Source Code 1992 March/Source_Code_CD-ROM_Walnut_Creek_March_1992.iso/usenet/altsrcs/2/2913/Configure

Text File | 1991-03-03 | 26.6 KB | 1,290 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'd
# suggest you cut out the prototypical config.h from the end of this
# file 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.)
#
# 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.
# Write to [e-mail] (Raphael Manfredi) and I will send you
# my version which slightly differs from the original written by
# Larry Wall.)

# $Id: Configure,v 2.0 91/02/19 15:48:32 ram Exp $

: save PATH defined by user
user_path=$PATH

: sanity checks
PATH='.:/bin:/usr/bin:/usr/local/bin:/usr/ucb:/usr/local:/usr/lbin'
PATH=$PATH:'/usr/5bin:/etc:/usr/gnu/bin:/usr/new:/usr/new/bin:/usr/nbin'
PATH=$PATH:'/sys5.3/bin:/sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/ucb'
PATH=$PATH:'/bsd4.3/usr/bin:/usr/bsd'
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

d_eunice=''
d_xenix=''
d_bsd=''
define=''
eunicefix=''
loclist=''
expr=''
awk=''
sed=''
echo=''
cat=''
chgrp=''
chmod=''
chown=''
rm=''
mv=''
cp=''
tail=''
tr=''
mkdir=''
sort=''
uniq=''
grep=''
trylist=''
test=''
inews=''
egrep=''
more=''
pg=''
Mcc=''
vi=''
mail=''
bison=''
cpp=''
perl=''
Log=''
Header=''
Id=''
bin=''
contains=''
defeditor=''
mansrc=''
manext=''
models=''
split=''
small=''
medium=''
large=''
huge=''
ccflags=''
ldflags=''
cc=''
cppflags=''
optimize=''
n=''
c=''
package=''
scriptdir=''
spitshell=''
shsharp=''
sharpbang=''
startsh=''
sysman=''
mailer=''
CONFIG=''
: set package name
package=kit

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
xlibpath='/usr/lib/386 /lib/386'
libpth='/usr/lib /usr/local/lib /usr/lib/large /lib '$xlibpth' /lib/large'
libpth=$libpth' /usr/lib/small /lib/small'
smallmach='pdp11 i8086 z8000 i80286 iAPX286'
rmlist='ark[1-9]isdone ark[1-9][0-9]isdone'
trap 'echo " "; rm -f $rmlist; exit 1' 1 2 3 15

: 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

if ls blurfl >/dev/null 2>&1; then
    if awk '' blurfl >/dev/null 2>&1; then
        check='cat'
    else
        check='awk ""'
    fi
else
    check='ls'
fi

: Now test for existence of everything in MANIFEST
if test -f ../MANIFEST; then
    echo "First let's make sure your kit is complete.  Checking..."
    : some grep do not return a proper exit status
    grep '^---' ../MANIFEST > .grepmani 2>/dev/null
    if test -s .grepmani; then
(cd ..; eval $check `awk '!/^.*\/$/{if (b) print $1}
/^---/{b=1}' MANIFEST` || kill $$) >/dev/null
    else
(cd ..; eval $check `awk '!/^.*\/$/{print $1}' MANIFEST` || kill $$) >/dev/null
    fi
    echo "Looks good..."
else
    echo "No MANIFEST found. Hope your kit is complete !"
fi
rm -f .grepmani

pth="/usr/ucb /bin /usr/bin /usr/local /usr/local/bin /usr/5bin"
pth=$pth" /usr/lbin /etc /usr/new /usr/new/bin /usr/nbin /usr/gnu/bin"
pth=$pth" /usr/plx /vol/local/bin /usr/lib /lib /usr/local/lib"
pth=$pth" /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/bin"
pth=$pth" /bsd4.3/usr/ucb /usr/bsd"
: add PATH from user
pth=$pth" "`echo $user_path | sed -e 's/:/ /g'`
inclwanted=''

: 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..."
    echo "#!/bin/echo hi" > try
    $eunicefix try
    chmod +x try
    try > today
    if $contains hi today >/dev/null 2>&1; then
    echo "It does."
    sharpbang='#!'
    else
    echo "#! /bin/echo 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
rm -f try today

