echo done
else
    nm -p $* 2>/dev/null >libc.tmp
    $sed -n -e 's/^.* [AT]  *_[_.]*//p' -e 's/^.* [AT] //p' <libc.tmp >libc.list
    if $contains '^printf$' libc.list >/dev/null 2>&1; then
    nm_opts='-p'
    echo "done"
    else
    echo " "
    echo "nm didn't seem to work right."
    echo "Trying ar instead..."
    if ar t $libc > libc.tmp; then
        for thisname in $libnames; do
        ar t $thisname >>libc.tmp
        done
        $sed -e 's/\.o$//' < libc.tmp > libc.list
        echo "Ok."
    else
        echo "ar didn't seem to work right."
        echo "Maybe this is a Cray...trying bld instead..."
        if bld t $libc | $sed -e 's/.*\///' -e 's/\.o:.*$//' > libc.list; then
        for thisname in $libnames; do
            bld t $libnames | \
            $sed -e 's/.*\///' -e 's/\.o:.*$//' >>libc.list
            ar t $thisname >>libc.tmp
        done
        echo "Ok."
        else
        echo "That didn't work either.  Giving up."
        exit 1
        fi
    fi
    fi
fi

: old version

inlibc='echo " ";
if $contains "^$1\$" libc.list >/dev/null 2>&1;
then echo "$1() found"; eval "$2=$define";
else echo "$1() not found"; eval "$2=$undef"; fi'

: : new version
:
: inlibc='echo " "; td=$define; tu=$undef;
: if $contains "^$1\$" libc.list >/dev/null 2>&1;
: then echo "$1() found";
:   eval "case \"\$$2\" in undef) . whoa; esac"; eval "$2=\$td";
: else echo "$1() not found";
:   eval "case \"\$$2\" in define) . whoa; esac"; eval "$2=\$tu"; fi'
:
: rmlist="$rmlist libc.tmp libc.list"
:
: see if crypt exists
echo " "
if $contains '^crypt$' libc.list >/dev/null 2>&1; then
    echo 'crypt() found.'
    d_crypt="$define"
    cryptlib=''
else
    cryptlib=`loc Slibcrypt.a "" $xlibpth`
    if $test -z "$cryptlib"; then
    cryptlib=`loc Mlibcrypt.a "" $xlibpth`
    else
    cryptlib=-lcrypt
    fi
    if $test -z "$cryptlib"; then
    cryptlib=`loc Llibcrypt.a "" $xlibpth`
    else
    cryptlib=-lcrypt
    fi
    if $test -z "$cryptlib"; then
    cryptlib=`loc libcrypt.a "" $libpth`
    else
    cryptlib=-lcrypt
    fi
#
#    now try for international versions?
#
    if $test -z "$cryptlib"; then
    cryptlib=`loc Slibcrypt_i.a "" $libpth`
    if $test -z "$cryptlib"; then
        cryptlib=`loc Mlibcrypt_i.a "" $libpth`
    else
        cryptlib=-lcrypt_i
    fi
    if $test -z "$cryptlib"; then
        cryptlib=`loc Llibcrypt_i.a "" $libpth`
    else
        cryptlib=-lcrypt_i
    fi
    if $test -z "$cryptlib"; then
        cryptlib=`loc libcrypt_i.a "" $libpth`
    else
        cryptlib=-lcrypt_i
    fi
    fi
    if $test -z "$cryptlib"; then
    echo 'crypt() not found.'
    d_crypt="$undef"
    else
    d_crypt="$define"
    fi
fi

: check for cuserid function
set cuserid d_cuserid
eval $inlibc

: determine if the host name should be displayed on the index page

case "$d_disphost" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    dflt=n;;
esac
$cat <<EOM

Elm can either display the hostname on the index page, or just
the folder name.  If the hostname is displayed, the folder name
will read hostname:folder.  If not it will just read folder.

EOM
rp="Should Elm display the hostname as part of the folder name? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_disphost="$define";;
*)  d_disphost="$undef";;
esac


echo " "
if $contains flock libc.list >/dev/null 2>&1; then
    echo 'flock() found.'
    if $contains EWOULDBLOCK /usr/include/errno.h > /dev/null 2>&1; then
        has_flock="$define"
        echo 'flock locking available.'
    elif $contains EWOULDBLOCK /usr/include/sys/errno.h > /dev/null 2>&1; then
        has_flock="$define"
        echo 'flock locking available.'
    else
    has_flock="$undef"
        echo 'flock locking not available.'
    d_flock="$undef"
    fi
else
    has_flock="$undef"
    d_flock="$undef"
fi

if $contains F_SETLK /usr/include/sys/fcntl.h >/dev/null 2>&1; then
    echo 'F_SETLK found, fcntl locking available'
    has_fcntl="$define"
elif $contains F_SETLK /usr/include/sys/fcntlcom.h >/dev/null 2>&1; then
    echo 'F_SETLK found, fcntl locking available'
    has_fcntl="$define"
elif $contains F_SETLK /usr/include/sys/file.h >/dev/null 2>&1; then
    echo 'F_SETLK found, fcntl locking available'
    has_fcntl="$define"
elif $contains F_SETLK /usr/include/fcntl.h >/dev/null 2>&1; then
    echo 'F_SETLK found, fcntl locking available'
    has_fcntl="$define"
else
    echo 'F_SETLK not found, fcntl locking not available'
    has_fcntl="$undef"
    d_fcntlock="$undef"
fi

if $test "$has_flock" = "$define" -o "$has_fcntl" = "$define"; then
    $cat <<EOM
Mail Transport Agents (sendmail, etc.) and Mail User Agents (Elm) can
use a variety of file locking protocols.  Based on your system type,
usage of a network, and MTA/MUAs in use, you may want to configure more
than one of the following Mail Locking Protocols.  It is recommended
that you use as many as are possible on your system to avoid problems.
All systems can support the dot locking method (.lock files).

Available locking protocols:
    dot locking (.lock)
EOM
    if $test "$has_flock" = "$define"; then
    echo '    flock style locking'
    fi

    if $test "$has_fcntl" = "$define"; then
    echo '    fcntl style locking'
    fi

    if $test "$has_flock" = "$define" -a "$has_fcntl" = "$define"; then
    $cat <<EOM
On some systems, flock style locking and fcntl style locking use the
same underlying calls so both are not only not necessary, but may
interfere with each other.  On other systems they are distinct and both
should be used.  You will have to consult the documentation for your
operating system to determine in which class your system resides.

EOM
    fi

    case "$d_dotlock" in
    "$define")    dflt=y;;
    "$undef")    dflt=n;;
    *)        dflt=y;;
    esac

    rp="Would you like to use dot lock style mail spool locking? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_dotlock="$define";;
    *)  d_dotlock="$undef";;
    esac

    if $test "$has_flock" = "$define"; then
    case "$d_flock" in
    "$define")    dflt=y;;
    "$undef")    dflt=n;;
    *)        dflt=y;;
    esac

    rp="Would you like to use flock style mail spool locking? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_flock="$define";;
    *)  d_flock="$undef";;
    esac
    fi

    if $test "$has_fcntl" = "$define"; then
    case "$d_fcntlock" in
    "$define")    dflt=y;;
    "$undef")    dflt=n;;
    *)        dflt=y;;
    esac

    rp="Would you like to use fcntl style mail spool locking? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_fcntlock="$define";;
    *)  d_fcntlock="$undef";;
    esac
    fi
else
    d_dotlock="$define"
    echo 'Dot lock style locking will be used'
fi

if $test -d /usr/spool/locks ; then
    lock_dir=/usr/spool/locks
elif $test -d /usr/spool/uucp ; then
    lock_dir=/usr/spool/uucp
elif $test -d /var/spool/locks ; then
    lock_dir=/var/spool/locks
elif $test -d /var/spool/uucp ; then
    lock_dir=/var/spool/uucp
else
    lock_dir=/tmp
fi
echo " "
echo "Non-mailbox locks will use the $lock_dir directory"
echo " "

: now get the host name
if $test "$autohostname" != "$undef" -o "$hostname" = "" ; then
    autohostname="$define"
    echo " "
    echo "Figuring out host name..."
    echo 'Maybe "hostname" will work...'
    if ans=`sh -c hostname 2>&1` ; then
    hostname=$ans
    phostname=hostname
    else
    if xenix; then
        echo 'Oh, dear.  Maybe "/etc/systemid" is the key...'
        if ans=`cat /etc/systemid 2>&1` ; then
        hostname=$ans
        phostname='cat /etc/systemid'
        echo "Whadyaknow.  Xenix always was a bit strange..."
        else
        echo 'No, maybe "uuname -l" will work...'
        if ans=`sh -c '$uuname -l' 2>&1` ; then
            hostname=$ans
            phostname='$uuname -l'
        else
            echo 'Strange.  Maybe "uname -n" will work...'
            if ans=`sh -c '$uname -n' 2>&1` ; then
            hostname=$ans
            phostname='$uname -n'
            else
            echo 'Oh well, maybe I can mine it out of whoami.h...'
            if ans=`sh -c $contains' sysname /usr/include/whoami.h' 2>&1` ; then
                hostname=`echo "$ans" | $sed 's/^.*"\(.*\)"/\1/'`
                phostname="sed -n -e '"'/sysname/s/^.*\"\\(.*\\)\"/\1/{'"' -e p -e q -e '}' </usr/include/whoami.h"
            else
                case "$hostname" in
                '') echo "Does this machine have an identity crisis or something?"
                phostname=''
                ;;
                *)  echo "Well, you said $hostname before...";;
                esac
            fi
            fi
        fi
        fi
    else
        if $test -r /etc/systemid ; then
        echo "What is a non-Xenix system doing with /etc/systemid?"
        fi
        echo 'No, maybe "uuname -l" will work...'
        if $test -n "$uuname" && ans=`sh -c "$uuname -l" 2>&1` ; then
        hostname=$ans
        phostname="$uuname -l"
        else
        echo 'Strange.  Maybe "uname -n" will work...'
        if $test -n "$uname" && ans=`sh -c "$uname -n" 2>&1` ; then
            hostname=$ans
            phostname="$uname -n"
        else
            if ans=`cat /etc/systemid 2>&1` ; then
            hostname=$ans
            phostname='cat /etc/systemid'
            echo "Well, I'll use the systemid file anyway..."
            else
            echo 'Oh well, maybe I can mine it out of whoami.h...'
            if ans=`sh -c $contains' sysname /usr/include/whoami.h' 2>&1` ; then
                hostname=`echo "$ans" | $sed 's/^.*"\(.*\)"/\1/'`
                phostname="sed -n -e '"'/sysname/s/^.*\"\\(.*\\)\"/\1/{'"' -e p -e q -e '}' </usr/include/whoami.h"
            else
                case "$hostname" in
                '') echo "Does this machine have an identity crisis or something?"
                phostname=''
                ;;
                *)  echo "Well, you said $hostname before...";;
                esac
            fi
            fi
        fi
        fi
    fi
    fi
else
    echo "Last time you said the hostname was $hostname"
fi
: you do not want to know about this
set $hostname
hostname=$1

