+: decide how portable to be. Allow command line overrides.
+case "$d_portable" in
+"$undef") ;;
+*) d_portable="$define" ;;
+esac
+
+: set up shell script to do ~ expansion
+cat >filexp <<EOSS
+$startsh
+: expand filename
+case "\$1" in
+ ~/*|~)
+ echo \$1 | $sed "s|~|\${HOME-\$LOGDIR}|"
+ ;;
+ ~*)
+ if $test -f /bin/csh; then
+ /bin/csh -f -c "glob \$1"
+ failed=\$?
+ echo ""
+ exit \$failed
+ else
+ name=\`$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
+$eunicefix filexp
+
+: now set up to get a file name
+cat <<'EOSC' >getfile
+tilde=''
+fullpath=''
+already=''
+skip=''
+none_ok=''
+exp_file=''
+nopath_ok=''
+orig_rp="$rp"
+orig_dflt="$dflt"
+
+case "$fn" in
+*\(*)
+ expr $fn : '.*(\(.*\)).*' | tr ',' '\012' >getfile.ok
+ fn=`echo $fn | sed 's/(.*)//'`
+ ;;
+esac
+
+case "$fn" in
+*:*)
+ loc_file=`expr $fn : '.*:\(.*\)'`
+ fn=`expr $fn : '\(.*\):.*'`
+ ;;
+esac
+
+case "$fn" in
+*~*) tilde=true;;
+esac
+case "$fn" in
+*/*) fullpath=true;;
+esac
+case "$fn" in
+*+*) skip=true;;
+esac
+case "$fn" in
+*n*) none_ok=true;;
+esac
+case "$fn" in
+*e*) exp_file=true;;
+esac
+case "$fn" in
+*p*) nopath_ok=true;;
+esac
+
+case "$fn" in
+*f*) type='File';;
+*d*) type='Directory';;
+*l*) type='Locate';;
+esac
+
+what="$type"
+case "$what" in
+Locate) what='File';;
+esac
+
+case "$exp_file" in
+'')
+ case "$d_portable" in
+ "$define") ;;
+ *) exp_file=true;;
+ esac
+ ;;
+esac
+
+cd ..
+while test "$type"; do
+ redo=''
+ rp="$orig_rp"
+ dflt="$orig_dflt"
+ case "$tilde" in
+ true) rp="$rp (~name ok)";;
+ esac
+ . UU/myread
+ if test -f UU/getfile.ok && \
+ $contains "^$ans\$" UU/getfile.ok >/dev/null 2>&1
+ then
+ value="$ans"
+ ansexp="$ans"
+ break
+ fi
+ case "$ans" in
+ none)
+ value=''
+ ansexp=''
+ case "$none_ok" in
+ true) type='';;
+ esac
+ ;;
+ *)
+ case "$tilde" in
+ '') value="$ans"
+ ansexp="$ans";;
+ *)
+ value=`UU/filexp $ans`
+ case $? in
+ 0)
+ if test "$ans" != "$value"; then
+ echo "(That expands to $value on this system.)"
+ fi
+ ;;
+ *) value="$ans";;
+ esac
+ ansexp="$value"
+ case "$exp_file" in
+ '') value="$ans";;
+ esac
+ ;;
+ esac
+ case "$fullpath" in
+ true)
+ case "$ansexp" in
+ /*) value="$ansexp" ;;
+ *)
+ redo=true
+ case "$already" in
+ true)
+ echo "I shall only accept a full path name, as in /bin/ls." >&4
+ echo "Use a ! shell escape if you wish to check pathnames." >&4
+ ;;
+ *)
+ echo "Please give a full path name, starting with slash." >&4
+ case "$tilde" in
+ true)
+ echo "Note that using ~name is ok provided it expands well." >&4
+ already=true
+ ;;
+ esac
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ case "$redo" in
+ '')
+ case "$type" in
+ File)
+ if test -f "$ansexp"; then
+ type=''
+ elif test -r "$ansexp" || (test -h "$ansexp") >/dev/null 2>&1
+ then
+ echo "($value is not a plain file, but that's ok.)"
+ type=''
+ fi
+ ;;
+ Directory)
+ if test -d "$ansexp"; then
+ type=''
+ fi
+ ;;
+ Locate)
+ if test -d "$ansexp"; then
+ echo "(Looking for $loc_file in directory $value.)"
+ value="$value/$loc_file"
+ ansexp="$ansexp/$loc_file"
+ fi
+ if test -f "$ansexp"; then
+ type=''
+ fi
+ case "$nopath_ok" in
+ true) case "$value" in
+ */*) ;;
+ *) echo "Assuming $value will be in people's path."
+ type=''
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+
+ case "$skip" in
+ true) type='';
+ esac
+
+ case "$type" in
+ '') ;;
+ *)
+ if test "$fastread" = yes; then
+ dflt=y
+ else
+ dflt=n
+ fi
+ rp="$what $value doesn't exist. Use that name anyway?"
+ . UU/myread
+ dflt=''
+ case "$ans" in
+ y*) type='';;
+ *) echo " ";;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+done
+cd UU
+ans="$value"
+rp="$orig_rp"
+dflt="$orig_dflt"
+rm -f getfile.ok
+EOSC
+
+: determine root of directory hierarchy where package will be installed.
+case "$prefix" in
+'')
+ dflt=`./loc . /usr/local /usr/local /local /opt /usr`
+ ;;
+*)
+ dflt="$prefix"
+ ;;
+esac
+$cat <<EOM
+
+By default, $package will be installed in $dflt/bin, manual
+pages under $dflt/man, etc..., i.e. with $dflt as prefix for
+all installation directories. Typically set to /usr/local, but you
+may choose /usr if you wish to install $package among your system
+binaries. If you wish to have binaries under /bin but manual pages
+under /usr/local/man, that's ok: you will be prompted separately
+for each of the installation directories, the prefix being only used
+to set the defaults.
+
+EOM
+fn=d~
+rp='Installation prefix to use?'
+. ./getfile
+oldprefix=''
+case "$prefix" in
+'') ;;
+*)
+ case "$ans" in
+ "$prefix") ;;
+ *) oldprefix="$prefix";;
+ esac
+ ;;
+esac
+prefix="$ans"
+prefixexp="$ansexp"
+
+: set the prefixit variable, to compute a suitable default value
+prefixit='case "$3" in
+""|none)
+ case "$oldprefix" in
+ "") eval "$1=\"\$$2\"";;
+ *)
+ case "$3" in
+ "") eval "$1=";;
+ none)
+ eval "tp=\"\$$2\"";
+ case "$tp" in
+ ""|" ") eval "$1=\"\$$2\"";;
+ *) eval "$1=";;
+ esac;;
+ esac;;
+ esac;;
+*)
+ eval "tp=\"$oldprefix-\$$2-\""; eval "tp=\"$tp\"";
+ case "$tp" in
+ --|/*--|\~*--) eval "$1=\"$prefix/$3\"";;
+ /*-$oldprefix/*|\~*-$oldprefix/*)
+ eval "$1=\`echo \$$2 | sed \"s,^$oldprefix,$prefix,\"\`";;
+ *) eval "$1=\"\$$2\"";;
+ esac;;
+esac'
+
+: determine where private library files go
+: Usual default is /usr/local/lib/perl5. Also allow things like
+: /opt/perl/lib, since /opt/perl/lib/perl5 would be redundant.
+case "$prefix" in
+*perl*) set dflt privlib lib ;;
+*) set dflt privlib lib/$package ;;
+esac
+eval $prefixit
+$cat <<EOM
+
+There are some auxiliary files for $package that need to be put into a
+private library directory that is accessible by everyone.
+
+EOM
+fn=d~+
+rp='Pathname where the private library files will reside?'
+. ./getfile
+if $test "X$privlibexp" != "X$ansexp"; then
+ installprivlib=''
+fi
+privlib="$ans"
+privlibexp="$ansexp"
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+private files reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installprivlib" in
+ '') dflt=`echo $privlibexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installprivlib";;
+ esac
+ fn=de~
+ rp='Where will private files be installed?'
+ . ./getfile
+ installprivlib="$ans"
+else
+ installprivlib="$privlibexp"
+fi
+
+: set the base revision
+baserev=5.0
+
+: get the patchlevel
+echo " "
+echo "Getting the current patchlevel..." >&4
+if $test -r ../patchlevel.h;then
+ patchlevel=`awk '/PATCHLEVEL/ {print $3}' < ../patchlevel.h`
+ subversion=`awk '/SUBVERSION/ {print $3}' < ../patchlevel.h`
+else
+ patchlevel=0
+ subversion=0
+fi
+echo "(You have $package $baserev PL$patchlevel sub$subversion.)"
+
+: set the prefixup variable, to restore leading tilda escape
+prefixup='case "$prefixexp" in
+"$prefix") ;;
+*) eval "$1=\`echo \$$1 | sed \"s,^$prefixexp,$prefix,\"\`";;
+esac'
+
+: determine where public architecture dependent libraries go
+set archlib archlib
+eval $prefixit
+case "$archlib" in
+'')
+ case "$privlib" in
+ '')
+ dflt=`./loc . "." $prefixexp/lib /usr/local/lib /usr/lib /lib`
+ set dflt
+ eval $prefixup
+ ;;
+ *) version=`echo $baserev $patchlevel $subversion | \
+ $awk '{print $1 + $2/1000.0 + $3/100000.0}'`
+ dflt="$privlib/$archname/$version"
+ ;;
+ esac
+ ;;
+*) dflt="$archlib";;
+esac
+cat <<EOM
+
+$spackage contains architecture-dependent library files. If you are
+sharing libraries in a heterogeneous environment, you might store
+these files in a separate location. Otherwise, you can just include
+them with the rest of the public library files.
+
+EOM
+fn=d+~
+rp='Where do you want to put the public architecture-dependent libraries?'
+. ./getfile
+archlib="$ans"
+archlibexp="$ansexp"
+
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+private files reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installarchlib" in
+ '') dflt=`echo $archlibexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installarchlib";;
+ esac
+ fn=de~
+ rp='Where will architecture-dependent library files be installed?'
+ . ./getfile
+ installarchlib="$ans"
+else
+ installarchlib="$archlibexp"
+fi
+if $test X"$archlib" = X"$privlib"; then
+ d_archlib="$undef"
+else
+ d_archlib="$define"
+fi
+
+: set up the script used to warn in case of inconsistency
+cat <<'EOSC' >whoa
+dflt=y
+echo " "
+echo "*** WHOA THERE!!! ***" >&4
+echo " The $hint value for \$$var on this machine was \"$was\"!" >&4
+rp=" Keep the $hint value?"
+. ./myread
+case "$ans" in
+y) td=$was; tu=$was;;
+esac
+EOSC
+
+: function used to set $1 to $val
+setvar='var=$1; eval "was=\$$1"; td=$define; tu=$undef;
+case "$val$was" in
+$define$undef) . ./whoa; eval "$var=\$td";;
+$undef$define) . ./whoa; eval "$var=\$tu";;
+*) eval "$var=$val";;
+esac'
+
+: make some quick guesses about what we are up against
+echo " "
+$echo $n "Hmm... $c"
+echo exit 1 >bsd
+echo exit 1 >usg
+echo exit 1 >v7
+echo exit 1 >osf1
+echo exit 1 >eunice
+echo exit 1 >xenix
+echo exit 1 >venix
+d_bsd="$undef"
+$cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
+if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1
+then
+ echo "Looks kind of like an OSF/1 system, but we'll see..."
+ echo exit 0 >osf1
+elif test `echo abc | tr a-z A-Z` = Abc ; then
+ xxx=`./loc addbib blurfl $pth`
+ if $test -f $xxx; then
+ echo "Looks kind of like a USG system with BSD features, but we'll see..."
+ echo exit 0 >bsd
+ echo exit 0 >usg
+ else
+ if $contains SIGTSTP foo >/dev/null 2>&1 ; then
+ echo "Looks kind of like an extended USG system, but we'll see..."
+ else
+ echo "Looks kind of like a USG system, but we'll see..."
+ fi
+ echo exit 0 >usg
+ fi
+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
+else
+ echo "Looks kind of like a Version 7 system, but we'll see..."
+ echo exit 0 >v7
+fi
+case "$eunicefix" in
+*unixtovms*)
+ $cat <<'EOI'
+There is, however, a strange, musty smell in the air that reminds me of
+something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
+EOI
+ echo exit 0 >eunice
+ d_eunice="$define"
+: it so happens the Eunice I know will not run shell scripts in Unix format
+ ;;
+*)
+ echo " "
+ echo "Congratulations. You aren't running Eunice."
+ d_eunice="$undef"
+ ;;
+esac
+if test -f /xenix; then
+ echo "Actually, this looks more like a XENIX system..."
+ echo exit 0 >xenix
+ d_xenix="$define"
+else
+ echo " "
+ echo "It's not Xenix..."
+ 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
+fi
+chmod +x bsd usg v7 osf1 eunice xenix venix
+$eunicefix bsd usg v7 osf1 eunice xenix venix
+$rm -f foo
+
+: see if setuid scripts can be secure
+$cat <<EOM
+
+Some kernels have a bug that prevents setuid #! scripts from being
+secure. Some sites have disabled setuid #! scripts because of this.
+
+First let's decide if your kernel supports secure setuid #! scripts.
+(If setuid #! scripts would be secure but have been disabled anyway,
+don't say that they are secure if asked.)
+
+EOM
+
+val="$undef"
+if $test -d /dev/fd; then
+ echo "#!$ls" >reflect
+ chmod +x,u+s reflect
+ ./reflect >flect 2>&1
+ if $contains "/dev/fd" flect >/dev/null; then
+ echo "Congratulations, your kernel has secure setuid scripts!" >&4
+ val="$define"
+ else
+ $cat <<EOM
+If you are not sure if they are secure, I can check but I'll need a
+username and password different from the one you are using right now.
+If you don't have such a username or don't want me to test, simply
+enter 'none'.
+
+EOM
+ rp='Other username to test security of setuid scripts with?'
+ dflt='none'
+ . ./myread
+ case "$ans" in
+ n|none)
+ case "$d_suidsafe" in
+ '') echo "I'll assume setuid scripts are *not* secure." >&4
+ dflt=n;;
+ "$undef")
+ echo "Well, the $hint value is *not* secure." >&4
+ dflt=n;;
+ *) echo "Well, the $hint value *is* secure." >&4
+ dflt=y;;
+ esac
+ ;;
+ *)
+ $rm -f reflect flect
+ echo "#!$ls" >reflect
+ chmod +x,u+s reflect
+ echo >flect
+ chmod a+w flect
+ echo '"su" will (probably) prompt you for '"$ans's password."
+ su $ans -c './reflect >flect'
+ if $contains "/dev/fd" flect >/dev/null; then
+ echo "Okay, it looks like setuid scripts are secure." >&4
+ dflt=y
+ else
+ echo "I don't think setuid scripts are secure." >&4
+ dflt=n
+ fi
+ ;;
+ esac
+ rp='Does your kernel have *secure* setuid scripts?'
+ . ./myread
+ case "$ans" in
+ [yY]*) val="$define";;
+ *) val="$undef";;
+ esac
+ fi
+else
+ echo "I don't think setuid scripts are secure (no /dev/fd directory)." >&4
+ val="$undef"
+fi
+set d_suidsafe
+eval $setvar
+
+$rm -f reflect flect
+
+: now see if they want to do setuid emulation
+echo " "
+val="$undef"
+case "$d_suidsafe" in
+"$define")
+ val="$undef"
+ echo "No need to emulate SUID scripts since they are secure here." >& 4
+ ;;
+*)
+ $cat <<EOM
+Some systems have disabled setuid scripts, especially systems where
+setuid scripts cannot be secure. On systems where setuid scripts have
+been disabled, the setuid/setgid bits on scripts are currently
+useless. It is possible for $package to detect those bits and emulate
+setuid/setgid in a secure fashion. This emulation will only work if
+setuid scripts have been disabled in your kernel.
+
+EOM
+ case "$d_dosuid" in
+ "$define") dflt=y ;;
+ *) dflt=n ;;
+ esac
+ rp="Do you want to do setuid/setgid emulation?"
+ . ./myread
+ case "$ans" in
+ [yY]*) val="$define";;
+ *) val="$undef";;
+ esac
+ ;;
+esac
+set d_dosuid
+eval $setvar
+
+: determine where site specific libraries go.
+set sitelib sitelib
+eval $prefixit
+case "$sitelib" in
+'') dflt="$privlib/site_perl" ;;
+*) dflt="$sitelib" ;;
+esac
+$cat <<EOM
+
+The installation process will also create a directory for
+site-specific extensions and modules. Some users find it convenient
+to place all local files in this directory rather than in the main
+distribution directory.
+
+EOM
+fn=d~+
+rp='Pathname for the site-specific library files?'
+. ./getfile
+if $test "X$sitelibexp" != "X$ansexp"; then
+ installsitelib=''
+fi
+sitelib="$ans"
+sitelibexp="$ansexp"
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+private files reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installsitelib" in
+ '') dflt=`echo $sitelibexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installsitelib";;
+ esac
+ fn=de~
+ rp='Where will private files be installed?'
+ . ./getfile
+ installsitelib="$ans"
+else
+ installsitelib="$sitelibexp"
+fi
+
+: determine where site specific architecture-dependent libraries go.
+xxx=`echo $sitelib/$archname | sed 's!^$prefix!!'`
+: xxx is usuually lib/site_perl/archname.
+set sitearch sitearch none
+eval $prefixit
+case "$sitearch" in
+'') dflt="$sitelib/$archname" ;;
+*) dflt="$sitearch" ;;
+esac
+$cat <<EOM
+
+The installation process will also create a directory for
+architecture-dependent site-specific extensions and modules.
+
+EOM
+fn=nd~+
+rp='Pathname for the site-specific architecture-dependent library files?'
+. ./getfile
+if $test "X$sitearchexp" != "X$ansexp"; then
+ installsitearch=''
+fi
+sitearch="$ans"
+sitearchexp="$ansexp"
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+private files reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installsitearch" in
+ '') dflt=`echo $sitearchexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installsitearch";;
+ esac
+ fn=de~
+ rp='Where will private files be installed?'
+ . ./getfile
+ installsitearch="$ans"
+else
+ installsitearch="$sitearchexp"
+fi
+
+: determine where old public architecture dependent libraries might be
+case "$oldarchlib" in
+'') case "$privlib" in
+ '') ;;
+ *) dflt="$privlib/$archname"
+ ;;
+ esac
+ ;;
+*) dflt="$oldarchlib"
+ ;;
+esac
+if $test ! -d "$dflt/auto"; then
+ dflt=none
+fi
+cat <<EOM
+
+In 5.001, Perl stored architecture-dependent library files in a library
+with a name such as $privlib/$archname,
+and this directory contained files from the standard extensions and
+files from any additional extensions you might have added. Starting
+with version 5.002, all the architecture-dependent standard extensions
+will go into $archlib,
+while locally-added extensions will go into
+$sitearch.
+
+If you wish Perl to continue to search the old architecture-dependent
+library for your local extensions, give the path to that directory.
+If you do not wish to use your old architecture-dependent library
+files, answer 'none'.
+
+EOM
+fn=dn~
+rp='Directory for your old 5.001 architecture-dependent libraries?'
+. ./getfile
+oldarchlib="$ans"
+oldarchlibexp="$ansexp"
+case "$oldarchlib" in
+''|' ') val="$undef" ;;
+*) val="$define" ;;
+esac
+set d_oldarchlib
+eval $setvar
+
+: determine where public executables go
+echo " "
+set dflt bin bin
+eval $prefixit
+fn=d~
+rp='Pathname where the public executables will reside?'
+. ./getfile
+if $test "X$ansexp" != "X$binexp"; then
+ installbin=''
+fi
+bin="$ans"
+binexp="$ansexp"
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+executables reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installbin" in
+ '') dflt=`echo $binexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installbin";;
+ esac
+ fn=de~
+ rp='Where will public executables be installed?'
+ . ./getfile
+ installbin="$ans"
+else
+ installbin="$binexp"
+fi
+
+: determine where manual pages are on this system
+echo " "
+case "$sysman" in
+'')
+ syspath='/usr/man/man1 /usr/man/mann /usr/man/manl /usr/man/local/man1'
+ syspath="$syspath /usr/man/u_man/man1 /usr/share/man/man1"
+ syspath="$syspath /usr/catman/u_man/man1 /usr/man/l_man/man1"
+ syspath="$syspath /usr/local/man/u_man/man1 /usr/local/man/l_man/man1"
+ syspath="$syspath /usr/man/man.L /local/man/man1 /usr/local/man/man1"
+ sysman=`./loc . /usr/man/man1 $syspath`
+ ;;
+esac
+if $test -d "$sysman"; then
+ echo "System manual is in $sysman." >&4
+else
+ echo "Could not find manual pages in source form." >&4
+fi
+
+: determine where manual pages go
+set man1dir man1dir none
+eval $prefixit
+$cat <<EOM
+
+$spackage has manual pages available in source form.
+EOM
+case "$nroff" in
+nroff)
+ echo "However, you don't have nroff, so they're probably useless to you."
+ case "$man1dir" in
+ '') man1dir="none";;
+ esac;;
+esac
+echo "If you don't want the manual sources installed, answer 'none'."
+case "$man1dir" in
+' ') dflt=none
+ ;;
+'')
+ lookpath="$prefixexp/man/man1 $prefixexp/man/l_man/man1"
+ lookpath="$lookpath $prefixexp/man/p_man/man1"
+ lookpath="$lookpath $prefixexp/man/u_man/man1"
+ lookpath="$lookpath $prefixexp/man/man.1"
+ : If prefix contains 'perl' then we want to keep the man pages
+ : under the prefix directory. Otherwise, look in a variety of
+ : other possible places. This is debatable, but probably a
+ : good compromise. Well, apparently not.
+ : Experience has shown people expect man1dir to be under prefix,
+ : so we now always put it there. Users who want other behavior
+ : can answer interactively or use a command line option.
+ : Does user have System V-style man paths.