: 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

: first determine how to suppress newline on echo command
echo " "
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 $n "The star should be here-->$c"
echo '*'
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 me ([e-mail])
know how I 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.
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*|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
chown
echo
expr
grep
rm
sed
"
trylist="
test
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="The star should be here-->"
    $echo $n "$rp$c"
    $echo "*"
    fi
    $rm -f foo1 foo2
    ;;
*)
    : cross your fingers
    echo=echo
    ;;
esac
rmlist="$rmlist loc"

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

: 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? (~name ok) [$dflt]"
    $echo $n "$rp $c"
    . myread
    bin="$ans"
    bin=`filexp $bin`
    if test -d $bin; then
    cont=''
    else
    dflt=n
    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

: determine where manual pages are on this system
echo " "
case "$sysman" in
    '') sysman=`loc . /usr/man/man1 /usr/man/man1 /usr/man/mann /usr/man/manl /usr/man/local/man1 /usr/man/u_man/man1 /usr/share/man/man1 /usr/catman/u_man/man1 /usr/man/l_man/man1 /usr/local/man/u_man/man1 /usr/local/man/l_man/man1 /usr/man/man.L`
    ;;
esac
if test -d "$sysman"; then
    echo "System manual is in $sysman."
fi

: make some quick guesses about what we are up against
echo " "
$echo $n "Hmm...  $c"
cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
if test `echo abc | tr a-z A-Z` = Abc ; then
    if $contains SIGTSTP foo >/dev/null 2>&1 ; then
    echo "Looks kind of like an USG system with BSD features, but we'll see..."
    else
    echo "Looks kind of like an USG system, but we'll see..."
    fi
    d_bsd="$undef"
    echo exit 1 >bsd
    echo exit 0 >usg
    echo exit 1 >v7
elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
    echo "Looks kind of like a BSD system, but we'll see..."
    d_bsd="$define"
    echo exit 0 >bsd
    echo exit 1 >usg
    echo exit 1 >v7
else
    echo "Looks kind of like a Version 7 system, but we'll see..."
    d_bsd="$undef"
    echo exit 1 >bsd
    echo exit 1 >usg
    echo exit 0 >v7
fi
case "$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
    eunicefix=unixtovms
    d_eunice="$define"
: it so happens the Eunice I know will not run shell scripts in Unix format
    ;;
*)
    echo " "
    echo "Congratulations.  You aren't running Eunice."
    eunicefix=':'
    d_eunice="$undef"
    echo "exit 1" >eunice
    ;;
esac
if test -f /xenix; then
    echo "Actually, this looks more like a XENIX system..."
    echo "exit 0" >xenix
    d_xenix="$define"
else
    echo " "
    echo "It's not Xenix..."
    echo "exit 1" >xenix
    d_xenix="$undef"
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
$eunicefix bsd usg v7 eunice venix
rm -f foo
rmlist="$rmlist bsd usg v7 eunice venix xenix"

: see what memory models we can support
case "$models" in
'')
    cat >pdp11.c <<'EOP'
main() {
#ifdef pdp11
    exit(0);
#else
    exit(1);
#endif
}
EOP
    cc -o pdp11 pdp11.c >/dev/null 2>&1
    if pdp11 2>/dev/null; then
        dflt='unsplit split'
    else
        ans=`loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
        case "$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
$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.
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/ld.1 >/dev/null 2>&1 || \
             $contains '\-i' $mansrc/cc.1 >/dev/null 2>&1; then
            dflt='-i'
        else
            dflt='none'
        fi;;
    *) dflt="$split";;
    esac
    rp="What flag indicates separate I and D space? [$dflt]"
    $echo $n "$rp $c"
    . myread
    case "$ans" in
    none) ans='';;
    esac
    split="$ans"
    unsplit='';;
*large*|*small*|*medium*|*huge*)
    case "$model" 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="$ans";;
    *) large='';;
    esac
    case "$model" 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 "$model" in
    *medium*) case "$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 "$model" in
    *small*) case "$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

: 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';;
    *) 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
if $contains 'LANGUAGE_C' /usr/include/signal.h >/dev/null 2>&1; then
    case "$dflt" in
    *LANGUAGE_C*);;
    *) dflt="$dflt -DLANGUAGE_C";;
    esac
fi
case "$dflt" in
'') dflt=none;;
esac
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 $flag in
        -D*|-I*) cppflags="$cppflags $flag";;
        esac
    done
    case "$cppflags" in
    *-*)  echo "(C preprocessor flags: $cppflags)";;
    esac
    ;;
esac

case "$ldflags" in
'') if venix; then
        dflt='-i -z'
    else
        dflt='none'
    fi
    ;;
*) dflt="$ldflags";;
esac
echo " "
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"