: translate upper to lower if necessary
case "$hostname" in
    *[A-Z]*)
    hostname=`echo $hostname | tr '[A-Z]' '[a-z]'`
    echo "(Normalizing case in your host name)"
    ;;
esac

: verify guess
if $test "$hostname" ; then
    dflt=y
    echo 'Your host name appears to be "'$hostname'".'
    $echo $n "Is this correct? [$dflt] $c"
    rp="Sitename is $hostname? [$dflt]"
    . myread
    case "$ans" in
      y*)  ;;
      *)      hostname='' ;;
    esac
fi

: bad guess or no guess
while $test "X$hostname" = X ; do
    dflt=''
    rp="Please type the (one word) name of your host:"
    $echo $n "$rp $c"
    . myread
    hostname="$ans"
    autohostname="$undef"
done

echo " "
case "$hostname" in
*.*)
    dflt=`$expr "X$hostname" : "X[^.]*\(\..*\)"`
    hostname=`$expr "X$hostname" : "X\([^.]*\)\."`
    echo "(Trimming domain name from host name--host name is now $hostname)"
    ;;
*)  case "$mydomain" in
    '') dflt='.UUCP';;
    *) dflt="$mydomain";;
    esac
    ;;
esac
rp="What is your domain name? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
'') ;;
.*) ;;
*) ans=".$ans";;
esac
mydomain="$ans"

: a little sanity check here
case "$phostname" in
'') ;;
*)  case `$phostname` in
    $hostname$mydomain|$hostname) ;;
    *)
    case "$phostname" in
    sed*)
        echo "(That doesn't agree with your whoami.h file, by the way.)"
        ;;
    *)
        echo "(That doesn't agree with your $phostname command, by the way.)"
        ;;
    esac
    phostname=''
    ;;
    esac
    ;;
esac

: see if there is a whoami file
echo " "
if $test -r /usr/include/whoami.h ; then
    d_whoami="$define"
    echo "whoami.h found."
else
    d_whoami="$undef"
fi

: see how we will look up host name
echo " "
d_douname="$undef"
d_gethname="$undef"

if $contains '^gethostname$' libc.list >/dev/null 2>&1 ; then
    echo "gethostname() found."
    d_gethname="$define"
    ans=gethostname
elif xenix; then
    if $test -n "$uname"; then
    u_name=`$uname -n`
    else
    u_name=
    fi
    if $test -n "$line"; then
    if $test -r /etc/systemid; then
        s_name=`$line < /etc/systemid`
    else
        s_name=
    fi
    else
    s_name=
    fi
    if $test -n "$u_name"; then
    if $test "$u_name" = "$s_name"; then
        cat <<EOM
On Xenix, UUCP uses the name found in /etc/systemid, while uname()
returns the name compiled into the operating system via configure.
Elm needs the UUCP name, and currently these two match.  However, they
need not match.  Be sure to always keep these two names in sync.
Since they match, Elm will not consider that the Xenix uname function
is broken.  However, if you are not always able to make them
match, answer the compile in hostname question Yes.
EOM
        if $contains '^uname$' libc.list >/dev/null 2>&1 ; then
        echo "uname() found."
        d_douname="$define"
        ans=uname
        fi
    else
        cat <<EOM
On Xenix, UUCP uses the name found in /etc/systemid, while uname()
returns the name compiled into the operating system via configure.
Your /etc/systemid file contains $s_name.
But uname returns $u_name.
Since Elm needs the UUCP name, and currently these two do not match,
Elm will assume Xenix uname() is broken.
EOM
    fi
    else
    cat <<EOM
On Xenix, UUCP uses the name found in /etc/systemid, while uname()
returns the name compiled into the operating system via configure.
Elm needs the UUCP name, and currently the compiled in name is undefined.
Since mail needs the UUCP name, and these two need not match, Elm will
assume Xenix uname() is broken.
EOM
    fi
elif $contains '^uname$' libc.list >/dev/null 2>&1 ; then
    echo "uname() found."
    d_douname="$define"
    ans=uname
fi

case "$d_douname$d_gethname" in
*define*)
    case "$ign_hname" in
    '')    case "$d_host_comp" in
    "$define") dflt=y;;
    *)  dflt=n;;
    esac;;
    y)  dflt=y;;
    *)  dflt=n;;
    esac
    cat <<EOM

Every now and then someone has a $ans() that lies about the hostname
but can't be fixed for political or economic reasons.  Would you like to
EOM
    rp="pretend $ans() isn't there and maybe compile in the hostname? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) ign_hname=y
    d_douname="$undef"
    d_gethname="$undef"
    d_host_comp="$define"
    $echo $n "Okay... $c"
    ;;
    *)    ign_hname=n
    d_host_comp="$undef"
    ;;
    esac
    ;;
*)
    $cat <<EOT

There is no gethostname() or uname() on this system.  The hostname will
have to be compiled in.  It can be overridden in the global elm.rc file
in the library directory to specify hostname, hostfullname and hostdomain.
EOT
    d_host_comp="$define"
    ;;
esac

: see if errlst.o is in the lib.
echo " "
case "$d_errlst" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)       if $contains '^errlst$' libc.list >/dev/null 2>&1 ; then
        echo "errlst object found, will attempt to use systems"
        echo "sys_nerr and sys_errlist"
        dflt=y
        elif $contains '^sys_errlist$' libc.list >/dev/null 2>&1 ; then
        echo "sys_errlist found, will attempt to use systems"
        echo "sys_nerr and sys_errlist"
        dflt=y
        else
        echo "neither errlst object nor sys_errlist found, $package will use its own"
        dflt=n
        fi;;
esac

cat <<EOM

Elm would like to use the systems definitions of the error messages for system
errors.  These are usually contained in the global variables sys_errlist[] and
sys_nerr.  If these do not exist, there is a standard list built into Elm.

EOM

rp="Does the system support the sys_errlist[] global variable? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
    y*) d_errlst="$define";;
    *)  d_errlst="$undef" ;;
esac

: see if fstruncate exists
set ftruncate d_ftruncate
eval $inlibc
: see if getopt exists
set getopt d_getopt
eval $inlibc

: see if strings.h is in /usr/include or /usr/include/sys
echo " "
strings=`loc string.h "" /usr/include $includepath`
if $test -z "$strings"; then
    strings=`loc strings.h "" /usr/include $includepath`
fi
while $test -z "$strings"; do
    echo " "
    dflt=''
    rp="What is the full path name of the include file directory? []"
    $echo $n "$rp $c"
    . myread
    includepath=`filexp $ans`
    if $test -d "$includepath"; then
        strings=`loc string.h "" /usr/include $includepath`
        if $test -z "$strings"; then
            strings=`loc strings.h "" /usr/include $includepath`
        fi
        if $test -z "$strings"; then
            $cat <<EOM

Include file string.h or strings.h not found in $includepath.
Elm requires string.h on USG type systems or strings.h on BSD type
systems.  Please specify the directory where one of these files can
be found.
EOM
        fi
    else
        echo "Directory $includepath not found"
    fi
done

strings_f=`$expr "$strings" : ".*/\(.*\)"`
if $test "$strings_f" = "string.h"; then
    d_strings="$undef"
    echo "Using string.h instead of strings.h"
else
    d_strings="$define"
    echo "Using strings.h instead of string.h"
fi
pwdinsys=`loc pwd.h "" /usr/include $includepath`
if $test -z "$pwdinsys"; then
    d_pwdinsys="$define"
else
    d_pwdinsys="$undef"
fi

: index or strcpy
echo " "
case "$d_index" in
n) dflt=n;;
*) dflt=y;;
esac
if $contains '^index$' libc.list >/dev/null 2>&1 ; then
    if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then
    if $contains strchr "$strings" >/dev/null 2>&1 ; then
        if $contains index "$strings" >/dev/null 2>&1 ; then
#            has index, strchr, and index and strchr in strings.h
        echo "Your system has both index() and strchr().  Shall I use"
        rp="index() rather than strchr()? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
            n*) d_index="$define" ;;
            *)  d_index="$undef" ;;
        esac
        else
#            has index, strchr, and strchr in strings.h
        d_index="$define"
            echo "strchr() found."
        fi
    else
#            has index, strchr, and no strchr in strings.h
        d_index="$undef"
        echo "index() found."
    fi
    else
#            has only index, no strchr, strings.h is a moot point
    d_index="$undef"
    echo "index() found."
    fi
else
    if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then
    d_index="$define"
    echo "strchr() found."
    else
    echo "No index() or strchr() found!"
    d_index="$undef"
    fi
fi

case "$d_mmdf" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    if $test -f "$submit"; then
        dflt=y
    else
        dflt=n
    fi
    ;;
esac
$cat <<EOM

Some systems run MMDF as their Mail Transport Agent.  MMDF uses a
different way of delimiting messages in the mailbox files.  Other
systems don't run MMDF but use the MMDF separator in their mailbox
files.  The MMDF separator is usually a series of four Control A's.
$package needs to know if this system uses the MMDF style message
separator in its mailbox files.

