perl5.000 patch.0j: fix minor portability and build problems remaining even after patches 0a through 0i

Specifically, here's what's included:

Configure
        Regenerated with metaconfig patchlevel 50.  This changed
    a variety of things, mostly related to selecting and changing
    the installation prefix.
        Handle csh, sed, and byacc no matter what the setting of
    d_portable.  (This was causing glob problems in patch.0i).
        Set d_portable to default to 'y'.  It doesn't matter anyway,
    but gives people a warm fuzzy feeling.
        Remove useless d_group and d_passwd tests.
        Add check for <sys/stat.h>.
        Improve & generalize AIX version detection.
        Consider /opt/man/man1 as a possible place to install man pages.
        Be a little more robust about OS version changes when deciding
    if the output of uname -a has really changed.
  
MANIFEST
MANIFEST.new
        Added hints/mpeix.sh.

README
        Tell users the Configure defaults are probably right.

Makefile.SH
        Better detection of whether user has byacc.
        Use $(MAKE) instead of make.

U/Loc_sed.U
        Works again with d_portable='define'.

U/Myinit.U
        Set d_portable=define as default.

U/d_byacc.U
        Detect whether user has byacc even if d_portable=define.

U/d_csh.U
        Works again with d_portable='define'.

U/d_group.U
        Empty file to avoid useless metaconfig test.
        
U/d_passwd.U
        Empty file to avoid useless metaconfig test.

U/dist.patch
        This file contains two minor updates to dist3 PL50 that were used
    to generage Configure.

U/i_sysstat.U
        New test.  See if sys/stat.h is available.

config.H
        Updated.

config_h.SH
        Updated to metaconfig patchlevel 50.

ext/NDBM_File/Makefile.PL
ext/ODBM_File/Makefile.PL
        Add -lucb for SVR4 systems.

handy.h
        Protect agains g++-2.6.3, which predefines bool.  g++ can be
    used to compile an extension, but not perl itself.  Still, the
    extension will #include "perl.h", which eventually gets
    "handy.h", which #define's bool.  If this happens to you, add
    -DHAS_BOOL to your ccflags in your extension, or else ensure that
    _G_config.h is #include'd before perl.h.  (_G_config.h will define
    _G_HAVE_BOOL, if indeed your version of g++ has bool.)

hints/aix.sh
        Updated.  Handles AIX 3.2.x and 4.1.  Comments included!

hints/hpux_9.sh
        Updated.
hints/irix_4.sh
        Updated.   Includes comments for IRIX 4.0.4

hints/linux.sh
        Updated.  Beginnings of ELF support added, but completely
    untested.

hints/mpeix.sh
        New hint file.

hints/solaris_2.sh
        Useless ccflags="$ccflags" line removed.

hints/svr4.sh
        Updated.

installperl
        Doesn't  use Config anymore (it already reads config.sh
    directly.  That's probably backwards, but, oh well.
        Install perl.exp for AIX.

lib/ExtUtils/MakeMaker.pm
        Upgraded from 4.01 to 4.03.

makedepend.SH
        Use $MAKE instead of plain make.

Index: op.c
        Remove overlapping strcpy().

perl.h
        Add test for <sys/stat.h>.
        Delete unused VOIDSIG stuff.
        Delete unused   typedef struct lstring Lstring;

perl_exp.SH
        Add safexxxx calls.

pp_sys.c
        Delete wayward break in HAS_ALARM section.

proto.h
        Change true and false (!) in function prototypes to please
    g++-2.6.3, which has true and false built in.  (See notes for
    handy.h.)

Index: unixish.h
        Long-overdue housekeeping.
        HAS_GROUP and HAS_PASSWD are always defined.

util.c
        Yet another (char*) cast for bcmp.

vms/config.vms
        Changed comments to match unixish.h.

writemain.SH
        Now correctly handles nested static extensions.  Recent
    MakeMakers have moved where they get built.

x2p/a2p.h
        More definitions that will doubtless cause trouble somewhere
    else.

x2p/a2py.c
x2p/walk.c
        Remove unprotected  char *strchr();

1 files changed, 155 insertions, 73 deletions

diff --git a/Configure b/Configure
index a19a501fff..30fac81ca3 100755
--- a/Configure
+++ b/Configure
@@ -20,7 +20,7 @@
 
