[metaconfig.git] / U / modified / Oldconfig.U

?RCS: $Id: Oldconfig.U,v 3.0.1.10 1997/02/28 15:06:39 ram Exp $
?RCS:
?RCS: Copyright (c) 1991-1993, Raphael Manfredi
?RCS: 
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 3.0.
?RCS:
?RCS: $Log: Oldconfig.U,v $
?RCS: Revision 3.0.1.10  1997/02/28  15:06:39  ram
?RCS: patch61: added support for src.U
?RCS: patch61: new OSNAME define
?RCS: patch61: can now sense new OSes
?RCS:
?RCS: Revision 3.0.1.9  1995/07/25  13:40:51  ram
?RCS: patch56: now knows about OS/2 platforms
?RCS:
?RCS: Revision 3.0.1.8  1995/05/12  12:04:18  ram
?RCS: patch54: config.sh reload logic now knows about new -K switch
?RCS: patch54: cleaned up and extended osvers for DEC OSF/1 (ADO)
?RCS: patch54: added MachTen detection (ADO)
?RCS:
?RCS: Revision 3.0.1.7  1995/02/15  14:13:41  ram
?RCS: patch51: adapted osvers computation for AIX (ADO)
?RCS:
?RCS: Revision 3.0.1.6  1995/01/30  14:27:15  ram
?RCS: patch49: unit Options.U now exports file optdef.sh, not a variable
?RCS: patch49: update code for myuname changed (WED)
?RCS:
?RCS: Revision 3.0.1.5  1995/01/11  15:15:36  ram
?RCS: patch45: added quotes around the INITPROG variable (ADO)
?RCS: patch45: allows variable overriding after config file loading
?RCS:
?RCS: Revision 3.0.1.4  1994/10/29  15:57:05  ram
?RCS: patch36: added ?F: line for metalint file checking
?RCS: patch36: merged with the version used for perl5's Configure (ADO)
?RCS:
?RCS: Revision 3.0.1.3  1994/05/06  14:24:17  ram
?RCS: patch23: added support for osf1 hints
?RCS: patch23: new support for solaris and i386 systems (ADO)
?RCS:
?RCS: Revision 3.0.1.2  1994/01/24  14:05:02  ram
?RCS: patch16: added post-processing on myuname for Xenix targets
?RCS: patch16: message proposing config.sh defaults made consistent
?RCS:
?RCS: Revision 3.0.1.1  1993/09/13  15:56:32  ram
?RCS: patch10: force use of config.sh when -d option is used (WAD)
?RCS: patch10: complain about non-existent hint files (WAD)
?RCS: patch10: added Options dependency for fastread variable
?RCS:
?RCS: Revision 3.0  1993/08/18  12:05:12  ram
?RCS: Baseline for dist 3.0 netwide release.
?RCS:
?X:
?X: This unit tries to remember what we did last time we ran Configure, mostly
?X: for the sake of setting defaults.
?X:
?MAKE:Oldconfig hint myuname osname osvers: Instruct Myread uname \
	sh awk sed test cat rm lns tr n c contains Loc Options Tr src trnl ln
?MAKE:	-pick wipe $@ %<
?S:myuname:
?S:	The output of 'uname -a' if available, otherwise the hostname. On Xenix,
?S:	pseudo variables assignments in the output are stripped, thank you. The
?S:	whole thing is then lower-cased.
?S:.
?S:hint:
?S:	Gives the type of hints used for previous answers. May be one of
?S:	"default", "recommended" or "previous".
?S:.
?S:osname:
?S:	This variable contains the operating system name (e.g. sunos,
?S:	solaris, hpux, etc.).  It can be useful later on for setting
?S:	defaults.  Any spaces are replaced with underscores.  It is set
?S:	to a null string if we can't figure it out.
?S:.
?S:osvers:
?S:	This variable contains the operating system version (e.g.
?S:	4.1.3, 5.2, etc.).  It is primarily used for helping select
?S:	an appropriate hints file, but might be useful elsewhere for
?S:	setting defaults.  It is set to '' if we can't figure it out.
?S:	We try to be flexible about how much of the version number
?S:	to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
?S:	same for this package, hints files might just be os_4.0 or
?S:	os_4.1, etc., not keeping separate files for each little release.
?S:.
?C:OSNAME:
?C:	This symbol contains the name of the operating system, as determined
?C:	by Configure.  You shouldn't rely on it too much; the specific
?C:	feature tests from Configure are generally more reliable.
?C:.
?H:#define OSNAME "$osname"		/**/
?H:.
?F:!config.sh
?T:tmp tmp_n tmp_c tmp_sh file
?T:xxxxfile xxxfile xxfile xfile hintfile newmyuname
?T:tans _ isesix INITPROG DJGPP
?D:osname=''
?LINT:change n c sh
: Try to determine whether config.sh was made on this system
case "$config_sh" in
'')
?X: indentation wrong on purpose--RAM
?X: Leave a white space between first two '(' for ksh. The sub-shell is needed
?X: on some machines to avoid the error message when uname is not found; e.g.
?X: old SUN-OS 3.2 would not execute hostname in (uname -a || hostname). Sigh!
myuname=`( ($uname -a) 2>/dev/null || hostname) 2>&1`
?X: Special mention for Xenix, whose 'uname -a' gives us output like this:
?X:  sysname=XENIX
?X:  nodename=whatever
?X:  release=2.3.2 .. etc...
?X: Therefore, we strip all this variable assignment junk and remove all the
?X: new lines to keep the myuname variable sane... --RAM
# tr '[A-Z]' '[a-z]' would not work in EBCDIC
# because the A-Z/a-z are not consecutive.
myuname=`echo $myuname | $sed -e 's/^[^=]*=//' -e 's/\///g' | \
	./tr '[A-Z]' '[a-z]' | $tr $trnl ' '`
?X: Save the value we just computed to reset myuname after we get done here.
newmyuname="$myuname"
dflt=n
case "$knowitall" in
'')
	if test -f ../config.sh; then
		if $contains myuname= ../config.sh >/dev/null 2>&1; then
			eval "`grep myuname= ../config.sh`"
		fi
		if test "X$myuname" = "X$newmyuname"; then
			dflt=y
		fi
	fi
	;;
*) dflt=y;;
esac