EOM
rp="Does this system use MMDF style message separator? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_mmdf="$define";;
*)  d_mmdf="$undef";;
esac

: determine mail delivery agent for Elm to use
case "$mailer" in
'')
    if $test "$d_mmdf" = "$define" -a -f "$execmail"; then
     dflt="$execmail"
    elif $test "$d_mmdf" = "$define" -a -f "$submit"; then
    dflt="$submit"
    elif $test -f "$sendmail"; then
    dflt="$sendmail"
    elif $test -f "$rmail"; then
    dflt="$rmail"
    elif $test -f /bin/mail; then
    dflt=/bin/mail
    else
    dflt=$mail
    fi
    ;;
*)  dflt="$mailer";;
esac
cont=true
while $test "$cont" ; do
    echo " "
    echo "Give the full path name of the program used to deliver mail on your"
    $echo $n "system: [$dflt] $c"
    rp="Preferred mail delivery agent: [$dflt]"
    . myread
    mailer="$ans"
    if $test -f "$ans"; then
    cont=''
    else
    if $test "$fastread" = yes; then
        dflt=y
    else
        dflt=n
    fi
    echo "Mail delivery agent $ans doesn't exist."
    rp="Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done
if $test "$mailer" != "$sendmail"; then
    sendmail=''
fi
if $test "$mailer" != "$submit"; then
    submit=''
fi
if $test "$mailer" != "$execmail"; then
    execmail=''
fi

: check for internet mailer
case "$d_internet" in
"$define")    dflt=y;;
"$undef")    dflt=n;;
*)    if $test -f "$sendmail"; then
        dflt=y
    elif $test -f "$submit"; then
        dflt=y
    elif $test -f "$smail"; then
        dflt=y
    else
        dflt=n
    fi
    ;;
esac
$cat <<EOM

Some newer mailers can deliver mail to addresses of the INTERNET
persuasion, such as [e-mail].  Other older mailers require the
complete uucp ! path to the destination to be specified in the address.
EOM
rp="Does your mailer understand INTERNET addresses? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_internet="$define";;
*)  d_internet="$undef";;
esac

: check for ispell spelling checker
case "$d_ispell" in
"$define")    dflt=y
        dflt_path=$ispell_path
        dflt_options=$ispell_options
        ;;
"$undef")    dflt=n
        dflt_path=
        dflt_options=
        ;;
*)    if $test -n "$ispell" -a "$ispell" != "ispell"; then
        dflt=y
        dflt_path=$ispell
        dflt_options='-x'
    else
        dflt=n
        dflt_path=
        dflt_options=
    fi
    ;;
esac
$cat <<EOM

Elm has the ability to place a call to the GNU ispell spelling checker
on its post-message-entry/pre-message-send menu.
EOM
if $test -n "$dflt_path"; then
    $echo "Configure has found ispell as $dflt_path"
else
    $echo "Configure was unable to find ispell"
fi

$echo $n "Should Elm add the ispell option to the pre-send menu? [$dflt] $c"
rp="Should Elm add the ispell option to the pre-send menu? [$dflt]"
. myread
case "$ans" in
y*) d_ispell="$define";;
*)  d_ispell="$undef";;
esac

case "$d_ispell" in
"$undef")    ispell_path=
        ;;
"$define")    cont=true
        dflt=$dflt_path
        while $test "$cont" ; do
            echo " "
            echo "Give the name of the ispell program on your"
            $echo $n "system: [$dflt] $c"
            rp="Ispell path name: [$dflt]"
            . myread
            ispell_path=$ans;
            if $test -f "$ans"; then
            cont=''
            else
            lookup=`loc "$ans" "" . $pth`
            if $test -f "$lookup"; then
                cont=''
                ispell_path=$lookup
            else
                if $test "$fastread" = yes; then
                dflt=y
                else
                dflt=n
                fi
                echo "spelling program $ans doesn't exist."
                rp="Use that name anyway? [$dflt]"
                $echo $n "$rp $c"
                . myread
                dflt=''
                case "$ans" in
                y*) cont='';;
                esac
            fi
            fi
        done

        dflt=$dflt_options
        $echo $n "What options should Elm use with $ispell_path: [$dflt] $c"
        rp="$ispell_path options: [$dflt]"
        . myread
        ispell_options=$ans;
        ;;
esac
: see if locale.h is in /usr/include
echo " "
dflt=`loc locale.h "" /usr/include $includepath`
if $test -z "$dflt"; then
    echo "locale.h not found, $package will not call setlocale"
    d_locale=$undef
else
    echo "locale.h found, $package will call setlocale"
    d_locale=$define
fi

: see if nl_types.h is in /usr/include
echo " "
dflt=`loc nl_types.h "" /usr/include $includepath`
if $test -z "$dflt"; then
    echo "nl_types.h not found, $package will use its own"
    d_nl_types=$undef
else
    echo "nl_types.h found, $package will include the systems version"
    d_nl_types=$define
fi

: see if catgets is in the libraries
set catgets d_msgcat
eval $inlibc

if $test "$d_msgcat" = "$define"; then
    echo "Message catalog routines found"
    cat <<EOM

The system has the message catalog routines in its library.  These routines
are new, and on some systems do not function properly. Also, $package expects
that these routines are X/Open compliant.

EOM

    case "$d_usenls" in
    "$define") dflt=y;;
    "$undef")  dflt=n;;
    *)       dflt=n;;
    esac

    rp="Should $package use its own routines instead of the systems NLS routines? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
        y*) d_usenls="$define"
        d_nl_types=$undef;;
        *)  d_usenls="$undef";;
    esac
else
    echo "Message catalog routines not found, $package will use its own"
    if $test "$d_usenls" = ""; then
        d_usenls="$define"
    fi
fi

: see if stdlib.h is in includepath
echo " "
i_stdlib=`loc stdlib.h "" /usr/include $includepath`
if $test -n "$i_stdlib"; then
    echo "Found <stdlib.h>"
    i_stdlib="$define"
else
    echo "Did not find <stdlib.h>"
    i_stdlib="$undef"
fi

: see if malloc is void * or char *
echo " "
case "$d_mallocvoid" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    if $test "$i_stdlib" = "$define" ; then
        cat >usemymalloc.c <<'END'
#include <stdlib.h>
void *malloc();
END
    else
        cat >usemymalloc.c <<'END'
#include <malloc.h>
void *malloc();
END
        fi
    if $cc $ccflags -c usemymalloc.c >/dev/null 2>&1; then
        d_mallocvoid=$define
        echo "Your system wants malloc to return void *, it would seem."
    else
        d_mallocvoid=$undef
        echo "Your system wants malloc to return char *, it would seem."
    fi
    ;;
esac
echo " "

case "$d_mboxedit" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    dflt=n;;
esac
$cat <<EOM

A lot of sites that install the Elm Mail System find that the function
E)dit mailbox from within Elm is dangerous and confusing.  If you choose,
you can instead disable that function, with the program being slightly
smaller and presenting an appropriate error message to the user if they
try to E)dit their mailbox.

EOM
rp="Would you like to enable the E)dit Mailbox function? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_mboxedit="$define";;
*)  d_mboxedit="$undef";;
esac

: see if memcpy exists
set memcpy d_memcpy
eval $inlibc

: determine if MIME should be compiled in

case "$d_mime" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)       if $test -f "$metamail"; then
        $cat <<EOM

I've found the metamail program out there, I assume you want support for
MIME (Multipurpose Internet Mail Extension, RFC 1341).

EOM
        dflt=y
       else
        dflt=n
       fi;;

esac
$cat <<EOM

MIME allows for sending and receiving of Messages compliant to the
Multipurpose Internet Mail Extension (RFC 1341). MIME provides a way to
attach binary, graphic, audio, video, postscript and other files. MIME
doesn't necessarily need graphics capabilities on your display, but its
useful.

If you have installed Nathaniel Borenstein's metamail package for
displaying MIME messages, elm can make use of it.  If you didn't
have metamail installed you might want to obtain a copy of it.  The
most recent version is on thumper.bellcore.com [128.96.41.1], or ask
the archie servers for the nearest site.

Compiling elm even with MIME support enabled would not depend on the
metamail package, but you would not be able to use nearly all of the
MIME features as long as you don't have metamail installed.  Metamail
with its companion programs (mmencode) must be installed somewhere in
the search path, usually /usr/local/bin.



EOM

rp="Should support for MIME be compiled in? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_mime="$define";;
*)  d_mime="$undef";;
esac


case "$defcharset" in
'') defcharset="US-ASCII";;
*) defcharset="$defcharset";;
esac

case "$defdispcharset" in
'') defdispcharset="$defcharset";;
*) defdispcharset="$defdispcharset";;
esac

case "$defencoding" in
'') if $test "$defcharset" = "US-ASCII"; then
        defencoding="7bit"
    else
        defencoding="8bit"
    fi;;
*) defencoding="$defencoding";;
esac

if $test "$d_mime" = "$define"; then
    dflt="$defcharset"
cat <<EOM

The Default Character Set which should be used on outgoing messages.
Most sites would use US-ASCII.

