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Newsgroups: comp.sources.unix From: ram@eiffel.com (Raphael Manfredi) Subject: v25i052: kit - the ultimate mailing kit, Part04/04 Sender: sources-moderator@pa.dec.com Approved: vixie@pa.dec.com Submitted-By: ram@eiffel.com (Raphael Manfredi) Posting-Number: Volume 25, Issue 52 Archive-Name: kit/part04 #! /bin/sh # This is a shell archive. Remove anything before this line, then unpack # it by saving it into a file and typing "sh file". To overwrite existing # files, type "sh file -c". You can also feed this as standard input via # unshar, or by typing "sh <file", e.g.. If this archive is complete, you # will see the following message at the end: # "End of archive 4 (of 4)." # Contents: Configure # Wrapped by vixie@cognition.pa.dec.com on Thu Dec 19 21:18:31 1991 PATH=/bin:/usr/bin:/usr/ucb ; export PATH if test -f 'Configure' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'Configure'\" else echo shar: Extracting \"'Configure'\" $53615 characters$ sed "s/^X//" >'Configure' <<'END_OF_FILE' X#! /bin/sh X# X# If these # comments don't work, trim them. Don't worry about any X# other shell scripts, Configure will trim # comments from them for you. X# X# (If you are trying to port this package to a machine without sh, X# I would suggest you have a look at the prototypical config.h.SH file X# and edit it to reflect your system. Some packages may include samples X# of config.h for certain machines, so you might look for one of those.) X# X# Yes, you may rip this off to use in other distribution packages. This X# script belongs to the public domain and cannot be copyrighted. X# X# (Note: this Configure script was generated automatically. Rather than X# working with this copy of Configure, you may wish to get metaconfig. X# Write to ram@eiffel.com (Raphael Manfredi) and I will send you the X# latest revision of the dist package, which includes metaconfig.) X X# $Id: Configure,v 2.0.1.4 91/11/25 15:48:25 ram Exp $ X# X# Generated on Mon Nov 25 15:43:33 PST 1991 [metaconfig 2.8 PL11] X cat >/tmp/c1$$ <<EOF X ARGGGHHHH!!!!! X SCO csh still thinks true is false. Write to SCO today and tell them that next year Configure ought to "rm /bin/csh" unless they fix their blasted shell. :-) X X(Actually, Configure ought to just patch csh in place. Hmm. Hmmmmm. All we'd have to do is go in and swap the && and || tokens, wherever they are.) X X[End of diatribe. We now return you to your regularly scheduled programming...] XEOF cat >/tmp/c2$$ <<EOF X OOPS! You naughty creature! You didn't run Configure with sh! I will attempt to remedy the situation by running sh for you... XEOF X true || cat /tmp/c1$$ /tmp/c2$$ true || exec sh $0 X export PATH || cat /tmp/c2$$ export PATH || exec sh $0 rm -f /tmp/c1$$ /tmp/c2$$ X X: sanity checks PATH=".:$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:/bsd43/bin' export PATH X if test ! -t 0; then X echo "Say 'sh Configure', not 'sh <Configure'" X exit 1 fi X X(alias) >/dev/null 2>&1 && \ X echo "(I see you are using the Korn shell. Some ksh's blow up on Configure," && \ X echo "especially on exotic machines. If yours does, try the Bourne shell instead.)" X test -d UU || mkdir UU cd UU && rm -f * X case "$1" in X-d) shift; fastread='yes';; esac X d_eunice='' d_xenix='' d_bsd='' define='' eunicefix='' Mcc='' awk='' bison='' cat='' chgrp='' chmod='' chown='' compress='' cp='' cpio='' cpp='' csh='' date='' echo='' egrep='' emacs='' expr='' grep='' inews='' less='' line='' lint='' ln='' lp='' lpr='' ls='' mail='' mailx='' make='' mkdir='' more='' mv='' nroff='' perl='' pg='' pmake='' pr='' rm='' rmail='' sed='' sendmail='' sleep='' smail='' sort='' submit='' tail='' tar='' tbl='' test='' touch='' tr='' troff='' uname='' uniq='' uuname='' vi='' zcat='' Author='' Date='' Header='' Id='' Locker='' Log='' RCSfile='' Revision='' Source='' State='' bin='' byteorder='' cc='' ccflags='' ldflags='' cppflags='' optimize='' contains='' cppstdin='' cppminus='' d_getopt='' d_index='' d_memcpy='' d_memset='' d_portable='' d_voidsig='' signal_t='' defeditor='' i_string='' strings='' i_sysioctl='' i_bsdioctl='' i_syssockio='' d_voidtty='' i_termio='' i_sgtty='' i_termios='' libc='' nm_opt='' libpth='' plibpth='' libs='' mailer='' mansrc='' manext='' n='' c='' package='' privlib='' scriptdir='' spitshell='' shsharp='' sharpbang='' startsh='' sysman='' usrinc='' mips='' incpath='' mips_type='' voidflags='' defvoidused='' d_taropt_o='' large='' d_whoami='' i_sysselct='' CONFIG='' X: set package name package=kit X X: Eunice requires " " instead of "", can you believe it echo " " X: Here we go... echo "Beginning of configuration questions for $package kit." X define='define' undef='undef' 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 X X: We must find out about Eunice early eunicefix=':' if test -f /etc/unixtovms; then X eunicefix=/etc/unixtovms fi if test -f /etc/unixtovms.exe; then X eunicefix=/etc/unixtovms.exe fi X X: Find out which program gives a meaningful exit status if ls blurfl >/dev/null 2>&1; then X if awk '' blurfl >/dev/null 2>&1; then X check='cat' X else X check='awk ""' X fi else X check='ls' fi X X: Now test for existence of everything in MANIFEST echo " " if test -f ../MANIFEST; then X echo "First let's make sure your kit is complete. Checking..." X : some grep do not return a proper exit status X grep '^---' ../MANIFEST > .grepmani 2>/dev/null X if test -s .grepmani; then X(cd ..; eval $check `awk '!