+ case "$sysman" in
+ */?_man*) dflt=`./loc . $prefixexp/l_man/man1 $lookpath` ;;
+ *) dflt=`./loc . $prefixexp/man/man1 $lookpath` ;;
+ esac
+ set dflt
+ eval $prefixup
+ ;;
+*) dflt="$man1dir"
+ ;;
+esac
+echo " "
+fn=dn+~
+rp="Where do the main $spackage manual pages (source) go?"
+. ./getfile
+if $test "X$man1direxp" != "X$ansexp"; then
+ installman1dir=''
+fi
+man1dir="$ans"
+man1direxp="$ansexp"
+case "$man1dir" in
+'') man1dir=' '
+ installman1dir='';;
+esac
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+manual pages reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installman1dir" in
+ '') dflt=`echo $man1direxp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installman1dir";;
+ esac
+ fn=de~
+ rp='Where will man pages be installed?'
+ . ./getfile
+ installman1dir="$ans"
+else
+ installman1dir="$man1direxp"
+fi
+
+: What suffix to use on installed man pages
+
+case "$man1dir" in
+' ')
+ man1ext='0'
+ ;;
+*)
+ rp="What suffix should be used for the main $spackage man pages?"
+ case "$man1ext" in
+ '') case "$man1dir" in
+ *1) dflt=1 ;;
+ *1p) dflt=1p ;;
+ *1pm) dflt=1pm ;;
+ *l) dflt=l;;
+ *n) dflt=n;;
+ *o) dflt=o;;
+ *p) dflt=p;;
+ *C) dflt=C;;
+ *L) dflt=L;;
+ *L1) dflt=L1;;
+ *) dflt=1;;
+ esac
+ ;;
+ *) dflt="$man1ext";;
+ esac
+ . ./myread
+ man1ext="$ans"
+ ;;
+esac
+
+: see if we can have long filenames
+echo " "
+rmlist="$rmlist /tmp/cf$$"
+$test -d /tmp/cf$$ || mkdir /tmp/cf$$
+first=123456789abcdef
+second=/tmp/cf$$/$first
+$rm -f $first $second
+if (echo hi >$first) 2>/dev/null; then
+ if $test -f 123456789abcde; then
+ echo 'You cannot have filenames longer than 14 characters. Sigh.' >&4
+ val="$undef"
+ else
+ if (echo hi >$second) 2>/dev/null; then
+ if $test -f /tmp/cf$$/123456789abcde; then
+ $cat <<'EOM'
+That's peculiar... You can have filenames longer than 14 characters, but only
+on some of the filesystems. Maybe you are using NFS. Anyway, to avoid problems
+I shall consider your system cannot support long filenames at all.
+EOM
+ val="$undef"
+ else
+ echo 'You can have filenames longer than 14 characters.' >&4
+ val="$define"
+ fi
+ else
+ $cat <<'EOM'
+How confusing! Some of your filesystems are sane enough to allow filenames
+longer than 14 characters but some others like /tmp can't even think about them.
+So, for now on, I shall assume your kernel does not allow them at all.
+EOM
+ val="$undef"
+ fi
+ fi
+else
+ $cat <<'EOM'
+You can't have filenames longer than 14 chars. You can't even think about them!
+EOM
+ val="$undef"
+fi
+set d_flexfnam
+eval $setvar
+$rm -rf /tmp/cf$$ 123456789abcde*
+
+: determine where library module manual pages go
+set man3dir man3dir none
+eval $prefixit
+$cat <<EOM
+
+$spackage has manual pages for many of the library modules.
+EOM
+
+case "$nroff" in
+nroff)
+ $cat <<'EOM'
+However, you don't have nroff, so they're probably useless to you.
+You can use the supplied perldoc script instead.
+EOM
+ case "$man3dir" in
+ '') man3dir="none";;
+ esac;;
+esac
+
+case "$d_flexfnam" in
+undef)
+ $cat <<'EOM'
+However, your system can't handle the long file names like File::Basename.3.
+You can use the supplied perldoc script instead.
+EOM
+ case "$man3dir" in
+ '') man3dir="none";;
+ esac;;
+esac
+
+echo "If you don't want the manual sources installed, answer 'none'."
+: We dont use /usr/local/man/man3 because some man programs will
+: only show the /usr/local/man/man3 contents, and not the system ones,
+: thus man less will show the perl module less.pm, but not the system
+: less command. We might also conflict with TCL man pages.
+: However, something like /opt/perl/man/man3 is fine.
+case "$man3dir" in
+'') case "$prefix" in
+ *perl*) dflt=`echo $man1dir |
+ $sed -e 's/man1/man3/g' -e 's/man\.1/man\.3/g'` ;;
+ *) dflt="$privlib/man/man3" ;;
+ esac
+ ;;
+' ') dflt=none;;
+*) dflt="$man3dir" ;;
+esac
+echo " "
+
+fn=dn+~
+rp="Where do the $spackage library man pages (source) go?"
+. ./getfile
+if test "X$man3direxp" != "X$ansexp"; then
+ installman3dir=''
+fi
+
+man3dir="$ans"
+man3direxp="$ansexp"
+case "$man3dir" in
+'') man3dir=' '
+ installman3dir='';;
+esac
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+manual pages reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installman3dir" in
+ '') dflt=`echo $man3direxp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installman3dir";;
+ esac
+ fn=de~
+ rp='Where will man pages be installed?'
+ . ./getfile
+ installman3dir="$ans"
+else
+ installman3dir="$man3direxp"
+fi
+
+: What suffix to use on installed man pages
+
+case "$man3dir" in
+' ')
+ man3ext='0'
+ ;;
+*)
+ rp="What suffix should be used for the $spackage library man pages?"
+ case "$man3ext" in
+ '') case "$man3dir" in
+ *3) dflt=3 ;;
+ *3p) dflt=3p ;;
+ *3pm) dflt=3pm ;;
+ *l) dflt=l;;
+ *n) dflt=n;;
+ *o) dflt=o;;
+ *p) dflt=p;;
+ *C) dflt=C;;
+ *L) dflt=L;;
+ *L3) dflt=L3;;
+ *) dflt=3;;
+ esac
+ ;;
+ *) dflt="$man3ext";;
+ esac
+ . ./myread
+ man3ext="$ans"
+ ;;
+esac
+
+: see what memory models we can support
+case "$models" in
+'')
+ $cat >pdp11.c <<'EOP'
+main() {
+#ifdef pdp11
+ exit(0);
+#else
+ exit(1);
+#endif
+}
+EOP
+ cc -o pdp11 pdp11.c >/dev/null 2>&1
+ if ./pdp11 2>/dev/null; then
+ dflt='unsplit split'
+ else
+ tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
+ case "$tans" 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 memory models are supported?"
+. ./myread
+models="$ans"
+
+case "$models" in
+none)
+ small=''
+ medium=''
+ large=''
+ huge=''
+ unsplit=''
+ split=''
+ ;;
+*split)
+ case "$split" in
+ '') if $contains '\-i' $sysman/ld.1 >/dev/null 2>&1 || \
+ $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then
+ dflt='-i'
+ else
+ dflt='none'
+ fi;;
+ *) dflt="$split";;
+ esac
+ rp="What flag indicates separate I and D space?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';;
+ esac
+ split="$tans"
+ unsplit='';;
+*large*|*small*|*medium*|*huge*)
+ case "$models" in
+ *large*)
+ case "$large" in
+ '') dflt='-Ml';;
+ *) dflt="$large";;
+ esac
+ rp="What flag indicates large model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ large="$tans";;
+ *) large='';;
+ esac
+ case "$models" in
+ *huge*) case "$huge" in
+ '') dflt='-Mh';;
+ *) dflt="$huge";;
+ esac
+ rp="What flag indicates huge model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ huge="$tans";;
+ *) huge="$large";;
+ esac
+ case "$models" in
+ *medium*) case "$medium" in
+ '') dflt='-Mm';;
+ *) dflt="$medium";;
+ esac
+ rp="What flag indicates medium model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ medium="$tans";;
+ *) medium="$large";;
+ esac
+ case "$models" in
+ *small*) case "$small" in
+ '') dflt='none';;
+ *) dflt="$small";;
+ esac
+ rp="What flag indicates small model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ small="$tans";;
+ *) small='';;
+ esac
+ ;;
+*)
+ echo "Unrecognized memory models--you may have to edit Makefile.SH" >&4
+ ;;
+esac
+
+: see if we need a special compiler
+echo " "
+if ./usg; then
+ case "$cc" in
+ '') case "$Mcc" in
+ /*) dflt='Mcc';;
+ *) case "$large" in
+ -M*) dflt='cc';;
+ *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then
+ if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then
+ dflt='cc'
+ else
+ dflt='cc -M'
+ fi
+ else
+ dflt='cc'
+ fi;;
+ esac;;
+ esac;;
+ *) dflt="$cc";;
+ esac
+ $cat <<'EOM'
+On some systems the default C compiler will not resolve multiple global
+references that happen to have the same name. On some such systems the "Mcc"
+command may be used to force these to be resolved. On other systems a "cc -M"
+command is required. (Note that the -M flag on other systems indicates a
+memory model to use!) If you have the Gnu C compiler, you might wish to use
+that instead.
+
+EOM
+ rp="What command will force resolution on this system?"
+ . ./myread
+ cc="$ans"
+else
+ case "$cc" in
+ '') dflt=cc;;
+ *) dflt="$cc";;
+ esac
+ rp="Use which C compiler?"
+ . ./myread
+ cc="$ans"
+fi
+echo " "
+echo "Checking for GNU cc in disguise and/or its version number..." >&4
+$cat >gccvers.c <<EOM
+#include <stdio.h>
+int main() {
+#ifdef __GNUC__
+#ifdef __VERSION__
+ printf("%s\n", __VERSION__);
+#else
+ printf("%s\n", "1");
+#endif
+#endif
+ exit(0);
+}
+EOM
+if $cc -o gccvers gccvers.c >/dev/null 2>&1; then
+ gccversion=`./gccvers`
+ case "$gccversion" in
+ '') echo "You are not using GNU cc." ;;
+ *) echo "You are using GNU cc $gccversion." ;;
+ esac
+else
+ echo " "
+ echo "*** WHOA THERE!!! ***" >&4
+ echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4
+ case "$knowitall" in
+ '')
+ echo " You'd better start hunting for one and let me know about it." >&4
+ exit 1
+ ;;
+ esac
+fi
+$rm -f gccvers*
+case "$gccversion" in
+1*) cpp=`./loc gcc-cpp $cpp $pth` ;;
+esac
+
+: What should the include directory be ?
+echo " "
+$echo $n "Hmm... $c"
+dflt='/usr/include'
+incpath=''
+mips_type=''
+if $test -f /bin/mips && /bin/mips; then
+ echo "Looks like a MIPS system..."
+ $cat >usr.c <<'EOCP'
+#ifdef SYSTYPE_BSD43
+/bsd43
+#endif
+EOCP
+ if $cc -E usr.c > usr.out && $contains / usr.out >/dev/null 2>&1; then
+ dflt='/bsd43/usr/include'
+ incpath='/bsd43'
+ mips_type='BSD 4.3'
+ else
+ mips_type='System V'
+ fi
+ $rm -f usr.c usr.out
+ echo "and you're compiling with the $mips_type compiler and libraries."
+ xxx_prompt=y
+ echo "exit 0" >mips
+else
+ echo "Doesn't look like a MIPS system."
+ xxx_prompt=n
+ echo "exit 1" >mips
+fi
+chmod +x mips
+$eunicefix mips
+echo " "
+case "$usrinc" in
+'') ;;
+*) dflt="$usrinc";;
+esac
+case "$xxx_prompt" in
+y) fn=d/
+ rp='Where are the include files you want to use?'
+ . ./getfile
+ usrinc="$ans"
+ ;;
+*) usrinc="$dflt"
+ ;;
+esac
+
+: see if we have to deal with yellow pages, now NIS.
+if $test -d /usr/etc/yp || $test -d /etc/yp; then
+ if $test -f /usr/etc/nibindd; then
+ echo " "
+ echo "I'm fairly confident you're on a NeXT."
+ echo " "
+ rp='Do you get the hosts file via NetInfo?'
+ dflt=y
+ case "$hostcat" in
+ nidump*) ;;
+ '') ;;
+ *) dflt=n;;
+ esac
+ . ./myread
+ case "$ans" in
+ y*) hostcat='nidump hosts .';;
+ *) case "$hostcat" in
+ nidump*) hostcat='';;
+ esac
+ ;;
+ esac
+ fi
+ case "$hostcat" in
+ nidump*) ;;
+ *)
+ case "$hostcat" in
+ *ypcat*) dflt=y;;
+ '') if $contains '^\+' /etc/passwd >/dev/null 2>&1; then
+ dflt=y
+ else
+ dflt=n
+ fi;;
+ *) dflt=n;;
+ esac
+ echo " "
+ rp='Are you getting the hosts file via yellow pages?'
+ . ./myread
+ case "$ans" in
+ y*) hostcat='ypcat hosts';;
+ *) hostcat='cat /etc/hosts';;
+ esac
+ ;;
+ esac
+fi
+
+: now get the host name
+echo " "
+echo "Figuring out host name..." >&4
+case "$myhostname" in
+'') cont=true
+ echo 'Maybe "hostname" will work...'
+ if tans=`sh -c hostname 2>&1` ; then
+ myhostname=$tans
+ phostname=hostname
+ cont=''
+ fi
+ ;;
+*) cont='';;
+esac
+if $test "$cont"; then
+ if ./xenix; then
+ echo 'Oh, dear. Maybe "/etc/systemid" is the key...'
+ if tans=`cat /etc/systemid 2>&1` ; then
+ myhostname=$tans
+ phostname='cat /etc/systemid'
+ echo "Whadyaknow. Xenix always was a bit strange..."
+ cont=''
+ fi
+ elif $test -r /etc/systemid; then
+ echo "(What is a non-Xenix system doing with /etc/systemid?)"
+ fi
+fi
+if $test "$cont"; then
+ echo 'No, maybe "uuname -l" will work...'
+ if tans=`sh -c 'uuname -l' 2>&1` ; then
+ myhostname=$tans
+ phostname='uuname -l'
+ else
+ echo 'Strange. Maybe "uname -n" will work...'
+ if tans=`sh -c 'uname -n' 2>&1` ; then
+ myhostname=$tans
+ phostname='uname -n'
+ else
+ echo 'Oh well, maybe I can mine it out of whoami.h...'
+ if tans=`sh -c $contains' sysname $usrinc/whoami.h' 2>&1` ; then
+ myhostname=`echo "$tans" | $sed 's/^.*"\(.*\)"/\1/'`
+ phostname="sed -n -e '"'/sysname/s/^.*\"\\(.*\\)\"/\1/{'"' -e p -e q -e '}' <$usrinc/whoami.h"
+ else
+ case "$myhostname" in
+ '') echo "Does this machine have an identity crisis or something?"
+ phostname='';;
+ *)
+ echo "Well, you said $myhostname before..."
+ phostname='echo $myhostname';;
+ esac
+ fi
+ fi
+ fi
+fi
+: you do not want to know about this
+set $myhostname
+myhostname=$1
+
+: verify guess
+if $test "$myhostname" ; then
+ dflt=y
+ rp='Your host name appears to be "'$myhostname'".'" Right?"
+ . ./myread
+ case "$ans" in
+ y*) ;;
+ *) myhostname='';;
+ esac
+fi
+
+: bad guess or no guess
+while $test "X$myhostname" = X ; do
+ dflt=''
+ rp="Please type the (one word) name of your host:"
+ . ./myread
+ myhostname="$ans"
+done
+
+: translate upper to lower if necessary
+case "$myhostname" in
+*[A-Z]*)
+ echo "(Normalizing case in your host name)"
+ myhostname=`echo $myhostname | ./tr '[A-Z]' '[a-z]'`
+ ;;
+esac
+
+case "$myhostname" in
+*.*)
+ dflt=`expr "X$myhostname" : "X[^.]*\(\..*\)"`
+ myhostname=`expr "X$myhostname" : "X\([^.]*\)\."`
+ echo "(Trimming domain name from host name--host name is now $myhostname)"
+ ;;
+*) case "$mydomain" in
+ '')
+ {
+ : If we use NIS, try ypmatch.
+ : Is there some reason why this was not done before?
+ test "X$hostcat" = "Xypcat hosts" &&
+ ypmatch "$myhostname" hosts 2>/dev/null |\
+ $sed -e 's/[ ]*#.*//; s/$/ /' > hosts && \
+ $test -s hosts
+ } || {
+ : Extract only the relevant hosts, reducing file size,
+ : remove comments, insert trailing space for later use.
+ $hostcat | $sed -n -e "s/[ ]*#.*//; s/\$/ /
+ /[ ]$myhostname[ . ]/p" > hosts
+ }
+ tmp_re="[ . ]"
+ $test x`$awk "/[0-9].*[ ]$myhostname$tmp_re/ { sum++ }
+ END { print sum }" hosts` = x1 || tmp_re="[ ]"
+ dflt=.`$awk "/[0-9].*[ ]$myhostname$tmp_re/ {for(i=2; i<=NF;i++) print \\\$i}" \
+ hosts | $sort | $uniq | \
+ $sed -n -e "s/$myhostname\.\([-a-zA-Z0-9_.]\)/\1/p"`
+ case `$echo X$dflt` in
+ X*\ *) echo "(Several hosts in /etc/hosts matched hostname)"
+ dflt=.
+ ;;
+ .) echo "(You do not have fully-qualified names in /etc/hosts)"
+ ;;
+ esac
+ case "$dflt" in
+ .)
+ tans=`./loc resolv.conf X /etc /usr/etc`
+ if $test -f "$tans"; then
+ echo "(Attempting domain name extraction from $tans)"
+ : Why was there an Egrep here, when Sed works?
+ dflt=.`$sed -n -e 's/^domain[ ]*\(.*\)/\1/p' $tans \
+ | ./tr '[A-Z]' '[a-z]' 2>/dev/null`
+ fi
+ ;;
+ esac
+ case "$dflt" in
+ .) echo "(No help from resolv.conf either -- attempting clever guess)"
+ dflt=.`sh -c domainname 2>/dev/null`
+ case "$dflt" in
+ '') dflt='.';;
+ .nis.*|.yp.*|.main.*) dflt=`echo $dflt | $sed -e 's/^\.[^.]*//'`;;
+ esac
+ ;;
+ esac
+ case "$dflt" in
+ .) echo "(Lost all hope -- silly guess then)"
+ dflt='.uucp'
+ ;;
+ esac
+ $rm -f hosts
+ ;;
+ *) dflt="$mydomain";;
+ esac;;
+esac
+echo " "
+rp="What is your domain name?"
+. ./myread
+tans="$ans"
+case "$ans" in
+'') ;;
+.*) ;;
+*) tans=".$tans";;
+esac
+mydomain="$tans"
+
+: translate upper to lower if necessary
+case "$mydomain" in
+*[A-Z]*)
+ echo "(Normalizing case in your domain name)"
+ mydomain=`echo $mydomain | ./tr '[A-Z]' '[a-z]'`
+ ;;
+esac
+
+: a little sanity check here
+case "$phostname" in
+'') ;;
+*)
+ case `$phostname | ./tr '[A-Z]' '[a-z]'` in
+ $myhostname$mydomain|$myhostname) ;;
+ *)
+ case "$phostname" in
+ sed*)
+ echo "(That doesn't agree with your whoami.h file, by the way.)"
+ ;;
+ *)
+ echo "(That doesn't agree with your $phostname command, by the way.)"
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+esac
+
+$cat <<EOM
+
+I need to get your e-mail address in Internet format if possible, i.e.
+something like user@host.domain. Please answer accurately since I have
+no easy means to double check it. The default value provided below
+is most probably close to the reality but may not be valid from outside
+your organization...
+
+EOM
+cont=x
+while test "$cont"; do
+ case "$cf_email" in
+ '') dflt="$cf_by@$myhostname$mydomain";;
+ *) dflt="$cf_email";;
+ esac
+ rp='What is your e-mail address?'
+ . ./myread
+ cf_email="$ans"
+ case "$cf_email" in
+ *@*.*) cont='' ;;
+ *)
+ rp='Address does not look like an Internet one. Use it anyway?'
+ case "$fastread" in
+ yes) dflt=y ;;
+ *) dflt=n ;;
+ esac
+ . ./myread
+ case "$ans" in
+ y*) cont='' ;;
+ *) echo " " ;;
+ esac
+ ;;
+ esac
+done
+
+$cat <<EOM
+
+If you or somebody else will be maintaining perl at your site, please
+fill in the correct e-mail address here so that they may be contacted
+if necessary. Currently, the "perlbug" program included with perl
+will send mail to this address in addition to perlbug@perl.com. You may
+enter "none" for no administrator.
+
+EOM
+case "$perladmin" in
+'') dflt="$cf_email";;
+*) dflt="$perladmin";;
+esac
+rp='Perl administrator e-mail address'
+. ./myread
+perladmin="$ans"
+
+: determine where public executable scripts go
+set scriptdir scriptdir
+eval $prefixit
+case "$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
+ $test -d /usr/local/script && dflt=/usr/local/script
+ $test -d $prefixexp/script && dflt=$prefixexp/script
+ set dflt
+ eval $prefixup
+ ;;
+*) dflt="$scriptdir"
+ ;;
+esac
+$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
+fn=d~
+rp='Where do you keep publicly executable scripts?'
+. ./getfile
+if $test "X$ansexp" != "X$scriptdirexp"; then
+ installscript=''
+fi
+scriptdir="$ans"
+scriptdirexp="$ansexp"
+if $afs; then
+ $cat <<EOM
+
+Since you are running AFS, I need to distinguish the directory in which
+scripts reside from the directory in which they are installed (and from
+which they are presumably copied to the former directory by occult means).
+
+EOM
+ case "$installscript" in
+ '') dflt=`echo $scriptdirexp | sed 's#^/afs/#/afs/.#'`;;
+ *) dflt="$installscript";;
+ esac
+ fn=de~
+ rp='Where will public scripts be installed?'