@if {test -d ../hints}
: Get old answers from old config file if Configure was run on the
: same system, otherwise use the hints.
hint=default
cd ..
?X: Since we are now at the root of the source tree, we must use $src
?X: to access the sources and not $rsrc. See src.U for details...
if test -f config.sh; then
	echo " "
	rp="I see a config.sh file.  Shall I use it to set the defaults?"
	. UU/myread
	case "$ans" in
	n*|N*) echo "OK, I'll ignore it."; mv config.sh config.sh.old;;
	*)  echo "Fetching default answers from your old config.sh file..." >&4
		tmp_n="$n"
		tmp_c="$c"
		tmp_sh="$sh"
		. ./config.sh
		cp config.sh UU
		n="$tmp_n"
		c="$tmp_c"
		: Older versions did not always set $sh.  Catch re-use of such
		: an old config.sh.
		case "$sh" in
		'') sh="$tmp_sh" ;;
		esac
		hint=previous
		;;
	esac
fi
if test ! -f config.sh; then
	$cat <<EOM

First time through, eh?  I have some defaults handy for some systems
that need some extra help getting the Configure answers right:

EOM
	(cd $src/hints; ls -C *.sh) | $sed 's/\.sh/   /g' >&4
	dflt=''
	: Half the following guesses are probably wrong... If you have better
	: tests or hints, please send them to <MAINTLOC>
	: The metaconfig authors would also appreciate a copy...
	$test -f /irix && osname=irix
	$test -f /xenix && osname=sco_xenix
	$test -f /dynix && osname=dynix
	$test -f /dnix && osname=dnix
	$test -f /lynx.os && osname=lynxos
	$test -f /unicos && osname=unicos && osvers=`$uname -r`
	$test -f /unicosmk.ar && osname=unicosmk && osvers=`$uname -r`
	$test -f /bin/mips && /bin/mips && osname=mips
	$test -d /NextApps && set X `hostinfo | grep 'NeXT Mach.*:' | \
		$sed -e 's/://' -e 's/\./_/'` && osname=next && osvers=$4
	$test -d /usr/apollo/bin && osname=apollo
	$test -f /etc/saf/_sactab && osname=svr4
	$test -d /usr/include/minix && osname=minix
	if $test -d /MachTen -o -d /MachTen_Folder; then
?X:		MachTen uname -a output looks like
?X:		xxx 4 0.0 Macintosh
?X:		MachTen /sbin/version output looks like
?X:		MachTen 4.0 Mon Aug 28 10:18:00 1995
?X:		MachTen 3.x had the 'version' command in /usr/etc/version.
		osname=machten
		if $test -x /sbin/version; then
			osvers=`/sbin/version | $awk '{print $2}' |
			$sed -e 's/[A-Za-z]$//'`
		elif $test -x /usr/etc/version; then
			osvers=`/usr/etc/version | $awk '{print $2}' |
			$sed -e 's/[A-Za-z]$//'`
		else
			osvers="$2.$3"
		fi
	fi
       $test -f /sys/posix.dll &&
	       $test -f /usr/bin/what &&
	       set X `/usr/bin/what /sys/posix.dll` &&
	       $test "$3" = UWIN &&
	       osname=uwin &&
	       osvers="$5"
?X: If we have uname, we already computed a suitable uname -a output, correctly
?X: formatted for Xenix, and it lies in $myuname.
	if $test -f $uname; then
		set X $myuname
		shift

		case "$5" in
		fps*) osname=fps ;;
		mips*)
			case "$4" in
			umips) osname=umips ;;
			*) osname=mips ;;
			esac;;
		[23]100) osname=mips ;;
		next*) osname=next ;;
?X: Interactive Unix.
		i386*)
			tmp=`/bin/uname -X 2>/dev/null|awk '/3\.2v[45]/{ print $(NF) }'`
			if $test "$tmp" != "" -a "$3" = "3.2" -a -f '/etc/systemid'; then
				osname='sco'
				osvers=$tmp
			elif $test -f /etc/kconfig; then
				osname=isc
				if test "$lns" = "$ln -s"; then
					osvers=4
				elif $contains _SYSV3 /usr/include/stdio.h > /dev/null 2>&1 ; then
					osvers=3
				elif $contains _POSIX_SOURCE /usr/include/stdio.h > /dev/null 2>&1 ; then
					osvers=2
				fi
			fi
			tmp=''
			;;
?X: MS-DOS djgpp uname -a output looks like:
?X: ms-dos xxx 6 22 pc
?X:  $1 is the "dos flavor" (need not be "ms-dos").
?X:  $2 is the node name
?X:  $3 and $4 are version/subversion
?X:  $5 is always "pc", but that might not be unique to DJGPP.
?X: (e.g. Solaris_x86 has $5 = i86pc, which doesn't actually conflict,
?X: but it's close enought that I can easily imagine other vendors also 
?X: using variants of pc* in $5.)
?X:  The "DJGPP" environment variable is always set when djgpp is active.
		pc*)
			if test -n "$DJGPP"; then
				osname=dos
				osvers=djgpp
			fi
			;;
		esac