/^.*\/$/{if (b) print $1} X/^---/{b=1}' MANIFEST` || kill $$) >/dev/null X else X(cd ..; eval $check `awk '!/^.*\/$/{print $1}' MANIFEST` || kill $$) >/dev/null X fi X echo "Looks good..." else X echo "No MANIFEST found. Hope your kit is complete !" fi rm -f .grepmani X X: list of known cpp symbols attrlist="DGUX M_I186 M_I286 M_I386 M_I8086 M_XENIX UTS __DGUX__" attrlist="$attrlist _AIX __STDC__ __m88k__ ansi bsd4_2 gcos gimpel" attrlist="$attrlist hp9000s300 hp9000s500 hp9000s800 hpux" attrlist="$attrlist i186 i386 i486 i8086 iAPX286 ibm interdata" attrlist="$attrlist m88k mc300 mc500 mc68000 mc68k mc700 mert" attrlist="$attrlist mips ns16000 ns32000 nsc32000 os pdp11 posix pyr" attrlist="$attrlist sinix sony sparc sun tower tower32 tower32_600" attrlist="$attrlist tower32_800 tss u3b2 u3b20 u3b200 u3b5 ultrix unix" attrlist="$attrlist vax venix xenix z8000" X X: no include file wanted by default inclwanted='' X X: change the next line if compiling for Xenix/286 on Xenix/386 xlibpath='/usr/lib/386 /lib/386' libpth='/usr/lib/large /lib '$xlibpth' /lib/large' libpth=$libpth' /usr/lib/small /lib/small' X X: full support for void wanted by default defvoidused=15 X X X: some greps do not return status, grrr. echo "grimblepritz" >grimble if grep blurfldyick grimble >/dev/null 2>&1 ; then X contains=contains elif grep grimblepritz grimble >/dev/null 2>&1 ; then X contains=grep else X contains=contains fi rm -f grimble X: the following should work in any shell case "$contains" in contains*) X echo " " X echo "AGH! Grep doesn't return a status. Attempting remedial action." X cat >contains <<'EOSS' grep "$1" "$2" >.greptmp && cat .greptmp && test -s .greptmp XEOSS chmod +x contains esac X X: first determine how to suppress newline on echo command echo " " echo "Checking echo to see how to suppress newlines..." X(echo "hi there\c" ; echo " ") >.echotmp if $contains c .echotmp >/dev/null 2>&1 ; then X echo "...using -n." X n='-n' X c='' else X cat <<'EOM' X...using \c XEOM X n='' X c='\c' fi echo $n "The star should be here-->$c" echo '*' rm -f .echotmp X X: set up the echo used in my read myecho="case \"\$xxxm\" in X'') echo $n \"\$rp $c\";; X*) case \"\$rp\" in X '') echo $n \"[\$xxxm] $c\";; X *) echo $n \"\$rp [\$xxxm] $c\";; X esac;; esac" X X: now set up to do reads with possible shell escape and default assignment cat <<EOSC >myread xxxm=\$dflt X$myecho case "\$fastread" in yes) case "\$dflt" in X '') ans='!';; X *) ans=''; echo " " ;; X esac;; X*) ans='!';; esac while expr "X\$ans" : "X!" >/dev/null; do X read answ X set x \$xxxm X shift X aok=''; eval "ans=\"\$answ\"" && aok=y X case "\$answ" in X "\$ans") X case "\$ans" in X !) X sh X echo " " X $myecho X ;; X !*) X set x \`expr "X\$ans" : "X!$.*$\$"\` X shift X sh -c "\$*" X echo " " X $myecho X ;; X esac;; X *) X case "\$aok" in X y) X echo "*** Substitution done -- please confirm." X xxxm="\$ans" X ans=\`echo $n "\$ans$c" | tr '\012' ' '\` X xxxm="\$ans" X ans=! X ;; X *) X echo "*** Error -- try again." X ans=! X ;; X esac X $myecho X ;; X esac done case "\$ans" in X'') ans="\$xxxm";; esac XEOSC X X: general instructions cat <<EOH X This installation shell script will examine your system and ask you questions to determine how the kit 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. X 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)". X XEOH rp='' dflt="Type carriage return to continue" X. myread cat <<'EOH' X The prompter used in this script allows you to use shell variables and backticks in your answers. You may use $1, $2, etc... to refer to the words in the default answer, as if the default line was a set of arguments given to a script shell. This means you may also use $* to repeat the whole default line, so you do not have to re-type everything to add something to the default. X XEverytime there is a substitution, you will have to confirm. If there is an error (e.g. an unmatched backtick), the default answer will remain unchanged and you will be prompted again. X If you are in a hurry, you may run 'Configure -d'. This will bypass nearly all the questions and use the computed defaults (or the previous answers if there was already a config.sh file). X XEOH X. myread cat <<EOH X Much effort has been expended to ensure that this shell script will run on any Unix system. If despite that it blows up on yours, your best bet is to edit Configure and run it again. Also, let me (ram@eiffel.com) 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. X This installation script affects things in two ways: X X1) it may do direct variable substitutions on some of the files included X in this kit. X2) it builds a config.h file for inclusion in C programs. You may edit X any of these files as the need arises after running this script. X 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. X XEOH dflt="Type carriage return to continue" X. myread X X: 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 X echo "Your sh handles # comments correctly." X shsharp=true X spitshell=cat X echo " " X echo "Okay, let's see if #! works on this system..." X echo "#!