+ . ./getfile
+ installscript="$ans"
+else
+ installscript="$scriptdirexp"
+fi
+
+: determine perl absolute location
+case "$perlpath" in
+'') perlpath=$binexp/perl ;;
+esac
+
+: figure out how to guarantee perl startup
+case "$startperl" in
+'')
+ case "$sharpbang" in
+ *!)
+ $cat <<EOH
+
+I can use the #! construct to start perl on your system. This will
+make startup of perl scripts faster, but may cause problems if you
+want to share those scripts and perl is not in a standard place
+($perlpath) on all your platforms. The alternative is to force
+a shell by starting the script with a single ':' character.
+
+EOH
+ dflt=$perlpath
+ rp='What shall I put after the #! to start up perl ("none" to not use #!)?'
+ . ./myread
+ case "$ans" in
+ none) startperl=": # use perl";;
+ *) startperl="#!$ans";;
+ esac
+ ;;
+ *) startperl=": # use perl"
+ ;;
+ esac
+ ;;
+esac
+echo "I'll use $startperl to start perl scripts."
+
+: see how we invoke the C preprocessor
+echo " "
+echo "Now, how can we feed standard input to your C preprocessor..." >&4
+cat <<'EOT' >testcpp.c
+#define ABC abc
+#define XYZ xyz
+ABC.XYZ
+EOT
+cd ..
+echo 'cat >.$$.c; '"$cc"' -E ${1+"$@"} .$$.c; rm .$$.c' >cppstdin
+chmod 755 cppstdin
+wrapper=`pwd`/cppstdin
+ok='false'
+cd UU
+
+if $test "X$cppstdin" != "X" && \
+ $cppstdin $cppminus <testcpp.c >testcpp.out 2>&1 && \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1
+then
+ echo "You used to use $cppstdin $cppminus so we'll use that again."
+ case "$cpprun" in
+ '') echo "But let's see if we can live without a wrapper..." ;;
+ *)
+ if $cpprun $cpplast <testcpp.c >testcpp.out 2>&1 && \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1
+ then
+ echo "(And we'll use $cpprun $cpplast to preprocess directly.)"
+ ok='true'
+ else
+ echo "(However, $cpprun $cpplast does not work, let's see...)"
+ fi
+ ;;
+ esac
+else
+ case "$cppstdin" in
+ '') ;;
+ *)
+ echo "Good old $cppstdin $cppminus does not seem to be of any help..."
+ ;;
+ esac
+fi
+
+if $ok; then
+ : nothing
+elif echo 'Maybe "'"$cc"' -E" will work...'; \
+ $cc -E <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "Yup, it does."
+ x_cpp="$cc -E"
+ x_minus='';
+elif echo 'Nope...maybe "'"$cc"' -E -" will work...'; \
+ $cc -E - <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "Yup, it does."
+ x_cpp="$cc -E"
+ x_minus='-';
+elif echo 'Nope...maybe "'"$cc"' -P" will work...'; \
+ $cc -P <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "Yipee, that works!"
+ x_cpp="$cc -P"
+ x_minus='';
+elif echo 'Nope...maybe "'"$cc"' -P -" will work...'; \
+ $cc -P - <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "At long last!"
+ x_cpp="$cc -P"
+ x_minus='-';
+elif echo 'No such luck, maybe "'$cpp'" will work...'; \
+ $cpp <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "It works!"
+ x_cpp="$cpp"
+ x_minus='';
+elif echo 'Nixed again...maybe "'$cpp' -" will work...'; \
+ $cpp - <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "Hooray, it works! I was beginning to wonder."
+ x_cpp="$cpp"
+ x_minus='-';
+elif echo 'Uh-uh. Time to get fancy. Trying a wrapper...'; \
+ $wrapper <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ x_cpp="$wrapper"
+ x_minus=''
+ echo "Eureka!"
+else
+ dflt=''
+ rp="No dice. I can't find a C preprocessor. Name one:"
+ . ./myread
+ x_cpp="$ans"
+ x_minus=''
+ $x_cpp <testcpp.c >testcpp.out 2>&1
+ if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
+ echo "OK, that will do." >&4
+ else
+echo "Sorry, I can't get that to work. Go find one and rerun Configure." >&4
+ exit 1
+ fi
+fi
+
+case "$ok" in
+false)
+ cppstdin="$x_cpp"
+ cppminus="$x_minus"
+ cpprun="$x_cpp"
+ cpplast="$x_minus"
+ set X $x_cpp
+ shift
+ case "$1" in
+ "$cpp")
+ echo "Perhaps can we force $cc -E using a wrapper..."
+ if $wrapper <testcpp.c >testcpp.out 2>&1; \
+ $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1
+ then
+ echo "Yup, we can."
+ cppstdin="$wrapper"
+ cppminus='';
+ else
+ echo "Nope, we'll have to live without it..."
+ fi
+ ;;
+ esac
+ case "$cpprun" in
+ "$wrapper")
+ cpprun=''
+ cpplast=''
+ ;;
+ esac
+ ;;
+esac
+
+case "$cppstdin" in
+"$wrapper") ;;
+*) $rm -f $wrapper;;
+esac
+$rm -f testcpp.c testcpp.out
+
+: Set private lib path
+case "$plibpth" in
+'') if ./mips; then
+ plibpth="$incpath/usr/lib /usr/local/lib /usr/ccs/lib"
+ fi;;
+esac
+case "$libpth" in
+' ') dlist='';;
+'') dlist="$loclibpth $plibpth $glibpth";;
+*) dlist="$libpth";;
+esac
+
+: Now check and see which directories actually exist, avoiding duplicates
+libpth=''
+for xxx in $dlist
+do
+ if $test -d $xxx; then
+ case " $libpth " in
+ *" $xxx "*) ;;
+ *) libpth="$libpth $xxx";;
+ esac
+ fi
+done
+$cat <<'EOM'
+
+Some systems have incompatible or broken versions of libraries. Among
+the directories listed in the question below, please remove any you
+know not to be holding relevant libraries, and add any that are needed.
+Say "none" for none.
+
+EOM
+case "$libpth" in
+'') dflt='none';;
+*)
+ set X $libpth
+ shift
+ dflt=${1+"$@"}
+ ;;
+esac
+rp="Directories to use for library searches?"
+. ./myread
+case "$ans" in
+none) libpth=' ';;
+*) libpth="$ans";;
+esac
+
+: determine optimize, if desired, or use for debug flag also
+case "$optimize" in
+' ') dflt='none';;
+'') dflt='-O';;
+*) dflt="$optimize";;
+esac
+$cat <<EOH
+
+Some C compilers have problems with their optimizers, by default, $package
+compiles with the -O flag to use the optimizer. Alternately, you might want
+to use the symbolic debugger, which uses the -g flag (on traditional Unix
+systems). Either flag can be specified here. To use neither flag, specify
+the word "none".
+
+EOH
+rp="What optimizer/debugger flag should be used?"
+. ./myread
+optimize="$ans"
+case "$optimize" in
+'none') optimize=" ";;
+esac
+
+dflt=''
+: We will not override a previous value, but we might want to
+: augment a hint file
+case "$hint" in
+none|recommended)
+ case "$gccversion" in
+ 1*) dflt='-fpcc-struct-return' ;;
+ esac
+ case "$optimize" in
+ *-g*) dflt="$dflt -DDEBUGGING";;
+ esac
+ case "$gccversion" in
+ 2*) if test -d /etc/conf/kconfig.d &&
+ $contains _POSIX_VERSION $usrinc/sys/unistd.h >/dev/null 2>&1
+ then
+ dflt="$dflt -posix"
+ fi
+ ;;
+ esac
+ ;;
+esac
+
+case "$mips_type" in
+*BSD*|'') inclwanted="$locincpth $usrinc";;
+*) inclwanted="$locincpth $inclwanted $usrinc/bsd";;
+esac
+for thisincl in $inclwanted; do
+ if $test -d $thisincl; then
+ if $test x$thisincl != x$usrinc; then
+ case "$dflt" in
+ *$thisincl*);;
+ *) dflt="$dflt -I$thisincl";;
+ esac
+ fi
+ fi
+done
+
+inctest='if $contains $2 $usrinc/$1 >/dev/null 2>&1; then
+ xxx=true;
+elif $contains $2 $usrinc/sys/$1 >/dev/null 2>&1; then
+ xxx=true;
+else
+ xxx=false;
+fi;
+if $xxx; then
+ case "$dflt" in
+ *$2*);;
+ *) dflt="$dflt -D$2";;
+ esac;
+fi'
+
+if ./osf1; then
+ set signal.h __LANGUAGE_C__; eval $inctest
+else
+ set signal.h LANGUAGE_C; eval $inctest
+fi
+set signal.h NO_PROTOTYPE; eval $inctest
+set signal.h _NO_PROTO; eval $inctest
+
+case "$hint" in
+none|recommended) dflt="$ccflags $dflt" ;;
+*) dflt="$ccflags";;
+esac
+
+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. If you
+want $package to honor its debug switch, you should include -DDEBUGGING here.
+Your C compiler might also need additional flags, such as -D_POSIX_SOURCE,
+-DHIDEMYMALLOC or -DCRIPPLED_CC.
+
+To use no flags, specify the word "none".
+
+EOH
+set X $dflt
+shift
+dflt=${1+"$@"}
+rp="Any additional cc flags?"
+. ./myread
+case "$ans" in
+none) ccflags='';;
+*) ccflags="$ans";;
+esac
+
+: the following weeds options from ccflags that are of no interest to cpp
+cppflags="$ccflags"
+case "$gccversion" in
+1*) cppflags="$cppflags -D__GNUC__"
+esac
+case "$mips_type" in
+'');;
+*BSD*) cppflags="$cppflags -DSYSTYPE_BSD43";;
+esac
+case "$cppflags" in
+'');;
+*)
+ echo " "
+ echo "Let me guess what the preprocessor flags are..." >&4
+ set X $cppflags
+ shift
+ cppflags=''
+ $cat >cpp.c <<'EOM'
+#define BLURFL foo
+
+BLURFL xx LFRULB
+EOM
+ previous=''
+ for flag in $*
+ do
+ case "$flag" in
+ -*) ftry="$flag";;
+ *) ftry="$previous $flag";;
+ esac
+ if $cppstdin -DLFRULB=bar $ftry $cppminus <cpp.c \
+ >cpp1.out 2>/dev/null && \
+ $cpprun -DLFRULB=bar $ftry $cpplast <cpp.c \
+ >cpp2.out 2>/dev/null && \
+ $contains 'foo.*xx.*bar' cpp1.out >/dev/null 2>&1 && \
+ $contains 'foo.*xx.*bar' cpp2.out >/dev/null 2>&1
+ then
+ cppflags="$cppflags $ftry"
+ previous=''
+ else
+ previous="$flag"
+ fi
+ done
+ set X $cppflags
+ shift
+ cppflags=${1+"$@"}
+ case "$cppflags" in
+ *-*) echo "They appear to be: $cppflags";;
+ esac
+ $rm -f cpp.c cpp?.out
+ ;;
+esac
+
+: flags used in final linking phase
+
+case "$ldflags" in
+'') if ./venix; then
+ dflt='-i -z'
+ else
+ dflt=''
+ fi
+ case "$ccflags" in
+ *-posix*) dflt="$dflt -posix" ;;
+ esac
+ ;;
+*) dflt="$ldflags";;
+esac
+
+: Try to guess additional flags to pick up local libraries.
+for thislibdir in $libpth; do
+ case " $loclibpth " in
+ *" $thislibdir "*)
+ case "$dflt " in
+ *"-L$thislibdir "*) ;;
+ *) dflt="$dflt -L$thislibdir" ;;
+ esac
+ ;;
+ esac
+done
+
+case "$dflt" in
+'') dflt='none' ;;
+esac
+
+$cat <<EOH
+
+Your C linker may need flags. For this question you should
+include -L/whatever and any other flags used by the C linker, but you
+should NOT include libraries like -lwhatever.
+
+Make sure you include the appropriate -L/path flags if your C linker
+does not normally search all of the directories you specified above,
+namely
+ $libpth
+To use no flags, specify the word "none".
+
+EOH
+
+rp="Any additional ld flags (NOT including libraries)?"
+. ./myread
+case "$ans" in
+none) ldflags='';;
+*) ldflags="$ans";;
+esac
+rmlist="$rmlist pdp11"
+
+: coherency check
+echo " "
+echo "Checking your choice of C compiler and flags for coherency..." >&4
+set X $cc $optimize $ccflags $ldflags try.c -o try
+shift
+$cat >try.msg <<EOM
+I've tried to compile and run a simple program with:
+
+ $*
+ ./try
+
+and I got the following output:
+
+EOM
+$cat > try.c <<'EOF'
+#include <stdio.h>
+main() { exit(0); }
+EOF
+dflt=y
+if sh -c "$cc $optimize $ccflags try.c -o try $ldflags" >>try.msg 2>&1; then
+ if sh -c './try' >>try.msg 2>&1; then
+ dflt=n
+ else
+ echo "The program compiled OK, but exited with status $?." >>try.msg
+ rp="You have a problem. Shall I abort Configure"
+ dflt=y
+ fi
+else
+ echo "I can't compile the test program." >>try.msg
+ rp="You have a BIG problem. Shall I abort Configure"
+ dflt=y
+fi
+case "$dflt" in
+y)
+ $cat try.msg
+ case "$knowitall" in
+ '')
+ echo "(The supplied flags might be incorrect with this C compiler.)"
+ ;;
+ *) dflt=n;;
+ esac
+ echo " "
+ . ./myread
+ case "$ans" in
+ n*|N*) ;;
+ *) echo "Ok. Stopping Configure." >&4
+ exit 1
+ ;;
+ esac
+ ;;
+n) echo "OK, that should do.";;
+esac
+$rm -f try try.* core
+
+: compute shared library extension
+case "$so" in
+'')
+ if xxx=`./loc libc.sl X $libpth`; $test -f "$xxx"; then
+ dflt='sl'
+ else
+ dflt='so'
+ fi
+ ;;
+*) dflt="$so";;
+esac
+$cat <<EOM
+
+On some systems, shared libraries may be available. Answer 'none' if
+you want to suppress searching of shared libraries for the remaining
+of this configuration.
+
+EOM
+rp='What is the file extension used for shared libraries?'
+. ./myread
+so="$ans"
+
+: Looking for optional libraries
+echo " "
+echo "Checking for optional libraries..." >&4
+case "$libs" in
+' '|'') dflt='';;
+*) dflt="$libs";;
+esac
+case "$libswanted" in
+'') libswanted='c_s';;
+esac
+for thislib in $libswanted; do
+
+ if xxx=`./loc lib$thislib.$so.[0-9]'*' X $libpth`; $test -f "$xxx"; then
+ echo "Found -l$thislib (shared)."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l$thislib";;
+ esac
+ elif xxx=`./loc lib$thislib.$so X $libpth` ; $test -f "$xxx"; then
+ echo "Found -l$thislib (shared)."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l$thislib";;
+ esac
+ elif xxx=`./loc lib$thislib.a X $libpth`; $test -f "$xxx"; then
+ echo "Found -l$thislib."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l$thislib";;
+ esac
+ elif xxx=`./loc $thislib.a X $libpth`; $test -f "$xxx"; then
+ echo "Found -l$thislib."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l$thislib";;
+ esac
+ elif xxx=`./loc lib${thislib}_s.a X $libpth`; $test -f "$xxx"; then
+ echo "Found -l${thislib}_s."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l${thislib}_s";;
+ esac
+ elif xxx=`./loc Slib$thislib.a X $xlibpth`; $test -f "$xxx"; then
+ echo "Found -l$thislib."
+ case " $dflt " in
+ *"-l$thislib "*);;
+ *) dflt="$dflt -l$thislib";;
+ esac
+ else
+ echo "No -l$thislib."
+ fi
+done
+set X $dflt
+shift
+dflt="$*"
+case "$libs" in
+'') dflt="$dflt";;
+*) dflt="$libs";;
+esac
+case "$dflt" in
+' '|'') dflt='none';;
+esac
+
+$cat <<EOM
+
+Some versions of Unix support shared libraries, which make executables smaller
+but make load time slightly longer.
+
+On some systems, mostly newer Unix System V's, the shared library is included
+by putting the option "-lc_s" as the last thing on the cc command line when
+linking. Other systems use shared libraries by default. There may be other
+libraries needed to compile $package on your machine as well. If your system
+needs the "-lc_s" option, include it here. Include any other special libraries
+here as well. Say "none" for none.
+EOM
+
+echo " "
+rp="Any additional libraries?"
+. ./myread
+case "$ans" in
+none) libs=' ';;
+*) libs="$ans";;
+esac
+
+: see if nm is to be used to determine whether a symbol is defined or not
+case "$usenm" in
+'')
+ dflt=`egrep 'inlibc|csym' ../Configure | wc -l 2>/dev/null`
+ if $test $dflt -gt 20; then
+ dflt=y
+ else
+ dflt=n
+ fi
+ ;;
+*)
+ case "$usenm" in
+ true) dflt=y;;
+ *) dflt=n;;
+ esac
+ ;;
+esac
+$cat <<EOM
+
+I can use 'nm' to extract the symbols from your C libraries. This is a time
+consuming task which may generate huge output on the disk (up to 3 megabytes)
+but that should make the symbols extraction faster. The alternative is to skip
+the 'nm' extraction part and to compile a small test program instead to
+determine whether each symbol is present. If you have a fast C compiler and/or
+if your 'nm' output cannot be parsed, this may be the best solution.
+
+EOM
+rp='Shall I use nm to extract C symbols from the libraries?'
+. ./myread
+case "$ans" in
+n|N) usenm=false;;
+*) usenm=true;;
+esac
+
+runnm=$usenm
+case "$reuseval" in
+true) runnm=false;;
+esac
+
+: nm options which may be necessary
+case "$nm_opt" in
+'') if $test -f /mach_boot; then
+ nm_opt=''
+ elif $test -d /usr/ccs/lib; then
+ nm_opt='-p'
+ elif $test -f /dgux; then
+ nm_opt='-p'
+ else
+ nm_opt=''
+ fi;;
+esac
+
+: nm options which may be necessary for shared libraries but illegal
+: for archive libraries. Thank you, Linux.
+case "$nm_so_opt" in
+'') case "$myuname" in
+ *linux*)
+ if nm --help | $grep 'dynamic' > /dev/null 2>&1; then
+ nm_so_opt='--dynamic'
+ fi
+ ;;
+ esac
+ ;;
+esac
+
+case "$runnm" in
+true)
+: get list of predefined functions in a handy place
+echo " "
+case "$libc" in
+'') libc=unknown
+ case "$libs" in
+ *-lc_s*) libc=`./loc libc_s.a $libc $libpth`
+ esac
+ ;;
+esac
+libnames='';
+case "$libs" in
+'') ;;
+*) for thislib in $libs; do
+ case "$thislib" in
+ -lc|-lc_s)
+ : Handle C library specially below.
+ ;;
+ -l*)
+ thislib=`echo $thislib | $sed -e 's/^-l//'`
+ if try=`./loc lib$thislib.$so.'*' X $libpth`; $test -f "$try"; then
+ :
+ elif try=`./loc lib$thislib.$so X $libpth`; $test -f "$try"; then
+ :
+ elif try=`./loc lib$thislib.a X $libpth`; $test -f "$try"; then
+ :
+ elif try=`./loc lib$thislib X $libpth`; $test -f "$try"; then
+ :
+ elif try=`./loc $thislib X $libpth`; $test -f "$try"; then
+ :
+ elif try=`./loc Slib$thislib.a X $xlibpth`; $test -f "$try"; then
+ :
+ else
+ try=''
+ fi
+ libnames="$libnames $try"
+ ;;
+ *) libnames="$libnames $thislib" ;;
+ esac
+ done
+ ;;
+esac
+xxx=normal
+case "$libc" in
+unknown)
+ set /lib/libc.$so
+ for xxx in $libpth; do
+ $test -r $1 || set $xxx/libc.$so
+ : The messy sed command sorts on library version numbers.
+ $test -r $1 || \
+ set `echo blurfl; echo $xxx/libc.$so.[0-9]* | \
+ tr ' ' '\012' | egrep -v '\.[A-Za-z]*$' | $sed -e '
+ h
+ s/[0-9][0-9]*/0000&/g
+ s/0*\([0-9][0-9][0-9][0-9][0-9]\)/\1/g
+ G
+ s/\n/ /' | \
+ sort | $sed -e 's/^.* //'`
+ eval set \$$#
+ done
+ $test -r $1 || set /usr/ccs/lib/libc.$so
+ $test -r $1 || set /lib/libsys_s.a
+ ;;
+*)
+ set blurfl
+ ;;
+esac
+if $test -r "$1"; then
+ echo "Your (shared) C library seems to be in $1."
+ libc="$1"
+elif $test -r /lib/libc && $test -r /lib/clib; then
+ echo "Your C library seems to be in both /lib/clib and /lib/libc."
+ xxx=apollo
+ libc='/lib/clib /lib/libc'
+ if $test -r /lib/syslib; then
+ echo "(Your math library is in /lib/syslib.)"
+ libc="$libc /lib/syslib"
+ fi
+elif $test -r "$libc" || (test -h "$libc") >/dev/null 2>&1; then
+ echo "Your C library seems to be in $libc, as you said before."
+elif $test -r $incpath/usr/lib/libc.a; then
+ libc=$incpath/usr/lib/libc.a;
+ echo "Your C library seems to be in $libc. That's fine."
+elif $test -r /lib/libc.a; then
+ libc=/lib/libc.a;
+ echo "Your C library seems to be in $libc. You're normal."
+else
+ if tans=`./loc libc.a blurfl/dyick $libpth`; $test -r "$tans"; then
+ :
+ elif tans=`./loc libc blurfl/dyick $libpth`; $test -r "$tans"; then
+ libnames="$libnames "`./loc clib blurfl/dyick $libpth`
+ elif tans=`./loc clib blurfl/dyick $libpth`; $test -r "$tans"; then
+ :
+ elif tans=`./loc Slibc.a blurfl/dyick $xlibpth`; $test -r "$tans"; then
+ :
+ elif tans=`./loc Mlibc.a blurfl/dyick $xlibpth`; $test -r "$tans"; then
+ :
+ else
+ tans=`./loc Llibc.a blurfl/dyick $xlibpth`
+ fi
+ if $test -r "$tans"; then
+ echo "Your C library seems to be in $tans, of all places."