EOM
    rp="Default Character Set for MIME Content-type text? [$dflt]"
    $echo $n "$rp $c"
    . myread
    defcharset="$ans"

    dflt="$defdispcharset"
    $cat <<EOM

The Character Set which your terminals support. You could set this
to one of the ISO-8859 charsets, even if you set the default for
the Text Messages to US-ASCII, as the ISO-8859 charsets could display
US-ASCII as well. For a X-Windows environment, ISO-8859-1 would be
a convenient value.

EOM
    rp="Default Character Set which could be displayed [$dflt]"
    $echo $n "$rp $c"
    . myread
    defdispcharset="$ans"

    dflt="$defencoding"
    $cat <<EOM
Default Content-Transfer-Encoding for MIME Content-type text.
If you are using the default US-ASCII charset, you should use
7bit encoding. But if you are using some other national character
set, 8bit is recommended, unless you are using a 7bit character set.
For 8bit encoding your transport paths should be 8bit clean, which
is not true all over the world. base64 or quoted-printable aren't
yet supported for the default Content-Transfer-Encoding.

EOM
    rp="Default Content-Transfer-Encoding for MIME Content-type text? [$dflt]"
    $echo $n "$rp $c"
    . myread
    defencoding="$ans"
fi

: see if mkdir exists
set mkdir d_mkdir
eval $inlibc

: ask about newmail running in the background automatically
case "$d_newauto" in
"$define")    dflt=y;;
"$undef")    dflt=n;;
*)        dflt=y;;
esac
$cat <<EOM

Newmail (Elm's utility to check for incoming mail) can be configured to
either run as a foreground process or as a process that automatically
forks and runs in the background.

EOM
rp="Should newmail automatically run in the background? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_newauto="$define";;
*)  d_newauto="$undef";;
esac


if $test -f "$sendmail"; then
    echo "You're running sendmail.  Setting noaddfrom, nocheckvalid, usedomain"
    d_noaddfrom="$define"
    d_nocheckvalid="$define"
    d_usedomain="$undef"
elif $test -f "$submit"; then
    echo "You're running submit with MMDF.  Setting noaddfrom, nocheckvalid, usedomain"
    d_noaddfrom="$undef"
    d_nocheckvalid="$define"
    d_usedomain="$define"
elif $test -f "$execmail" -a "$d_mmdf" = "$define"; then
    echo "You're running execmail with MMDF.  Setting noaddfrom, nocheckvalid, usedomain"
    d_noaddfrom="$undef"
    d_nocheckvalid="$define"
    d_usedomain="$undef"
else
    case "$d_nocheckvalid" in
    "$define") dflt=n;;
    "$undef")  dflt=y;;
    *)       dflt=y;;
    esac

    $cat << EOM

Since you're not running sendmail or submit, should I check local user entered
addresses against the valid mailboxes on this system?
EOM

    echo " "
    rp="Would you like to check local addresses? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_nocheckvalid="$undef";;
    *)  d_nocheckvalid="$define";;
    esac

    if $test "$d_internet" = "$define"; then
        case "$d_usedomain" in
        "$define") dflt=y;;
        "$undef")  dflt=n;;
        *)       dflt=y;;
        esac

        $cat <<EOM

Are you running a machine where you want to have a domain name appended
to the hostname on outbound mail?
EOM
        echo " "
        rp="Would you like the domain name appended? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) d_usedomain="$define";;
        *)  d_usedomain="$undef";;
        esac
    else
        d_usedomain="$undef"
        $cat <<EOM

Since your mailer does not understand internet addresses, I'm undefining
usedomain so your domain name will not be appended to the hostname on
outbound mail.

EOM
    fi

    case "$d_noaddfrom" in
    "$define") dflt=y;;
    "$undef")  dflt=n;;
    *)       dflt=n;;
    esac
    echo " "
    rp="Does your mailer add the From: header for you? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_noaddfrom="$define";;
    *)  d_noaddfrom="$undef";;
    esac
fi

case "$d_noxheader" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    dflt=n;;
esac
$cat <<EOM

Some sites do not like to see the mail header "X-mailer:" in outgoing
messages.  If you choose, you may disable these headers.  However, it
is strongly urged to leave these headers in the mail to assist in
tracking down problems.

EOM
rp="Would you like to disable the X-mailer: headers? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_noxheader="$define";;
*)  d_noxheader="$undef";;
esac

: check for "kill(pid, 0)"
echo " "
case "$d_pidcheck" in
"$define")    ;;
"$undef")    ;;
*)
        echo "Checking to see if kill(pid, 0) works..."
        $cat >try.c <<'EOCP'
main()
    {
    int    pid, status0, status9;

    if ((pid = fork()) == 0)
        {
        sleep(30);
        exit(1);
        }
    status0 = kill(pid, 0);
    status9 = kill(pid, 9);
    exit(status0 == status9);
    }
EOCP
        if $cc try.c -o try >/dev/null 2>&1 ; then
        if try >/dev/null 2>&1 ; then
            echo "Your system does not support kill(pid, 0)..."
            d_pidcheck="$undef"
        else
            d_pidcheck="$define"
            echo "Your system supports kill(pid, 0)..."
        fi
        else
        echo "Your system does not support kill(pid, 0)..."
        d_pidcheck="$undef"
        fi
        $rm -f try.c try.o try
    ;;
esac

: see if /usr/include/sys/ptem.h exists, making it a possible System V/386
d_ptem="$undef"
if usg ; then
    echo " "
    echo "Checking to see if your system has sys/ptem.h..."
    if $test -f /usr/include/sys/ptem.h ; then
        echo "Yep, it does..."
        if "$contains" "struct winsize" /usr/include/sys/ptem.h >/dev/null 2>&1 ; then
        d_ptem="$define"
        echo "  and it has the needed structure."
    fi
    fi
fi

: see how we invoke the C preprocessor
echo " "
echo "Now, how can we feed standard input to your C preprocessor..."
cat <<'EOT' >testcpp.c
#define ABC abc
#define XYZ xyz
ABC.XYZ
EOT
echo 'Maybe "'"$cc"' -E" will work...'
$cc -E <testcpp.c >testcpp.out 2>&1
: try to force gcc preprocessor if that is the compiler they are using
case $? in
0) cppstdin="$cc -E";;
*) case "$cc" in
    *gcc*)
    cd ..
    echo 'Trying (cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c)'
    echo 'cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c' >cppstdin
    chmod 755 cppstdin
    cppstdin=`pwd`/cppstdin
    cppminus='';
    cd UU
    $cppstdin <testcpp.c >testcpp.out 2>&1
    ;;
    esac
    ;;
esac
if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
    echo "Yup, it does."
    cppstdin="$cc -E"
    cppminus='';
else
    echo 'Nope, maybe "'$cpp'" will work...'
    $cpp <testcpp.c >testcpp.out 2>&1
    if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
    echo "Yup, it does."
    cppstdin="$cpp"
    cppminus='';
    else
    echo 'No such luck...maybe "'$cpp' -" will work...'
    $cpp - <testcpp.c >testcpp.out 2>&1
    if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
        echo "It works!"
        cppstdin="$cpp"
        cppminus='-';
    else
        echo 'Nixed again...maybe "'"$cc"' -E -" will work...'
        $cc -E - <testcpp.c >testcpp.out 2>&1
        if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
        echo "Hooray, it works!  I was beginning to wonder."
        cppstdin="$cc -E"
        cppminus='-';
        else
        echo 'Nope...maybe "'"$cc"' -P" will work...'
        $cc -P <testcpp.c >testcpp.out 2>&1
        if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
            echo "Yup, that does."
            cppstdin="$cc -P"
            cppminus='';
        else
            echo 'Nope...maybe "'"$cc"' -P -" will work...'
            $cc -P - <testcpp.c >testcpp.out 2>&1
            if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
            echo "Yup, that does."
            cppstdin="$cc -P"
            cppminus='-';
            else
            echo 'Hmm...perhaps you already told me...'
            case "$cppstdin" in
            '') ;;
            *) $cppstdin $cppminus <testcpp.c >testcpp.out 2>&1;;
            esac
            if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
                echo "Hooray, you did!  I was beginning to wonder."
            else
                echo 'Uh-uh.  Time to get fancy...'
                cd ..
                echo 'Trying (cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c)'
                echo 'cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c' >cppstdin
                chmod 755 cppstdin
                cppstdin=`pwd`/cppstdin
                cppminus='';
                cd UU
                $cppstdin <testcpp.c >testcpp.out 2>&1
                if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
                echo "Eureka!."
                else
                dflt=blurfl
                $echo $n "No dice.  I can't find a C preprocessor.  Name one: $c"
                rp='Name a C preprocessor:'
                . myread
                cppstdin="$ans"
                $cppstdin <testcpp.c >testcpp.out 2>&1
                if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
                    echo "OK, that will do."
                else
                    echo "Sorry, I can't get that to work.  Go find one."
                    exit 1
                fi
                fi
            fi
            fi
        fi
        fi
    fi
    fi
fi
rm -f testcpp.c testcpp.out

: get C preprocessor symbols handy
echo " "
echo $attrlist | $tr ' ' '\012' >Cppsym.know
$cat <<EOSS >Cppsym
$startsh
case "\$1" in
-l) list=true
    shift
    ;;
esac
unknown=''
case "\$list\$#" in
1|2)
    for sym do
    if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then
        exit 0
    elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then
        :
    else
        unknown="\$unknown \$sym"
    fi
    done
    set X \$unknown
    shift
    ;;
esac
case \$# in
0) exit 1;;
esac
echo \$* | $tr ' ' '\012' | $sed -e 's/\(.*\)/\\
#ifdef \1\\
exit 0; _ _ _ _\1\\     \1\\
#endif\\
/' >/tmp/Cppsym\$\$
echo exit 1 >>/tmp/Cppsym\$\$
$cppstdin $cppminus </tmp/Cppsym\$\$ >/tmp/Cppsym2\$\$
case "\$list" in
true) awk 'NF > 5 {print substr(\$6,2,100)}' </tmp/Cppsym2\$\$ ;;
*)
    sh /tmp/Cppsym2\$\$
    status=\$?
    ;;
esac
$rm -f /tmp/Cppsym\$\$ /tmp/Cppsym2\$\$
exit \$status
EOSS
chmod +x Cppsym
$eunicefix Cppsym
echo "Your C preprocessor defines the following symbols:"
Cppsym -l $attrlist >Cppsym.true
cat Cppsym.true
rmlist="$rmlist Cppsym Cppsym.know Cppsym.true"

: see if there is a putenv
set putenv d_putenv
eval $inlibc

: get remove at last flag and number of lock attempts
$cat <<EOM

The next pair of questions have to do with what to do when another
program has locked a mailbox...