/bin/cat" >try X $eunicefix try X chmod +x try X try > today X if test -s today; then X echo "It does." X sharpbang='#!' X else X echo "#! /bin/cat" > try X $eunicefix try X chmod +x try X try > today X if test -s today; then X echo "It does." X sharpbang='#! ' X else X echo "It doesn't." X sharpbang=': use ' X fi X fi else X echo "Your sh doesn't grok # comments--I will strip them later on." X shsharp=false X echo "exec grep -v '^[ ]*#'" >spitshell X chmod +x spitshell X $eunicefix spitshell X spitshell=`pwd`/spitshell X echo "I presume that if # doesn't work, #! won't work either!" X sharpbang=': use ' fi rm -f try today X X: 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 X$startsh set abc test "$?abc" != 1 XEOSS X chmod +x try X$eunicefix try if try; then X echo "Yup, it does." else X echo "Nope. You may have to fix up the shell scripts to make sure sh runs them." fi rm -f try X X: find out where common programs are echo " " echo "Locating common programs..." cat <<EOSC >loc X$startsh case \$# in X0) exit 1;; esac thing=\$1 shift dflt=\$1 shift for dir in \$*; do X case "\$thing" in X .) X if test -d \$dir/\$thing; then X echo \$dir X exit 0 X fi X ;; X *) X if test -f \$dir/\$thing; then X echo \$dir/\$thing X exit 0 X elif test -f \$dir/\$thing.exe; then X : on Eunice apparently X echo \$dir/\$thing X exit 0 X fi X ;; X esac done echo \$dflt exit 1 XEOSC chmod +x loc X$eunicefix loc loclist=" awk cat chgrp chmod chown echo expr grep mv rm sed tr X" trylist=" Mcc cpp mail nroff rmail sendmail tar test uname vi X" pth=`echo $PATH | sed -e 's/:/ /g'` pth="$pth /lib /usr/lib" for file in $loclist; do X xxx=`loc $file $file $pth` X eval $file=$xxx X eval _$file=$xxx X case "$xxx" in X /*) X echo $file is in $xxx. X ;; X *) X echo "I don't know where $file is. I hope it's in everyone's PATH." X ;; X esac done echo " " echo "Don't worry if any of the following aren't found..." ans=offhand for file in $trylist; do X xxx=`loc $file $file $pth` X eval $file=$xxx X eval _$file=$xxx X case "$xxx" in X /*) X echo $file is in $xxx. X ;; X *) X echo "I don't see $file out there, $ans." X ans=either X ;; X esac done case "$egrep" in egrep) X echo "Substituting grep for egrep." X egrep=$grep X ;; esac case "$test" in test) X echo "Hopefully test is built into your sh." X ;; X/bin/test) X if sh -c "PATH= test true" >/dev/null 2>&1; then X echo "Using the test built into your sh." X test=test X fi X ;; X*) X test=test X ;; esac case "$echo" in echo) X echo "Hopefully echo is built into your sh." X ;; X/bin/echo) X echo " " X echo "Checking compatibility between /bin/echo and builtin echo (if any)..." X $echo $n "hi there$c" >foo1 X echo $n "hi there$c" >foo2 X if cmp foo1 foo2 >/dev/null 2>&1; then X echo "They are compatible. In fact, they may be identical." X else X case "$n" in X '-n') n='' c='\c';; X *) n='-n' c='';; X esac X 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. X XFOO X $echo $n "The star should be here-->$c" X $echo "*" X fi X $rm -f foo1 foo2 X ;; X*) X : cross your fingers X echo=echo X ;; esac rmlist="$rmlist loc" X X: get old answers, if there is a config file out there hint=default if test -f ../config.sh; then X echo " " X dflt=y X rp="I see a config.sh file. Did Configure make it on THIS system?" X . myread X case "$ans" in X n*|N*) echo "OK, I'll ignore it.";; X *) echo "Fetching default answers from your old config.sh file..." X tmp="$n" X ans="$c" X . ../config.sh X cp ../config.sh . X n="$tmp" X c="$ans" X ;; X esac fi X X: Restore computed paths for file in $loclist $trylist; do X eval $file="\$_$file" done X X: set up shell script to do ~ expansion cat >filexp <<EOSS X$startsh X: expand filename case "\$1" in X ~/*|~) X echo \$1 | $sed "s|~|\${HOME-\$LOGDIR}|" X ;; X ~*) X if $test -f /bin/csh; then X /bin/csh -f -c "glob \$1" X echo "" X else X name=\`$expr x\$1 : '..$[^/]*$'\` X dir=\`$sed -n -e "/^\${name}:/{s/^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:$[^:]*$.*"'\$'"/\1/" -e p -e q -e '}' </etc/passwd\` X if $test ! -d "\$dir"; then X me=\`basename \$0\` X echo "\$me: can't locate home directory for: \$name" >&2 X exit 1 X fi X case "\$1" in X */*) X echo \$dir/\`$expr x\$1 : '..[^/]*/$.