 # $Id: Head.U,v 3.0.1.6 1994/10/29 15:54:19 ram Exp $
 #
-# Generated on Tue Jan 24 16:22:48 EST 1995 [metaconfig 3.0 PL48]
+# Generated on Mon Feb  6 10:35:10 EST 1995 [metaconfig 3.0 PL50]
 
 cat >/tmp/c1$$ <<EOF
 ARGGGHHHH!!!!!
@@ -180,6 +180,7 @@ uniq=''
 uuname=''
 vi=''
 zcat=''
+full_sed=''
 libswanted=''
 hint=''
 myuname=''
@@ -227,6 +228,7 @@ d_alarm=''
 d_attribut=''
 d_bcmp=''
 d_bcopy=''
+d_byacc=''
 d_bzero=''
 d_casti32=''
 castflags=''
@@ -240,6 +242,7 @@ d_const=''
 cryptlib=''
 d_crypt=''
 d_csh=''
+full_csh=''
 d_cuserid=''
 d_dbl_dig=''
 d_difftime=''
@@ -274,7 +277,6 @@ d_getpgrp2=''
 d_getpgrp=''
 d_getppid=''
 d_getprior=''
-d_group=''
 d_htonl=''
 d_isascii=''
 d_killpg=''
@@ -300,7 +302,6 @@ d_msgrcv=''
 d_msgsnd=''
 d_nice=''
 d_open3=''
-d_passwd=''
 d_fpathconf=''
 d_pathconf=''
 d_pause=''
@@ -438,6 +439,7 @@ i_syssockio=''
 i_sysndir=''
 i_sysparam=''
 i_sysselct=''
+i_sysstat=''
 i_systimes=''
 i_sgtty=''
 i_termio=''
@@ -491,6 +493,7 @@ package=''
 spackage=''
 patchlevel=''
 prefix=''
+prefixexp=''
 installprivlib=''
 privlib=''
 privlibexp=''
@@ -631,12 +634,15 @@ inclwanted=''
 libswanted='net socket inet nsl nm ndbm gdbm dbm db malloc dl'
 libswanted="$libswanted dld ld sun m c cposix posix ndir dir crypt"
 libswanted="$libswanted ucb bsd BSD PW x"
-: We want to search /usr/shlib before most other libraries.
+: We probably want to search /usr/shlib before most other libraries.
 : This is only used by ext/util/extliblist
 glibpth=`echo " $glibpth " | sed -e 's! /usr/shlib ! !'`
 glibpth="/usr/shlib $glibpth"
 : Do not use vfork unless overridden by a hint file.
 usevfork=false
+: We might as well always be portable.  It makes no difference for
+: perl5, and makes people happy.
+d_portable=define
 
 : script used to extract .SH files with variable substitutions
 cat >extract <<'EOS'
@@ -745,8 +751,7 @@ error=''
 silent=''
 extractsh=''
 override=''
-optdef='optdef.sh'
-rm -f $optdef
+rm -f optdef.sh
 
 : option parsing
 while test $# -gt 0; do
@@ -778,24 +783,24 @@ while test $# -gt 0; do
 			echo "$me: ignoring -D $1" >&2
 			;;
 		*=*) echo "$1" | \
-				sed -e "s/'/'\"'\"'/g" -e "s/=\(.*\)/='\1'/" >> $optdef;;
-		*) echo "$1='define'" >> $optdef;;
+				sed -e "s/'/'\"'\"'/g" -e "s/=\(.*\)/='\1'/" >> optdef.sh;;
+		*) echo "$1='define'" >> optdef.sh;;
 		esac
 		shift
 		;;
 	-U)
 		shift
 		case "$1" in
-		*=) echo "$1" >> $optdef;;
+		*=) echo "$1" >> optdef.sh;;
 		*=*)
 			echo "$me: use '-D symbol=val', not '-U symbol=val'." >&2
 			echo "$me: ignoring -U $1" >&2
 			;;
-		*) echo "$1='undef'" >> $optdef;;
+		*) echo "$1='undef'" >> optdef.sh;;
 		esac
 		shift
 		;;
-	-V) echo "$me generated by metaconfig 3.0 PL48." >&2
+	-V) echo "$me generated by metaconfig 3.0 PL50." >&2
 		exit 0;;
 	--) break;;
 	-*) echo "$me: unknown option $1" >&2; shift; error=true;;
@@ -835,8 +840,8 @@ true) exec 1>/dev/null;;
 esac
 