First, how many times should the Elm check for the removal of the lock
file before giving up?
EOM

case "$maxattempts" in
    '') dflt=6;;
    *)  dflt=$maxattempts;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Number of lock attempts: [$dflt]"
    $echo $n "$rp $c"
    . myread
    maxattempts="$ans"
    if $test "$maxattempts" -lt 3 -o "$maxattempts" -gt 10 ; then
    echo "The recommended range is 3-10"
    odflt=$dflt
    dflt=n
    rp="Should I use your answer of $maxattempts lock attempts anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=$odflt
    case "$ans" in
    y*) cont='';;
    esac
    else
    cont=''
    fi
done

case "$d_remlock" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)       dflt=n;;
esac
echo " "
rp="Should it REMOVE the lock file after $maxattempts checks? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_remlock="$define";;
*)  d_remlock="$undef";;
esac

: see if rename exists
set rename d_rename
eval $inlibc

: determine where mail is spooled
case "$maildir" in
'')
    dflt=`loc . /usr/spool/mail /usr/spool/mail /var/mail /usr/mail`
    ;;
*)  dflt="$maildir"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where is yet-to-be-read mail spooled? [$dflt]"
    $echo $n "$rp $c"
    . myread
    maildir=`filexp "$ans"`
    if test -d $maildir; then
    cont=''
    else
    if $test "$fastread" = yes; then
        dflt=y
    else
        dflt=n
    fi
    rp="Directory $maildir doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

: determine the group of the mail directory and what group elm should use
mailgrp=`$ls -lgd $maildir/.`
mailgrp=`$expr "$mailgrp" : "[ld][rwxstS-]*[ 0123456789]*\(.*\)"`
: now mailgrp is either    user group size mon day time/year name
: or                       group size mon day time/year name
try1=`$expr "$mailgrp" : "[A-Za-z_0-9]* *\([A-Za-z_0-9]*\).*"`
try1a=`$expr "$try1" : "\([0-9]*\).*"`
if $test "$try1" = "$try1a"; then
    mailgrp=`$expr "$mailgrp" : "\([A-Za-z_0-9]*\).*"`
else
    mailgrp="$try1"
fi
case "$mailgrp" in
'')
    mailgrp=mail
    ;;
esac
echo " "
echo "Mail group is $mailgrp"

: ask about setgid running of Elm
case "$d_setgid" in
"$define")    dflt=y;;
"$undef")    dflt=n;;
*)        dflt=y;;
esac
cat <<EOM

Elm needs to be installed and run as a setgid program only if the mail
spool directory permissions do not allow world write access.  If your
mail spool directory has the permissions:

drwxrwxr-x  3 root     mail          512 Dec 24 17:20 /usr/mail

then Elm must be setgid to the same group as the mail spool directory
(in this case group mail).  However, if the spool permissions look
like:

drwxrwsrwt  2 root     staff         512 Dec 21 20:14 /usr/spool/mail

then Elm should not be installed or run as a setgid program.

EOM
rp="Am I going to be running as a setgid program? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_setgid="$define";;
*)  d_setgid="$undef";;
esac
case "$d_setgid" in
"$define")
    mailermode=2755
    cat <<EOM

Since Elm is being installed as a setgid program, it must be installed
by root, or a user able to set the setgid bit.

To provide better security, Elm can be configured to switch to the
privileged group of $mailgrp only when necessary to access mail folders.

Unfortunately, not all machines can switch between the real and effective
gid values.  If you are not sure of the capability of your machine, it
is suggested that you start with Elm configured to switch gid values and
if, when you run Elm it cannot set the lock for the mailbox, reconfigure
Elm to not use this feature.
EOM
    case "$d_savegrpmboxid" in
    "$define")    dflt=y;;
    "$undef")    dflt=n;;
    *)        dflt=y;;
    esac
    echo " "
    rp="Can your system use setgid() to switch between the real and
effective gid values? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) d_savegrpmboxid="$define";;
    *)  d_savegrpmboxid="$undef";;
    esac
    ;;
*)  mailermode=755
    d_savegrpmboxid="$undef"
    ;;
esac

: see if BSD sigset exists
echo " "
set sigset d_sigset
eval $inlibc
: See if sigaction exists -- POSIX has highest priority in match
if $contains sigaction libc.list >/dev/null 2>&1; then
    echo "sigaction() found."
    d_sigaction="$define"
    d_sigset="$undef"
    d_sigvec="$undef"
    d_sigvectr="$undef"
else
    d_sigaction="$undef"
: see if sigvector exists -- since sigvec will match the substring
    if $contains sigvector libc.list >/dev/null 2>&1; then
        echo 'sigvector() found--you must be running HP-UX.'
        d_sigvectr="$define"
        d_sigvec="$define"
    else
: try the original name
        d_sigvectr="$undef"
        if $contains sigvec libc.list >/dev/null 2>&1; then
        echo 'sigvec() found.'
        d_sigvec="$define"
        else
        case "$d_sigset" in
        "$define")
               echo 'sigvec() not found';;
        *)
               echo 'sigvec() not found--race conditions with signals may occur.';;
        esac
            d_sigvec="$undef"
        fi
    fi
fi

: see if sigprocmask exists -- POSIX has highest priority in match
echo " "
if $contains sigprocmask libc.list >/dev/null 2>&1; then
    echo 'sigprocmask() found.'
    d_sigprocmask="$define"
    d_sigblock="$undef"
    d_sighold="$undef"
else
    d_sigprocmask="$undef"
: see if sigblock exists
    if $contains sigblock libc.list >/dev/null 2>&1; then
    echo 'sigblock() found.'
    d_sigblock="$define"
    d_sighold="$undef"
    else
: see if sighold exists
    d_sigblock="$undef"
    if $contains sighold libc.list >/dev/null 2>&1; then
        echo 'sighold() found.'
        d_sighold="$define"
    else
        echo 'No signal masking functions found.'
        d_sighold="$undef"
    fi
    fi
fi

: see if strspn exists
set strspn d_strspn
eval $inlibc

: see if strcspn exists
set strcspn d_strcspn
eval $inlibc

: see if strpbrk exists
set strpbrk d_strpbrk
eval $inlibc

: see if there is a strerror
set strerror d_strerror
eval $inlibc

: see if there is a strstr
set strstr d_strstr
eval $inlibc

: see if there is a strtok
set strtok d_strtok
eval $inlibc

case "$d_subshell" in
"$define") dflt=y;;
"$undef")  dflt=n;;
*)    dflt=y;;
esac
$cat <<EOM

Some sites wish to disable the usage of the shell escape from Elm.
If you choose, you can disallow subshells from within Elm.

Note: This only controls Elm's usage of the ! command.  Any pager or
editor could still allow subshells.

EOM
rp="Would you like to allow the ! command (subshells)? [$dflt]"
$echo $n "$rp $c"
. myread
case "$ans" in
y*) d_subshell="$define";;
*)  d_subshell="$undef";;
esac

: see if symlink exists
set symlink d_symlink
eval $inlibc

: see if tempnam exists
set tempnam d_tempnam
eval $inlibc

: see if this is a termio system
: Prefer POSIX-approved termios.h over all else.
:
echo " "
d_termios="$undef"
d_termio="$undef"
if $test -r /usr/include/termios.h ; then
    set tcsetattr d_termios
    eval $inlibc
fi
if $test "$d_termios" = "$define" ; then
    echo "You have POSIX termios.h... good!"
elif Cppsym pyr ; then
    if $test "`/bin/universe`" = "ucb" ; then
    if $test -r /usr/include/sgtty.h ; then
        echo "sgtty.h found."
    else
        echo "System is a pyramid, and universe is bsd,"
        echo "sgtty.h not found--you could have problems."
    fi
    else
    if $test -r /usr/include/termio.h ; then
        d_termio="$define"
        echo "termio.h found."
    else
        echo "System is a pyramid, and universe is att,"
        echo "termio.h not found--you could have problems."
    fi
    fi
elif bsd ; then
    if $test -r /usr/include/sgtty.h ; then
    echo "sgtty.h found."
    elif $test -r /usr/include/termio.h ; then
    d_termio="$define"
    echo "termio.h found."
    else
    echo "Neither termio.h nor sgtty.h found--you could have problems."
    fi
else
    if $test -r /usr/include/termio.h ; then
    d_termio="$define"
    echo "termio.h found."
    elif $test -r /usr/include/sgtty.h ; then
    echo "sgtty.h found."
    else
    echo "Neither termio.h nor sgtty.h found--you could have problems."
    fi
fi

: see if we should include time.h, sys/time.h, or both
cat <<'EOM'