		case "$1" in
		aix) osname=aix
?X: aix 4.1 uname -a output looks like
?X:		AIX  foo  1 4 000123456789   
?X: where $4 is the major release number and $3 is the (minor) version.
?X: More detail on the version is available with the oslevel command.
?X: in 3.2.x, it output a string (see case statements below).  In 4.1,
?X: it puts out something like  4.1.1.0
			tmp=`( (oslevel) 2>/dev/null || echo "not found") 2>&1`
			case "$tmp" in
			'not found') osvers="$4"."$3" ;;
			'<3240'|'<>3240') osvers=3.2.0 ;;
			'=3240'|'>3240'|'<3250'|'<>3250') osvers=3.2.4 ;;
			'=3250'|'>3250') osvers=3.2.5 ;;
			*) osvers=$tmp;;
			esac
			;;
		*dc.osx) osname=dcosx
			osvers="$3"
			;;
		dnix) osname=dnix
			osvers="$3"
			;;
		domainos) osname=apollo
			osvers="$3"
			;;
		dgux) osname=dgux 
			osvers="$3"
			;;
?X:		uname -a returns
?X:		DYNIX/ptx xxx 4.0 V4.1.2 i386
		dynixptx*) osname=dynixptx
			osvers=`echo "$4"|sed 's/^v//'`
			;;
		freebsd) osname=freebsd 
			osvers="$3" ;;
		genix) osname=genix ;;
?X: HP-UX uname -a gives something like
?X: HP-UX foobar B.10.20 A 9000/735 2016483812 two-user license
?X: Preserve the full 10.20 string instead of the previous plain '10'.
?X:  Thanks to Graham Barr.    --AD 6/30/1998
		hp*) osname=hpux 
			osvers=`echo "$3" | $sed 's,.*\.\([0-9]*\.[0-9]*\),\1,'`
			;;
		irix*) osname=irix
			case "$3" in
			4*) osvers=4 ;;
			5*) osvers=5 ;;
			*)	osvers="$3" ;;
			esac
			;;
		linux) osname=linux
			case "$3" in
			*)	osvers="$3" ;;
			esac
			;;
		MiNT) osname=mint
			;;
		netbsd*) osname=netbsd
			osvers="$3"
			;;
		news-os) osvers="$3"
			case "$3" in
			4*) osname=newsos4 ;;
			*) osname=newsos ;;
			esac
			;;
		bsd386) osname=bsd386
			osvers=`$uname -r`
			;;
                POSIX-BC | posix-bc ) osname=posix-bc
                        osvers="$3"
                        ;;
		powerux | power_ux | powermax_os | powermaxos | \
		powerunix | power_unix) osname=powerux
			osvers="$3"
			;;
		next*) osname=next ;;
		solaris) osname=solaris
			case "$3" in
			5*) osvers=`echo $3 | $sed 's/^5/2/g'` ;;
			*)	osvers="$3" ;;
			esac
			;;
		sunos) osname=sunos
			case "$3" in
			5*) osname=solaris
				osvers=`echo $3 | $sed 's/^5/2/g'` ;;
			*)	osvers="$3" ;;
			esac
			;;
		titanos) osname=titanos
			case "$3" in
			1*) osvers=1 ;;
			2*) osvers=2 ;;
			3*) osvers=3 ;;
			4*) osvers=4 ;;
			*)	osvers="$3" ;;
			esac
			;;
		ultrix) osname=ultrix
			osvers="$3"
			;;
		osf1|mls+)	case "$5" in
				alpha)
?X: DEC OSF/1 myuname -a output looks like:  osf1 xxxx t3.2 123.4 alpha
?X: where the version number can be something like [xvt]n.n
					osname=dec_osf
					osvers=`echo "$3" | sed 's/^[xvt]//'`
					;;
			hp*)	osname=hp_osf1	;;
			mips)	osname=mips_osf1 ;;
?X:	hp and mips were unsupported Technology Releases -- ADO, 24/10/94
			esac
			;;
		uts) osname=uts 
			osvers="$3"
			;;
		qnx) osname=qnx
			osvers="$4"
			;;
		$2) case "$osname" in
			*isc*) ;;
			*freebsd*) ;;
			svr*)
				: svr4.x or possibly later
				case "svr$3" in	
				${osname}*)
					osname=svr$3
					osvers=$4
					;;
				esac
				case "$osname" in
				svr4.0)
					: Check for ESIX
					if test -f /stand/boot ; then
						eval `grep '^INITPROG=[a-z/0-9]*$' /stand/boot`
						if test -n "$INITPROG" -a -f "$INITPROG"; then
			isesix=`strings -a $INITPROG|grep 'ESIX SYSTEM V/386 Release 4.0'`
							if test -n "$isesix"; then
								osname=esix4
							fi
						fi
					fi
					;;
				esac
				;;
			*)	if test -f /etc/systemid; then
					osname=sco
					set `echo $3 | $sed 's/\./ /g'` $4
					if $test -f $src/hints/sco_$1_$2_$3.sh; then
						osvers=$1.$2.$3
					elif $test -f $src/hints/sco_$1_$2.sh; then
						osvers=$1.$2
					elif $test -f $src/hints/sco_$1.sh; then
						osvers=$1
					fi
				else
					case "$osname" in
					'') : Still unknown.  Probably a generic Sys V.
						osname="sysv"
						osvers="$3"
						;;
					esac
				fi
				;;
			esac
			;;
		*)	case "$osname" in
			'') : Still unknown.  Probably a generic BSD.
				osname="$1"
				osvers="$3"
				;;
			esac
			;;
		esac
	else
?X: Try to identify sony's NEWS-OS (BSD unix)
		if test -f /vmunix -a -f $src/hints/news_os.sh; then
			(what /vmunix | UU/tr '[A-Z]' '[a-z]') > UU/kernel.what 2>&1
			if $contains news-os UU/kernel.what >/dev/null 2>&1; then
				osname=news_os
			fi
			$rm -f UU/kernel.what
?X: Maybe it's OS/2 or DOS or something similar
		elif test -d c:/.; then
			set X $myuname
			osname=os2
			osvers="$5"
		fi
	fi
	
	: Now look for a hint file osname_osvers, unless one has been
	: specified already.
	case "$hintfile" in
	''|' ')
		file=`echo "${osname}_${osvers}" | $sed -e 's@\.@_@g' -e 's@_$@@'`
		: Also try without trailing minor version numbers.
		xfile=`echo $file | $sed -e 's@_[^_]*$@@'`
		xxfile=`echo $xfile | $sed -e 's@_[^_]*$@@'`
		xxxfile=`echo $xxfile | $sed -e 's@_[^_]*$@@'`
		xxxxfile=`echo $xxxfile | $sed -e 's@_[^_]*$@@'`
		case "$file" in
		'') dflt=none ;;
		*)  case "$osvers" in
			'') dflt=$file
				;;
			*)  if $test -f $src/hints/$file.sh ; then
					dflt=$file
				elif $test -f $src/hints/$xfile.sh ; then
					dflt=$xfile
				elif $test -f $src/hints/$xxfile.sh ; then
					dflt=$xxfile
				elif $test -f $src/hints/$xxxfile.sh ; then
					dflt=$xxxfile
				elif $test -f $src/hints/$xxxxfile.sh ; then
					dflt=$xxxxfile
				elif $test -f "$src/hints/${osname}.sh" ; then
					dflt="${osname}"
				else
					dflt=none
				fi
				;;
			esac
			;;
		esac
		if $test -f Policy.sh ; then
			case "$dflt" in
			*Policy*) ;;
			none) dflt="Policy" ;;
			*) dflt="Policy $dflt" ;;
			esac
		fi
		;;
	*)
		dflt=`echo $hintfile | $sed 's/\.sh$//'`
		;;
	esac

	if $test -f Policy.sh ; then
		$cat <<EOM

There's also a Policy hint file available, which should make the
site-specific (policy) questions easier to answer.
EOM

	fi

	$cat <<EOM

You may give one or more space-separated answers, or "none" if appropriate.
A well-behaved OS will have no hints, so answering "none" or just "Policy"
is a good thing.  DO NOT give a wrong version or a wrong OS.