 : run the defines and the undefines, if any, but leave the file out there...
-touch $optdef
-. ./$optdef
+touch optdef.sh
+. ./optdef.sh
 
 case "$extractsh" in
 true)
@@ -849,7 +854,7 @@ true)
 	echo "Fetching answers from $config_sh..."
 	cd ..
 	. $config
-	test "$override" && . ./$optdef
+	test "$override" && . ./optdef.sh
 	echo " "
 	. ./UU/extract
 	rm -rf UU
@@ -860,13 +865,19 @@ esac
 
 : set package name
 package=perl5
+first=`echo $package | sed -e 's/^\(.\).*/\1/'`
+last=`echo $package | sed -e 's/^.\(.*\)/\1/'`
+case "`echo AbyZ | tr '[:lower:]' '[:upper:]' 2>/dev/null`" in
+ABYZ) spackage=`echo $first | tr '[:lower:]' '[:upper:]'`$last;;
+*) spackage=`echo $first | tr '[a-z]' '[A-Z]'`$last;;
+esac
 
 : Eunice requires " " instead of "", can you believe it
 echo " "
 : Here we go...
 echo "Beginning of configuration questions for $package."
 
-trap 'echo " "; rm -rf $rmlist; exit 1' 1 2 3 15
+trap 'echo " "; test -d ../UU && rm -rf X $rmlist; exit 1' 1 2 3 15
 
 : Some greps do not return status, grrr.
 echo "grimblepritz" >grimble
@@ -1409,15 +1420,15 @@ case "$config_sh" in
 myuname=`( ($uname -a) 2>/dev/null || hostname) 2>&1`
 myuname=`echo $myuname | $sed -e 's/^[^=]*=//' -e 's/\///g' | \
 	./tr '[A-Z]' '[a-z]' | tr '\012' ' '`
+newmyuname="$myuname"
 dflt=n
 if test "$fastread" = yes; then
 	dflt=y
 elif test -f ../config.sh; then
-	oldmyuname=''
 	if $contains myuname= ../config.sh >/dev/null 2>&1; then
-		eval "old`grep myuname= ../config.sh`"
+		eval "`grep myuname= ../config.sh`"
 	fi
-	if test "X$myuname" = "X$oldmyuname"; then
+	if test "X$myuname" = "X$newmyuname"; then
 		dflt=y
 	fi
 fi
@@ -1436,7 +1447,6 @@ if test -f config.sh; then
 		tmp_n="$n"
 		tmp_c="$c"
 		. ./config.sh
-		test "$override" && . UU/$optdef
 		cp config.sh UU
 		n="$tmp_n"
 		c="$tmp_c"
@@ -1498,11 +1508,11 @@ EOM
 		aix) osname=aix
 			tmp=`( (oslevel) 2>/dev/null || echo "not found") 2>&1`
 			case "$tmp" in
-			'not found') osvers=3.2.0 ;;
+			'not found') osvers="$4"."$3" ;;
 			'<3240'|'<>3240') osvers=3.2.0 ;;
 			'=3240'|'>3240'|'<3250'|'<>3250') osvers=3.2.4 ;;
 			'=3250'|'>3250') osvers=3.2.5 ;;
-			*) osvers='' ;;
+			*) osvers=$tmp;;
 			esac
 			;;
 		dnix) osname=dnix
@@ -1689,7 +1699,7 @@ EOM
 		dflt=`echo $hintfile | $sed 's/\.sh$//'`
 		;;
 	esac
-			
+
 	$cat <<EOM
 
 You may give one or more space-separated answers, or "none" if appropriate.
@@ -1745,13 +1755,14 @@ cd UU
 	cp $config_sh config.sh 2>/dev/null
 	. ./config.sh
 	cd UU
-	test "$override" && . ./$optdef
 	cp ../config.sh .
 	n="$tmp_n"
 	c="$tmp_c"
 	hint=previous
 	;;
 esac
+test "$override" && . ./optdef.sh
+myuname="$newmyuname"
 
 : Restore computed paths
 for file in $loclist $trylist; do
@@ -3428,22 +3439,54 @@ 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 defaults.
+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 executables go
-case "$privlib" in
-'')
-	dflt=$prefix/lib/$package
-	;;
-*)  dflt="$privlib"
-	;;
-esac
+set dflt privlib lib/$package
+eval $prefixit
 $cat <<EOM
 
 There are some auxiliary files for $package that need to be put into a
@@ -3451,8 +3494,11 @@ private library directory that is accessible by everyone.
 