*$'\` X ;; X *) X echo \$dir X ;; X esac X fi X ;; X*) X echo \$1 X ;; esac XEOSS chmod +x filexp X$eunicefix filexp X X: determine where manual pages are on this system echo " " case "$sysman" in X'') 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` X ;; esac if test -d "$sysman"; then X echo "System manual is in $sysman." else X echo "Could not find manual pages in source form." fi X X: make some quick guesses about what we are up against echo " " X$echo $n "Hmm... $c" X$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 X xxx=`./loc addbib blurfl $pth` X if $test -f $xxx; then X echo "Looks kind of like a USG system with BSD features, but we'll see..." X echo exit 0 >bsd X echo exit 0 >usg X echo exit 1 >v7 X else X if $contains SIGTSTP foo >/dev/null 2>&1 ; then X echo "Looks kind of like an extended USG system, but we'll see..." X else X echo "Looks kind of like a USG system, but we'll see..." X fi X echo exit 1 >bsd X echo exit 0 >usg X echo exit 1 >v7 X fi X d_bsd="$undef" elif $contains SIGTSTP foo >/dev/null 2>&1 ; then X echo "Looks kind of like a BSD system, but we'll see..." X d_bsd="$define" X echo exit 0 >bsd X echo exit 1 >usg X echo exit 1 >v7 else X echo "Looks kind of like a Version 7 system, but we'll see..." X d_bsd="$undef" X echo exit 1 >bsd X echo exit 1 >usg X echo exit 0 >v7 fi case "$eunicefix" in X*unixtovms*) X 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. XEOI X echo "exit 0" >eunice X eunicefix=unixtovms X d_eunice="$define" X: it so happens the Eunice I know will not run shell scripts in Unix format X ;; X*) X echo " " X echo "Congratulations. You aren't running Eunice." X eunicefix=':' X d_eunice="$undef" X echo "exit 1" >eunice X ;; esac if test -f /xenix; then X echo "Actually, this looks more like a XENIX system..." X echo "exit 0" >xenix X d_xenix="$define" else X echo " " X echo "It's not Xenix..." X echo "exit 1" >xenix X d_xenix="$undef" fi chmod +x xenix X$eunicefix xenix if test -f /venix; then X echo "Actually, this looks more like a VENIX system..." X echo "exit 0" >venix else X echo " " X if xenix; then X : null X else X echo "Nor is it Venix..." X fi X echo "exit 1" >venix fi chmod +x bsd usg v7 eunice venix X$eunicefix bsd usg v7 eunice venix X$rm -f foo rmlist="$rmlist bsd usg v7 eunice venix xenix" X X: see if we need a special compiler echo " " if usg; then X case "$cc" in X '') case "$Mcc" in X /*) dflt='Mcc';; X *) case "$large" in X -M*) dflt='cc';; X *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then X if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then X dflt='cc' X else X dflt='cc -M' X fi X else X dflt='cc' X fi;; X esac;; X esac;; X *) dflt="$cc";; X esac X $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. X XEOM X rp="What command will force resolution on this system?" X . myread X cc="$ans" else X case "$cc" in X '') dflt=cc;; X *) dflt="$cc";; X esac X rp="Use which C compiler?" X . myread X cc="$ans" fi case "$cc" in gcc*) cpp=`loc gcc-cpp $cpp $pth`;; esac X X: What should the include directory be ? echo " " X$echo $n "Hmm... $c" case "$usrinc" in X'') dflt='/usr/include';; X*) dflt=$usrinc;; esac incpath='' mips_type='' if $test -f /bin/mips && /bin/mips; then X echo "Looks like a MIPS system..." X $cat >usr.c <<'EOCP' X#ifdef SYSTYPE_BSD43 X/bsd43 X#endif XEOCP X if $cc -E usr.c > usr.out && $contains / usr.out >/dev/null 2>&1; then X dflt='/bsd43/usr/include' X incpath='/bsd43' X mips_type='BSD 4.3' X else X mips_type='System V' X fi X echo "and you're compiling with the $mips_type compiler and libraries." else X echo "Doesn't look like a MIPS system." X echo "exit 1" >mips X chmod +x mips X $eunicefix mips fi cont=true while $test "$cont"; do X echo " " X rp="Where are the include files you want to use?" X . myread X usrinc="$ans" X if $test -d "$ans"; then X cont='' X else X if $test "$fastread" = yes; then X dflt=y X else X dflt=n X fi X rp="Directory $ans doesn't exist. Use that name anyway?" X . myread X dflt='' X case "$ans" in X y*) cont='';; X esac X fi done X$rm -f usr.c usr.out X X: determine optimize, if desired, or use for debug flag also case "$optimize" in X' ') dflt="none";; X'') dflt="-O";; X*) dflt="$optimize";; esac X$cat <<EOH X 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). XEither flag can be specified here. To use neither flag, specify the word "none". X XEOH rp="What optimizer/debugger flag should be used?" X. myread optimize="$ans" case "$optimize" in X'none') optimize=" ";; esac X case "$ccflags" in X'') case "$cc" in X *gcc*) dflt='-fpcc-struct-return';; X *) dflt='';; X esac X ;; X*) dflt="$ccflags" X case "$cc" in X *gcc*) case "$dflt" in X *-fpcc-struct-return*) ;; X *) dflt="$dflt -fpcc-struct-return";; X esac;; X esac;; esac X case "$mips_type" in X*BSD*) ;; X'') ;; X*) inclwanted="$inclwanted $usrinc/bsd";; esac for thisincl in $inclwanted; do X if $test -d $thisincl; then X if $test x$thisincl != x$usrinc; then X case "$dflt" in X *$thisincl*);; X *) dflt="$dflt -I$thisincl";; X esac X fi X fi done X case "$optimize" in X-g*) X case "$dflt" in X *DEBUG*);; X *) dflt="$dflt -DDEBUG";; X esac X ;; esac if $contains 'LANGUAGE_C' $usrinc/signal.h >/dev/null 2>&1; then X case "$dflt" in X *LANGUAGE_C*);; X *) dflt="$dflt -DLANGUAGE_C";; X esac elif $contains 'LANGUAGE_C' $usrinc/sys/signal.h >/dev/null 2>&1; then X case "$dflt" in X *LANGUAGE_C*);; X *) dflt="$dflt -DLANGUAGE_C";; X esac fi if $contains '_NO_PROTO' $usrinc/signal.h >/dev/null 2>&1; then X case "$dflt" in X *_NO_PROTO*);; X *) dflt="$dflt -D_NO_PROTO";; X esac elif $contains '_NO_PROTO' $usrinc/sys/signal.h >/dev/null 2>&1; then X case "$dflt" in X *_NO_PROTO*);; X *) dflt="$dflt -D_NO_PROTO";; X esac fi case "$dflt" in X'') dflt=none;; esac X$cat <<EOH X Your C compiler may want other flags. For this question you should include X-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". X