EOM

	rp="Which of these apply, if any?"
	. UU/myread
	tans=$ans
	for file in $tans; do
		if $test X$file = XPolicy -a -f Policy.sh; then
			. Policy.sh
			$cat Policy.sh >> UU/config.sh
		elif $test -f $src/hints/$file.sh; then
			. $src/hints/$file.sh
			$cat $src/hints/$file.sh >> UU/config.sh
		elif $test X$tans = X -o X$tans = Xnone ; then
			: nothing
		else
			: Give one chance to correct a possible typo.
			echo "$file.sh does not exist"
			dflt=$file
			rp="hint to use instead?"
			. UU/myread
			for file in $ans; do
				if $test -f "$src/hints/$file.sh"; then
					. $src/hints/$file.sh
					$cat $src/hints/$file.sh >> UU/config.sh
				elif $test X$ans = X -o X$ans = Xnone ; then
					: nothing
				else
					echo "$file.sh does not exist -- ignored."
				fi
			done
		fi
	done

	hint=recommended
	: Remember our hint file for later.
	if $test -f "$src/hints/$file.sh" ; then
		hintfile="$file"
	else
		hintfile=''
	fi
fi
cd UU
?X: From here on, we must use $rsrc instead of $src
@else
: Get old answers, if there is a config file out there
hint=default
hintfile=''
if test -f ../config.sh; then
	echo " "
	rp="I see a config.sh file.  Shall I use it to set the defaults?"
	. ./myread
	case "$ans" in
	n*|N*) echo "OK, I'll ignore it.";;
	*)  echo "Fetching default answers from your old config.sh file..." >&4
		tmp_n="$n"
		tmp_c="$c"
		. ../config.sh
		cp ../config.sh .
		n="$tmp_n"
		c="$tmp_c"
		hint=previous
		;;
	esac
fi
@end
?X: remember, indentation is wrong--RAM
;;
*)
	echo " "
	echo "Fetching default answers from $config_sh..." >&4
	tmp_n="$n"
	tmp_c="$c"
	cd ..
?X: preserve symbolic links, if any
	cp $config_sh config.sh 2>/dev/null
	chmod +w config.sh
	. ./config.sh
	cd UU
	cp ../config.sh .
	n="$tmp_n"
	c="$tmp_c"
	hint=previous
	;;
esac
test "$override" && . ./optdef.sh
myuname="$newmyuname"

: Restore computed paths
for file in $loclist $trylist; do
	eval $file="\$_$file"
done

@if osname || osvers
cat << EOM

Configure uses the operating system name and version to set some defaults.
The default value is probably right if the name rings a bell. Otherwise,
since spelling matters for me, either accept the default or answer "none"
to leave it blank.

EOM
@end
@if osname
case "$osname" in
	''|' ')
		case "$hintfile" in
		''|' '|none) dflt=none ;;
		*)  dflt=`echo $hintfile | $sed -e 's/\.sh$//' -e 's/_.*$//'` ;;
		esac
		;;
	*) dflt="$osname" ;;
esac
rp="Operating system name?"
. ./myread
case "$ans" in
none)  osname='' ;;
*) osname=`echo "$ans" | $sed -e 's/[ 	][	]*/_/g' | ./tr '[A-Z]' '[a-z]'`;;
esac
@end
@if osvers
@if osname
echo " "
@end
case "$osvers" in
	''|' ')
		case "$hintfile" in
		''|' '|none) dflt=none ;;
		*)	dflt=`echo $hintfile | $sed -e 's/\.sh$//' -e 's/^[^_]*//'`
			dflt=`echo $dflt | $sed -e 's/^_//' -e 's/_/./g'`
			case "$dflt" in
			''|' ') dflt=none ;;
			esac
			;;
		esac
		;;
	*) dflt="$osvers" ;;
esac
rp="Operating system version?"
. ./myread
case "$ans" in
none)  osvers='' ;;
*) osvers="$ans" ;;
esac