+ libc=$tans
+ else
+ libc='blurfl'
+ fi
+fi
+if $test $xxx = apollo -o -r "$libc" || (test -h "$libc") >/dev/null 2>&1; then
+ dflt="$libc"
+ cat <<EOM
+
+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.
+
+EOM
+else
+ dflt=''
+ echo $libpth | tr ' ' '\012' | sort | uniq > libpath
+ cat >&4 <<EOM
+I can't seem to find your C library. I've looked in the following places:
+
+EOM
+ $sed 's/^/ /' libpath
+ cat <<EOM
+
+None of these seems to contain your C library. I need to get its name...
+
+EOM
+fi
+fn=f
+rp='Where is your C library?'
+. ./getfile
+libc="$ans"
+
+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 $xxx for later perusal:" >&4
+echo " "
+$sed 's/^/ /' libnames >&4
+echo " "
+$echo $n "This may take a while...$c" >&4
+
+: Linux may need the special Dynamic option to nm for shared libraries.
+: In general, this is stored in the nm_so_opt variable.
+: Unfortunately, that option may be fatal on non-shared libraries.
+for nm_libs_ext in $*; do
+ case $nm_libs_ext in
+ *$so*) nm $nm_so_opt $nm_opt $nm_libs_ext 2>/dev/null ;;
+ *) nm $nm_opt $nm_libs_ext 2>/dev/null ;;
+ esac
+done > libc.tmp
+
+$echo $n ".$c"
+$grep fprintf libc.tmp > libc.ptf
+xscan='eval "<libc.ptf $com >libc.list"; $echo $n ".$c" >&4'
+xrun='eval "<libc.tmp $com >libc.list"; echo "done" >&4'
+xxx='[ADTSIW]'
+if com="$sed -n -e 's/__IO//' -e 's/^.* $xxx *_[_.]*//p' -e 's/^.* $xxx //p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^__*//' -e 's/^\([a-zA-Z_0-9$]*\).*xtern.*/\1/p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e '/|UNDEF/d' -e '/FUNC..GL/s/^.*|__*//p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^.* D __*//p' -e 's/^.* D //p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^_//' -e 's/^\([a-zA-Z_0-9]*\).*xtern.*text.*/\1/p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^.*|FUNC |GLOB .*|//p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$grep '|' | $sed -n -e '/|COMMON/d' -e '/|DATA/d' \
+ -e '/ file/d' -e 's/^\([^ ]*\).*/\1/p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^.*|FUNC |GLOB .*|//p' -e 's/^.*|FUNC |WEAK .*|//p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^__//' -e '/|Undef/d' -e '/|Proc/s/ .*//p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e '/Def. Text/s/.* \([^ ]*\)\$/\1/p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+elif com="$sed -n -e 's/^[-0-9a-f ]*_\(.*\)=.*/\1/p'";\
+ eval $xscan;\
+ $contains '^fprintf$' libc.list >/dev/null 2>&1; then
+ eval $xrun
+else
+ nm -p $* 2>/dev/null >libc.tmp
+ $grep fprintf libc.tmp > libc.ptf
+ if com="$sed -n -e 's/^.* [ADTSIW] *_[_.]*//p' -e 's/^.* [ADTSIW] //p'";\
+ eval $xscan; $contains '^fprintf$' libc.list >/dev/null 2>&1
+ then
+ nm_opt='-p'
+ eval $xrun
+ else
+ echo " "
+ echo "nm didn't seem to work right. Trying ar instead..." >&4
+ com=''
+ if ar t $libc > libc.tmp; then
+ for thisname in $libnames; do
+ ar t $thisname >>libc.tmp
+ done
+ $sed -e 's/\.o$//' < libc.tmp > libc.list
+ echo "Ok." >&4
+ else
+ echo "ar didn't seem to work right." >&4
+ echo "Maybe this is a Cray...trying bld instead..." >&4
+ if bld t $libc | $sed -e 's/.*\///' -e 's/\.o:.*$//' > libc.list
+ then
+ for thisname in $libnames; do
+ bld t $libnames | \
+ $sed -e 's/.*\///' -e 's/\.o:.*$//' >>libc.list
+ ar t $thisname >>libc.tmp
+ done
+ echo "Ok." >&4
+ else
+ echo "That didn't work either. Giving up." >&4
+ exit 1
+ fi
+ fi
+ fi
+fi
+nm_extract="$com"
+if $test -f /lib/syscalls.exp; then
+ echo " "
+ echo "Also extracting names from /lib/syscalls.exp for good ole AIX..." >&4
+ $sed -n 's/^\([^ ]*\)[ ]*syscall$/\1/p' /lib/syscalls.exp >>libc.list
+fi
+;;
+esac
+$rm -f libnames libpath
+
+: is a C symbol defined?
+csym='tlook=$1;
+case "$3" in
+-v) tf=libc.tmp; tc=""; tdc="";;
+-a) tf=libc.tmp; tc="[0]"; tdc="[]";;
+*) tlook="^$1\$"; tf=libc.list; tc="()"; tdc="()";;
+esac;
+tx=yes;
+case "$reuseval-$4" in
+true-) ;;
+true-*) tx=no; eval "tval=\$$4"; case "$tval" in "") tx=yes;; esac;;
+esac;
+case "$tx" in
+yes)
+ case "$runnm" in
+ true)
+ if $contains $tlook $tf >/dev/null 2>&1;
+ then tval=true;
+ else tval=false;
+ fi;;
+ *)
+ echo "main() { extern short $1$tdc; printf(\"%hd\", $1$tc); }" > t.c;
+ if $cc $ccflags $ldflags -o t t.c $libs >/dev/null 2>&1;
+ then tval=true;
+ else tval=false;
+ fi;
+ $rm -f t t.c;;
+ esac;;
+*)
+ case "$tval" in
+ $define) tval=true;;
+ *) tval=false;;
+ esac;;
+esac;
+eval "$2=$tval"'
+
+: define an is-in-libc? function
+inlibc='echo " "; td=$define; tu=$undef;
+sym=$1; var=$2; eval "was=\$$2";
+tx=yes;
+case "$reuseval$was" in
+true) ;;
+true*) tx=no;;
+esac;
+case "$tx" in
+yes)
+ set $sym tres -f;
+ eval $csym;
+ case "$tres" in
+ true)
+ echo "$sym() found." >&4;
+ case "$was" in $undef) . ./whoa; esac; eval "$var=\$td";;
+ *)
+ echo "$sym() NOT found." >&4;
+ case "$was" in $define) . ./whoa; esac; eval "$var=\$tu";;
+ esac;;
+*)
+ case "$was" in
+ $define) echo "$sym() found." >&4;;
+ *) echo "$sym() NOT found." >&4;;
+ esac;;
+esac'
+
+: Check how to convert floats to strings.
+echo " "
+echo "Checking for an efficient way to convert floats to strings."
+$cat >try.c <<'EOP'
+#ifdef TRY_gconvert
+#define Gconvert(x,n,t,b) gconvert((x),(n),(t),(b))
+#endif
+#ifdef TRY_gcvt
+#define Gconvert(x,n,t,b) gcvt((x),(n),(b))
+#endif
+#ifdef TRY_sprintf
+#define Gconvert(x,n,t,b) sprintf((b),"%.*g",(n),(x))
+#endif
+main() {
+ char buf[64];
+ Gconvert(1.0, 8, 0, buf);
+ if (buf[0] != '1' || buf[1] != '\0')
+ exit(1);
+ Gconvert(0.0, 8, 0, buf);
+ if (buf[0] != '0' || buf[1] != '\0')
+ exit(1);
+ Gconvert(-1.0, 8, 0, buf);
+ if (buf[0] != '-' || buf[1] != '1' || buf[2] != '\0')
+ exit(1);
+ exit(0);
+}
+EOP
+case "$d_Gconvert" in
+gconvert*) xxx_list='gconvert gcvt sprintf' ;;
+gcvt*) xxx_list='gcvt gconvert sprintf' ;;
+sprintf*) xxx_list='sprintf gconvert gcvt' ;;
+*) xxx_list='gconvert gcvt sprintf' ;;
+esac
+
+for xxx_convert in $xxx_list; do
+ echo "Trying $xxx_convert"
+ $rm -f try try.o
+ if $cc $ccflags -DTRY_$xxx_convert $ldflags -o try \
+ try.c $libs > /dev/null 2>&1 ; then
+ echo "$xxx_convert" found. >&4
+ if ./try; then
+ echo "Good, $xxx_convert drops a trailing decimal point."
+ echo "I'll use $xxx_convert to convert floats into a string." >&4
+ break;
+ else
+ echo "But $xxx_convert keeps a trailing decimal point".
+ fi
+ else
+ echo "$xxx_convert NOT found." >&4
+ fi
+done
+
+case "$xxx_convert" in
+gconvert) d_Gconvert='gconvert((x),(n),(t),(b))' ;;
+gcvt) d_Gconvert='gcvt((x),(n),(b))' ;;
+*) d_Gconvert='sprintf((b),"%.*g",(n),(x))' ;;
+esac
+
+: Initialize h_fcntl
+h_fcntl=false
+
+: Initialize h_sysfile
+h_sysfile=false
+
+: determine filename position in cpp output
+echo " "
+echo "Computing filename position in cpp output for #include directives..." >&4
+echo '#include <stdio.h>' > foo.c
+$cat >fieldn <<EOF
+$startsh
+$cppstdin $cppflags $cppminus <foo.c 2>/dev/null | \
+$grep '^[ ]*#.*stdio\.h' | \
+while read cline; do
+ pos=1
+ set \$cline
+ while $test \$# -gt 0; do
+ if $test -r \`echo \$1 | $tr -d '"'\`; then
+ echo "\$pos"
+ exit 0
+ fi
+ shift
+ pos=\`expr \$pos + 1\`
+ done
+done
+EOF
+chmod +x fieldn
+fieldn=`./fieldn`
+$rm -f foo.c fieldn
+case $fieldn in
+'') pos='???';;
+1) pos=first;;
+2) pos=second;;
+3) pos=third;;
+*) pos="${fieldn}th";;
+esac
+echo "Your cpp writes the filename in the $pos field of the line."
+
+: locate header file
+$cat >findhdr <<EOF
+$startsh
+wanted=\$1
+name=''
+if test -f $usrinc/\$wanted; then
+ echo "$usrinc/\$wanted"
+ exit 0
+fi
+awkprg='{ print \$$fieldn }'
+echo "#include <\$wanted>" > foo\$\$.c
+$cppstdin $cppminus $cppflags < foo\$\$.c 2>/dev/null | \
+$grep "^[ ]*#.*\$wanted" | \
+while read cline; do
+ name=\`echo \$cline | $awk "\$awkprg" | $tr -d '"'\`
+ case "\$name" in
+ */\$wanted) echo "\$name"; exit 0;;
+ *) name='';;
+ esac;
+done;
+$rm -f foo\$\$.c;
+case "\$name" in
+'') exit 1;;
+esac
+EOF
+chmod +x findhdr
+
+: access call always available on UNIX
+set access d_access
+eval $inlibc
+
+: locate the flags for 'access()'
+case "$d_access" in
+"$define")
+ echo " "
+ $cat >access.c <<'EOCP'
+#include <sys/types.h>
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+main() {
+ exit(R_OK);
+}
+EOCP
+ : check sys/file.h first, no particular reason here
+ if $test `./findhdr sys/file.h` && \
+ $cc $cppflags -DI_SYS_FILE access.c -o access >/dev/null 2>&1 ; then
+ h_sysfile=true;
+ echo "<sys/file.h> defines the *_OK access constants." >&4
+ elif $test `./findhdr fcntl.h` && \
+ $cc $cppflags -DI_FCNTL access.c -o access >/dev/null 2>&1 ; then
+ h_fcntl=true;
+ echo "<fcntl.h> defines the *_OK access constants." >&4
+ elif $test `./findhdr unistd.h` && \
+ $cc $cppflags -DI_UNISTD access.c -o access >/dev/null 2>&1 ; then
+ echo "<unistd.h> defines the *_OK access constants." >&4
+ else
+ echo "I can't find the four *_OK access constants--I'll use mine." >&4
+ fi
+ ;;
+esac
+$rm -f access*
+
+: see if alarm exists
+set alarm d_alarm
+eval $inlibc
+
+: Look for GNU-cc style attribute checking
+echo " "
+echo "Checking whether your compiler can handle __attribute__ ..." >&4
+$cat >attrib.c <<'EOCP'
+#include <stdio.h>
+void croak (char* pat,...) __attribute__((format(printf,1,2),noreturn));
+EOCP
+if $cc $ccflags -c attrib.c >attrib.out 2>&1 ; then
+ if $contains 'warning' attrib.out >/dev/null 2>&1; then
+ echo "Your C compiler doesn't fully support __attribute__."
+ val="$undef"
+ else
+ echo "Your C compiler supports __attribute__."
+ val="$define"
+ fi
+else
+ echo "Your C compiler doesn't seem to understand __attribute__ at all."
+ val="$undef"
+fi
+set d_attribut
+eval $setvar
+$rm -f attrib*
+
+: see if bcmp exists
+set bcmp d_bcmp
+eval $inlibc
+
+: see if bcopy exists
+set bcopy d_bcopy
+eval $inlibc
+
+: see if setpgrp exists
+set setpgrp d_setpgrp
+eval $inlibc
+
+: see which flavor of setpgrp is in use
+case "$d_setpgrp" in
+"$define")
+ echo " "
+ $cat >set.c <<EOP
+main()
+{
+ if (getuid() == 0) {
+ printf("(I see you are running Configure as super-user...)\n");
+ setuid(1);
+ }
+ if (-1 == setpgrp(1, 1))
+ exit(1);
+ exit(0);
+}
+EOP
+ if $cc $ccflags $ldflags -o set set.c $libs >/dev/null 2>&1; then
+ ./set 2>/dev/null
+ case $? in
+ 0) echo "You have to use setpgrp() instead of setpgrp(pid, pgrp)." >&4
+ val="$undef";;
+ *) echo "You have to use setpgrp(pid, pgrp) instead of setpgrp()." >&4
+ val="$define";;
+ esac
+ else
+ if ./usg; then
+ xxx="USG one, i.e. you use setpgrp()."
+ val="$undef"
+ else
+ xxx="BSD one, i.e. you use setpgrp(pid, pgrp)."
+ val="$define"
+ fi
+ echo "Assuming your setpgrp is a $xxx" >&4
+ fi
+ ;;
+*) val="$undef";;
+esac
+set d_bsdpgrp
+eval $setvar
+$rm -f set set.c
+
+: see if bzero exists
+set bzero d_bzero
+eval $inlibc
+
+: check for length of integer
+echo " "
+case "$intsize" in
+'')
+ echo "Checking to see how big your integers are..." >&4
+ $cat >try.c <<'EOCP'
+#include <stdio.h>
+main()
+{
+ printf("%d\n", sizeof(int));
+ exit(0);
+}
+EOCP
+ if $cc $ccflags try.c -o try >/dev/null 2>&1 && ./try > /dev/null; then
+ intsize=`./try`
+ echo "Your integers are $intsize bytes long."
+ else
+ dflt='4'
+ echo "(I can't seem to compile the test program. Guessing...)"
+ rp="What is the size of an integer (in bytes)?"
+ . ./myread
+ intsize="$ans"
+ fi
+ ;;
+esac
+$rm -f try.c try
+
+: see if signal is declared as pointer to function returning int or void
+echo " "
+xxx=`./findhdr signal.h`
+$test "$xxx" && $cppstdin $cppminus $cppflags < $xxx >$$.tmp 2>/dev/null
+if $contains 'int.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then
+ echo "You have int (*signal())() instead of void." >&4
+ val="$undef"
+elif $contains 'void.*\*[ ]*signal' $$.tmp >/dev/null 2>&1 ; then
+ echo "You have void (*signal())() instead of int." >&4
+ val="$define"
+elif $contains 'extern[ ]*[(\*]*signal' $$.tmp >/dev/null 2>&1 ; then
+ echo "You have int (*signal())() instead of void." >&4
+ val="$undef"
+else
+ case "$d_voidsig" in
+ '')
+ echo "I can't determine whether signal handler returns void or int..." >&4
+ dflt=void
+ rp="What type does your signal handler return?"
+ . ./myread
+ case "$ans" in
+ v*) val="$define";;
+ *) val="$undef";;
+ esac;;
+ "$define")
+ echo "As you already told me, signal handler returns void." >&4;;
+ *)
+ echo "As you already told me, signal handler returns int." >&4;;
+ esac
+fi
+set d_voidsig
+eval $setvar
+case "$d_voidsig" in
+"$define") signal_t="void";;
+*) signal_t="int";;
+esac
+$rm -f $$.tmp
+
+: check for ability to cast large floats to 32-bit ints.
+echo " "
+echo 'Checking whether your C compiler can cast large floats to int32.' >&4
+if $test "$intsize" -eq 4; then
+ xxx=int
+else
+ xxx=long
+fi
+$cat >try.c <<EOCP
+#include <sys/types.h>
+#include <signal.h>
+$signal_t blech() { exit(3); }
+main()
+{
+ $xxx i32;
+ double f;
+ int result = 0;
+ signal(SIGFPE, blech);
+
+ f = (double) 0x7fffffff;
+ f = 10 * f;
+ i32 = ($xxx) f;
+
+ if (i32 != ($xxx) f)
+ result |= 1;
+ exit(result);
+}
+EOCP
+if $cc -o try $ccflags try.c >/dev/null 2>&1; then
+ ./try
+ yyy=$?
+else
+ echo "(I can't seem to compile the test program--assuming it can't)"
+ yyy=1
+fi
+case "$yyy" in
+0) val="$define"
+ echo "Yup, it can."
+ ;;
+*) val="$undef"
+ echo "Nope, it can't."
+ ;;
+esac
+set d_casti32
+eval $setvar
+$rm -f try try.*
+
+: check for ability to cast negative floats to unsigned
+echo " "
+echo 'Checking whether your C compiler can cast negative float to unsigned.' >&4
+$cat >try.c <<EOCP
+#include <sys/types.h>
+#include <signal.h>
+$signal_t blech() { exit(7); }
+$signal_t blech_in_list() { exit(4); }
+unsigned long dummy_long(p) unsigned long p; { return p; }
+unsigned int dummy_int(p) unsigned int p; { return p; }
+unsigned short dummy_short(p) unsigned short p; { return p; }
+main()
+{
+ double f = -123.;
+ unsigned long along;
+ unsigned int aint;
+ unsigned short ashort;
+ int result = 0;
+
+ signal(SIGFPE, blech);
+ along = (unsigned long)f;
+ aint = (unsigned int)f;
+ ashort = (unsigned short)f;
+ if (along != (unsigned long)-123)
+ result |= 1;
+ if (aint != (unsigned int)-123)
+ result |= 1;
+ if (ashort != (unsigned short)-123)
+ result |= 1;
+ f = (double)0x40000000;
+ f = f + f;
+ along = 0;
+ along = (unsigned long)f;
+ if (along != 0x80000000)
+ result |= 2;
+ f -= 1.;
+ along = 0;
+ along = (unsigned long)f;
+ if (along != 0x7fffffff)
+ result |= 1;
+ f += 2.;
+ along = 0;
+ along = (unsigned long)f;
+ if (along != 0x80000001)
+ result |= 2;
+ if (result)
+ exit(result);
+ signal(SIGFPE, blech_in_list);
+ f = 123.;
+ along = dummy_long((unsigned long)f);
+ aint = dummy_int((unsigned int)f);
+ ashort = dummy_short((unsigned short)f);
+ if (along != (unsigned long)123)
+ result |= 4;
+ if (aint != (unsigned int)123)
+ result |= 4;
+ if (ashort != (unsigned short)123)
+ result |= 4;
+ exit(result);
+
+}
+EOCP
+if $cc -o try $ccflags try.c >/dev/null 2>&1; then
+ ./try
+ castflags=$?
+else
+ echo "(I can't seem to compile the test program--assuming it can't)"
+ castflags=7
+fi
+case "$castflags" in
+0) val="$define"
+ echo "Yup, it can."
+ ;;
+*) val="$undef"
+ echo "Nope, it can't."
+ ;;
+esac
+set d_castneg
+eval $setvar
+$rm -f try.*
+
+: see if vprintf exists
+echo " "
+if set vprintf val -f d_vprintf; eval $csym; $val; then
+ echo 'vprintf() found.' >&4
+ val="$define"
+ $cat >vprintf.c <<'EOF'
+#include <varargs.h>
+
+main() { xxx("foo"); }
+
+xxx(va_alist)
+va_dcl
+{
+ va_list args;
+ char buf[10];
+
+ va_start(args);
+ exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
+}
+EOF
+ if $cc $ccflags vprintf.c -o vprintf >/dev/null 2>&1 && ./vprintf; then
+ echo "Your vsprintf() returns (int)." >&4
+ val2="$undef"
+ else
+ echo "Your vsprintf() returns (char*)." >&4
+ val2="$define"
+ fi
+else
+ echo 'vprintf() NOT found.' >&4
+ val="$undef"
+ val2="$undef"
+fi
+set d_vprintf
+eval $setvar
+val=$val2
+set d_charvspr
+eval $setvar
+
+: see if chown exists
+set chown d_chown
+eval $inlibc
+
+: see if chroot exists
+set chroot d_chroot
+eval $inlibc
+
+: see if chsize exists
+set chsize d_chsize
+eval $inlibc
+
+: check for const keyword
+echo " "
+echo 'Checking to see if your C compiler knows about "const"...' >&4
+$cat >const.c <<'EOCP'
+typedef struct spug { int drokk; } spug;
+main()
+{
+ const char *foo;
+ const spug y;
+}
+EOCP
+if $cc -c $ccflags const.c >/dev/null 2>&1 ; then
+ val="$define"
+ echo "Yup, it does."