Testing to see if we should include <time.h>, <sys/time.h> or both.
I'm now running the test program...
EOM
$cat >try.c <<'EOCP'
#ifdef I_TIME
#include <time.h>
#endif
#ifdef I_SYSTIME
#ifdef SYSTIMEKERNEL
#define KERNEL
#endif
#include <sys/time.h>
#endif
main()
{
    struct tm foo;
#ifdef S_TIMEVAL
    struct timeval bar;
#endif
    if (foo.tm_sec == foo.tm_sec)
    exit(0);
#ifdef S_TIMEVAL
    if (bar.tv_sec == bar.tv_sec)
    exit(0);
#endif
    exit(1);
}
EOCP
flags=''
for s_timeval in '-DS_TIMEVAL' ''; do
    for d_systimekernel in '' '-DSYSTIMEKERNEL'; do
    for i_time in '-DI_TIME' ''; do
        for i_systime in '-DI_SYSTIME' ''; do
        case "$flags" in
        '') echo "Trying $i_time $i_systime $d_systimekernel $s_timeval"
            if $cc $ccflags $i_time $i_systime $d_systimekernel $s_timeval \
                try.c -o try >/dev/null 2>&1 ; then
            set X $i_time $i_systime $d_systimekernel $s_timeval
            shift
            flags="$*"
            echo "Succeeded with $flags"
            fi
            ;;
        esac
        done
    done
    done
done
case "$flags" in
*SYSTIMEKERNEL*) d_systimekernel="$define";;
*) d_systimekernel="$undef";;
esac
case "$flags" in
*I_TIME*) i_time="$define";;
*) i_time="$undef";;
esac
case "$flags" in
*I_SYSTIME*) i_systime="$define";;
*) i_systime="$undef";;
esac
$rm -f try.c try

: see if there is a tzname
set tzname d_tzname
eval $inlibc

if $test "$d_tzname" = "$undef"; then
    set _tzname d_tzname
    eval $inlibc
fi

timeincl=""
if $test "$i_time" = define ; then
    timeincl="/usr/include/time.h"
fi
if $test "$i_systime" = define ; then
    timeincl="$timeincl /usr/include/sys/time.h"
fi
$cat $timeincl /dev/null | $cppstdin $cppminus > try.c 2>&1
if $contains 'tz_minuteswest' try.c > /dev/null 2>&1 ; then
    echo "You have tz_minuteswest defined in $timeincl rather than timezone."
    d_tz_min="$define"
else
    echo "You have timezone defined in $timeincl rather than tz_minuteswest."
    d_tz_min="$undef"
fi

#    try alternate test for nm commands that have problems
#    with data items being parsed


if Cppsym ultrix ; then
    echo "running Ultrix, will not test for tzname in $timeincl"
else
    if $test "$d_tzname" = "$undef"; then
    if $contains tzname try.c >/dev/null 2>&1 ; then
        echo "tzname found in $timeincl"
        d_tzname="$define"
    fi
    fi
fi

$rm -f try.c
: check for valid reply/to fields
case "$d_useembed" in
"$define")    dflt=y;;
"$undef")    dflt=n;;
*)            if $test "$d_internet" = "$define" ; then
                dflt=y
            else
                dflt=n
            fi
            ;;
esac
$cat <<EOM

One of the more annoying quirks of the UUCP network and various other
systems that interact with it are that everyone seems to have different
ideas about how to do routing, etc.  Therefore, a lot of times e-mail
will arrive from off site with corrupt, unusable "Reply-To:" and "From:"
fields.  This next question relates to whether your site is liable to
get mangled fields or not...

Does your site receive e-mail with valid "Reply-To:" and "From:" fields?

EOM
$echo $n "Use Reply-To: and From: addresses? [$dflt] $c"
rp="Are Reply-to: and From: addresses reliable? [$dflt]"
. myread
case "$ans" in
y*) d_useembed="$define";;
*)  d_useembed="$undef";;
esac

: see if getdomainname exists
if $contains "^getdomainname\$" libc.list > /dev/null 2>&1; then
    echo "getdomainname() found"
    d_domname=$define;
elif $contains "^getdomnm\$" libc.list > /dev/null 2>&1; then
    echo "getdomainname() found"
    d_domname=$define;
else
    echo "getdomainname() not found"
    d_domname=$undef
fi

case "$d_domname" in
"$define")    cat <<EOM

The getdomainname system call was found.  When running NIS, this usually
returns the NIS domain and not the mail domain.  If this is the case,
it should not be used to obtain the domain name, and the domain name
should be compiled into the code, and the global elm.rc file should
be used to override the compiled in value.

If the getdomainname call does return the correct mail domain, it can
be used.

EOM
        case "$d_usegetdom" in
        "$define")    dflt=y;;
        "$undef")    dflt=n;;
        *)        dflt=y;;
        esac
        echo " "
        rp="Should getdomainname() be used to obtain the mail domain? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) d_usegetdom="$define";;
        *)  d_usegetdom="$undef";;
        esac
        ;;
*)        d_usegetdom="$undef";;
esac;
: see if utime.h is in includepath
echo " "
i_utime=`loc utime.h "" /usr/include $includepath`
if $test -n "$i_utime"; then
    echo "Found <utime.h>"
    i_utime="$define"
    i_sysutime="$undef"
else
    i_sysutime=`loc sys/utime.h "" /usr/include $includepath`
    if $test -n "$i_sysutime"; then
        echo "Found <sys/utime.h>"
        i_utime="$undef"
        i_sys/utime="$define"
    else
        echo "Did not find <utime.h> or <sys/utime.h>"
        i_utime="$undef"
        i_sysutime="$undef"
    fi
fi

: check for utimbuf structure
echo " "
case "$d_utimbuf" in
"$define")    ;;
"$undef")    ;;
*)
: Pyramid passes the att compile test but still needs the definition
    if Cppsym pyr ; then
        if $test "`/bin/universe`" = "att" ; then
        d_utimbuf="$undef"
        echo "I will use my 'utimbuf' structure..."
            fi
    else
      if $test "$d_utimbuf" != "$define"; then
          echo "Checking to see if struct utimbuf exists."
          $cat >try.c <<'EOCP'
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#define far /* to keep Xenix from complaining */
#if (defined(BSD) || !defined(apollo))
#  include <sys/file.h>
#endif
#ifdef I_TIME
#  include <time.h>
#endif
#ifdef I_SYSTIME
#  include <sys/time.h>
#endif
#ifdef BSD
#  include <sys/timeb.h>
#endif
#ifdef I_UTIME
#  include <utime.h>
#endif
#ifdef I_SYSUTIME
#  include <sys/utime.h>
#endif

main()
{
struct utimbuf test;
test.actime = 0;
exit(1);
}
EOCP
          cflags=$ccflags
          if $test "$i_utime" = "$define"; then
          cflags="$cflags -DI_UTIME"
          fi
          if $test "$i_sysutime" = "$define"; then
          cflags="$cflags -DI_SYSUTIME"
          fi
          if $test "$i_time" = "$define"; then
          cflags="$cflags -DI_TIME"
          fi
          if $test "$i_systime" = "$define"; then
          cflags="$cflags -DI_SYSTIME"
          fi
          if $test "$d_bsd" = "$define"; then
          cflags="$cflags -DBSD"
          fi
          if $cc $cflags try.c -o try >/dev/null 2>&1 ; then
          d_utimbuf="$define"
          echo "You have the 'utimbuf' structure..."
          else
          echo "I will use my 'utimbuf' structure..."
          d_utimbuf="$undef"
          fi
          $rm -f try.c try.o try
        fi
    fi
    ;;
esac

: see if there is a vfork
if Cppsym sgi ; then
    d_vfork="$undef"
else
    set vfork d_vfork
    eval $inlibc
fi

: see if memory.h is in includepath
echo " "
i_memory=`loc memory.h "" /usr/include $includepath`
if $test -n "$i_memory"; then
    echo "Found <memory.h>"
    i_memory="$define"
else
    echo "Did not find <memory.h>"
    i_memory="$undef"
fi

: see if unistd.h is in includepath
echo " "
i_unistd=`loc unistd.h "" /usr/include $includepath`
if $test -n "$i_unistd"; then
    echo "Found <unistd.h>"
    i_unistd="$define"
else
    echo "Did not find <unistd.h>"
    i_unistd="$undef"
fi

: see if signal is declared as pointer to function returning int or void
echo " "
$cppstdin $cppflags < /usr/include/signal.h >$$.tmp
if $contains 'void.*[^s]signal' $$.tmp >/dev/null 2>&1 ; then
    echo "You have void (*signal())() instead of int."
    sigtype="void"
elif $contains 'int.*[^s]signal' $$.tmp >/dev/null 2>&1 ; then
    echo "You have int (*signal())() instead of void."
    sigtype="int"
elif $contains 'extern[     ]*[(\*]*signal' $$.tmp >/dev/null 2>&1 ; then
    echo "You have int (*signal())() instead of void."
    sigtype="int"
elif $contains 'sigfunc_t.*[^s]signal' $$.tmp >/dev/null 2>&1 ; then
    echo "You have sigfunc_t (*signal())() instead of int."
    sigtype="sigfunc_t"
elif $test -n "$sigtype"; then
    echo $n "As you already told me, signal handlers return $sigtype"
else
    echo "I can't determine whether signal handlers return void or int..."
    echo "I'm assuming they return void like ANSI and POSIX want."
    echo "If not, you will have to change sigtype to match the typedef"
    echo "used by the signal handlers.  Change it config.sh at the edit "
    echo "question at the end of Configure."
    sigtype="void"
fi
rm -f $$.tmp

: preserve RCS keywords in files with variable substitution, grrr
Log='$Log'
Header='$Header'

: see if there is a strftime
set strftime d_strftime
eval $inlibc

: get default batch subject
$cat <<EOM

Elm will provide a default subject for mail messages that are sent
in batch mode (redirected from a file.)
EOM

case "$defbatsub" in
    '') dflt='no subject (file transmission)';;
    *)  dflt="$defbatsub";;
esac
echo " "
rp="Default batch subject: [$dflt]"
$echo $n "$rp $c"
. myread
defbatsub="$ans"

: determine default editor
case "$defeditor" in
'')
    case "$vi" in
    */*) dflt="$vi";;
    *) dflt=/usr/ucb/vi;;
    esac
    ;;
*)  dflt="$defeditor"
    ;;
esac

$cat <<EOM

Elm must be configured with a default editor.  On most systems this may
be 'vi'.  If you prefer to use some other, easier editor enter it here.
You will be given a change to provide command line options to this
command in the next question.