 EOM
 fn=d~+
-rp='Pathname where private library files will reside?'
+rp='Pathname where the private library files will reside?'
 . ./getfile
+if $test "X$privlibexp" != "X$ansexp"; then
+	installprivlib=''
+fi
 privlib="$ans"
 privlibexp="$ansexp"
 if $afs; then
@@ -3475,27 +3521,35 @@ else
 	installprivlib="$privlibexp"
 fi
 
+: 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
-case "$archname" in
-'')	tpath=`echo $PATH | sed -e 's/:/ /g'`
-	if xxx=`./loc arch blurfl $tpath`; test -f "$xxx"; then
-		tarchname=`arch`
+if xxx=`./loc arch blurfl $pth`; test -f "$xxx"; then
+	tarchname=`arch`
+	archname="${tarchname}-$osname"
+elif xxx=`./loc uname blurfl $pth`; test -f "$xxx" ; then
+	if uname -m > tmparch 2>&1 ; then
+		tarchname=`cat tmparch`
 		archname="${tarchname}-$osname"
-	elif xxx=`./loc uname blurfl $tpath`; test -f "$xxx" ; then
-		if uname -m > tmparch 2>&1 ; then
-			tarchname=`cat tmparch`
-			archname="${tarchname}-$osname"
-		fi
-		rm -f tmparch
-	else
-		archname="$osname"
 	fi
-	;;
-esac
+	$rm -f tmparch
+else
+	archname="$osname"
+fi
+set archlib archlib
+eval $prefixit
 case "$archlib" in
 '')
 	case "$privlib" in
-	'') dflt=`./loc . "." $prefix/lib /usr/local/lib /usr/lib /lib`;;
+	'')
+		dflt=`./loc . "." $prefixexp/lib /usr/local/lib /usr/lib /lib`
+		set dflt
+		eval $prefixup
+		;;
 	*)  dflt="$privlib/$archname";;
 	esac
 	;;
@@ -3503,7 +3557,7 @@ case "$archlib" in
 esac
 cat <<EOM
 
-$package contains architecture-dependent library files.  If you are
+$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.
@@ -3552,6 +3606,7 @@ esac'
 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
@@ -3623,6 +3678,14 @@ set d_bsdpgrp
 eval $setvar
 $rm -f set set.c
 
+: Check if we really have byacc
+case "$byacc" in
+''|'byacc') val="$undef" ;;
+*) val="$define" ;;
+esac
+set d_byacc
+eval $setvar
+
 : see if bzero exists
 set bzero d_bzero
 eval $inlibc
@@ -3915,6 +3978,7 @@ case "$csh" in
 esac
 set d_csh
 eval $setvar
+full_csh=$csh
 
 : see if cuserid exists
 set cuserid d_cuserid
@@ -4580,10 +4644,6 @@ eval $inlibc
 set getpriority d_getprior
 eval $inlibc
 
-: see if group exists
-set group d_group
-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
@@ -4951,10 +5011,6 @@ set d_open3
 eval $setvar
 $rm -f open3*
 
-: see if passwd exists
-set passwd d_passwd
-eval $inlibc
-
 : see if pause exists
 set pause d_pause
 eval $inlibc
@@ -5875,17 +5931,14 @@ $rm -f try.c try
 
 : determine where public executables go
 echo " "
-case "$bin" in
-'')
-	dflt="$prefix/bin"
-	;;
-*)
-	dflt="$bin"
-	;;
-esac
+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 $afs; then
@@ -6353,6 +6406,9 @@ rp="What is the type for file position used by fsetpos()?"
 . ./myread
 fpostype="$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 $typedef
@@ -6406,9 +6462,11 @@ rp="What type is lseek's offset on this system declared as?"
 lseektype="$ans"
 
 : determine where manual pages go
+set mansrc mansrc none
+eval $prefixit
 $cat <<EOM
 