+else
+ val="$undef"
+ echo "Nope, it doesn't."
+fi
+set d_const
+eval $setvar
+
+: see if crypt exists
+echo " "
+if set crypt val -f d_crypt; eval $csym; $val; then
+ echo 'crypt() found.' >&4
+ val="$define"
+ cryptlib=''
+else
+ cryptlib=`./loc Slibcrypt.a "" $xlibpth`
+ if $test -z "$cryptlib"; then
+ cryptlib=`./loc Mlibcrypt.a "" $xlibpth`
+ else
+ cryptlib=-lcrypt
+ fi
+ if $test -z "$cryptlib"; then
+ cryptlib=`./loc Llibcrypt.a "" $xlibpth`
+ else
+ cryptlib=-lcrypt
+ fi
+ if $test -z "$cryptlib"; then
+ cryptlib=`./loc libcrypt.a "" $libpth`
+ else
+ cryptlib=-lcrypt
+ fi
+ if $test -z "$cryptlib"; then
+ echo 'crypt() NOT found.' >&4
+ val="$undef"
+ else
+ val="$define"
+ fi
+fi
+set d_crypt
+eval $setvar
+
+: get csh whereabouts
+case "$csh" in
+'csh') val="$undef" ;;
+*) val="$define" ;;
+esac
+set d_csh
+eval $setvar
+full_csh=$csh
+
+: see if cuserid exists
+set cuserid d_cuserid
+eval $inlibc
+
+: define an alternate in-header-list? function
+inhdr='echo " "; td=$define; tu=$undef; yyy=$@;
+cont=true; xxf="echo \"<\$1> found.\" >&4";
+case $# in 2) xxnf="echo \"<\$1> NOT found.\" >&4";;
+*) xxnf="echo \"<\$1> NOT found, ...\" >&4";;
+esac;
+case $# in 4) instead=instead;; *) instead="at last";; esac;
+while $test "$cont"; do
+ xxx=`./findhdr $1`
+ var=$2; eval "was=\$$2";
+ if $test "$xxx" && $test -r "$xxx";
+ then eval $xxf;
+ eval "case \"\$$var\" in $undef) . ./whoa; esac"; eval "$var=\$td";
+ cont="";
+ else eval $xxnf;
+ eval "case \"\$$var\" in $define) . ./whoa; esac"; eval "$var=\$tu"; fi;
+ set $yyy; shift; shift; yyy=$@;
+ case $# in 0) cont="";;
+ 2) xxf="echo \"but I found <\$1> $instead.\" >&4";
+ xxnf="echo \"and I did not find <\$1> either.\" >&4";;
+ *) xxf="echo \"but I found <\$1\> instead.\" >&4";
+ xxnf="echo \"there is no <\$1>, ...\" >&4";;
+ esac;
+done;
+while $test "$yyy";
+do set $yyy; var=$2; eval "was=\$$2";
+ eval "case \"\$$var\" in $define) . ./whoa; esac"; eval "$var=\$tu";
+ set $yyy; shift; shift; yyy=$@;
+done'
+
+: see if this is a limits.h system
+set limits.h i_limits
+eval $inhdr
+
+: see if this is a float.h system
+set float.h i_float
+eval $inhdr
+
+: See if number of significant digits in a double precision number is known
+echo " "
+$cat >dbl_dig.c <<EOM
+#$i_limits I_LIMITS
+#$i_float I_FLOAT
+#ifdef I_LIMITS
+#include <limits.h>
+#endif
+#ifdef I_FLOAT
+#include <float.h>
+#endif
+#ifdef DBL_DIG
+printf("Contains DBL_DIG");
+#endif
+EOM
+$cppstdin $cppflags $cppminus < dbl_dig.c >dbl_dig.E 2>/dev/null
+if $contains 'DBL_DIG' dbl_dig.E >/dev/null 2>&1; then
+ echo "DBL_DIG found." >&4
+ val="$define"
+else
+ echo "DBL_DIG NOT found." >&4
+ val="$undef"
+fi
+$rm -f dbl_dig.?
+set d_dbl_dig
+eval $setvar
+
+: see if difftime exists
+set difftime d_difftime
+eval $inlibc
+
+: see if this is a dirent system
+echo " "
+if xinc=`./findhdr dirent.h`; $test "$xinc"; then
+ val="$define"
+ echo "<dirent.h> found." >&4
+else
+ val="$undef"
+ if xinc=`./findhdr sys/dir.h`; $test "$xinc"; then
+ echo "<sys/dir.h> found." >&4
+ echo " "
+ else
+ xinc=`./findhdr sys/ndir.h`
+ fi
+ echo "<dirent.h> NOT found." >&4
+fi
+set i_dirent
+eval $setvar
+
+: Look for type of directory structure.
+echo " "
+$cppstdin $cppflags $cppminus < "$xinc" > try.c
+
+case "$direntrytype" in
+''|' ')
+ case "$i_dirent" in
+ $define) guess1='struct dirent' ;;
+ *) guess1='struct direct' ;;
+ esac
+ ;;
+*) guess1="$direntrytype"
+ ;;
+esac
+
+case "$guess1" in
+'struct dirent') guess2='struct direct' ;;
+*) guess2='struct dirent' ;;
+esac
+
+if $contains "$guess1" try.c >/dev/null 2>&1; then
+ direntrytype="$guess1"
+ echo "Your directory entries are $direntrytype." >&4
+elif $contains "$guess2" try.c >/dev/null 2>&1; then
+ direntrytype="$guess2"
+ echo "Your directory entries seem to be $direntrytype." >&4
+else
+ echo "I don't recognize your system's directory entries." >&4
+ rp="What type is used for directory entries on this system?"
+ dflt="$guess1"
+ . ./myread
+ direntrytype="$ans"
+fi
+$rm -f try.c
+
+
+: see if the directory entry stores field length
+echo " "
+$cppstdin $cppflags $cppminus < "$xinc" > try.c
+if $contains 'd_namlen' try.c >/dev/null 2>&1; then
+ echo "Good, your directory entry keeps length information in d_namlen." >&4
+ val="$define"
+else
+ echo "Your directory entry does not know about the d_namlen field." >&4
+ val="$undef"
+fi
+set d_dirnamlen
+eval $setvar
+$rm -f try.c
+
+: see if dlerror exists
+xxx_runnm="$runnm"
+runnm=false
+set dlerror d_dlerror
+eval $inlibc
+runnm="$xxx_runnm"
+
+: see if dld is available
+set dld.h i_dld
+eval $inhdr
+
+: see if dlopen exists
+xxx_runnm="$runnm"
+runnm=false
+set dlopen d_dlopen
+eval $inlibc
+runnm="$xxx_runnm"
+
+: determine which dynamic loading, if any, to compile in
+echo " "
+dldir="ext/DynaLoader"
+case "$usedl" in
+$define|y|true)
+ dflt='y'
+ usedl="$define"
+ ;;
+$undef|n|false)
+ dflt='n'
+ usedl="$undef"
+ ;;
+*)
+ dflt='n'
+ case "$d_dlopen" in
+ $define) dflt='y' ;;
+ esac
+ case "$i_dld" in
+ $define) dflt='y' ;;
+ esac
+ : Does a dl_xxx.xs file exist for this operating system
+ $test -f ../$dldir/dl_${osname}.xs && dflt='y'
+ ;;
+esac
+rp="Do you wish to use dynamic loading?"
+. ./myread
+usedl="$ans"
+case "$ans" in
+y*) usedl="$define"
+ case "$dlsrc" in
+ '')
+ if $test -f ../$dldir/dl_${osname}.xs ; then
+ dflt="$dldir/dl_${osname}.xs"
+ elif $test "$d_dlopen" = "$define" ; then
+ dflt="$dldir/dl_dlopen.xs"
+ elif $test "$i_dld" = "$define" ; then
+ dflt="$dldir/dl_dld.xs"
+ else
+ dflt=''
+ fi
+ ;;
+ *) dflt="$dldir/$dlsrc"
+ ;;
+ esac
+ echo "The following dynamic loading files are available:"
+ : Can not go over to $dldir because getfile has path hard-coded in.
+ cd ..; ls -C $dldir/dl*.xs; cd UU
+ rp="Source file to use for dynamic loading"
+ fn="fne"
+ . ./getfile
+ usedl="$define"
+ : emulate basename
+ dlsrc=`echo $ans | $sed -e 's@.*/\([^/]*\)$@\1@'`
+
+ $cat << EOM
+
+Some systems may require passing special flags to $cc -c to
+compile modules that will be used to create a shared library.
+To use no flags, say "none".
+
+EOM
+ case "$cccdlflags" in
+ '') case "$gccversion" in
+ '') case "$osname" in
+ hpux) dflt='+z' ;;
+ next) dflt='none' ;;
+ solaris|svr4*|esix*) dflt='-Kpic' ;;
+ sunos) dflt='-pic' ;;
+ *) dflt='none' ;;
+ esac ;;
+ *) dflt='-fpic' ;;
+ esac ;;
+ *) dflt="$cccdlflags" ;;
+ esac
+ rp="Any special flags to pass to $cc -c to compile shared library modules?"
+ . ./myread
+ case "$ans" in
+ none) cccdlflags=' ' ;;
+ *) cccdlflags="$ans" ;;
+ esac
+
+ cat << EOM
+
+Some systems use ld to create libraries that can be dynamically loaded,
+while other systems (such as those using ELF) use $cc.
+
+EOM
+ case "$ld" in
+ '') $cat >try.c <<'EOM'
+/* Test for whether ELF binaries are produced */
+#include <fcntl.h>
+#include <stdlib.h>
+main() {
+ char b[4];
+ int i = open("a.out",O_RDONLY);
+ if(i == -1)
+ exit(1); /* fail */
+ if(read(i,b,4)==4 && b[0]==127 && b[1]=='E' && b[2]=='L' && b[3]=='F')
+ exit(0); /* succeed (yes, it's ELF) */
+ else
+ exit(1); /* fail */
+}
+EOM
+ if $cc $ccflags try.c >/dev/null 2>&1 && ./a.out; then
+ cat <<EOM
+You appear to have ELF support. I'll use $cc to build dynamic libraries.
+EOM
+ dflt="$cc"
+ else
+ echo "I'll use ld to build dynamic libraries."
+ dflt='ld'
+ fi
+ rm -f try.c a.out
+ ;;
+ *) dflt="$ld"
+ ;;
+ esac
+
+ rp="What command should be used to create dynamic libraries?"
+ . ./myread
+ ld="$ans"
+
+ cat << EOM
+
+Some systems may require passing special flags to $ld to create a
+library that can be dynamically loaded. If your ld flags include
+-L/other/path options to locate libraries outside your loader's normal
+search path, you may need to specify those -L options here as well. To
+use no flags, say "none".
+
+EOM
+ case "$lddlflags" in
+ '') case "$osname" in
+ hpux) dflt='-b' ;;
+ linux) dflt='-shared' ;;
+ next) dflt='none' ;;
+ solaris) dflt='-G' ;;
+ sunos) dflt='-assert nodefinitions' ;;
+ svr4*|esix*) dflt="-G $ldflags" ;;
+ *) dflt='none' ;;
+ esac
+ ;;
+ *) dflt="$lddlflags" ;;
+ esac
+
+: Try to guess additional flags to pick up local libraries.
+for thisflag in $ldflags; do
+ case "$thisflag" in
+ -L*)
+ case " $dflt " in
+ *" $thisflag "*) ;;
+ *) dflt="$dflt $thisflag" ;;
+ esac
+ ;;
+ esac
+done
+
+case "$dflt" in
+'') dflt='none' ;;
+esac
+
+ rp="Any special flags to pass to $ld to create a dynamically loaded library?"
+ . ./myread
+ case "$ans" in
+ none) lddlflags=' ' ;;
+ *) lddlflags="$ans" ;;
+ esac
+
+ cat <<EOM
+
+Some systems may require passing special flags to $cc to indicate that
+the resulting executable will use dynamic linking. To use no flags,
+say "none".
+
+EOM
+ case "$ccdlflags" in
+ '') case "$osname" in
+ hpux) dflt='-Wl,-E' ;;
+ linux) dflt='-rdynamic' ;;
+ next) dflt='none' ;;
+ sunos) dflt='none' ;;
+ *) dflt='none' ;;
+ esac ;;
+ *) dflt="$ccdlflags" ;;
+ esac
+ rp="Any special flags to pass to $cc to use dynamic loading?"
+ . ./myread
+ case "$ans" in
+ none) ccdlflags=' ' ;;
+ *) ccdlflags="$ans" ;;
+ esac
+ ;;
+*) usedl="$undef"
+ ld='ld'
+ dlsrc='dl_none.xs'
+ lddlflags=''
+ ccdlflags=''
+ ;;
+esac
+
+val="$undef"
+case "$osname" in
+esix*|svr4*)
+ case "$usedl" in
+ $define)
+ $cat <<EOM
+
+System V Release 4 systems can support dynamic loading
+only if libperl is created as a shared library.
+
+EOM
+ val="$define"
+ ;;
+ esac ;;
+esac
+set d_shrplib; eval $setvar
+case "$d_shrplib" in
+$define)
+ cat <<EOM >&4
+
+Be sure to add the perl source directory to the LD_LIBRARY_PATH
+environment variable before running make:
+ LD_LIBRARY_PATH=`cd ..;pwd`; export LD_LIBRARY_PATH
+or
+ setenv LD_LIBRARY_PATH `cd ..;pwd`
+
+EOM
+;;
+esac
+case "$d_shrplib" in
+$define)
+ case "$shrpdir" in
+ "") dflt="$archlib/CORE";;
+ *) dflt="$shrpdir";;
+ esac
+ rp="What directory should we install the shared libperl into?"
+ fn="d~"
+ . ./getfile
+ shrpdir="$ans"
+ ;;
+*) shrpdir='none'
+ ;;
+esac
+
+: see if dlfcn is available
+set dlfcn.h i_dlfcn
+eval $inhdr
+
+case "$usedl" in
+$define|y|true)
+ $cat << EOM
+
+On a few systems, the dynamically loaded modules that perl generates and uses
+will need a different extension then shared libs. The default will probably
+be appropriate.
+
+EOM
+ case "$dlext" in
+ '') dflt="$so" ;;
+ *) dflt="$dlext" ;;
+ esac
+ rp='What is the extension of dynamically loaded modules'
+ . ./myread
+ dlext="$ans"
+ ;;
+*)
+ dlext="none"
+ ;;
+esac
+
+: Check if dlsym need a leading underscore
+echo " "
+val="$undef"
+
+case "$dlsrc" in
+dl_dlopen.xs)
+ echo "Checking whether your dlsym() needs a leading underscore ..." >&4
+ $cat >dyna.c <<'EOM'
+fred () { }
+EOM
+
+$cat >fred.c<<EOM
+
+#include <stdio.h>
+#$i_dlfcn I_DLFCN
+#ifdef I_DLFCN
+#include <dlfcn.h> /* the dynamic linker include file for Sunos/Solaris */
+#else
+#include <sys/types.h>
+#include <nlist.h>
+#include <link.h>
+#endif
+
+extern int fred() ;
+
+main()
+{
+ void * handle ;
+ void * symbol ;
+#ifndef RTLD_LAZY
+ int mode = 1 ;
+#else
+ int mode = RTLD_LAZY ;
+#endif
+ handle = dlopen("./dyna.$dlext", mode) ;
+ if (handle == NULL) {
+ printf ("1\n") ;
+ exit(0);
+ }
+ symbol = dlsym(handle, "fred") ;
+ if (symbol == NULL) {
+ /* try putting a leading underscore */
+ symbol = dlsym(handle, "_fred") ;
+ if (symbol == NULL) {
+ printf ("2\n") ;
+ exit(0);
+ }
+ printf ("3\n") ;
+ }
+ else
+ printf ("4\n") ;
+ exit(0);
+}
+EOM
+ if $cc $ccflags $cccdlflags -c dyna.c > /dev/null 2>&1 &&
+ $ld $lddlflags -o dyna.$dlext dyna.o > /dev/null 2>&1 &&
+ $cc $ccflags $ldflags $cccdlflags $ccdlflags fred.c -o fred $libs > /dev/null 2>&1; then
+ xxx=`./fred`
+ case $xxx in
+ 1) echo "Test program failed using dlopen." >&4
+ echo "Perhaps you should not use dynamic loading." >&4;;
+ 2) echo "Test program failed using dlsym." >&4
+ echo "Perhaps you should not use dynamic loading." >&4;;
+ 3) echo "dlsym needs a leading underscore" >&4
+ val="$define" ;;
+ 4) echo "dlsym doesn't need a leading underscore." >&4;;
+ esac
+ else
+ echo "I can't compile and run the test program." >&4
+ fi
+ ;;
+esac
+
+$rm -f fred fred.? dyna.$dlext dyna.?
+
+set d_dlsymun
+eval $setvar
+
+: see if dup2 exists
+set dup2 d_dup2
+eval $inlibc
+
+: Locate the flags for 'open()'
+echo " "
+$cat >open3.c <<'EOCP'
+#include <sys/types.h>
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+main() {
+ if(O_RDONLY);
+#ifdef O_TRUNC
+ exit(0);
+#else
+ exit(1);
+#endif
+}
+EOCP
+: check sys/file.h first to get FREAD on Sun
+if $test `./findhdr sys/file.h` && \
+ $cc $cppflags "-DI_SYS_FILE" open3.c -o open3 >/dev/null 2>&1 ; then
+ h_sysfile=true;
+ echo "<sys/file.h> defines the O_* constants..." >&4
+ if ./open3; then
+ echo "and you have the 3 argument form of open()." >&4
+ val="$define"
+ else
+ echo "but not the 3 argument form of open(). Oh, well." >&4
+ val="$undef"
+ fi
+elif $test `./findhdr fcntl.h` && \
+ $cc "-DI_FCNTL" open3.c -o open3 >/dev/null 2>&1 ; then
+ h_fcntl=true;
+ echo "<fcntl.h> defines the O_* constants..." >&4
+ if ./open3; then
+ echo "and you have the 3 argument form of open()." >&4
+ val="$define"
+ else
+ echo "but not the 3 argument form of open(). Oh, well." >&4
+ val="$undef"
+ fi
+else
+ val="$undef"
+ echo "I can't find the O_* constant definitions! You got problems." >&4
+fi
+set d_open3
+eval $setvar
+$rm -f open3*
+
+: check for non-blocking I/O stuff
+case "$h_sysfile" in
+true) echo "#include <sys/file.h>" > head.c;;
+*)
+ case "$h_fcntl" in
+ true) echo "#include <fcntl.h>" > head.c;;
+ *) echo "#include <sys/fcntl.h>" > head.c;;
+ esac
+ ;;
+esac
+echo " "
+echo "Figuring out the flag used by open() for non-blocking I/O..." >&4
+case "$o_nonblock" in
+'')
+ $cat head.c > try.c
+ $cat >>try.c <<'EOCP'
+main() {
+#ifdef O_NONBLOCK
+ printf("O_NONBLOCK\n");
+ exit(0);
+#endif
+#ifdef O_NDELAY
+ printf("O_NDELAY\n");
+ exit(0);
+#endif
+#ifdef FNDELAY
+ printf("FNDELAY\n");
+ exit(0);
+#endif
+ exit(0);
+}
+EOCP
+ if $cc $ccflags $ldflags try.c -o try >/dev/null 2>&1; then
+ o_nonblock=`./try`
+ case "$o_nonblock" in
+ '') echo "I can't figure it out, assuming O_NONBLOCK will do.";;
+ *) echo "Seems like we can use $o_nonblock.";;
+ esac
+ else
+ echo "(I can't compile the test program; pray O_NONBLOCK is right!)"
+ fi
+ ;;
+*) echo "Using $hint value $o_nonblock.";;
+esac
+$rm -f try try.* .out core
+
+echo " "
+echo "Let's see what value errno gets from read() on a $o_nonblock file..." >&4
+case "$eagain" in
+'')
+ $cat head.c > try.c
+ $cat >>try.c <<EOCP
+#include <errno.h>
+#include <sys/types.h>
+#include <signal.h>
+#define MY_O_NONBLOCK $o_nonblock
+extern int errno;
+$signal_t blech(x) int x; { exit(3); }
+EOCP
+ $cat >> try.c <<'EOCP'
+main()
+{
+ int pd[2];
+ int pu[2];
+ char buf[1];
+ char string[100];
+
+ pipe(pd); /* Down: child -> parent */
+ pipe(pu); /* Up: parent -> child */
+ if (0 != fork()) {
+ int ret;
+ close(pd[1]); /* Parent reads from pd[0] */
+ close(pu[0]); /* Parent writes (blocking) to pu[1] */
+ if (-1 == fcntl(pd[0], F_SETFL, MY_O_NONBLOCK))
+ exit(1);
+ signal(SIGALRM, blech);
+ alarm(5);
+ if ((ret = read(pd[0], buf, 1)) > 0) /* Nothing to read! */
+ exit(2);
+ sprintf(string, "%d\n", ret);
+ write(2, string, strlen(string));
+ alarm(0);
+#ifdef EAGAIN
+ if (errno == EAGAIN) {
+ printf("EAGAIN\n");
+ goto ok;
+ }
+#endif
+#ifdef EWOULDBLOCK
+ if (errno == EWOULDBLOCK)
+ printf("EWOULDBLOCK\n");
+#endif
+ ok:
+ write(pu[1], buf, 1); /* Unblocks child, tell it to close our pipe */
+ sleep(2); /* Give it time to close our pipe */
+ alarm(5);
+ ret = read(pd[0], buf, 1); /* Should read EOF */
+ alarm(0);
+ sprintf(string, "%d\n", ret);
+ write(3, string, strlen(string));
+ exit(0);
+ }
+
+ close(pd[0]); /* We write to pd[1] */
+ close(pu[1]); /* We read from pu[0] */
+ read(pu[0], buf, 1); /* Wait for parent to signal us we may continue */
+ close(pd[1]); /* Pipe pd is now fully closed! */
+ exit(0); /* Bye bye, thank you for playing! */
+}
+EOCP
+ if $cc $ccflags $ldflags try.c -o try >/dev/null 2>&1; then
+ echo "$startsh" >mtry
+ echo "./try >try.out 2>try.ret 3>try.err || exit 4" >>mtry
+ chmod +x mtry
+ ./mtry >/dev/null 2>&1
+ case $? in
+ 0) eagain=`$cat try.out`;;
+ 1) echo "Could not perform non-blocking setting!";;
+ 2) echo "I did a successful read() for something that was not there!";;
+ 3) echo "Hmm... non-blocking I/O does not seem to be working!";;
+ *) echo "Something terribly wrong happened during testing.";;
+ esac
+ rd_nodata=`$cat try.ret`
+ echo "A read() system call with no data present returns $rd_nodata."