XEOH set X $dflt shift dflt=${1+"$@"} rp="Any additional cc flags?" X. myread case "$ans" in none) ans=''; esac ccflags="$ans" X X: the following weeds options from ccflags that are of no interest to cpp cppflags="$ccflags" case "$cc" in X*gcc*) cppflags="$cppflags -D__GNUC__";; esac case "$mips_type" in X'');; X*BSD*) cppflags="$cppflags -DSYSTYPE_BSD43";; esac case "$cppflags" in X'');; X*) set X $cppflags X cppflags='' X for flag do X case $flag in X -D*|-I*|-traditional|-ansi|-nostdinc) cppflags="$cppflags $flag";; X esac X done X case "$cppflags" in X *-*) echo "(C preprocessor flags: $cppflags)";; X esac X ;; esac X case "$ldflags" in X'') if venix; then X dflt='-i -z' X else X dflt='none' X fi X ;; X*) dflt="$ldflags";; esac echo " " rp="Any additional ld flags (NOT including libraries)?" X. myread case "$ans" in none) ans=''; esac ldflags="$ans" rmlist="$rmlist pdp11" X X: check for ordering of bytes in a long case "$byteorder" in X'') X$cat <<'EOM' X In the following, larger digits indicate more significance. 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X fi X ;; X*) X echo " " X dflt="$byteorder" X ;; esac rp="What is the order of bytes in a long?" X. myread byteorder="$ans" X$rm -f try.c try X X: Set private lib path case "$plibpth" in X'') if mips; then X plibpth="$incpath/usr/lib /usr/local/lib /usr/ccs/lib" X else X plibpth="/usr/ccs/lib /usr/lib /usr/ucblib /usr/local/lib" X fi;; esac libpth="$plibpth $libpth" X X: Looking for optional libraries echo " " echo "Checking for optional libraries..." case "$libs" in X'') dflt='';; X*) dflt="$libs";; esac case "$libswanted" in X'') libswanted='c_s';; esac for thislib in $libswanted; do X case "$thislib" in X dbm) thatlib=ndbm;; X *_s) thatlib=NONE;; X *) thatlib="${thislib}_s";; X *) thatlib=NONE;; X esac X yyy="$incpath/usr/ccs/lib $incpath/usr/lib $incpath/usr/ucblib" X yyy="$yyy $incpath/usr/local/lib $incpath/lib" X xxx=`loc lib$thislib.a X $yyy` X if $test -f $xxx; then X echo "Found -l$thislib." X case "$dflt" in X *-l$thislib*|*-l$thatlib*);; X *) dflt="$dflt -l$thislib";; X esac X else X xxx=`loc lib$thislib.a X $libpth` X if $test -f $xxx; then X echo "Found $xxx." X case "$dflt" in X *$xxx*);; X *) dflt="$dflt $xxx";; X esac X else X xxx=`loc Slib$thislib.a X $xlibpth` X if $test -f $xxx; then X echo "Found -l$thislib." X case "$dflt" in X *-l$thislib*|*-l$thatlib*);; X *) dflt="$dflt -l$thislib";; X esac X else X echo "No -l$thislib." X fi X fi X fi done set X $dflt shift dflt="$*" case "$libs" in X'') dflt="$dflt";; X*) dflt="$libs";; esac case "$dflt" in X'') dflt='none';; esac X X$cat <<EOM X Some versions of Unix support shared libraries, which make executables smaller but make load time slightly longer. X 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. 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X. myread case "$ans" in none) ans=''; esac libs="$ans" X X: get list of predefined functions in a handy place echo " " case "$libc" in X'') libc=unknown;; esac case "$nm_opt" in X'') if $test -f /mach_boot; then X nm_opt='' X elif $test -d /usr/ccs/lib; then X nm_opt='-p' X else X nm_opt='' X fi;; esac libpth="$plibpth $libpth" case "$libs" in X*-lc_s*) libc=`loc libc_s.a $libc $libpth` esac libnames=''; case "$libs" in X'') ;; X*) for thislib in $libs; do X case "$thislib" in X -l*) thislib=`expr X$thislib : 'X-l$.*$'` X try=`loc lib$thislib.a blurfl/dyick $libpth` X if test ! -f $try; then X try=`loc lib$thislib blurfl/dyick $libpth` X if test ! -f $try; then X try=`loc $thislib blurfl/dyick $libpth` X if test ! -f $try; then X try=`loc Slib$thislib.a blurfl/dyick $xlibpth` X if test ! -f $try; then X try='' X fi X fi X fi X fi X libnames="$libnames $try" X ;; X *) libnames="$libnames $thislib" ;; X esac X done X ;; esac set /usr/ccs/lib/libc.so X$test -f $1 || set /usr/lib/libc.so X$test -f $1 || set /usr/lib/libc.so.[0-9]* X$test -f $1 || set /lib/libsys_s.a eval set \$$# if test -f "$1"; then X echo "Your (shared) C library seems to be in $1." 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You're normal." else X if ans=`./loc libc.a blurfl/dyick $libpth`; test -f "$ans"; then X : X elif ans=`./loc libc blurfl/dyick $libpth`; test -f "$ans"; then X libnames="$libnames "`./loc clib blurfl/dyick $libpth` X elif ans=`./loc clib blurfl/dyick $libpth`; test -f "$ans"; then X : X elif ans=`./loc Slibc.a blurfl/dyick $xlibpth`; test -f "$ans"; then X : X elif ans=`./loc Mlibc.a blurfl/dyick $xlibpth`; test -f "$ans"; then X : X else X ans=`./loc Llibc.a blurfl/dyick $xlibpth` X fi X if test -f "$ans"; then X echo "Your C library seems to be in $ans, of all places." X libc=$ans X else X libc='blurfl' X fi fi if $test -f "$libc"; then X dflt="$libc" X cat <<EOM X If the guess above is wrong (which it might be if you're using a strange compiler, or your machine supports multiple models), you can override it here. X XEOM else X dflt='' X echo $libpth | tr ' ' '\012' | sort | uniq > libpath X cat <<EOM I can't seem to find your C library. I've looked in the following places: X XEOM X $sed 's/^/ /' libpath X cat <<EOM X None of these seems to contain your C library. I need to get its name... X XEOM fi cont=true while $test "$cont"; do X rp="Where is your C library?" X . myread X libc="$ans" X if $test -f "$libc"; then X cont='' X else X case "$fastread" in X yes) dflt=y;; X *) dflt=n;; X esac X rp="File $libc does not exist. Use that name anyway?" X . myread X case "$ans" in X y*) cont='';; X esac X dflt='' X fi done echo " " echo $libc $libnames | tr ' ' '\012' | sort | uniq > libnames set X `cat libnames` shift xxx=files case $# in 1) xxx=file; esac echo "Extracting names from the following $xxx for later perusal:" echo " " X$sed 's/^/ /' libnames echo " " X$echo $n "This may take a while...