@end

. ./posthint.sh
Commit	Line	Data
959f3c4c JH	1	?RCS: $Id: Oldconfig.U,v 3.0.1.10 1997/02/28 15:06:39 ram Exp $
	2	?RCS:
	3	?RCS: Copyright (c) 1991-1993, Raphael Manfredi
	4	?RCS:
	5	?RCS: You may redistribute only under the terms of the Artistic Licence,
	6	?RCS: as specified in the README file that comes with the distribution.
	7	?RCS: You may reuse parts of this distribution only within the terms of
	8	?RCS: that same Artistic Licence; a copy of which may be found at the root
	9	?RCS: of the source tree for dist 3.0.
	10	?RCS:
	11	?RCS: $Log: Oldconfig.U,v $
	12	?RCS: Revision 3.0.1.10 1997/02/28 15:06:39 ram
	13	?RCS: patch61: added support for src.U
	14	?RCS: patch61: new OSNAME define
	15	?RCS: patch61: can now sense new OSes
	16	?RCS:
	17	?RCS: Revision 3.0.1.9 1995/07/25 13:40:51 ram
	18	?RCS: patch56: now knows about OS/2 platforms
	19	?RCS:
	20	?RCS: Revision 3.0.1.8 1995/05/12 12:04:18 ram
	21	?RCS: patch54: config.sh reload logic now knows about new -K switch
	22	?RCS: patch54: cleaned up and extended osvers for DEC OSF/1 (ADO)
	23	?RCS: patch54: added MachTen detection (ADO)
	24	?RCS:
	25	?RCS: Revision 3.0.1.7 1995/02/15 14:13:41 ram
	26	?RCS: patch51: adapted osvers computation for AIX (ADO)
	27	?RCS:
	28	?RCS: Revision 3.0.1.6 1995/01/30 14:27:15 ram
	29	?RCS: patch49: unit Options.U now exports file optdef.sh, not a variable
	30	?RCS: patch49: update code for myuname changed (WED)
	31	?RCS:
	32	?RCS: Revision 3.0.1.5 1995/01/11 15:15:36 ram
	33	?RCS: patch45: added quotes around the INITPROG variable (ADO)
	34	?RCS: patch45: allows variable overriding after config file loading
	35	?RCS:
	36	?RCS: Revision 3.0.1.4 1994/10/29 15:57:05 ram
	37	?RCS: patch36: added ?F: line for metalint file checking
	38	?RCS: patch36: merged with the version used for perl5's Configure (ADO)
	39	?RCS:
	40	?RCS: Revision 3.0.1.3 1994/05/06 14:24:17 ram
	41	?RCS: patch23: added support for osf1 hints
	42	?RCS: patch23: new support for solaris and i386 systems (ADO)
	43	?RCS:
	44	?RCS: Revision 3.0.1.2 1994/01/24 14:05:02 ram
	45	?RCS: patch16: added post-processing on myuname for Xenix targets
	46	?RCS: patch16: message proposing config.sh defaults made consistent
	47	?RCS:
	48	?RCS: Revision 3.0.1.1 1993/09/13 15:56:32 ram
	49	?RCS: patch10: force use of config.sh when -d option is used (WAD)
	50	?RCS: patch10: complain about non-existent hint files (WAD)
	51	?RCS: patch10: added Options dependency for fastread variable
	52	?RCS:
	53	?RCS: Revision 3.0 1993/08/18 12:05:12 ram
	54	?RCS: Baseline for dist 3.0 netwide release.
	55	?RCS:
	56	?X:
	57	?X: This unit tries to remember what we did last time we ran Configure, mostly
	58	?X: for the sake of setting defaults.
	59	?X:
	60	?MAKE:Oldconfig hint myuname osname osvers: Instruct Myread uname \
	61	sh awk sed test cat rm lns tr n c contains Loc Options Tr src trnl ln
	62	?MAKE: -pick wipe $@ %<
	63	?S:myuname:
	64	?S: The output of 'uname -a' if available, otherwise the hostname. On Xenix,
65	?S: pseudo variables assignments in the output are stripped, thank you. The
66	?S: whole thing is then lower-cased.
67	?S:.
68	?S:hint:
69	?S: Gives the type of hints used for previous answers. May be one of
70	?S: "default", "recommended" or "previous".
71	?S:.
72	?S:osname:
73	?S: This variable contains the operating system name (e.g. sunos,
74	?S: solaris, hpux, etc.). It can be useful later on for setting
75	?S: defaults. Any spaces are replaced with underscores. It is set
76	?S: to a null string if we can't figure it out.
77	?S:.
78	?S:osvers:
79	?S: This variable contains the operating system version (e.g.
80	?S: 4.1.3, 5.2, etc.). It is primarily used for helping select
81	?S: an appropriate hints file, but might be useful elsewhere for
82	?S: setting defaults. It is set to '' if we can't figure it out.
83	?S: We try to be flexible about how much of the version number
84	?S: to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
85	?S: same for this package, hints files might just be os_4.0 or
86	?S: os_4.1, etc., not keeping separate files for each little release.
87	?S:.
88	?C:OSNAME:
89	?C: This symbol contains the name of the operating system, as determined
90	?C: by Configure. You shouldn't rely on it too much; the specific
91	?C: feature tests from Configure are generally more reliable.
92	?C:.
93	?H:#define OSNAME "$osname" /**/
94	?H:.
95	?F:!config.sh
96	?T:tmp tmp_n tmp_c tmp_sh file
97	?T:xxxxfile xxxfile xxfile xfile hintfile newmyuname
98	?T:tans _ isesix INITPROG DJGPP
99	?D:osname=''
100	?LINT:change n c sh
101	: Try to determine whether config.sh was made on this system
102	case "$config_sh" in
103	'')
104	?X: indentation wrong on purpose--RAM
105	?X: Leave a white space between first two '(' for ksh. The sub-shell is needed
106	?X: on some machines to avoid the error message when uname is not found; e.g.
107	?X: old SUN-OS 3.2 would not execute hostname in (uname -a \|\| hostname). Sigh!
108	myuname=`( ($uname -a) 2>/dev/null \|\| hostname) 2>&1`