+ case "$rd_nodata" in
+ 0|-1) ;;
+ *)
+ echo "(That's peculiar, fixing that to be -1.)"
+ rd_nodata=-1
+ ;;
+ esac
+ case "$eagain" in
+ '')
+ echo "Forcing errno EAGAIN on read() with no data available."
+ eagain=EAGAIN
+ ;;
+ *)
+ echo "Your read() sets errno to $eagain when no data is available."
+ ;;
+ esac
+ status=`$cat try.err`
+ case "$status" in
+ 0) echo "And it correctly returns 0 to signal EOF.";;
+ -1) echo "But it also returns -1 to signal EOF, so be careful!";;
+ *) echo "However, your read() returns '$status' on EOF??";;
+ esac
+ val="$define"
+ if test "$status" -eq "$rd_nodata"; then
+ echo "WARNING: you can't distinguish between EOF and no data!"
+ val="$undef"
+ fi
+ else
+ echo "I can't compile the test program--assuming errno EAGAIN will do."
+ eagain=EAGAIN
+ fi
+ set d_eofnblk
+ eval $setvar
+ ;;
+*)
+ echo "Using $hint value $eagain."
+ echo "Your read() returns $rd_nodata when no data is present."
+ case "$d_eofnblk" in
+ "$define") echo "And you can see EOF because read() returns 0.";;
+ "$undef") echo "But you can't see EOF status from read() returned value.";;
+ *)
+ echo "(Assuming you can't see EOF status from read anyway.)"
+ d_eofnblk=$undef
+ ;;
+ esac
+ ;;
+esac
+$rm -f try try.* .out core head.c mtry
+
+: see if fchmod exists
+set fchmod d_fchmod
+eval $inlibc
+
+: see if fchown exists
+set fchown d_fchown
+eval $inlibc
+
+: see if this is an fcntl system
+set fcntl d_fcntl
+eval $inlibc
+
+: see if fgetpos exists
+set fgetpos d_fgetpos
+eval $inlibc
+
+: see if flock exists
+set flock d_flock
+eval $inlibc
+
+: see if fork exists
+set fork d_fork
+eval $inlibc
+
+: see if pathconf exists
+set pathconf d_pathconf
+eval $inlibc
+
+: see if fpathconf exists
+set fpathconf d_fpathconf
+eval $inlibc
+
+: see if fsetpos exists
+set fsetpos d_fsetpos
+eval $inlibc
+
+: see if gethostent exists
+set gethostent d_gethent
+eval $inlibc
+
+: see if getlogin exists
+set getlogin d_getlogin
+eval $inlibc
+
+: see if getpgrp exists
+set getpgrp d_getpgrp
+eval $inlibc
+
+: see if getpgrp2 exists
+set getpgrp2 d_getpgrp2
+eval $inlibc
+
+: see if getppid exists
+set getppid d_getppid
+eval $inlibc
+
+: see if getpriority exists
+set getpriority d_getprior
+eval $inlibc
+
+: see if this is a netinet/in.h or sys/in.h system
+set netinet/in.h i_niin sys/in.h i_sysin
+eval $inhdr
+
+: see if htonl --and friends-- exists
+val=''
+set htonl val
+eval $inlibc
+
+: Maybe they are macros.
+case "$val" in
+$undef)
+ $cat >htonl.c <<EOM
+#include <stdio.h>
+#include <sys/types.h>
+#$i_niin I_NETINET_IN
+#$i_sysin I_SYS_IN
+#ifdef I_NETINET_IN
+#include <netinet/in.h>
+#endif
+#ifdef I_SYS_IN
+#include <sys/in.h>
+#endif
+#ifdef htonl
+printf("Defined as a macro.");
+#endif
+EOM
+ $cppstdin $cppflags $cppminus < htonl.c >htonl.E 2>/dev/null
+ if $contains 'Defined as a macro' htonl.E >/dev/null 2>&1; then
+ val="$define"
+ echo "But it seems to be defined as a macro." >&4
+ fi
+ $rm -f htonl.?
+ ;;
+esac
+set d_htonl
+eval $setvar
+
+: see which of string.h or strings.h is needed
+echo " "
+strings=`./findhdr string.h`
+if $test "$strings" && $test -r "$strings"; then
+ echo "Using <string.h> instead of <strings.h>." >&4
+ val="$define"
+else
+ val="$undef"
+ strings=`./findhdr strings.h`
+ if $test "$strings" && $test -r "$strings"; then
+ echo "Using <strings.h> instead of <string.h>." >&4
+ else
+ echo "No string header found -- You'll surely have problems." >&4
+ fi
+fi
+set i_string
+eval $setvar
+case "$i_string" in
+"$undef") strings=`./findhdr strings.h`;;
+*) strings=`./findhdr string.h`;;
+esac
+
+: index or strchr
+echo " "
+if set index val -f; eval $csym; $val; then
+ if set strchr val -f d_strchr; eval $csym; $val; then
+ if $contains strchr "$strings" >/dev/null 2>&1 ; then
+ val="$define"
+ vali="$undef"
+ echo "strchr() found." >&4
+ else
+ val="$undef"
+ vali="$define"
+ echo "index() found." >&4
+ fi
+ else
+ val="$undef"
+ vali="$define"
+ echo "index() found." >&4
+ fi
+else
+ if set strchr val -f d_strchr; eval $csym; $val; then
+ val="$define"
+ vali="$undef"
+ echo "strchr() found." >&4
+ else
+ echo "No index() or strchr() found!" >&4
+ val="$undef"
+ vali="$undef"
+ fi
+fi
+set d_strchr; eval $setvar
+val="$vali"
+set d_index; eval $setvar
+
+: Look for isascii
+echo " "
+$cat >isascii.c <<'EOCP'
+#include <stdio.h>
+#include <ctype.h>
+main() {
+ int c = 'A';
+ if (isascii(c))
+ exit(0);
+ else
+ exit(1);
+}
+EOCP
+if $cc $ccflags $ldflags -o isascii isascii.c $libs >/dev/null 2>&1 ; then
+ echo "isascii() found." >&4
+ val="$define"
+else
+ echo "isascii() NOT found." >&4
+ val="$undef"
+fi
+set d_isascii
+eval $setvar
+$rm -f isascii*
+
+: see if killpg exists
+set killpg d_killpg
+eval $inlibc
+
+: see if link exists
+set link d_link
+eval $inlibc
+
+: see if localeconv exists
+set localeconv d_locconv
+eval $inlibc
+
+: see if lockf exists
+set lockf d_lockf
+eval $inlibc
+
+: see if lstat exists
+set lstat d_lstat
+eval $inlibc
+
+: see if mblen exists
+set mblen d_mblen
+eval $inlibc
+
+: see if mbstowcs exists
+set mbstowcs d_mbstowcs
+eval $inlibc
+
+: see if mbtowc exists
+set mbtowc d_mbtowc
+eval $inlibc
+
+: see if memcmp exists
+set memcmp d_memcmp
+eval $inlibc
+
+: see if memcpy exists
+set memcpy d_memcpy
+eval $inlibc
+
+: see if memmove exists
+set memmove d_memmove
+eval $inlibc
+
+: see if memset exists
+set memset d_memset
+eval $inlibc
+
+: see if mkdir exists
+set mkdir d_mkdir
+eval $inlibc
+
+: see if mkfifo exists
+set mkfifo d_mkfifo
+eval $inlibc
+
+: see if mktime exists
+set mktime d_mktime
+eval $inlibc
+
+: see if msgctl exists
+set msgctl d_msgctl
+eval $inlibc
+
+: see if msgget exists
+set msgget d_msgget
+eval $inlibc
+
+: see if msgsnd exists
+set msgsnd d_msgsnd
+eval $inlibc
+
+: see if msgrcv exists
+set msgrcv d_msgrcv
+eval $inlibc
+
+: see how much of the 'msg*(2)' library is present.
+h_msg=true
+echo " "
+case "$d_msgctl$d_msgget$d_msgsnd$d_msgrcv" in
+*"$undef"*) h_msg=false;;
+esac
+: we could also check for sys/ipc.h ...
+if $h_msg && $test `./findhdr sys/msg.h`; then
+ echo "You have the full msg*(2) library." >&4
+ val="$define"
+else
+ echo "You don't have the full msg*(2) library." >&4
+ val="$undef"
+fi
+set d_msg
+eval $setvar
+
+: see if this is a malloc.h system
+set malloc.h i_malloc
+eval $inhdr
+
+: see if stdlib is available
+set stdlib.h i_stdlib
+eval $inhdr
+
+: determine which malloc to compile in
+echo " "
+case "$usemymalloc" in
+''|y*|true) dflt='y' ;;
+n*|false) dflt='n' ;;
+*) dflt="$usemymalloc" ;;
+esac
+rp="Do you wish to attempt to use the malloc that comes with $package?"
+. ./myread
+usemymalloc="$ans"
+case "$ans" in
+y*|true)
+ usemymalloc='y'
+ mallocsrc='malloc.c'
+ mallocobj='malloc.o'
+ d_mymalloc="$define"
+ case "$libs" in
+ *-lmalloc*)
+ : Remove malloc from list of libraries to use
+ echo "Removing unneeded -lmalloc from library list" >&4
+ set `echo X $libs | $sed -e 's/-lmalloc / /' -e 's/-lmalloc$//'`
+ shift
+ libs="$*"
+ echo "libs = $libs" >&4
+ ;;
+ esac
+ ;;
+*)
+ usemymalloc='n'
+ mallocsrc=''
+ mallocobj=''
+ d_mymalloc="$undef"
+ ;;
+esac
+
+: compute the return types of malloc and free
+echo " "
+$cat >malloc.c <<END
+#$i_malloc I_MALLOC
+#$i_stdlib I_STDLIB
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef I_MALLOC
+#include <malloc.h>
+#endif
+#ifdef I_STDLIB
+#include <stdlib.h>
+#endif
+#ifdef TRY_MALLOC
+void *malloc();
+#endif
+#ifdef TRY_FREE
+void free();
+#endif
+END
+case "$malloctype" in
+'')
+ if $cc $ccflags -c -DTRY_MALLOC malloc.c >/dev/null 2>&1; then
+ malloctype='void *'
+ else
+ malloctype='char *'
+ fi
+ ;;
+esac
+echo "Your system wants malloc to return '$malloctype', it would seem." >&4
+
+case "$freetype" in
+'')
+ if $cc $ccflags -c -DTRY_FREE malloc.c >/dev/null 2>&1; then
+ freetype='void'
+ else
+ freetype='int'
+ fi
+ ;;
+esac
+echo "Your system uses $freetype free(), it would seem." >&4
+$rm -f malloc.[co]
+: see if nice exists
+set nice d_nice
+eval $inlibc
+
+: see if pause exists
+set pause d_pause
+eval $inlibc
+
+: see if pipe exists
+set pipe d_pipe
+eval $inlibc
+
+: see if poll exists
+set poll d_poll
+eval $inlibc
+
+: see if this is a pwd.h system
+set pwd.h i_pwd
+eval $inhdr
+
+case "$i_pwd" in
+$define)
+ xxx=`./findhdr pwd.h`
+ $cppstdin $cppflags $cppminus < $xxx >$$.h
+
+ if $contains 'pw_quota' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwquota
+ eval $setvar
+
+ if $contains 'pw_age' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwage
+ eval $setvar
+
+ if $contains 'pw_change' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwchange
+ eval $setvar
+
+ if $contains 'pw_class' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwclass
+ eval $setvar
+
+ if $contains 'pw_expire' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwexpire
+ eval $setvar
+
+ if $contains 'pw_comment' $$.h >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ set d_pwcomment
+ eval $setvar
+
+ $rm -f $$.h
+ ;;
+*)
+ val="$undef";
+ set d_pwquota; eval $setvar
+ set d_pwage; eval $setvar
+ set d_pwchange; eval $setvar
+ set d_pwclass; eval $setvar
+ set d_pwexpire; eval $setvar
+ set d_pwcomment; eval $setvar
+ ;;
+esac
+
+: see if readdir and friends exist
+set readdir d_readdir
+eval $inlibc
+set seekdir d_seekdir
+eval $inlibc
+set telldir d_telldir
+eval $inlibc
+set rewinddir d_rewinddir
+eval $inlibc
+
+: see if readlink exists
+set readlink d_readlink
+eval $inlibc
+
+: see if rename exists
+set rename d_rename
+eval $inlibc
+
+: see if rmdir exists
+set rmdir d_rmdir
+eval $inlibc
+
+: can bcopy handle overlapping blocks?
+val="$undef"
+case "$d_bcopy" in
+"$define")
+ echo " "
+ echo "Checking to see if your bcopy() can do overlapping copies..." >&4
+ $cat >foo.c <<'EOCP'
+main()
+{
+char buf[128], abc[128];
+char *b;
+int len;
+int off;
+int align;
+
+bcopy("abcdefghijklmnopqrstuvwxyz0123456789", abc, 36);
+
+for (align = 7; align >= 0; align--) {
+ for (len = 36; len; len--) {
+ b = buf+align;
+ bcopy(abc, b, len);
+ for (off = 1; off <= len; off++) {
+ bcopy(b, b+off, len);
+ bcopy(b+off, b, len);
+ if (bcmp(b, abc, len))
+ exit(1);
+ }
+ }
+}
+exit(0);
+}
+EOCP
+ if $cc $ccflags $ldflags foo.c -o safebcpy $libs >/dev/null 2>&1; then
+ if ./safebcpy 2>/dev/null; then
+ echo "Yes, it can."
+ val="$define"
+ else
+ echo "It can't, sorry."
+ fi
+ else
+ echo "(I can't compile the test program, so we'll assume not...)"
+ fi
+ ;;
+esac
+$rm -f foo.* safebcpy core
+set d_safebcpy
+eval $setvar
+
+: can memcpy handle overlapping blocks?
+val="$undef"
+case "$d_memcpy" in
+"$define")
+ echo " "
+ echo "Checking to see if your memcpy() can do overlapping copies..." >&4
+ $cat >foo.c <<'EOCP'
+main()
+{
+char buf[128], abc[128];
+char *b;
+int len;
+int off;
+int align;
+
+memcpy(abc, "abcdefghijklmnopqrstuvwxyz0123456789", 36);
+
+for (align = 7; align >= 0; align--) {
+ for (len = 36; len; len--) {
+ b = buf+align;
+ memcpy(b, abc, len);
+ for (off = 1; off <= len; off++) {
+ memcpy(b+off, b, len);
+ memcpy(b, b+off, len);
+ if (memcmp(b, abc, len))
+ exit(1);
+ }
+ }
+}
+exit(0);
+}
+EOCP
+ if $cc $ccflags $ldflags foo.c -o safemcpy $libs >/dev/null 2>&1; then
+ if ./safemcpy 2>/dev/null; then
+ echo "Yes, it can."
+ val="$define"
+ else
+ echo "It can't, sorry."
+ fi
+ else
+ echo "(I can't compile the test program, so we'll assume not...)"
+ fi
+ ;;
+esac
+$rm -f foo.* safemcpy core
+set d_safemcpy
+eval $setvar
+
+: see if select exists
+set select d_select
+eval $inlibc
+
+: see if semctl exists
+set semctl d_semctl
+eval $inlibc
+
+: see if semget exists
+set semget d_semget
+eval $inlibc
+
+: see if semop exists
+set semop d_semop
+eval $inlibc
+
+: see how much of the 'sem*(2)' library is present.
+h_sem=true
+echo " "
+case "$d_semctl$d_semget$d_semop" in
+*"$undef"*) h_sem=false;;
+esac
+: we could also check for sys/ipc.h ...
+if $h_sem && $test `./findhdr sys/sem.h`; then
+ echo "You have the full sem*(2) library." >&4
+ val="$define"
+else
+ echo "You don't have the full sem*(2) library." >&4
+ val="$undef"
+fi
+set d_sem
+eval $setvar
+
+: see if setegid exists
+set setegid d_setegid
+eval $inlibc
+
+: see if seteuid exists
+set seteuid d_seteuid
+eval $inlibc
+
+: see if setlinebuf exists
+set setlinebuf d_setlinebuf
+eval $inlibc
+
+: see if setlocale exists
+set setlocale d_setlocale
+eval $inlibc
+
+: see if setpgid exists
+set setpgid d_setpgid
+eval $inlibc
+
+: see if setpgrp2 exists
+set setpgrp2 d_setpgrp2
+eval $inlibc
+
+: see if setpriority exists
+set setpriority d_setprior
+eval $inlibc
+
+: see if setregid exists
+set setregid d_setregid
+eval $inlibc
+set setresgid d_setresgid
+eval $inlibc
+
+: see if setreuid exists
+set setreuid d_setreuid
+eval $inlibc
+set setresuid d_setresuid
+eval $inlibc
+
+: see if setrgid exists
+set setrgid d_setrgid
+eval $inlibc
+
+: see if setruid exists
+set setruid d_setruid
+eval $inlibc
+
+: see if setsid exists
+set setsid d_setsid
+eval $inlibc
+
+: see if shmctl exists
+set shmctl d_shmctl
+eval $inlibc
+
+: see if shmget exists
+set shmget d_shmget
+eval $inlibc
+
+: see if shmat exists
+set shmat d_shmat
+eval $inlibc
+: see what shmat returns
+case "$d_shmat" in
+"$define")
+ $cat >shmat.c <<'END'
+#include <sys/shm.h>
+void *shmat();
+END
+ if $cc $ccflags -c shmat.c >/dev/null 2>&1; then
+ shmattype='void *'
+ else
+ shmattype='char *'
+ fi
+ echo "and it returns ($shmattype)." >&4
+ : see if a prototype for shmat is available
+ xxx=`./findhdr sys/shm.h`
+ $cppstdin $cppflags $cppminus < $xxx > shmat.c 2>/dev/null
+ if $contains 'shmat.*(' shmat.c >/dev/null 2>&1; then
+ val="$define"
+ else
+ val="$undef"
+ fi
+ $rm -f shmat.[co]
+ ;;
+*)
+ val="$undef"
+ ;;
+esac
+set d_shmatprototype
+eval $setvar
+
+: see if shmdt exists
+set shmdt d_shmdt
+eval $inlibc
+
+: see how much of the 'shm*(2)' library is present.
+h_shm=true
+echo " "
+case "$d_shmctl$d_shmget$d_shmat$d_shmdt" in
+*"$undef"*) h_shm=false;;
+esac
+: we could also check for sys/ipc.h ...
+if $h_shm && $test `./findhdr sys/shm.h`; then
+ echo "You have the full shm*(2) library." >&4
+ val="$define"
+else
+ echo "You don't have the full shm*(2) library." >&4
+ val="$undef"
+fi
+set d_shm
+eval $setvar
+
+: see if sigvector exists -- since sigvec will match the substring
+echo " "
+if set sigvector val -f d_sigvectr; eval $csym; $val; then
+ echo 'sigvector() found--you must be running HP-UX.' >&4
+ val="$define"; set d_sigvectr; eval $setvar
+ val="$define"; set d_sigvec; eval $setvar
+else
+: try the original name
+ d_sigvectr="$undef"
+ if set sigvec val -f d_sigvec; eval $csym; $val; then
+ echo 'sigvec() found.' >&4
+ val="$define"; set d_sigvec; eval $setvar
+ else
+ echo 'sigvec() not found--race conditions with signals may occur.' >&4
+ val="$undef"; set d_sigvec; eval $setvar
+ fi
+fi
+
+: see if we have sigaction
+set sigaction d_sigaction
+eval $inlibc
+
+
+: see if sigsetjmp exists
+echo " "
+case "$d_sigsetjmp" in
+'')
+ $cat >set.c <<EOP
+#include <setjmp.h>
+sigjmp_buf env;
+int set = 1;
+main()
+{
+ if (sigsetjmp(env,1))
+ exit(set);
+ set = 0;
+ siglongjmp(env, 1);
+ exit(1);
+}
+EOP
+ if $cc $ccflags $ldflags set.c -o set $libs >/dev/null 2>&1; then
+ if ./set >/dev/null 2>&1; then
+ echo "POSIX sigsetjmp found." >&4
+ val="$define"
+ else
+ $cat <<EOM
+Uh-Oh! You have POSIX sigsetjmp and siglongjmp, but they do not work properly!!