$c" nm $nm_opt $* 2>/dev/null >libc.tmp X$echo $n ".$c" X$grep fprintf libc.tmp > libc.ptf xscan='eval "<libc.ptf $com >libc.list"; $echo $n ".$c"' xrun='eval "<libc.tmp $com >libc.list"; echo "done"' if com="$sed -n -e 's/^.* [ADTS] *_[_.]*//p' -e 's/^.* [ADTS] //p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^__*//' -e 's/^$[a-zA-Z_0-9$]*$.*xtern.*/\1/p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e '/|UNDEF/d' -e '/FUNC..GL/s/^.*|__*//p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^.* D __*//p' -e 's/^.* D //p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^_//' -e 's/^$[a-zA-Z_0-9]*$.*xtern.*text.*/\1/p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^.*|FUNC |GLOB .*|//p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$grep '|' | $sed -n -e '/|COMMON/d' -e '/|DATA/d' \ X -e '/ file/d' -e 's/^$[^ ]*$.*/\1/p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^.*|FUNC |GLOB .*|//p' -e 's/^.*|FUNC |WEAK .*|//p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun elif com="$sed -n -e 's/^__//' -e '/|Undef/d' -e '/|Proc/s/ .*//p'";\ X eval $xscan;\ X $contains '^fprintf$' libc.list >/dev/null 2>&1; then X eval $xrun else X nm -p $* 2>/dev/null >libc.tmp X com="$sed -n -e 's/^.* [ADTS] *_[_.]*//p' -e 's/^.* [ADTS] //p'";\ X eval "<libc.tmp $com >libc.list" X if $contains '^fprintf$' libc.list >/dev/null 2>&1; then X nm_opt='-p' X echo "done" X else X echo " " X echo "nm didn't seem to work right. Trying ar instead..." X com='' X if ar t $libc > libc.tmp; then X for thisname in $libnames; do X ar t $thisname >>libc.tmp X done X $sed -e 's/\.o$//' < libc.tmp > libc.list X echo "Ok." X else X echo "ar didn't seem to work right." X echo "Maybe this is a Cray...trying bld instead..." X if bld t $libc | $sed -e 's/.*\///' -e 's/\.o:.*$//' > libc.list; then X for thisname in $libnames; do X bld t $libnames | \ X $sed -e 's/.*\///' -e 's/\.o:.*$//' >>libc.list X ar t $thisname >>libc.tmp X done X echo "Ok." X else X echo "That didn't work either. Giving up." X exit 1 X fi X fi X fi fi nm_extract="$com" if test -f /lib/syscalls.exp; then X echo " " X echo "Also extracting names from /lib/syscalls.exp for good ole AIX..." X $sed -n 's/^$[^ ]*$[ ]*syscall$/\1/p' /lib/syscalls.exp >>libc.list fi X$rm -f libnames libpath X X: set up the script used to warn in case of inconsistency cat <<'EOSC' >whoa dflt=y echo ' ' echo "*** WHOA THERE!!! ***" echo " The $hint value for \$$var on this machine was \"$was\"!" rp=" Keep the $hint value?" X. myread case "$ans" in y) td=$was; tu=$was;; esac XEOSC X X: define an is-in-libc? function inlibc='echo " "; td=$define; tu=$undef; var=$2; eval "was=\$$2"; if $contains "^$1\$" libc.list >/dev/null 2>&1; then echo "$1() found."; X eval "case \"\$$var\" in $undef) . whoa; esac"; eval "$var=\$td"; else echo "$1() not found."; X eval "case \"\$$var\" in $define) . whoa; esac"; eval "$var=\$tu"; fi' X X: see if getopt exists set getopt d_getopt eval $inlibc X X: function used to set $1 to $val setvar='var=$1; eval "was=\$$1"; td=$define; tu=$undef; case "$val$was" in X$define$undef) . whoa; eval "$var=\$td";; X$undef$define) . whoa; eval "$var=\$tu";; X*) eval "$var=$val";; esac' X X: see which of string.h or strings.h is needed echo " " strings=`loc string.h "" $usrinc $inclwanted` val="$undef" if $test -r "$strings"; then X echo "Using <string.h> instead of <strings.h>." X if bsd; then X echo "(Actually, this looks more like it were an USG system)" X fi X val="$define" else X strings=`loc strings.h "" $usrinc $inclwanted` X if $test -r "$strings"; then X echo "Using <strings.h> instead of <string.h>." X if usg; then X echo "(Actually, this looks more like it were a BSD system)" X fi X else X echo "No string header found--You'll surely have problems." X fi fi set i_string eval $setvar X X: index or strchr echo " " case "$d_index" in n) dflt=n;; X*) dflt=y;; esac if $contains '^index$' libc.list >/dev/null 2>&1 ; then X if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then X if $contains strchr "$strings" >/dev/null 2>&1 ; then X if $contains index "$strings" >/dev/null 2>&1 ; then X echo "Your system has both index() and strchr()." X rp="Shall I use index() rather than strchr()?" X . myread X case "$ans" in X n*) val="$define" ;; X *) val="$undef" ;; X esac X else X val="$define" X echo "strchr() found." X fi X else X val="$undef" X echo "index() found." X fi X else X val="$undef" X echo "index() found." X fi else X if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then X val="$define" X echo "strchr() found." X else X echo "No index() or strchr() found!" X val="$undef" X fi fi set d_index eval $setvar X X: see if memcpy exists set memcpy d_memcpy eval $inlibc X X: see if memset exists set memset d_memset eval $inlibc X X: see how we invoke the C preprocessor echo " " echo "Now, how can we feed standard input to your C preprocessor..." cat <<'EOT' >testcpp.c X#define ABC abc X#define XYZ xyz ABC.XYZ XEOT cd .. echo 'cat >.