-$package has manual pages available in source form.
+$spackage has manual pages available in source form.
 EOM
 case "$nroff" in
 nroff)
@@ -6420,18 +6478,22 @@ esac
 echo "If you don't want the manual sources installed, answer 'none'."
 case "$mansrc" in
 '')
-	lookpath="$prefix/man/man1 $prefix/man/u_man/man1 $prefix/man/l_man/man1"
-	lookpath="$lookpath /usr/local/man/man1 /usr/local/man/man1 /usr/man/manl"
+	lookpath="$prefixexp/man/man1 $prefixexp/man/u_man/man1"
+	lookpath="$lookpath $prefixexp/man/l_man/man1"
+	lookpath="$lookpath /usr/local/man/man1 /opt/man/man1 /usr/man/manl"
 	lookpath="$lookpath /usr/man/local/man1 /usr/man/l_man/man1"
 	lookpath="$lookpath /usr/local/man/u_man/man1 /usr/local/man/l_man/man1"
 	lookpath="$lookpath /usr/man/man.L"
-	mansrc=`./loc . $prefix/man/man1 $lookpath`
+	mansrc=`./loc . $prefixexp/man/man1 $lookpath`
 	if $test -d "$mansrc"; then
 		dflt="$mansrc"
 	else
 		dflt="$sysman"
 	fi
+	set dflt
+	eval $prefixup
 	;;
+' ') dflt=none;;
 *)  dflt="$mansrc"
 	;;
 esac
@@ -6439,8 +6501,15 @@ echo " "
 fn=dn~
 rp='Where do the manual pages (source) go?'
 . ./getfile
+if test "X$mansrcexp" != "X$ansexp"; then
+	installmansrc=''
+fi
 mansrc="$ans"
 mansrcexp="$ansexp"
+case "$mansrc" in
+'') mansrc=' '
+	installmansrc='';;
+esac
 if $afs; then
 	$cat <<EOM
 
@@ -6461,9 +6530,8 @@ else
 	installmansrc="$mansrcexp"
 fi
 
-
 case "$mansrc" in
-'') manext='0';;
+' ') manext='0';;
 *l) manext=l;;
 *n) manext=n;;
 *o) manext=l;;
@@ -6596,6 +6664,8 @@ fi
 $rm -f foo* bar* 
 
 : determine where public executable scripts go
+set scriptdir scriptdir
+eval $prefixit
 case "$scriptdir" in
 '')
 	dflt="$bin"
@@ -6603,7 +6673,9 @@ case "$scriptdir" in
 	$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 $prefix/script && dflt=$prefix/script
+	$test -d $prefixexp/script && dflt=$prefixexp/script
+	set dflt
+	eval $prefixup
 	;;
 *)  dflt="$scriptdir"
 	;;
@@ -6619,6 +6691,9 @@ 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
@@ -7430,6 +7505,10 @@ eval $setvar
 set sys/param.h i_sysparam
 eval $inhdr
 
+: see if sys/stat.h is available
+set sys/stat.h i_sysstat
+eval $inhdr
+
 : see if this is a unistd.h system
 set unistd.h i_unistd
 eval $inhdr
@@ -7561,6 +7640,7 @@ d_bcmp='$d_bcmp'
 d_bcopy='$d_bcopy'
 d_bsd='$d_bsd'
 d_bsdpgrp='$d_bsdpgrp'
+d_byacc='$d_byacc'
 d_bzero='$d_bzero'
 d_casti32='$d_casti32'
 d_castneg='$d_castneg'
@@ -7604,7 +7684,6 @@ d_getpgrp2='$d_getpgrp2'
 d_getpgrp='$d_getpgrp'
 d_getppid='$d_getppid'
 d_getprior='$d_getprior'
-d_group='$d_group'
 d_htonl='$d_htonl'
 d_index='$d_index'
 d_isascii='$d_isascii'
@@ -7633,7 +7712,6 @@ d_mymalloc='$d_mymalloc'
 d_nice='$d_nice'
 d_oldsock='$d_oldsock'
 d_open3='$d_open3'
-d_passwd='$d_passwd'
 d_pathconf='$d_pathconf'
 d_pause='$d_pause'
 d_phostname='$d_phostname'
@@ -7734,6 +7812,8 @@ extensions='$extensions'
 find='$find'
 flex='$flex'
 fpostype='$fpostype'
+full_csh='$full_csh'
+full_sed='$full_sed'
 gcc='$gcc'
 gccversion='$gccversion'
 gidtype='$gidtype'
@@ -7778,6 +7858,7 @@ i_sysndir='$i_sysndir'
 i_sysparam='$i_sysparam'
 i_sysselct='$i_sysselct'
 i_syssockio='$i_syssockio'
+i_sysstat='$i_sysstat'
 i_systime='$i_systime'
 i_systimek='$i_systimek'
 i_systimes='$i_systimes'
@@ -7853,6 +7934,7 @@ plibpth='$plibpth'
 pmake='$pmake'
 pr='$pr'
 prefix='$prefix'
+prefixexp='$prefixexp'
 privlib='$privlib'
 privlibexp='$privlibexp'
 prototype='$prototype'