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

: determine the name of a reasonable mailer
case "$mailer" in
'')
    if $test -f /usr/lib/sendmail; then
    dflt="/usr/lib/sendmail -odi"
    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] $c"
    rp="Preferred mailer: [$dflt]"
    . myread
    mailer="$ans"
    set x $ans
    shift
    if test -f "$1"; then
    cont=''
    else
    dflt=n
    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

: determine where manual pages go
case "$mansrc" in
'')
    dflt="$sysman"
    ;;
*)  dflt="$mansrc"
    ;;
esac
cont=true
while $test "$cont" ; do
    echo " "
    rp="Where do the manual pages (source) go? (~name ok) [$dflt]"
    $echo $n "$rp $c"
    . myread
    mansrc=`filexp "$ans"`
    if test -d "$mansrc"; then
    cont=''
    else
    dflt=n
    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
case "$mansrc" in
*l)
    manext=l
    ;;
*n)
    manext=n
    ;;
*C)
    manext=C
    ;;
*)
    manext=1
    ;;
esac

: determine where public executables go
case "$scriptdir" in
'')
    dflt="$bin"
    : guess some guesses
    $test -d /usr/share/scripts && dflt=/usr/share/scripts
    $test -d /usr/share/bin && dflt=/usr/share/bin
    ;;
*)  dflt="$scriptdir"
    ;;
esac
cont=true
$cat <<EOM

Some installations have a separate directory just for executable scripts so
that they can mount it across multiple architectures but keep the scripts in
one spot.  You might, for example, have a subdirectory of /usr/share for this.
Or you might just lump your scripts in with all your other executables.

EOM
while $test "$cont" ; do
    rp="Where do you keep publicly executable scripts? (~name ok) [$dflt]"
    $echo $n "$rp $c"
    . myread
    scriptdir="$ans"
    scriptdir=`./filexp "$scriptdir"`
    if $test -d $scriptdir; then
    cont=''
    else
    case "$fastread" in
    yes) dflt=y;;
    *) dflt=n;;
    esac
    rp="Directory $scriptdir doesn't exist.  Use that name anyway? [$dflt]"
    $echo $n "$rp $c"
    . myread
    dflt=''
    case "$ans" in
    y*) cont='';;
    esac
    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.

d_eunice='$d_eunice'
d_xenix='$d_xenix'
d_bsd='$d_bsd'
define='$define'
eunicefix='$eunicefix'
loclist='$loclist'
expr='$expr'
awk='$awk'
sed='$sed'
echo='$echo'
cat='$cat'
chgrp='$chgrp'
chmod='$chmod'
chown='$chown'
rm='$rm'
mv='$mv'
cp='$cp'
tail='$tail'
tr='$tr'
mkdir='$mkdir'
sort='$sort'
uniq='$uniq'
grep='$grep'
trylist='$trylist'
test='$test'
inews='$inews'
egrep='$egrep'
more='$more'
pg='$pg'
Mcc='$Mcc'
vi='$vi'
mail='$mail'
bison='$bison'
cpp='$cpp'
perl='$perl'
Log='$Log'
Header='$Header'
Id='$Id'
bin='$bin'
contains='$contains'
defeditor='$defeditor'
mansrc='$mansrc'
manext='$manext'
models='$models'
split='$split'
small='$small'
medium='$medium'
large='$large'
huge='$huge'
ccflags='$ccflags'
ldflags='$ldflags'
cc='$cc'
cppflags='$cppflags'
optimize='$optimize'
n='$n'
c='$c'
package='$package'
scriptdir='$scriptdir'
spitshell='$spitshell'
shsharp='$shsharp'
sharpbang='$sharpbang'
startsh='$startsh'
sysman='$sysman'
mailer='$mailer'
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
. ./config.sh

echo " "
echo "Doing variable substitutions on .SH files..."
if test -f MANIFEST; then
    set x `awk '{print $1}' <MANIFEST | $grep '\.SH'`
else
    set x `find . -name "*.SH" -print`
fi
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