$$.c; '"$cc"' -E ${1+"$@"} .$$.c; rm .$$.c' >cppstdin chmod 755 cppstdin wrapper=`pwd`/cppstdin cd UU if test "X$cppstdin" != "X" && \ X $cppstdin $cppminus <testcpp.c >testcpp.out 2>&1 && \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "You used to use $cppstdin $cppminus so we'll use that again." elif test "$cc" = gcc && \ X (echo "Using gcc, eh? We'll try to force gcc -E using a wrapper..."; \ X $wrapper <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1) ; then X echo "Yup, we can." X cppstdin="$wrapper" X cppminus=''; elif echo 'Maybe "'"$cc"' -E" will work...'; \ X $cc -E <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "Yup, it does." X cppstdin="$cc -E" X cppminus=''; elif echo 'Nope...maybe "'"$cc"' -E -" will work...'; \ X $cc -E - <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "Yup, it does." X cppstdin="$cc -E" X cppminus='-'; elif echo 'Uh-uh. Time to get fancy. Trying a wrapper...'; \ X $wrapper <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X cppstdin="$wrapper" X cppminus='' X echo "Eureka!" elif echo 'No such luck, maybe "'$cpp'" will work...'; \ X $cpp <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "It works!" X cppstdin="$cpp" X cppminus=''; elif echo 'Nixed again...maybe "'$cpp' -" will work...'; \ X $cpp - <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "Hooray, it works! I was beginning to wonder." X cppstdin="$cpp" X cppminus='-'; elif echo 'Nope...maybe "'"$cc"' -P" will work...'; \ X $cc -P <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "Yipee, that works!" X cppstdin="$cc -P" X cppminus=''; elif echo 'Nope...maybe "'"$cc"' -P -" will work...'; \ X $cc -P - <testcpp.c >testcpp.out 2>&1; \ X $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "At long last!" X cppstdin="$cc -P" X cppminus='-'; else X dflt='' X rp="No dice. I can't find a C preprocessor. Name one:" X . myread X cppstdin="$ans" X $cppstdin <testcpp.c >testcpp.out 2>&1 X if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then X echo "OK, that will do." X else X echo "Sorry, I can't get that to work. Go find one and rerun Configure." X exit 1 X fi fi X$rm -f testcpp.c testcpp.out X X: get C preprocessor symbols handy echo " " echo $attrlist | $tr '[ - ]' '[\012-\012]' >Cppsym.know X$cat <<EOSS >Cppsym X$startsh case "\$1" in X-l) list=true X shift X ;; esac unknown='' case "\$list\$#" in X1|2) X for sym do X if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then X exit 0 X elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then X : X else X unknown="\$unknown \$sym" X fi X done X set X \$unknown X shift X ;; esac case \$# in X0) exit 1;; esac echo \$* | $tr '[ - ]' '[\012-\012]' | $sed -e 's/$.*$/\\ X#ifdef \1\\ exit 0; _ _ _ _\1\\ \1\\ X#endif\\ X/' >Cppsym\$\$ echo exit 1 >>Cppsym\$\$ X$cppstdin $cppminus <Cppsym\$\$ >Cppsym2\$\$ case "\$list" in true) $awk 'NF > 5 {print substr(\$6,2,100)}' <Cppsym2\$\$ ;; X*) X sh Cppsym2\$\$ X status=\$? X ;; esac X$rm -f Cppsym\$\$ Cppsym2\$\$ exit \$status XEOSS chmod +x Cppsym X$eunicefix Cppsym echo "Your C preprocessor defines the following symbols:" Cppsym -l $attrlist >Cppsym.true X$cat Cppsym.true rmlist="$rmlist Cppsym Cppsym.know Cppsym.true" X X: see if this is a termio system val="$undef" val2="$undef" val3="$undef" if $test -r $usrinc/termios.h ; then X set tcsetattr i_termios X eval $inlibc X val3="$i_termios" fi echo " " case "$val3" in X"$define") echo "You have POSIX termios.h... good!";; X*) if Cppsym pyr; then X case "`bin/universe`" in X ucb) if $test -r $usrinc/sgtty.h; then X val2="$define" X echo "<sgtty.h> found." X else X echo "System is pyramid with BSD universe." X echo "<sgtty.h> not found--you could have problems." X fi;; X *) if $test -r $usrinc/termio.h; then X val="$define" X echo "<termio.h> found." X else X echo "System is pyramid with USG universe." X echo "<termio.h> not found--you could have problems." X fi;; X esac X elif usg; then X if $test -r $usrinc/termio.h ; then X echo "<termio.h> found." X val="$define" X elif $test -r $usrinc/sgtty.h ; then X echo "<sgtty.h> found." X val2="$define" X else X echo "Neither <termio.h> nor <sgtty.h> found--you could have problems." X fi X else X if $test -r $usrinc/sgtty.h ; then X echo "<sgtty.h> found." X val2="$define" X elif $test -r $usrinc/termio.h ; then X echo "<termio.h> found." X val="$define" X else X echo "Neither <sgtty.h> nor <termio.h> found--you could have problems." X fi X fi;; esac set i_termio; eval $setvar val=$val2; set i_sgtty; eval $setvar val=$val3; set i_termios; eval $setvar X X: see if ioctl defs are in sgtty/termio or sys/ioctl echo " " if $test -r $usrinc/sys/ioctl.h ; then X val="$define" X echo "<sys/ioctl.h> found." else X val="$undef" X $test $i_termio = "$define" && xxx="termio.h" X $test $i_termios = "$define" && xxx="termios.h" X $test $i_sgtty = "$define" && xxx="sgtty.h" X echo "No <sys/ioctl.h> found, assuming ioctl args are defined in <$xxx>." fi set i_sysioctl eval $setvar X X: see if signal is declared as pointer to function returning int or void echo " " X$cppstdin $cppminus $cppflags < $usrinc/signal.h >$$.tmp if $contains 'int.