EOM

cont=true
while $test "$cont" ; do
    echo " "
    rp="What is the default editor on your system? [$dflt]"
    $echo $n "$rp $c"
    . myread
    defeditor="$ans"
    if $test -f "$ans"; then
    cont=''
    else
    lookup=`loc "$ans" "" . $pth`
    if $test -f "$lookup"; then
        cont=''
        defeditor=$lookup
    else
        if $test "$fastread" = yes; then
            dflt=y
        else
            dflt=n
        fi
        echo "Editor $ans doesn't exist."
        rp="Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        dflt=''
        case "$ans" in
        y*) cont='';;
        esac
        fi
    fi
done

: determine the editor flags to use
$cat <<EOM

If this editor requires any options for proper use, specify them
here.  To specify no options, enter the word "none".  For example,
'pico' users will want to use the -t option.  This is the proper
place to specify that option.

EOM
dflt="$editoropts"
rp="What options should Elm use with $defeditor: [$dflt]"
$echo $n "$rp $c"
. myread
editoropts=$ans
case "$editoropts" in
'none') editoropts=''
     ;;
esac

: determine where public libraries go
case "$lib" in
'')
    dflt=`loc . "." /usr/local/lib /usr/lib /lib`
    ;;
*)  dflt="$lib"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where do you want to put the public libraries? [$dflt]"
    $echo $n "$rp $c"
    . myread
    lib="$ans"
    lib=`filexp $lib`
    if $test -d "$lib"; then
    cont=''
    else
    dflt=n
    rp="Directory $lib doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

: ask the preferred line printer and options for this system.
case "$linepr" in
'')
    if $test -f "$lp"; then
    dflt="$lp"
    elif $test -f "$lpr"; then
    dflt="$lpr"
    else
    dflt=
    fi
    ;;
*)  dflt="$linepr";;
esac

linepr='blurfl/dyick'
$cat <<EOM

Elm has an option to send messages to the printer.  This question
asks for the default spooler name.  You can also specify options to
the command by separating them from the command by at least one space.

EOM
cont=true
while $test "$cont" ; do
    rp="What print spooler do you prefer to use with Elm? [$dflt]"
    $echo $n "$rp $c"
    . myread
    linepr="$ans"
    ans=`$expr "$linepr" : "\([^ ]*\).*"`
    case "$ans" in
    /*)
    if $test -f "$ans"; then
        cont=''
    else
        if $test "$fastread" = yes; then
        dflt=y
        else
        dflt=n
        fi
        rp="File $ans doesn't exist.  Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) cont='';;
        esac
    fi
    ;;
    *)
        if $test "$fastread" = yes; then
        echo "The print spooler needs to be a full path name."
        echo "Using the current, possibly improper, value."
        cont=''
    else
        echo "Please give the full path name."
    fi
    ;;
    esac
done

: ask the preferred pager for this system.
case "$pager" in
'') dflt="builtin+";;
*)  dflt="$pager";;
esac

pager='blurfl/dyick'
echo " "
cont=true
while $test "$cont" ; do
    rp="What pager do you prefer to use with $package? [$dflt]"
    $echo $n "$rp $c"
    . myread
    pager="$ans"
    case "$ans" in
    builtin)
        cont=''
    ;;
    builtin+)
        cont=''
    ;;
    /*)
    if $test -f "$ans"; then
        cont=''
    else
        if $test "$fastread" = yes; then
        dflt=y
        else
        dflt=n
        fi
        rp="File $ans doesn't exist.  Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
        y*) cont='';;
        esac
    fi
    ;;
    *)
    echo "Please give the full path name."
    ;;
    esac
done

: find out which shell people like to use most
case "$prefshell" in
'')
    if $test -f /bin/ksh; then
    dflt='/bin/ksh'
    elif $test -f /bin/csh; then
    dflt='/bin/csh'
    else
    dflt='/bin/sh'
    fi
    ;;
*)  dflt="$prefshell";;
esac
cont=true
while $test "$cont" ; do
    echo " "
    echo "Give the full path name of the shell most people like to use on your"
    $echo $n "system: [$dflt] $c"
    rp="Preferred shell: [$dflt]"
    . myread
    prefshell=$ans
    if test -f $ans; then
    cont=''
    else
    if $test "$fastread" = yes; then
        dflt=y
    else
        dflt=n
    fi
    rp="File $ans doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    fi
done

: see if ar generates random libraries by itself
echo " "
echo "Checking how to generate random libraries on your machine..."
ar rc ran.a /dev/null
if ar ts ran.a >/dev/null 2>&1; then
    echo "ar appears to generate random libraries itself."
    orderlib=false
    ranlib=":"
else
    if test -f /usr/bin/ranlib; then
        ranlib=/usr/bin/ranlib
    elif test -f /bin/ranlib; then
        ranlib=/bin/ranlib
    fi

    if test -n "$ranlib"; then
        echo "your system has $ranlib; we'll use that."
        orderlib=false
    else
        echo "your system doesn't seem to support random libraries"
        echo "so we'll use lorder and tsort to order the libraries."
        orderlib=true
        ranlib=":"
    fi
fi

: determine the name of the tape device
rmttape=`loc rct0 "" /dev`
if $test -z "$rmttape"; then
    rmttape=`loc rmt0 "" /dev`
fi
if $test -z "$rmttape"; then
    rmttape=`loc rtp0 "unknown-remote-tape-unit" /dev`
fi
echo "remote tape drive is $rmttape"
echo " "
: where do we get termlib routines from
echo " "
case "$d_havetlib" in
"$define")
    echo "Termlib routines in '$termlib' from prior Configure run"
    ;;
*)
    ans=`loc libtermlib.a x $libpth`
    if $test "$ans" = x; then
        ans=`loc Slibtermlib.a x $libpth`
    fi
    case "$ans" in
    /usr/lib*|/usr/ccs/lib*|/lib*)
    termlib='-ltermlib'
    d_havetlib="$define"
    echo "Termlib library found."
    ;;
    /*)
    termlib="$ans"
    d_havetlib="$define"
    echo "Termlib library found."
    ;;
    *)
    ans=`loc libcurses.a x $libpth`
    if $test "$ans" = x; then
        ans=`loc Slibcurses.a x $libpth`
    fi
    case "$ans" in
    /*)
        ar t $ans >grimble
        if $contains tputs.o grimble >/dev/null 2>&1; then
        termlib='-lcurses'
        d_havetlib="$define"
        echo "Terminfo routines found in -lcurses library."
        else
        ans=x
        fi
        rm -f grimble
        ;;
    esac
    esac
    if $test "$ans" = x; then
    ans=`loc libtermcap.a x $libpth`
    if $test "$ans" = x; then
        ans=`loc Slibtermcap.a x $libpth`
    fi
    case "$ans" in
    /usr/lib*|/usr/ccs/lib*|/lib*)
        termlib='-ltermcap'
        d_havetlib="$define"
        echo "Termcap library found."
        ;;
    /*)
        termlib="$ans"
        d_havetlib="$define"
        echo "Termcap library found."
        ;;
    *)
        case "$termlib" in
        '')
        dflt=y
        rp="Your system appears to NOT have termlib-style routines.  Is this true? [$dflt]"
        $echo $n "$rp $c"
        . myread
        case "$ans" in
            n*|f*) d_havetlib="$define"
              echo "Then where are the termlib-style routines kept (specify either -llibname"
              $echo $n " or full pathname (~name ok))? $c"
              rp='Specify termlib:'
              . myread
              termlib=`filexp $ans`
              ;;
            *)    d_havetlib="$undef"
              termlib=''
              echo "You will have to play around with term.c then."
              ;;
        esac
        echo " "
        ;;
        *)  echo "You said termlib was $termlib before."
        ;;
        esac
        ;;
    esac
    fi
    ;;
esac
: determine where temporary files should go
case "$tmpdir" in
'')
    dflt=`loc . "." "/tmp /usr/tmp"`
    ;;
*)  dflt="$tmpdir"
    ;;
esac
if $test -d "$tmpdir" -a "$tmpdir" != ""; then
    $echo " "
    $echo "Temporary files will be put in the $tmpdir directory"
else
    cont=true
    while $test "$cont" ; do
        $echo " "
        rp="Where do you want to put the temporary files? [$dflt]"
        $echo $n "$rp $c"
        . myread
        tmpdir="$ans"
        tmpdir=`filexp $tmpdir`
        if $test -d "$tmpdir" -a "$tmpdir" != ""; then
        cont=''
        else
        if $test "$fastread" = yes; then
            dflt=y
        else
            dflt=n
        fi
        rp="Directory $tmpdir doesn't exist.  Use that name anyway? [$dflt]"
        $echo $n "$rp $c"
        . myread
        dflt=''
        case "$ans" in
        y*) cont='';;
        esac
        fi
    done
fi

: if pmake exists, allow its use for parallel make

if $test -f "$pmake" ; then
    case "$use_pmake" in
    n)  dflt=n;;
    *)  dflt=y;;
    esac

    $cat <<EOM

The executable file pmake was found on this system.  Usually this
file indicates a parallel make, which executes much faster.  Should
this system use the pmake command as its make command?