+EOM
+ val="$undef"
+ fi
+ else
+ echo "Sigsetjmp not found." >&4
+ val="$undef"
+ fi
+ ;;
+*) val="$d_sigsetjmp"
+ case "$d_sigsetjmp" in
+ $define) echo "POSIX sigsetjmp found." >&4;;
+ $undef) echo "Sigsetjmp not found." >&4;;
+ esac
+ ;;
+esac
+set d_sigsetjmp
+eval $setvar
+$rm -f set.c set
+
+socketlib=''
+sockethdr=''
+: see whether socket exists
+echo " "
+$echo $n "Hmm... $c" >&4
+if set socket val -f d_socket; eval $csym; $val; then
+ echo "Looks like you have Berkeley networking support." >&4
+ d_socket="$define"
+ if set setsockopt val -f; eval $csym; $val; then
+ d_oldsock="$undef"
+ else
+ echo "...but it uses the old 4.1c interface, rather than 4.2" >&4
+ d_oldsock="$define"
+ fi
+else
+ if $contains socklib libc.list >/dev/null 2>&1; then
+ echo "Looks like you have Berkeley networking support." >&4
+ d_socket="$define"
+ : we will have to assume that it supports the 4.2 BSD interface
+ d_oldsock="$undef"
+ else
+ echo "You don't have Berkeley networking in libc.a..." >&4
+ if test -f /usr/lib/libnet.a; then
+ ( (nm $nm_opt /usr/lib/libnet.a | eval $nm_extract) || \
+ ar t /usr/lib/libnet.a) 2>/dev/null >> libc.list
+ if $contains socket libc.list >/dev/null 2>&1; then
+ echo "...but the Wollongong group seems to have hacked it in." >&4
+ socketlib="-lnet"
+ sockethdr="-I/usr/netinclude"
+ d_socket="$define"
+ if $contains setsockopt libc.list >/dev/null 2>&1; then
+ d_oldsock="$undef"
+ else
+ echo "...using the old 4.1c interface, rather than 4.2" >&4
+ d_oldsock="$define"
+ fi
+ else
+ echo "or even in libnet.a, which is peculiar." >&4
+ d_socket="$undef"
+ d_oldsock="$undef"
+ fi
+ else
+ echo "or anywhere else I see." >&4
+ d_socket="$undef"
+ d_oldsock="$undef"
+ fi
+ fi
+fi
+
+: see if socketpair exists
+set socketpair d_sockpair
+eval $inlibc
+
+: see if stat knows about block sizes
+echo " "
+xxx=`./findhdr sys/stat.h`
+if $contains 'st_blocks;' "$xxx" >/dev/null 2>&1 ; then
+ if $contains 'st_blksize;' "$xxx" >/dev/null 2>&1 ; then
+ echo "Your stat() knows about block sizes." >&4
+ val="$define"
+ else
+ echo "Your stat() doesn't know about block sizes." >&4
+ val="$undef"
+ fi
+else
+ echo "Your stat() doesn't know about block sizes." >&4
+ val="$undef"
+fi
+set d_statblks
+eval $setvar
+
+: see if _ptr and _cnt from stdio act std
+echo " "
+if $contains '_IO_fpos_t' `./findhdr stdio.h` >/dev/null 2>&1 ; then
+ echo "(Looks like you have stdio.h from Linux.)"
+ case "$stdio_ptr" in
+ '') stdio_ptr='((fp)->_IO_read_ptr)'
+ ptr_lval=$define
+ ;;
+ *) ptr_lval=$d_stdio_ptr_lval;;
+ esac
+ case "$stdio_cnt" in
+ '') stdio_cnt='((fp)->_IO_read_end - (fp)->_IO_read_ptr)'
+ cnt_lval=$undef
+ ;;
+ *) cnt_lval=$d_stdio_cnt_lval;;
+ esac
+ case "$stdio_base" in
+ '') stdio_base='((fp)->_IO_read_base)';;
+ esac
+ case "$stdio_bufsiz" in
+ '') stdio_bufsiz='((fp)->_IO_read_end - (fp)->_IO_read_base)';;
+ esac
+else
+ case "$stdio_ptr" in
+ '') stdio_ptr='((fp)->_ptr)'
+ ptr_lval=$define
+ ;;
+ *) ptr_lval=$d_stdio_ptr_lval;;
+ esac
+ case "$stdio_cnt" in
+ '') stdio_cnt='((fp)->_cnt)'
+ cnt_lval=$define
+ ;;
+ *) cnt_lval=$d_stdio_cnt_lval;;
+ esac
+ case "$stdio_base" in
+ '') stdio_base='((fp)->_base)';;
+ esac
+ case "$stdio_bufsiz" in
+ '') stdio_bufsiz='((fp)->_cnt + (fp)->_ptr - (fp)->_base)';;
+ esac
+fi
+: test whether _ptr and _cnt really work
+echo "Checking how std your stdio is..." >&4
+$cat >try.c <<EOP
+#include <stdio.h>
+#define FILE_ptr(fp) $stdio_ptr
+#define FILE_cnt(fp) $stdio_cnt
+main() {
+ FILE *fp = fopen("try.c", "r");
+ char c = getc(fp);
+ if (
+ 18 <= FILE_cnt(fp) &&
+ strncmp(FILE_ptr(fp), "include <stdio.h>\n", 18) == 0
+ )
+ exit(0);
+ exit(1);
+}
+EOP
+val="$undef"
+if $cc $ccflags $ldflags -o try try.c $libs >/dev/null 2>&1; then
+ if ./try; then
+ echo "Your stdio acts pretty std."
+ val="$define"
+ else
+ echo "Your stdio isn't very std."
+ fi
+else
+ echo "Your stdio doesn't appear very std."
+fi
+$rm -f try.c try
+set d_stdstdio
+eval $setvar
+
+: Can _ptr be used as an lvalue?
+case "$d_stdstdio$ptr_lval" in
+$define$define) val=$define ;;
+*) val=$undef ;;
+esac
+set d_stdio_ptr_lval
+eval $setvar
+
+: Can _cnt be used as an lvalue?
+case "$d_stdstdio$cnt_lval" in
+$define$define) val=$define ;;
+*) val=$undef ;;
+esac
+set d_stdio_cnt_lval
+eval $setvar
+
+: see if _base is also standard
+val="$undef"
+case "$d_stdstdio" in
+$define)
+ $cat >try.c <<EOP
+#include <stdio.h>
+#define FILE_base(fp) $stdio_base
+#define FILE_bufsiz(fp) $stdio_bufsiz
+main() {
+ FILE *fp = fopen("try.c", "r");
+ char c = getc(fp);
+ if (
+ 19 <= FILE_bufsiz(fp) &&
+ strncmp(FILE_base(fp), "#include <stdio.h>\n", 19) == 0
+ )
+ exit(0);
+ exit(1);
+}
+EOP
+ if $cc $ccflags $ldflags -o try try.c $libs > /dev/null 2>&1; then
+ if ./try; then
+ echo "Even its _base field acts std."
+ val="$define"
+ else
+ echo "But its _base field isn't std."
+ fi
+ else
+ echo "However, it seems to be lacking the _base field."
+ fi
+ $rm -f try.c try
+ ;;
+esac
+set d_stdiobase
+eval $setvar
+
+: see if strcoll exists
+set strcoll d_strcoll
+eval $inlibc
+
+: check for structure copying
+echo " "
+echo "Checking to see if your C compiler can copy structs..." >&4
+$cat >try.c <<'EOCP'
+main()
+{
+ struct blurfl {
+ int dyick;
+ } foo, bar;
+
+ foo = bar;
+}
+EOCP
+if $cc -c try.c >/dev/null 2>&1 ; then
+ val="$define"
+ echo "Yup, it can."
+else
+ val="$undef"
+ echo "Nope, it can't."
+fi
+set d_strctcpy
+eval $setvar
+$rm -f try.*
+
+: see if strerror and/or sys_errlist[] exist
+echo " "
+if set strerror val -f d_strerror; eval $csym; $val; then
+ echo 'strerror() found.' >&4
+ d_strerror="$define"
+ d_strerrm='strerror(e)'
+ if set sys_errlist val -a d_syserrlst; eval $csym; $val; then
+ echo "(You also have sys_errlist[], so we could roll our own strerror.)"
+ d_syserrlst="$define"
+ else
+ echo "(Since you don't have sys_errlist[], sterror() is welcome.)"
+ d_syserrlst="$undef"
+ fi
+elif xxx=`./findhdr string.h`; test "$xxx" || xxx=`./findhdr strings.h`; \
+ $contains '#[ ]*define.*strerror' "$xxx" >/dev/null 2>&1; then
+ echo 'strerror() found in string header.' >&4
+ d_strerror="$define"
+ d_strerrm='strerror(e)'
+ if set sys_errlist val -a d_syserrlst; eval $csym; $val; then
+ echo "(Most probably, strerror() uses sys_errlist[] for descriptions.)"
+ d_syserrlst="$define"
+ else
+ echo "(You don't appear to have any sys_errlist[], how can this be?)"
+ d_syserrlst="$undef"
+ fi
+elif set sys_errlist val -a d_syserrlst; eval $csym; $val; then
+echo "strerror() not found, but you have sys_errlist[] so we'll use that." >&4
+ d_strerror="$undef"
+ d_syserrlst="$define"
+ d_strerrm='((e)<0||(e)>=sys_nerr?"unknown":sys_errlist[e])'
+else
+ echo 'strerror() and sys_errlist[] NOT found.' >&4
+ d_strerror="$undef"
+ d_syserrlst="$undef"
+ d_strerrm='"unknown"'
+fi
+
+: see if strxfrm exists
+set strxfrm d_strxfrm
+eval $inlibc
+
+: see if symlink exists
+set symlink d_symlink
+eval $inlibc
+
+: see if syscall exists
+set syscall d_syscall
+eval $inlibc
+
+: see if sysconf exists
+set sysconf d_sysconf
+eval $inlibc
+
+: see if system exists
+set system d_system
+eval $inlibc
+
+: see if tcgetpgrp exists
+set tcgetpgrp d_tcgetpgrp
+eval $inlibc
+
+: see if tcsetpgrp exists
+set tcsetpgrp d_tcsetpgrp
+eval $inlibc
+
+: define an is-a-typedef? function
+typedef='type=$1; var=$2; def=$3; shift; shift; shift; inclist=$@;
+case "$inclist" in
+"") inclist="sys/types.h";;
+esac;
+eval "varval=\$$var";
+case "$varval" in
+"")
+ $rm -f temp.c;
+ for inc in $inclist; do
+ echo "#include <$inc>" >>temp.c;
+ done;
+ $cppstdin $cppflags $cppminus < temp.c >temp.E 2>/dev/null;
+ if $contains $type temp.E >/dev/null 2>&1; then
+ eval "$var=\$type";
+ else
+ eval "$var=\$def";
+ fi;
+ $rm -f temp.?;;
+*) eval "$var=\$varval";;
+esac'
+
+: see if this is a sys/times.h system
+set sys/times.h i_systimes
+eval $inhdr
+
+: see if times exists
+echo " "
+if set times val -f d_times; eval $csym; $val; then
+ echo 'times() found.' >&4
+ d_times="$define"
+ inc=''
+ case "$i_systimes" in
+ "$define") inc='sys/times.h';;
+ esac
+ set clock_t clocktype long stdio.h sys/types.h $inc
+ eval $typedef
+ dflt="$clocktype"
+ echo " "
+ rp="What type is returned by times() on this system?"
+ . ./myread
+ clocktype="$ans"
+else
+ echo 'times() NOT found, hope that will do.' >&4
+ d_times="$undef"
+ clocktype='int'
+fi
+
+: see if truncate exists
+set truncate d_truncate
+eval $inlibc
+
+: see if tzname[] exists
+echo " "
+if set tzname val -a d_tzname; eval $csym; $val; then
+ val="$define"
+ echo 'tzname[] found.' >&4
+else
+ val="$undef"
+ echo 'tzname[] NOT found.' >&4
+fi
+set d_tzname
+eval $setvar
+
+: see if umask exists
+set umask d_umask
+eval $inlibc
+
+: see how we will look up host name
+echo " "
+if false; then
+ : dummy stub to allow use of elif
+elif set uname val -f d_uname; eval $csym; $val; then
+ if ./xenix; then
+ $cat <<'EOM'
+uname() was found, but you're running xenix, and older versions of xenix
+have a broken uname(). If you don't really know whether your xenix is old
+enough to have a broken system call, use the default answer.
+
+EOM
+ dflt=y
+ case "$d_uname" in
+ "$define") dflt=n;;
+ esac
+ rp='Is your uname() broken?'
+ . ./myread
+ case "$ans" in
+ n*) d_uname="$define"; call=uname;;
+ esac
+ else
+ echo 'uname() found.' >&4
+ d_uname="$define"
+ call=uname
+ fi
+fi
+case "$d_gethname" in
+'') d_gethname="$undef";;
+esac
+case "$d_uname" in
+'') d_uname="$undef";;
+esac
+case "$d_phostname" in
+'') d_phostname="$undef";;
+esac
+
+: backward compatibility for d_hvfork
+if test X$d_hvfork != X; then
+ d_vfork="$d_hvfork"
+ d_hvfork=''
+fi
+: see if there is a vfork
+val=''
+set vfork val
+eval $inlibc
+
+: Ok, but do we want to use it. vfork is reportedly unreliable in
+: perl on Solaris 2.x, and probably elsewhere.
+case "$val" in
+$define)
+ echo " "
+ case "$usevfork" in
+ false) dflt='n';;
+ *) dflt='y';;
+ esac
+ rp="Some systems have problems with vfork(). Do you want to use it?"
+ . ./myread
+ case "$ans" in
+ y|Y) ;;
+ *)
+ echo "Ok, we won't use vfork()."
+ val="$undef"
+ ;;
+ esac
+ ;;
+esac
+set d_vfork
+eval $setvar
+case "$d_vfork" in
+$define) usevfork='true';;
+*) usevfork='false';;
+esac
+
+: see if this is an sysdir system
+set sys/dir.h i_sysdir
+eval $inhdr
+
+: see if this is an sysndir system
+set sys/ndir.h i_sysndir
+eval $inhdr
+
+: see if closedir exists
+set closedir d_closedir
+eval $inlibc
+
+case "$d_closedir" in
+"$define")
+ echo " "
+ echo "Checking whether closedir() returns a status..." >&4
+ cat > closedir.c <<EOM
+#$i_dirent I_DIRENT /**/
+#$i_sysdir I_SYS_DIR /**/
+#$i_sysndir I_SYS_NDIR /**/
+
+#if defined(I_DIRENT)
+#include <dirent.h>
+#if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
+#include <sys/dir.h>
+#endif
+#else
+#ifdef I_SYS_NDIR
+#include <sys/ndir.h>
+#else
+#ifdef I_SYS_DIR
+#ifdef hp9000s500
+#include <ndir.h> /* may be wrong in the future */
+#else
+#include <sys/dir.h>
+#endif
+#endif
+#endif
+#endif
+int main() { return closedir(opendir(".")); }
+EOM
+ if $cc $ccflags $ldflags -o closedir closedir.c $libs > /dev/null 2>&1; then
+ if ./closedir > /dev/null 2>&1 ; then
+ echo "Yes, it does."
+ val="$undef"
+ else
+ echo "No, it doesn't."
+ val="$define"
+ fi
+ else
+ echo "(I can't seem to compile the test program--assuming it doesn't)"
+ val="$define"
+ fi
+ ;;
+*)
+ val="$undef";
+ ;;
+esac
+set d_void_closedir
+eval $setvar
+$rm -f closedir*
+: check for volatile keyword
+echo " "
+echo 'Checking to see if your C compiler knows about "volatile"...' >&4
+$cat >try.c <<'EOCP'
+main()
+{
+ typedef struct _goo_struct goo_struct;
+ goo_struct * volatile goo = ((goo_struct *)0);
+ struct _goo_struct {
+ long long_int;
+ int reg_int;
+ char char_var;
+ };
+ typedef unsigned short foo_t;
+ char *volatile foo;
+ volatile int bar;
+ volatile foo_t blech;
+ foo = foo;
+}
+EOCP
+if $cc -c $ccflags try.c >/dev/null 2>&1 ; then
+ val="$define"
+ echo "Yup, it does."
+else
+ val="$undef"
+ echo "Nope, it doesn't."
+fi
+set d_volatile
+eval $setvar
+$rm -f try.*
+
+: see if there is a wait4
+set wait4 d_wait4
+eval $inlibc
+
+: see if waitpid exists
+set waitpid d_waitpid
+eval $inlibc
+
+: see if wcstombs exists
+set wcstombs d_wcstombs
+eval $inlibc
+
+: see if wctomb exists
+set wctomb d_wctomb
+eval $inlibc
+
+: preserve RCS keywords in files with variable substitution, grrr
+Date='$Date'
+Id='$Id'
+Log='$Log'
+RCSfile='$RCSfile'
+Revision='$Revision'
+
+: check for alignment requirements
+echo " "
+case "$alignbytes" in
+'') echo "Checking alignment constraints..." >&4
+ $cat >try.c <<'EOCP'
+struct foobar {
+ char foo;
+ double bar;
+} try;
+main()
+{
+ printf("%d\n", (char *)&try.bar - (char *)&try.foo);
+}
+EOCP
+ if $cc $ccflags try.c -o try >/dev/null 2>&1; then
+ dflt=`./try`
+ else
+ dflt='8'
+ echo"(I can't seem to compile the test program...)"
+ fi
+ ;;
+*) dflt="$alignbytes"
+ ;;
+esac
+rp="Doubles must be aligned on a how-many-byte boundary?"
+. ./myread
+alignbytes="$ans"
+$rm -f try.c try
+
+: Define several unixisms. Hints files or command line options
+: can be used to override them.
+case "$ar" in
+'') ar='ar';;
+esac
+case "$lib_ext" in
+'') lib_ext='.a';;
+esac
+case "$obj_ext" in
+'') obj_ext='.o';;
+esac
+case "$path_sep" in
+'') path_sep=':';;
+esac
+: Which makefile gets called first. This is used by make depend.
+case "$firstmakefile" in
+'') firstmakefile='makefile';;
+esac
+
+: check for ordering of bytes in a long
+case "$byteorder" in
+'')
+ $cat <<'EOM'
+
+In the following, larger digits indicate more significance. A big-endian
+machine like a Pyramid or a Motorola 680?0 chip will come out to 4321. A
+little-endian machine like a Vax or an Intel 80?86 chip would be 1234. Other
+machines may have weird orders like 3412. A Cray will report 87654321. If
+the test program works the default is probably right.
+I'm now running the test program...
+EOM
+ $cat >try.c <<'EOCP'
+#include <stdio.h>
+main()
+{
+ int i;
+ union {
+ unsigned long l;
+ char c[sizeof(long)];
+ } u;
+
+ if (sizeof(long) > 4)
+ u.l = (0x08070605L << 32) | 0x04030201L;
+ else
+ u.l = 0x04030201L;
+ for (i = 0; i < sizeof(long); i++)
+ printf("%c", u.c[i]+'0');
+ printf("\n");
+ exit(0);
+}
+EOCP
+ xxx_prompt=y
+ if $cc $ccflags try.c -o try >/dev/null 2>&1 && ./try > /dev/null; then
+ dflt=`./try`
+ case "$dflt" in
+ [1-4][1-4][1-4][1-4]|12345678|87654321)
+ echo "(The test program ran ok.)"
+ echo "byteorder=$dflt"
+ xxx_prompt=n
+ ;;
+ ????|????????) echo "(The test program ran ok.)" ;;
+ *) echo "(The test program didn't run right for some reason.)" ;;
+ esac
+ else
+ dflt='4321'
+ cat <<'EOM'
+(I can't seem to compile the test program. Guessing big-endian...)
+EOM
+ fi
+ case "$xxx_prompt" in
+ y)
+ rp="What is the order of bytes in a long?"
+ . ./myread
+ byteorder="$ans"
+ ;;
+ *) byteorder=$dflt
+ ;;
+ esac
+ ;;
+esac
+$rm -f try.c try
+
+: how do we catenate cpp tokens here?
+echo " "
+echo "Checking to see how your cpp does stuff like catenate tokens..." >&4
+$cat >cpp_stuff.c <<'EOCP'
+#define RCAT(a,b)a/**/b
+#define ACAT(a,b)a ## b
+RCAT(Rei,ser)
+ACAT(Cir,cus)
+EOCP
+$cppstdin $cppflags $cppminus <cpp_stuff.c >cpp_stuff.out 2>&1
+if $contains 'Circus' cpp_stuff.out >/dev/null 2>&1; then
+ echo "Oh! Smells like ANSI's been here."
+ echo "We can catify or stringify, separately or together!"
+ cpp_stuff=42
+elif $contains 'Reiser' cpp_stuff.out >/dev/null 2>&1; then
+ echo "Ah, yes! The good old days!"
+ echo "However, in the good old days we don't know how to stringify and"
+ echo "catify at the same time."
+ cpp_stuff=1
+else
+ $cat >&4 <<EOM
+Hmm, I don't seem to be able to catenate tokens with your cpp. You're going
+to have to edit the values of CAT[2-5] in config.h...
+EOM
+ cpp_stuff="/* Help! How do we handle cpp_stuff? */*/"
+fi
+$rm -f cpp_stuff.*
+
+: see if this is a db.h system
+set db.h i_db
+eval $inhdr
+
+case "$i_db" in
+define)
+ : Check the return type needed for hash
+ echo " "
+ echo "Checking return type needed for hash for Berkeley DB ..." >&4
+ $cat >try.c <<EOCP
+#$d_const HASCONST
+#ifndef HASCONST
+#define const
+#endif
+#include <sys/types.h>
+#include <db.h>
+u_int32_t hash_cb (ptr, size)
+const void *ptr;
+size_t size;
+{
+}
+HASHINFO info;
+main()
+{
+ info.hash = hash_cb;
+}
+EOCP
+ if $cc $ccflags -c try.c >try.out 2>&1 ; then
+ if $contains warning try.out >>/dev/null 2>&1 ; then
+ db_hashtype='int'
+ else
+ db_hashtype='u_int32_t'
+ fi
+ else
+ echo "I can't seem to compile the test program." >&4
+ db_hashtype=int
+ fi
+ $rm -f try.*
+ echo "Your version of Berkeley DB uses $db_hashtype for hash."
+ ;;
+*) db_hashtype=int
+ ;;
+esac
+
+case "$i_db" in
+define)
+ : Check the return type needed for prefix
+ echo " "
+ echo "Checking return type needed for prefix for Berkeley DB ..." >&4
+ cat >try.c <<EOCP
+#$d_const HASCONST
+#ifndef HASCONST
+#define const
+#endif
+#include <sys/types.h>
+#include <db.h>
+size_t prefix_cb (key1, key2)
+const DBT *key1;
+const DBT *key2;
+{
+}
+BTREEINFO info;
+main()
+{
+ info.prefix = prefix_cb;
+}
+EOCP
+ if $cc $ccflags -c try.c >try.out 2>&1 ; then
+ if $contains warning try.out >>/dev/null 2>&1 ; then
+ db_prefixtype='int'
+ else
+ db_prefixtype='size_t'
+ fi
+ else
+ echo "I can't seem to compile the test program." >&4
+ db_prefixtype='int'
+ fi
+ $rm -f try.*
+ echo "Your version of Berkeley DB uses $db_prefixtype for prefix."