109	?X: Special mention for Xenix, whose 'uname -a' gives us output like this:
110	?X: sysname=XENIX
111	?X: nodename=whatever
112	?X: release=2.3.2 .. etc...
113	?X: Therefore, we strip all this variable assignment junk and remove all the
114	?X: new lines to keep the myuname variable sane... --RAM
115	# tr '[A-Z]' '[a-z]' would not work in EBCDIC
116	# because the A-Z/a-z are not consecutive.
117	myuname=`echo $myuname \| $sed -e 's/^[^=]*=//' -e 's/\///g' \| \
118	./tr '[A-Z]' '[a-z]' \| $tr $trnl ' '`
119	?X: Save the value we just computed to reset myuname after we get done here.
120	newmyuname="$myuname"
121	dflt=n
122	case "$knowitall" in
123	'')
124	if test -f ../config.sh; then
125	if $contains myuname= ../config.sh >/dev/null 2>&1; then
126	eval "`grep myuname= ../config.sh`"
127	fi
128	if test "X$myuname" = "X$newmyuname"; then
129	dflt=y
130	fi
131	fi
132	;;
133	*) dflt=y;;
134	esac
135
136	@if {test -d ../hints}
137	: Get old answers from old config file if Configure was run on the
138	: same system, otherwise use the hints.
139	hint=default
140	cd ..
141	?X: Since we are now at the root of the source tree, we must use $src
142	?X: to access the sources and not $rsrc. See src.U for details...
143	if test -f config.sh; then
144	echo " "
145	rp="I see a config.sh file. Shall I use it to set the defaults?"
146	. UU/myread
147	case "$ans" in
148	n\|N) echo "OK, I'll ignore it."; mv config.sh config.sh.old;;
149	*) echo "Fetching default answers from your old config.sh file..." >&4
150	tmp_n="$n"
151	tmp_c="$c"
152	tmp_sh="$sh"
153	. ./config.sh
154	cp config.sh UU
155	n="$tmp_n"
156	c="$tmp_c"
157	: Older versions did not always set $sh. Catch re-use of such
158	: an old config.sh.
159	case "$sh" in
160	'') sh="$tmp_sh" ;;
161	esac
162	hint=previous
163	;;
164	esac
165	fi
166	if test ! -f config.sh; then
167	$cat <<EOM
168
169	First time through, eh? I have some defaults handy for some systems
170	that need some extra help getting the Configure answers right:
171
172	EOM
173	(cd $src/hints; ls -C *.sh) \| $sed 's/\.sh/ /g' >&4
174	dflt=''
175	: Half the following guesses are probably wrong... If you have better
176	: tests or hints, please send them to <MAINTLOC>
177	: The metaconfig authors would also appreciate a copy...
178	$test -f /irix && osname=irix
179	$test -f /xenix && osname=sco_xenix
180	$test -f /dynix && osname=dynix
181	$test -f /dnix && osname=dnix
182	$test -f /lynx.os && osname=lynxos
183	$test -f /unicos && osname=unicos && osvers=`$uname -r`
184	$test -f /unicosmk.ar && osname=unicosmk && osvers=`$uname -r`
185	$test -f /bin/mips && /bin/mips && osname=mips
186	$test -d /NextApps && set X `hostinfo \| grep 'NeXT Mach.*:' \| \
187	$sed -e 's/://' -e 's/\./_/'` && osname=next && osvers=$4
188	$test -d /usr/apollo/bin && osname=apollo
189	$test -f /etc/saf/_sactab && osname=svr4
190	$test -d /usr/include/minix && osname=minix
191	if $test -d /MachTen -o -d /MachTen_Folder; then
192	?X: MachTen uname -a output looks like
193	?X: xxx 4 0.0 Macintosh
194	?X: MachTen /sbin/version output looks like
195	?X: MachTen 4.0 Mon Aug 28 10:18:00 1995
196	?X: MachTen 3.x had the 'version' command in /usr/etc/version.
197	osname=machten
198	if $test -x /sbin/version; then
199	osvers=`/sbin/version \| $awk '{print $2}' \|
200	$sed -e 's/[A-Za-z]$//'`
201	elif $test -x /usr/etc/version; then
202	osvers=`/usr/etc/version \| $awk '{print $2}' \|
203	$sed -e 's/[A-Za-z]$//'`
204	else
205	osvers="$2.$3"
206	fi
207	fi
208	$test -f /sys/posix.dll &&
209	$test -f /usr/bin/what &&
210	set X `/usr/bin/what /sys/posix.dll` &&
211	$test "$3" = UWIN &&
212	osname=uwin &&
213	osvers="$5"
214	?X: If we have uname, we already computed a suitable uname -a output, correctly
215	?X: formatted for Xenix, and it lies in $myuname.
216	if $test -f $uname; then
217	set X $myuname
218	shift
219
220	case "$5" in
221	fps*) osname=fps ;;
222	mips*)
223	case "$4" in
224	umips) osname=umips ;;
225	*) osname=mips ;;
226	esac;;
227	[23]100) osname=mips ;;
228	next*) osname=next ;;
229	?X: Interactive Unix.
230	i386*)
231	tmp=`/bin/uname -X 2>/dev/null\|awk '/3\.2v[45]/{ print $(NF) }'`
232	if $test "$tmp" != "" -a "$3" = "3.2" -a -f '/etc/systemid'; then
233	osname='sco'
234	osvers=$tmp
235	elif $test -f /etc/kconfig; then
236	osname=isc
237	if test "$lns" = "$ln -s"; then
238	osvers=4
239	elif $contains _SYSV3 /usr/include/stdio.h > /dev/null 2>&1 ; then
240	osvers=3
241	elif $contains _POSIX_SOURCE /usr/include/stdio.h > /dev/null 2>&1 ; then
242	osvers=2
243	fi
244	fi
245	tmp=''
246	;;
247	?X: MS-DOS djgpp uname -a output looks like:
248	?X: ms-dos xxx 6 22 pc
249	?X: $1 is the "dos flavor" (need not be "ms-dos").
250	?X: $2 is the node name
251	?X: $3 and $4 are version/subversion
252	?X: $5 is always "pc", but that might not be unique to DJGPP.
253	?X: (e.g. Solaris_x86 has $5 = i86pc, which doesn't actually conflict,
254	?X: but it's close enought that I can easily imagine other vendors also