EOM
    rp="Does this system use pmake as its make? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    y*) use_pmake=y
        make="$pmake";;
    *)  use_pmake=n;;
    esac
else
    use_pmake=n
fi

: the "config.over" file can be used to patch configuration changes
if test -f ../config.over ; then
    echo " "
    echo "I have found a \"config.over\" file."
    dflt=y
    rp="Do you want to load the \"config.over\" file? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
        n*)    echo "OK, I'll ignore it."
        ;;
    *)    . ../config.over
        echo "Configuration override changes have been loaded from config.over."
        ;;
    esac
fi

: clean up one time files
for file in OneTime.PL* ; do
    if test -f "$file" ; then
        echo "Removing patch cleanup script $file . . ."
        rm -f $file
    fi
done

echo " "
echo "End of configuration questions."
echo " "

: create config.sh file
echo " "
if test -d ../UU; then
    cd ..
fi
echo "Creating config.sh..."
$spitshell <<EOT >config.sh
$startsh
# config.sh
# This file was produced by running the Configure script.

Log='$Log'
Header='$Header'
bin='$bin'
contains='$contains'
cppstdin='$cppstdin'
cppminus='$cppminus'
d_getopt='$d_getopt'
d_memcpy='$d_memcpy'
d_mkdir='$d_mkdir'
d_rename='$d_rename'
d_symlink='$d_symlink'
d_whoami='$d_whoami'
n='$n'
c='$c'
orderlib='$orderlib'
ranlib='$ranlib'
package='$package'
pager='$pager'
prefshell='$prefshell'
startsh='$startsh'
d_eunice='$d_eunice'
define='$define'
eunicefix='$eunicefix'
loclist='$loclist'
expr='$expr'
sed='$sed'
echo='$echo'
cat='$cat'
rm='$rm'
mv='$mv'
cp='$cp'
tail='$tail'
tr='$tr'
mkdir='$mkdir'
sort='$sort'
uniq='$uniq'
grep='$grep'
trylist='$trylist'
test='$test'
inews='$inews'
ispell='$ispell'
egrep='$egrep'
more='$more'
pg='$pg'
Mcc='$Mcc'
vi='$vi'
mailx='$mailx'
mail='$mail'
cpp='$cpp'
perl='$perl'
emacs='$emacs'
ls='$ls'
rmail='$rmail'
sendmail='$sendmail'
shar='$shar'
smail='$smail'
submit='$submit'
tbl='$tbl'
troff='$troff'
nroff='$nroff'
uname='$uname'
uuname='$uuname'
line='$line'
chgrp='$chgrp'
chmod='$chmod'
lint='$lint'
sleep='$sleep'
pr='$pr'
tar='$tar'
ln='$ln'
lpr='$lpr'
lp='$lp'
touch='$touch'
make='$make'
date='$date'
csh='$csh'
pmake='$pmake'
mips='$mips'
col='$col'
pack='$pack'
compress='$compress'
execmail='$execmail'
libswanted='$libswanted'
c_date='$c_date'
d_altcheck='$d_altcheck'
d_ascii='$d_ascii'
d_calendar='$d_calendar'
calendar='$calendar'
d_content='$d_content'
d_crypt='$d_crypt'
cryptlib='$cryptlib'
d_cuserid='$d_cuserid'
d_disphost='$d_disphost'
d_domname='$d_domname'
d_usegetdom='$d_usegetdom'
d_errlst='$d_errlst'
d_flock='$d_flock'
d_dotlock='$d_dotlock'
d_fcntlock='$d_fcntlock'
lock_dir='$lock_dir'
has_flock='$has_flock'
has_fcntl='$has_fcntl'
d_ftruncate='$d_ftruncate'
d_gethname='$d_gethname'
d_douname='$d_douname'
d_host_comp='$d_host_comp'
ign_hname='$ign_hname'
d_havetlib='$d_havetlib'
termlib='$termlib'
d_index='$d_index'
d_internet='$d_internet'
d_ispell='$d_ispell'
ispell_path='$ispell_path'
ispell_options='$ispell_options'
d_locale='$d_locale'
d_nl_types='$d_nl_types'
d_msgcat='$d_msgcat'
d_usenls='$d_usenls'
d_mallocvoid='$d_mallocvoid'
d_mboxedit='$d_mboxedit'
d_mime='$d_mime'
defencoding='$defencoding'
defcharset='$defcharset'
defdispcharset='$defdispcharset'
d_mmdf='$d_mmdf'
d_newauto='$d_newauto'
d_noaddfrom='$d_noaddfrom'
d_usedomain='$d_usedomain'
d_nocheckvalid='$d_nocheckvalid'
d_noxheader='$d_noxheader'
d_pidcheck='$d_pidcheck'
d_ptem='$d_ptem'
d_putenv='$d_putenv'
d_remlock='$d_remlock'
maxattempts='$maxattempts'
d_setgid='$d_setgid'
d_savegrpmboxid='$d_savegrpmboxid'
mailermode='$mailermode'
d_sigvec='$d_sigvec'
d_sigvectr='$d_sigvectr'
d_sigset='$d_sigset'
d_sighold='$d_sighold'
d_sigprocmask='$d_sigprocmask'
d_sigblock='$d_sigblock'
d_sigaction='$d_sigaction'
d_strcspn='$d_strcspn'
d_strspn='$d_strspn'
d_strpbrk='$d_strpbrk'
d_strerror='$d_strerror'
d_strftime='$d_strftime'
d_strings='$d_strings'
d_pwdinsys='$d_pwdinsys'
strings='$strings'
includepath='$includepath'
d_strstr='$d_strstr'
d_strtok='$d_strtok'
d_subshell='$d_subshell'
d_tempnam='$d_tempnam'
tempnamo='$tempnamo'
tempnamc='$tempnamc'
d_termio='$d_termio'
d_termios='$d_termios'
d_tz_min='$d_tz_min'
d_tzname='$d_tzname'
d_useembed='$d_useembed'
d_utimbuf='$d_utimbuf'
d_vfork='$d_vfork'
defbatsub='$defbatsub'
defeditor='$defeditor'
editoropts='$editoropts'
hostname='$hostname'
phostname='$phostname'
mydomain='$mydomain'
autohostname='$autohostname'
i_memory='$i_memory'
i_stdlib='$i_stdlib'
i_time='$i_time'
i_systime='$i_systime'
d_systimekernel='$d_systimekernel'
i_unistd='$i_unistd'
i_utime='$i_utime'
i_sysutime='$i_sysutime'
lib='$lib'
libc='$libc'
linepr='$linepr'
maildir='$maildir'
mailer='$mailer'
mailgrp='$mailgrp'
mansrc='$mansrc'
catmansrc='$catmansrc'
manext='$manext'
manext_choice='$manext_choice'
catmanext='$catmanext'
catmanext_choice='$catmanext_choice'
packed='$packed'
manroff='$manroff'
manroffopts='$manroffopts'
suffix='$suffix'
packer='$packer'
models='$models'
split='$split'
small='$small'
medium='$medium'
large='$large'
huge='$huge'
optimize='$optimize'
ccflags='$ccflags'
cppflags='$cppflags'
ldflags='$ldflags'
cc='$cc'
libs='$libs'
nametype='$nametype'
d_passnames='$d_passnames'
d_berknames='$d_berknames'
d_usgnames='$d_usgnames'
passcat='$passcat'
rmttape='$rmttape'
roff='$roff'
roffopts='$roffopts'
sigtype='$sigtype'
spitshell='$spitshell'
shsharp='$shsharp'
sharpbang='$sharpbang'
tmpdir='$tmpdir'
use_pmake='$use_pmake'
xencf='$xencf'
xenlf='$xenlf'
d_xenix='$d_xenix'
d_bsd='$d_bsd'
CONFIG=true
EOT

CONFIG=true

echo " "
dflt=''
fastread=''
echo "If you didn't make any mistakes, then just type a carriage return here."
rp="If you need to edit config.sh, do it as a shell escape here:"
$echo $n "$rp $c"
. UU/myread
case "$ans" in
'') ;;
*) : in case they cannot read
    eval $ans;;
esac
: if this fails, just run all the .SH files by hand
. ./config.sh

echo " "
echo "Doing variable substitutions on .SH files..."
set x `awk '{print $1}' <MANIFEST | $grep '\.SH'`
shift
case $# in
0) set x *.SH; shift;;
esac
if test ! -f $1; then
    shift
fi
for file in $*; do
    case "$file" in
    */*)
    dir=`$expr X$file : 'X\(.*\)/'`
    file=`$expr X$file : 'X.*/\(.*\)'`
    (cd $dir && . $file)
    ;;
    *)
    . $file
    ;;
    esac
done
if test -f config.h.SH; then
    if test ! -f config.h; then
    : oops, they left it out of MANIFEST, probably, so do it anyway.
    . config.h.SH
    fi
fi

if $contains '^depend:' Makefile >/dev/null 2>&1; then
    dflt=n
    $cat <<EOM

Now you need to generate make dependencies by running "make depend".
You might prefer to run it in background: "make depend > makedepend.out &"
It can take a while, so you might not want to run it right now.

EOM
    rp="Run make depend now? [$dflt]"
    $echo $n "$rp $c"
    . UU/myread
    case "$ans" in
    y*) make depend && echo "Now you must run a make."
    ;;
    *)  echo "You must run 'make depend' then 'make'."
    ;;
    esac
elif test -f Makefile; then
    echo " "
    echo "Now you must run a make."
else
    echo "Done."
fi

$rm -f kit*isdone
: the following is currently useless
cd UU && $rm -f $rmlist
: since this removes it all anyway
cd .. && $rm -rf UU
: end of Configure