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then X echo "You have int (*signal())() instead of void." X val="$undef" X signal_t="int" elif $contains 'void.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then X echo "You have void (*signal())() instead of int." X val="$define" X signal_t="void" elif $contains 'extern[ ]*[(\*]*signal' $$.tmp >/dev/null 2>&1 ; then X echo "You have int (*signal())() instead of void." X val="$undef" X signal_t="int" else X case "$d_voidsig" in X '') echo "I can't determine whether signal handler returns void or int..." X dflt=void X rp="What type does your signal handler returns?" X . myread X case "$ans" in X void) val="$define"; signal_t="void";; X *) val="$undef"; signal_t="int";; X esac;; X *) echo "As you already told me, signal handler returns $signal_t.";; X esac fi set d_voidsig eval $setvar X$rm -f $$.tmp X X: check for void type echo " " X$cat <<EOM Checking to see how well your C compiler groks the void type... X X Support flag bits are: X 1: basic void declarations. X 2: arrays of pointers to functions returning void. X 4: operations between pointers to and addresses of void functions. X 8: generic void pointers. X XEOM case "$voidflags" in X'') X $cat >try.c <<'EOCP' X#if TRY & 1 void main() { X#else main() { X#endif X extern void moo(); /* function returning void */ X void (*goo)(); /* ptr to func returning void */ X#if TRY & 8 X void *hue; /* generic ptr */ X#endif X#if TRY & 2 X void (*foo[10])(); X#endif X X#if TRY & 4 X if(goo == moo) { X exit(0); X } X#endif X exit(0); X} XEOCP X if $cc -S -DTRY=$defvoidused try.c >.out 2>&1 ; then X voidflags=$defvoidused X echo "It appears to support void to the level $package wants ($defvoidused)." X if $contains warning .out >/dev/null 2>&1; then X echo "However, you might get some warnings that look like this:" X $cat .out X fi X else X echo "Hmm, your compiler has some difficulty with void. Checking further..." X if $cc -S -DTRY=1 try.c >/dev/null 2>&1 ; then X echo "It supports 1..." X if $cc -S -DTRY=3 try.c >/dev/null 2>&1 ; then X echo "It also supports 2..." X if $cc -S -DTRY=7 try.c >/dev/null 2>&1 ; then X voidflags=7 X echo "And it supports 4 but not 8 definitely." X else X echo "It doesn't support 4..." X if $cc -S -DTRY=11 try.c >/dev/null 2>&1 ; then X voidflags=11 X echo "But it supports 8." X else X voidflags=3 X echo "Neither does it support 8." X fi X fi X else X echo "It does not support 2..." X if $cc -S -DTRY=13 try.c >/dev/null 2>&1 ; then X voidflags=13 X echo "But it supports 4 and 8." X else X if $cc -S -DTRY=5 try.c >/dev/null 2>&1 ; then X voidflags=5 X echo "And it supports 4 but has not heard about 8." X else X echo "However it supports 8 but not 4." X fi X fi X fi X else X echo "There is no support at all for void." X voidflags=0 X fi X fi esac dflt="$voidflags"; rp="Your void support flags add up to what?" 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X . myread X dflt='' X case "$ans" in X y*) cont='';; X esac X fi done X X: see if we need -o option for tar echo " " case "$d_taropt_o" in X'') if $test -f "$tar"; then X if $tar -cf - /dev/null 2>/dev/null | $tar -xof - >/dev/null 2>&1; then X val="$define" X else X val="$undef" X fi X else X val="$undef" X fi;; X*) val="$d_taropt_o";; esac case "$val" in X"$define") echo "I'll use the -o option with tar upon archive extraction.";; X*) echo "Your tar does not seem to support the -o option. I'll ignore it then.";; esac set d_taropt_o eval $setvar X X: determine default editor case "$defeditor" in X'') X case "$_vi" in X */*) dflt="$_vi";; X *) dflt=/usr/ucb/vi;; X esac X ;; X*) dflt="$defeditor" X ;; esac cont=true while $test "$cont" ; do X echo " " X rp="What is the default editor on your system?" X . myread X defeditor="$ans" X if test -f $ans; then X cont='' X else X dflt=n X rp="File $ans doesn't exist. Use that name anyway?" 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X . myread X dflt='' X case "$ans" in X y*) cont='';; X esac X fi;; X esac done case "$mansrc" in X'') manext='0';; X*l) manext=l;; X*n) manext=n;; X*o) manext=l;; X*p) manext=n;; X*C) manext=C;; X*L) manext=L;; X*) manext=1;; esac X X: decide how portable to be case "$d_portable" in X"$define") dflt=y;; X*) dflt=n;; esac X$cat <<'EOH' X I can set things up so that your shell scripts and binaries are more portable, at what may be a noticable cost in performance. In particular, if you ask to be portable, the following happens: X X 1) Shell scripts will rely on the PATH variable rather than using X the paths derived above. X 2) ~username interpretations will be done at run time rather than X by Configure. X XEOH rp="Do you expect to run these scripts and binaries on multiple machines?" 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