255	?X: using variants of pc* in $5.)
256	?X: The "DJGPP" environment variable is always set when djgpp is active.
257	pc*)
258	if test -n "$DJGPP"; then
259	osname=dos
260	osvers=djgpp
261	fi
262	;;
263	esac
264
265	case "$1" in
266	aix) osname=aix
267	?X: aix 4.1 uname -a output looks like
268	?X: AIX foo 1 4 000123456789
269	?X: where $4 is the major release number and $3 is the (minor) version.
270	?X: More detail on the version is available with the oslevel command.
271	?X: in 3.2.x, it output a string (see case statements below). In 4.1,
272	?X: it puts out something like 4.1.1.0
273	tmp=`( (oslevel) 2>/dev/null \|\| echo "not found") 2>&1`
274	case "$tmp" in
275	'not found') osvers="$4"."$3" ;;
276	'<3240'\|'<>3240') osvers=3.2.0 ;;
277	'=3240'\|'>3240'\|'<3250'\|'<>3250') osvers=3.2.4 ;;
278	'=3250'\|'>3250') osvers=3.2.5 ;;
279	*) osvers=$tmp;;
280	esac
281	;;
282	*dc.osx) osname=dcosx
283	osvers="$3"
284	;;
285	dnix) osname=dnix
286	osvers="$3"
287	;;
288	domainos) osname=apollo
289	osvers="$3"
290	;;
291	dgux) osname=dgux
292	osvers="$3"
293	;;
294	?X: uname -a returns
295	?X: DYNIX/ptx xxx 4.0 V4.1.2 i386
296	dynixptx*) osname=dynixptx
297	osvers=`echo "$4"\|sed 's/^v//'`
298	;;
299	freebsd) osname=freebsd
300	osvers="$3" ;;
301	genix) osname=genix ;;
302	?X: HP-UX uname -a gives something like
303	?X: HP-UX foobar B.10.20 A 9000/735 2016483812 two-user license
304	?X: Preserve the full 10.20 string instead of the previous plain '10'.
305	?X: Thanks to Graham Barr. --AD 6/30/1998
306	hp*) osname=hpux
307	osvers=`echo "$3" \| $sed 's,.\.\([0-9]\.[0-9]*\),\1,'`
308	;;
309	irix*) osname=irix
310	case "$3" in
311	4*) osvers=4 ;;
312	5*) osvers=5 ;;
313	*) osvers="$3" ;;
314	esac
315	;;
316	linux) osname=linux
317	case "$3" in
318	*) osvers="$3" ;;
319	esac
320	;;
321	MiNT) osname=mint
322	;;
323	netbsd*) osname=netbsd
324	osvers="$3"
325	;;
326	news-os) osvers="$3"
327	case "$3" in
328	4*) osname=newsos4 ;;
329	*) osname=newsos ;;
330	esac
331	;;
332	bsd386) osname=bsd386
333	osvers=`$uname -r`
334	;;
335	POSIX-BC \| posix-bc ) osname=posix-bc
336	osvers="$3"
337	;;
338	powerux \| power_ux \| powermax_os \| powermaxos \| \
339	powerunix \| power_unix) osname=powerux
340	osvers="$3"
341	;;
342	next*) osname=next ;;
343	solaris) osname=solaris
344	case "$3" in
345	5*) osvers=`echo $3 \| $sed 's/^5/2/g'` ;;
346	*) osvers="$3" ;;
347	esac
348	;;
349	sunos) osname=sunos
350	case "$3" in
351	5*) osname=solaris
352	osvers=`echo $3 \| $sed 's/^5/2/g'` ;;
353	*) osvers="$3" ;;
354	esac
355	;;
356	titanos) osname=titanos
357	case "$3" in
358	1*) osvers=1 ;;
359	2*) osvers=2 ;;
360	3*) osvers=3 ;;
361	4*) osvers=4 ;;
362	*) osvers="$3" ;;
363	esac
364	;;
365	ultrix) osname=ultrix
366	osvers="$3"
367	;;
368	osf1\|mls+) case "$5" in
369	alpha)
370	?X: DEC OSF/1 myuname -a output looks like: osf1 xxxx t3.2 123.4 alpha
371	?X: where the version number can be something like [xvt]n.n
372	osname=dec_osf
373	osvers=`echo "$3" \| sed 's/^[xvt]//'`
374	;;
375	hp*) osname=hp_osf1 ;;
376	mips) osname=mips_osf1 ;;
377	?X: hp and mips were unsupported Technology Releases -- ADO, 24/10/94
378	esac
379	;;
380	uts) osname=uts
381	osvers="$3"
382	;;
383	qnx) osname=qnx
384	osvers="$4"
385	;;
386	$2) case "$osname" in
387	isc) ;;
388	freebsd) ;;
389	svr*)
390	: svr4.x or possibly later
391	case "svr$3" in
392	${osname}*)
393	osname=svr$3
394	osvers=$4
395	;;
396	esac
397	case "$osname" in
398	svr4.0)
399	: Check for ESIX
400	if test -f /stand/boot ; then
401	eval `grep '^INITPROG=[a-z/0-9]*$' /stand/boot`
402	if test -n "$INITPROG" -a -f "$INITPROG"; then
403	isesix=`strings -a $INITPROG\|grep 'ESIX SYSTEM V/386 Release 4.0'`
404	if test -n "$isesix"; then
405	osname=esix4
406	fi
407	fi
408	fi
409	;;
410	esac
411	;;
412	*) if test -f /etc/systemid; then
413	osname=sco
414	set `echo $3 \| $sed 's/\./ /g'` $4
415	if $test -f $src/hints/sco_$1_$2_$3.sh; then
416	osvers=$1.$2.$3
417	elif $test -f $src/hints/sco_$1_$2.sh; then
418	osvers=$1.$2
419	elif $test -f $src/hints/sco_$1.sh; then
420	osvers=$1
421	fi
422	else
423	case "$osname" in
424	'') : Still unknown. Probably a generic Sys V.
425	osname="sysv"
426	osvers="$3"
427	;;
428	esac
429	fi
430	;;
431	esac
432	;;
433	*) case "$osname" in
434	'') : Still unknown. Probably a generic BSD.
435	osname="$1"
436	osvers="$3"
437	;;
438	esac
439	;;
440	esac
441	else
442	?X: Try to identify sony's NEWS-OS (BSD unix)
443	if test -f /vmunix -a -f $src/hints/news_os.sh; then
444	(what /vmunix \| UU/tr '[A-Z]' '[a-z]') > UU/kernel.what 2>&1
445	if $contains news-os UU/kernel.what >/dev/null 2>&1; then
446	osname=news_os
447	fi
448	$rm -f UU/kernel.what
449	?X: Maybe it's OS/2 or DOS or something similar
450	elif test -d c:/.; then
451	set X $myuname
452	osname=os2
453	osvers="$5"
454	fi
455	fi
456
457	: Now look for a hint file osname_osvers, unless one has been
458	: specified already.
459	case "$hintfile" in
460	''\|' ')
461	file=`echo "${osname}_${osvers}" \| $sed -e 's@\.@_@g' -e 's@_$@@'`