+ ;;
+*) db_prefixtype='int'
+ ;;
+esac
+
+: check for void type
+echo " "
+echo "Checking to see how well your C compiler groks the void type..." >&4
+echo " "
+$cat >&4 <<EOM
+ Support flag bits are:
+ 1: basic void declarations.
+ 2: arrays of pointers to functions returning void.
+ 4: operations between pointers to and addresses of void functions.
+ 8: generic void pointers.
+EOM
+echo " "
+case "$voidflags" in
+'')
+ $cat >try.c <<'EOCP'
+#if TRY & 1
+void main() {
+#else
+main() {
+#endif
+ extern void moo(); /* function returning void */
+ void (*goo)(); /* ptr to func returning void */
+#if TRY & 8
+ void *hue; /* generic ptr */
+#endif
+#if TRY & 2
+ void (*foo[10])();
+#endif
+
+#if TRY & 4
+ if(goo == moo) {
+ exit(0);
+ }
+#endif
+ exit(0);
+}
+EOCP
+ if $cc -c -DTRY=$defvoidused try.c >.out 2>&1 ; then
+ voidflags=$defvoidused
+ echo "It appears to support void to the level $package wants ($defvoidused)."
+ if $contains warning .out >/dev/null 2>&1; then
+ echo "However, you might get some warnings that look like this:"
+ $cat .out
+ fi
+ else
+echo "Hmm, your compiler has some difficulty with void. Checking further..." >&4
+ if $cc -c -DTRY=1 try.c >/dev/null 2>&1 ; then
+ echo "It supports 1..."
+ if $cc -c -DTRY=3 try.c >/dev/null 2>&1 ; then
+ echo "It also supports 2..."
+ if $cc -c -DTRY=7 try.c >/dev/null 2>&1 ; then
+ voidflags=7
+ echo "And it supports 4 but not 8 definitely."
+ else
+ echo "It doesn't support 4..."
+ if $cc -c -DTRY=11 try.c >/dev/null 2>&1 ; then
+ voidflags=11
+ echo "But it supports 8."
+ else
+ voidflags=3
+ echo "Neither does it support 8."
+ fi
+ fi
+ else
+ echo "It does not support 2..."
+ if $cc -c -DTRY=13 try.c >/dev/null 2>&1 ; then
+ voidflags=13
+ echo "But it supports 4 and 8."
+ else
+ if $cc -c -DTRY=5 try.c >/dev/null 2>&1 ; then
+ voidflags=5
+ echo "And it supports 4 but has not heard about 8."
+ else
+ echo "However it supports 8 but not 4."
+ fi
+ fi
+ fi
+ else
+ echo "There is no support at all for void."
+ voidflags=0
+ fi
+ fi
+esac
+: Only prompt user if support does not match the level we want
+case "$voidflags" in
+"$defvoidused") ;;
+*)
+ dflt="$voidflags";
+ rp="Your void support flags add up to what?"
+ . ./myread
+ voidflags="$ans"
+ ;;
+esac
+$rm -f try.* .out
+
+: see what type file positions are declared as in the library
+set fpos_t fpostype long stdio.h sys/types.h
+eval $typedef
+echo " "
+dflt="$fpostype"
+rp="What is the type for file position used by fsetpos()?"
+. ./myread
+fpostype="$ans"
+
+: Store the full pathname to the sed program for use in the C program
+full_sed=$sed
+
+: see what type gids are declared as in the kernel
+set gid_t gidtype xxx stdio.h sys/types.h
+eval $typedef
+case "$gidtype" in
+xxx)
+ xxx=`./findhdr sys/user.h`
+ set `grep 'groups\[NGROUPS\];' "$xxx" 2>/dev/null` unsigned short
+ case $1 in
+ unsigned) dflt="$1 $2" ;;
+ *) dflt="$1" ;;
+ esac
+ ;;
+*) dflt="$gidtype";;
+esac
+echo " "
+rp="What is the type for group ids returned by getgid()?"
+. ./myread
+gidtype="$ans"
+
+: see if getgroups exists
+set getgroups d_getgrps
+eval $inlibc
+
+: Find type of 2nd arg to getgroups
+echo " "
+case "$d_getgrps" in
+'define')
+ case "$groupstype" in
+ '') dflt="$gidtype" ;;
+ *) dflt="$groupstype" ;;
+ esac
+ $cat <<EOM
+What is the type of the second argument to getgroups()? Usually this
+is the same as group ids, $gidtype, but not always.
+
+EOM
+ rp='What type is the second argument to getgroups()?'
+ . ./myread
+ groupstype="$ans"
+ ;;
+*) groupstype="$gidtype";;
+esac
+
+: see what type lseek is declared as in the kernel
+set off_t lseektype long stdio.h sys/types.h
+eval $typedef
+echo " "
+dflt="$lseektype"
+rp="What type is lseek's offset on this system declared as?"
+. ./myread
+lseektype="$ans"
+
+: see what type is used for mode_t
+set mode_t modetype int stdio.h sys/types.h
+eval $typedef
+dflt="$modetype"
+echo " "
+rp="What type is used for file modes?"
+. ./myread
+modetype="$ans"
+
+: locate the preferred pager for this system
+case "$pager" in
+'')
+ dflt=''
+ case "$pg" in
+ /*) dflt=$pg;;
+ esac
+ case "$more" in
+ /*) dflt=$more;;
+ esac
+ case "$less" in
+ /*) dflt=$less;;
+ esac
+ case "$dflt" in
+ '') dflt=/usr/ucb/more;;
+ esac
+ ;;
+*) dflt="$pager";;
+esac
+echo " "
+fn=f/
+rp='What pager is used on your system?'
+. ./getfile
+pager="$ans"
+
+: Cruising for prototypes
+echo " "
+echo "Checking out function prototypes..." >&4
+$cat >prototype.c <<'EOCP'
+main(int argc, char *argv[]) {
+ exit(0);}
+EOCP
+if $cc $ccflags -c prototype.c >prototype.out 2>&1 ; then
+ echo "Your C compiler appears to support function prototypes."
+ val="$define"
+else
+ echo "Your C compiler doesn't seem to understand function prototypes."
+ val="$undef"
+fi
+set prototype
+eval $setvar
+$rm -f prototype*
+
+: check for size of random number generator
+echo " "
+case "$randbits" in
+'')
+ echo "Checking to see how many bits your rand function produces..." >&4
+ $cat >try.c <<'EOCP'
+#include <stdio.h>
+main()
+{
+ register int i;
+ register unsigned long tmp;
+ register unsigned long max = 0L;
+
+ for (i = 1000; i; i--) {
+ tmp = (unsigned long)rand();
+ if (tmp > max) max = tmp;
+ }
+ for (i = 0; max; i++)
+ max /= 2;
+ printf("%d\n",i);
+}
+EOCP
+ if $cc try.c -o try >/dev/null 2>&1 ; then
+ dflt=`try`
+ else
+ dflt='?'
+ echo "(I can't seem to compile the test program...)"
+ fi
+ ;;
+*)
+ dflt="$randbits"
+ ;;
+esac
+rp='How many bits does your rand() function produce?'
+. ./myread
+randbits="$ans"
+$rm -f try.c try
+
+: see if ar generates random libraries by itself
+echo " "
+echo "Checking how to generate random libraries on your machine..." >&4
+echo 'int bar1() { return bar2(); }' > bar1.c
+echo 'int bar2() { return 2; }' > bar2.c
+$cat > foo.c <<'EOP'
+main() { printf("%d\n", bar1()); exit(0); }
+EOP
+$cc $ccflags -c bar1.c >/dev/null 2>&1
+$cc $ccflags -c bar2.c >/dev/null 2>&1
+$cc $ccflags -c foo.c >/dev/null 2>&1
+ar rc bar.a bar2.o bar1.o >/dev/null 2>&1
+if $cc $ccflags $ldflags -o foobar foo.o bar.a $libs > /dev/null 2>&1 &&
+ ./foobar >/dev/null 2>&1; then
+ echo "ar appears to generate random libraries itself."
+ orderlib=false
+ ranlib=":"
+elif ar ts bar.a >/dev/null 2>&1 &&
+ $cc $ccflags $ldflags -o foobar foo.o bar.a $libs > /dev/null 2>&1 &&
+ ./foobar >/dev/null 2>&1; then
+ echo "a table of contents needs to be added with 'ar ts'."
+ orderlib=false
+ ranlib="ar ts"
+else
+ case "$ranlib" in
+ :) ranlib='';;
+ '')
+ ranlib=`./loc ranlib X /usr/bin /bin /usr/local/bin`
+ $test -f $ranlib || ranlib=''
+ ;;
+ esac
+ if $test -n "$ranlib"; then
+ echo "your system has '$ranlib'; we'll use that."
+ orderlib=false
+ else
+ echo "your system doesn't seem to support random libraries"
+ echo "so we'll use lorder and tsort to order the libraries."
+ orderlib=true
+ ranlib=":"
+ fi
+fi
+$rm -f foo* bar*
+
+: see if sys/select.h has to be included
+set sys/select.h i_sysselct
+eval $inhdr
+
+: see if we should include time.h, sys/time.h, or both
+echo " "
+echo "Testing to see if we should include <time.h>, <sys/time.h> or both." >&4
+$echo $n "I'm now running the test program...$c"
+$cat >try.c <<'EOCP'
+#include <sys/types.h>
+#ifdef I_TIME
+#include <time.h>
+#endif
+#ifdef I_SYSTIME
+#ifdef SYSTIMEKERNEL
+#define KERNEL
+#endif
+#include <sys/time.h>
+#endif
+#ifdef I_SYSSELECT
+#include <sys/select.h>
+#endif
+main()
+{
+ struct tm foo;
+#ifdef S_TIMEVAL
+ struct timeval bar;
+#endif
+#ifdef S_TIMEZONE
+ struct timezone tzp;
+#endif
+ if (foo.tm_sec == foo.tm_sec)
+ exit(0);
+#ifdef S_TIMEVAL
+ if (bar.tv_sec == bar.tv_sec)
+ exit(0);
+#endif
+ exit(1);
+}
+EOCP
+flags=''
+for s_timezone in '-DS_TIMEZONE' ''; do
+sysselect=''
+for s_timeval in '-DS_TIMEVAL' ''; do
+for i_systimek in '' '-DSYSTIMEKERNEL'; do
+for i_time in '' '-DI_TIME'; do
+for i_systime in '-DI_SYSTIME' ''; do
+ case "$flags" in
+ '') $echo $n ".$c"
+ if $cc $ccflags \
+ $i_time $i_systime $i_systimek $sysselect $s_timeval $s_timezone \
+ try.c -o try >/dev/null 2>&1 ; then
+ set X $i_time $i_systime $i_systimek $sysselect $s_timeval
+ shift
+ flags="$*"
+ echo " "
+ $echo $n "Succeeded with $flags$c"
+ fi
+ ;;
+ esac
+done
+done
+done
+done
+done
+timeincl=''
+echo " "
+case "$flags" in
+*SYSTIMEKERNEL*) i_systimek="$define"
+ timeincl=`./findhdr sys/time.h`
+ echo "We'll include <sys/time.h> with KERNEL defined." >&4;;
+*) i_systimek="$undef";;
+esac
+case "$flags" in
+*I_TIME*) i_time="$define"
+ timeincl=`./findhdr time.h`" $timeincl"
+ echo "We'll include <time.h>." >&4;;
+*) i_time="$undef";;
+esac
+case "$flags" in
+*I_SYSTIME*) i_systime="$define"
+ timeincl=`./findhdr sys/time.h`" $timeincl"
+ echo "We'll include <sys/time.h>." >&4;;
+*) i_systime="$undef";;
+esac
+$rm -f try.c try
+
+: check for fd_set items
+$cat <<EOM
+
+Checking to see how well your C compiler handles fd_set and friends ...
+EOM
+$cat >fd_set.c <<EOCP
+#$i_systime I_SYS_TIME
+#$i_sysselct I_SYS_SELECT
+#$d_socket HAS_SOCKET
+#include <sys/types.h>
+#ifdef HAS_SOCKET
+#include <sys/socket.h> /* Might include <sys/bsdtypes.h> */
+#endif
+#ifdef I_SYS_TIME
+#include <sys/time.h>
+#else
+#ifdef I_SYS_SELECT
+#include <sys/select.h>
+#endif
+#endif
+main() {
+ fd_set fds;
+
+#ifdef TRYBITS
+ if(fds.fds_bits);
+#endif
+
+#if defined(FD_SET) && defined(FD_CLR) && defined(FD_ISSET) && defined(FD_ZERO)
+ exit(0);
+#else
+ exit(1);
+#endif
+}
+EOCP
+if $cc $ccflags -DTRYBITS fd_set.c -o fd_set >fd_set.out 2>&1 ; then
+ d_fds_bits="$define"
+ d_fd_set="$define"
+ echo "Well, your system knows about the normal fd_set typedef..." >&4
+ if ./fd_set; then
+ echo "and you have the normal fd_set macros (just as I'd expect)." >&4
+ d_fd_macros="$define"
+ else
+ $cat >&4 <<'EOM'
+but not the normal fd_set macros! Gaaack! I'll have to cover for you.
+EOM
+ d_fd_macros="$undef"
+ fi
+else
+ $cat <<'EOM'
+Hmm, your compiler has some difficulty with fd_set. Checking further...
+EOM
+ if $cc $ccflags fd_set.c -o fd_set >fd_set.out 2>&1 ; then
+ d_fds_bits="$undef"
+ d_fd_set="$define"
+ echo "Well, your system has some sort of fd_set available..." >&4
+ if ./fd_set; then
+ echo "and you have the normal fd_set macros." >&4
+ d_fd_macros="$define"
+ else
+ $cat <<'EOM'
+but not the normal fd_set macros! Gross! More work for me...
+EOM
+ d_fd_macros="$undef"
+ fi
+ else
+ echo "Well, you got zip. That's OK, I can roll my own fd_set stuff." >&4
+ d_fd_set="$undef"
+ d_fds_bits="$undef"
+ d_fd_macros="$undef"
+ fi
+fi
+$rm -f fd_set*
+
+
+: check for type of arguments to select. This will only really
+: work if the system supports prototypes and provides one for
+: select.
+case "$d_select" in
+$define)
+ : Make initial guess
+ case "$selecttype" in
+ ''|' ')
+ case "$d_fd_set" in
+ $define) xxx='fd_set *' ;;
+ *) xxx='int *' ;;
+ esac
+ ;;
+ *) xxx="$selecttype"
+ ;;
+ esac
+ : backup guess
+ case "$xxx" in
+ 'fd_set *') yyy='int *' ;;
+ 'int *') yyy='fd_set *' ;;
+ esac
+
+ $cat <<EOM
+
+Checking to see what type of arguments are expected by select().
+EOM
+ $cat >try.c <<EOCP
+#$i_systime I_SYS_TIME
+#$i_sysselct I_SYS_SELECT
+#$d_socket HAS_SOCKET
+#include <sys/types.h>
+#ifdef HAS_SOCKET
+#include <sys/socket.h> /* Might include <sys/bsdtypes.h> */
+#endif
+#ifdef I_SYS_TIME
+#include <sys/time.h>
+#else
+#ifdef I_SYS_SELECT
+#include <sys/select.h>
+#endif
+#endif
+main()
+{
+ int width;
+ Select_fd_set_t readfds;
+ Select_fd_set_t writefds;
+ Select_fd_set_t exceptfds;
+ struct timeval timeout;
+ select(width, readfds, writefds, exceptfds, &timeout);
+ exit(0);
+}
+EOCP
+ if $cc $ccflags -c -DSelect_fd_set_t="$xxx" try.c >/dev/null 2>&1 ; then
+ selecttype="$xxx"
+ echo "Your system uses $xxx for the arguments to select." >&4
+ elif $cc $ccflags -c -DSelect_fd_set_t="$yyy" try.c >/dev/null 2>&1 ; then
+ selecttype="$yyy"
+ echo "Your system uses $yyy for the arguments to select." >&4
+ else
+ rp='What is the type for the 2nd, 3rd, and 4th arguments to select?'
+ dflt="$xxx"
+ . ./myread
+ selecttype="$ans"
+ fi
+ $rm -f try.[co]
+ ;;
+*) selecttype='int *'
+ ;;
+esac
+
+: Trace out the files included by signal.h, then look for SIGxxx names.
+: Remove SIGARRAYSIZE used by HPUX.
+: Remove SIGTYP void lines used by OS2.
+xxx=`echo '#include <signal.h>' |
+ $cppstdin $cppminus $cppflags 2>/dev/null |
+ $grep '^[ ]*#.*include' |
+ $awk "{print \\$$fieldn}" | $sed 's!"!!g' | $sort | $uniq`
+: Check this list of files to be sure we have parsed the cpp output ok.
+: This will also avoid potentially non-existent files, such
+: as ../foo/bar.h
+xxxfiles=''
+for xx in $xxx /dev/null ; do
+ $test -f "$xx" && xxxfiles="$xxxfiles $xx"
+done
+: If we have found no files, at least try signal.h
+case "$xxxfiles" in
+'') xxxfiles=`./findhdr signal.h` ;;
+esac
+xxx=`awk '
+$1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $2 !~ /SIGARRAYSIZE/ && $3 !~ /void/ {
+ print substr($2, 4, 20)
+}
+$1 == "#" && $2 ~ /^define$/ && $3 ~ /^SIG[A-Z0-9]*$/ && $3 !~ /SIGARRAYSIZE/ && $4 !~ /void/ {
+ print substr($3, 4, 20)
+}' $xxxfiles`
+: Append some common names just in case the awk scan failed.
+xxx="$xxx ABRT ALRM BUS CHLD CLD CONT DIL EMT FPE HUP ILL INT IO IOT KILL"
+xxx="$xxx LOST PHONE PIPE POLL PROF PWR QUIT SEGV STKFLT STOP SYS TERM TRAP"
+xxx="$xxx TSTP TTIN TTOU URG USR1 USR2 USR3 USR4 VTALRM"
+xxx="$xxx WINCH WIND WINDOW XCPU XFSZ"
+: generate a few handy files for later
+$cat > signal.c <<'EOP'
+#include <sys/types.h>
+#include <signal.h>
+int main() {
+#ifdef NSIG
+printf("NSIG %d\n", NSIG);
+#else
+#ifdef _NSIG
+printf("NSIG %d\n", _NSIG);
+#endif
+#endif
+EOP
+echo $xxx | $tr ' ' '\012' | $sort | $uniq | $awk '
+{
+ printf "#ifdef SIG"; printf $1; printf "\n"
+ printf "printf(\""; printf $1; printf " %%d\\n\",SIG";
+ printf $1; printf ");\n"
+ printf "#endif\n"
+}
+END {
+ printf "}\n";
+}
+' >>signal.c
+$cat >signal.awk <<'EOP'
+BEGIN { ndups = 0 }
+$1 ~ /^NSIG$/ { nsig = $2 }
+($1 !~ /^NSIG$/) && (NF == 2) {
+ if ($2 > maxsig) { maxsig = $2 }
+ if (sig_name[$2]) {
+ dup_name[ndups] = $1
+ dup_num[ndups] = $2
+ ndups++
+ }
+ else {
+ sig_name[$2] = $1
+ sig_num[$2] = $2
+ }
+
+}
+END {
+ if (nsig == 0) { nsig = maxsig + 1 }
+ for (n = 1; n < nsig; n++) {
+ if (sig_name[n]) {
+ printf("%s %d\n", sig_name[n], sig_num[n])
+ }
+ else {
+ printf("NUM%d %d\n", n, n)
+ }
+ }
+ for (n = 0; n < ndups; n++) {
+ printf("%s %d\n", dup_name[n], dup_num[n])
+ }
+}
+EOP
+$cat >signal_cmd <<EOS
+$startsh
+$test -s signal.lst && exit 0
+if $cc $ccflags signal.c -o signal $ldflags >/dev/null 2>&1; then
+ ./signal | $sort -n +1 | $uniq | $awk -f signal.awk >signal.lst
+else
+ echo "(I can't seem be able to compile the test program -- Guessing)"
+ echo 'kill -l' >signal
+ set X \`csh -f <signal\`
+ $rm -f signal
+ shift
+ case \$# in
+ 0) set HUP INT QUIT ILL TRAP ABRT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM;;
+ esac
+ echo \$@ | $tr ' ' '\012' | \
+ $awk '{ printf $1; printf " %d\n", ++s; }' >signal.lst
+fi
+$rm -f signal.c signal signal.o
+EOS
+chmod a+x signal_cmd
+$eunicefix signal_cmd
+
+: generate list of signal names
+echo " "
+case "$sig_name" in
+'') sig_num='' ;;
+esac
+case "$sig_num" in
+'') sig_name='' ;;
+esac
+case "$sig_name" in
+'')
+ echo "Generating a list of signal names and numbers..." >&4
+ ./signal_cmd
+ sig_name=`$awk '{printf "%s ", $1}' signal.lst`
+ sig_name="ZERO $sig_name"
+ sig_num=`$awk '{printf "%d ", $2}' signal.lst`
+ sig_num="0 $sig_num"
+ ;;
+esac
+echo "The following signals are available:"
+echo " "
+echo $sig_name | $awk \
+'BEGIN { linelen = 0 }
+{
+ for (i = 1; i <= NF; i++) {
+ name = "SIG" $i " "
+ linelen = linelen + length(name)
+ if (linelen > 70) {
+ printf "\n"
+ linelen = length(name)
+ }
+ printf "%s", name
+ }
+ printf "\n"
+}'
+$rm -f signal signal.c signal.awk signal.lst signal_cmd
+
+: see what type is used for size_t
+set size_t sizetype 'unsigned int' stdio.h sys/types.h
+eval $typedef
+dflt="$sizetype"
https://perl5.git.perl.org / perl5.git / blobdiff