462	: Also try without trailing minor version numbers.
463	xfile=`echo $file \| $sed -e 's@_[^_]*$@@'`
464	xxfile=`echo $xfile \| $sed -e 's@_[^_]*$@@'`
465	xxxfile=`echo $xxfile \| $sed -e 's@_[^_]*$@@'`
466	xxxxfile=`echo $xxxfile \| $sed -e 's@_[^_]*$@@'`
467	case "$file" in
468	'') dflt=none ;;
469	*) case "$osvers" in
470	'') dflt=$file
471	;;
472	*) if $test -f $src/hints/$file.sh ; then
473	dflt=$file
474	elif $test -f $src/hints/$xfile.sh ; then
475	dflt=$xfile
476	elif $test -f $src/hints/$xxfile.sh ; then
477	dflt=$xxfile
478	elif $test -f $src/hints/$xxxfile.sh ; then
479	dflt=$xxxfile
480	elif $test -f $src/hints/$xxxxfile.sh ; then
481	dflt=$xxxxfile
482	elif $test -f "$src/hints/${osname}.sh" ; then
483	dflt="${osname}"
484	else
485	dflt=none
486	fi
487	;;
488	esac
489	;;
490	esac
491	if $test -f Policy.sh ; then
492	case "$dflt" in
493	Policy) ;;
494	none) dflt="Policy" ;;
495	*) dflt="Policy $dflt" ;;
496	esac
497	fi
498	;;
499	*)
500	dflt=`echo $hintfile \| $sed 's/\.sh$//'`
501	;;
502	esac
503
504	if $test -f Policy.sh ; then
505	$cat <<EOM
506
507	There's also a Policy hint file available, which should make the
508	site-specific (policy) questions easier to answer.
509	EOM
510
511	fi
512
513	$cat <<EOM
514
515	You may give one or more space-separated answers, or "none" if appropriate.
516	A well-behaved OS will have no hints, so answering "none" or just "Policy"
86a2f2c4	517	is a good thing. DO NOT give a wrong version or a wrong OS.
959f3c4c JH	518
	519	EOM
	520
	521	rp="Which of these apply, if any?"
	522	. UU/myread
	523	tans=$ans
	524	for file in $tans; do
	525	if $test X$file = XPolicy -a -f Policy.sh; then
	526	. Policy.sh
	527	$cat Policy.sh >> UU/config.sh
	528	elif $test -f $src/hints/$file.sh; then
	529	. $src/hints/$file.sh
	530	$cat $src/hints/$file.sh >> UU/config.sh
	531	elif $test X$tans = X -o X$tans = Xnone ; then
	532	: nothing
	533	else
	534	: Give one chance to correct a possible typo.
	535	echo "$file.sh does not exist"
	536	dflt=$file
	537	rp="hint to use instead?"
	538	. UU/myread
	539	for file in $ans; do
	540	if $test -f "$src/hints/$file.sh"; then
	541	. $src/hints/$file.sh
	542	$cat $src/hints/$file.sh >> UU/config.sh
	543	elif $test X$ans = X -o X$ans = Xnone ; then
	544	: nothing
	545	else
	546	echo "$file.sh does not exist -- ignored."
	547	fi
	548	done
	549	fi
	550	done
	551
	552	hint=recommended
	553	: Remember our hint file for later.
	554	if $test -f "$src/hints/$file.sh" ; then
	555	hintfile="$file"
	556	else
	557	hintfile=''
	558	fi
	559	fi
	560	cd UU
	561	?X: From here on, we must use $rsrc instead of $src
	562	@else
	563	: Get old answers, if there is a config file out there
	564	hint=default
	565	hintfile=''
	566	if test -f ../config.sh; then
	567	echo " "
	568	rp="I see a config.sh file. Shall I use it to set the defaults?"
	569	. ./myread
	570	case "$ans" in
	571	n\|N) echo "OK, I'll ignore it.";;
	572	*) echo "Fetching default answers from your old config.sh file..." >&4
	573	tmp_n="$n"
	574	tmp_c="$c"
	575	. ../config.sh
	576	cp ../config.sh .
	577	n="$tmp_n"
	578	c="$tmp_c"
	579	hint=previous
	580	;;
	581	esac
582	fi
583	@end
584	?X: remember, indentation is wrong--RAM
585	;;
586	*)
587	echo " "
588	echo "Fetching default answers from $config_sh..." >&4
589	tmp_n="$n"
590	tmp_c="$c"
591	cd ..
592	?X: preserve symbolic links, if any
593	cp $config_sh config.sh 2>/dev/null
594	chmod +w config.sh
595	. ./config.sh
596	cd UU
597	cp ../config.sh .
598	n="$tmp_n"
599	c="$tmp_c"
600	hint=previous
601	;;
602	esac
603	test "$override" && . ./optdef.sh
604	myuname="$newmyuname"
605
606	: Restore computed paths
607	for file in $loclist $trylist; do
608	eval $file="\$_$file"
609	done
610
611	@if osname \|\| osvers
612	cat << EOM
613
614	Configure uses the operating system name and version to set some defaults.
615	The default value is probably right if the name rings a bell. Otherwise,
616	since spelling matters for me, either accept the default or answer "none"
617	to leave it blank.
618
619	EOM
620	@end
621	@if osname
622	case "$osname" in
623	''\|' ')
624	case "$hintfile" in
625	''\|' '\|none) dflt=none ;;
626	) dflt=`echo $hintfile \| $sed -e 's/\.sh$//' -e 's/_.$//'` ;;
627	esac
628	;;
629	*) dflt="$osname" ;;
630	esac
631	rp="Operating system name?"
632	. ./myread
633	case "$ans" in
634	none) osname='' ;;
635	) osname=`echo "$ans" \| $sed -e 's/[ ][ ]/_/g' \| ./tr '[A-Z]' '[a-z]'`;;
636	esac
637	@end
638	@if osvers
639	@if osname
640	echo " "
641	@end
642	case "$osvers" in
643	''\|' ')
644	case "$hintfile" in
645	''\|' '\|none) dflt=none ;;
646	) dflt=`echo $hintfile \| $sed -e 's/\.sh$//' -e 's/^[^_]//'`
647	dflt=`echo $dflt \| $sed -e 's/^_//' -e 's/_/./g'`
648	case "$dflt" in
649	''\|' ') dflt=none ;;
650	esac
651	;;
652	esac
653	;;
654	*) dflt="$osvers" ;;
655	esac
656	rp="Operating system version?"
657	. ./myread
658	case "$ans" in
659	none) osvers='' ;;
660	*) osvers="$ans" ;;
661	esac
662
663	@end
c71449a6 JH	664
	665	. ./posthint.sh
	666