X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Configure;h=4b57bcf3d7a093ea69af8acd56b59fbcef2c5fae;hb=2d736872f25b3e41d616d46e8286fe3f13ef058d;hp=9678a6ee91884e10877182419c0099b3ab2ea233;hpb=53133ed1c5068175ce48d34c24e23b1aa3a97766;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/Configure b/Configure
index 9678a6e..4b57bcf 100755
--- a/Configure
+++ b/Configure
@@ -20,7 +20,7 @@
 
 # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
 #
-# Generated on Mon Mar 18 16:52:30 EET 2002 [metaconfig 3.0 PL70]
+# Generated on Mon Sep 30 10:11:20 METDST 2002 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >c1$$ <<EOF
@@ -301,8 +301,6 @@ baserev=''
 bin=''
 binexp=''
 installbin=''
-bincompat5005=''
-d_bincompat5005=''
 byteorder=''
 cc=''
 ccflags=''
@@ -497,6 +495,7 @@ d_getsbyport=''
 d_gmtime_r=''
 gmtime_r_proto=''
 d_gnulibc=''
+gnulibc_version=''
 d_hasmntopt=''
 d_htonl=''
 d_inetaton=''
@@ -539,6 +538,7 @@ d_mmap=''
 mmaptype=''
 d_modfl=''
 d_modfl_pow32_bug=''
+d_modflproto=''
 d_mprotect=''
 d_msg=''
 d_msgctl=''
@@ -548,6 +548,7 @@ d_msgrcv=''
 d_msgsnd=''
 d_msync=''
 d_munmap=''
+d_nanosleep=''
 d_nice=''
 d_nl_langinfo=''
 d_off64_t=''
@@ -755,6 +756,7 @@ fflushNULL=''
 fflushall=''
 fpossize=''
 fpostype=''
+gccansipedantic=''
 gccosandvers=''
 gccversion=''
 gidformat=''
@@ -1486,23 +1488,23 @@ while test $# -gt 0; do
 	    zzz=''
 	    uuu=undef
 	    case "$yyy" in
-            *=*) zzz=`echo $yyy|sed 's!=.*!!'`
+            *=*) zzz=`echo "$yyy"|sed 's!=.*!!'`
                  case "$zzz" in
                  *:*) zzz='' ;;
                  *)   xxx=append
-                      zzz=" "`echo $yyy|sed 's!^[^=]*=!!'` 
-                      yyy=`echo $yyy|sed 's!=.*!!'` ;;
+                      zzz=" "`echo "$yyy"|sed 's!^[^=]*=!!'` 
+                      yyy=`echo "$yyy"|sed 's!=.*!!'` ;;
                  esac
                  ;;
             esac
             case "$xxx" in
             '')  case "$yyy" in
-                 *:*) xxx=`echo $yyy|sed 's!:.*!!'`
-                      yyy=`echo $yyy|sed 's!^[^:]*:!!'`
-                      zzz=`echo $yyy|sed 's!^[^=]*=!!'`
-                      yyy=`echo $yyy|sed 's!=.*!!'` ;;
-                 *)   xxx=`echo $yyy|sed 's!:.*!!'`
-                      yyy=`echo $yyy|sed 's!^[^:]*:!!'` ;;
+                 *:*) xxx=`echo "$yyy"|sed 's!:.*!!'`
+                      yyy=`echo "$yyy"|sed 's!^[^:]*:!!'`
+                      zzz=`echo "$yyy"|sed 's!^[^=]*=!!'`
+                      yyy=`echo "$yyy"|sed 's!=.*!!'` ;;
+                 *)   xxx=`echo "$yyy"|sed 's!:.*!!'`
+                      yyy=`echo "$yyy"|sed 's!^[^:]*:!!'` ;;
                  esac
                  ;;       
             esac
@@ -1860,6 +1862,11 @@ if test X"$trnl" = X; then
 	esac
 fi
 if test X"$trnl" = X; then
+       case "`echo foo|tr '\r\n' xy 2>/dev/null`" in
+       fooxy) trnl='\n\r' ;;
+       esac
+fi
+if test X"$trnl" = X; then
 	cat <<EOM >&2
 
 $me: Fatal Error: cannot figure out how to translate newlines with 'tr'.
@@ -2148,9 +2155,10 @@ for dir in \$*; do
 	elif test -f \$dir/\$thing.exe; then
 		if test -n "$DJGPP"; then
 			echo \$dir/\$thing.exe
-		else
+		elif test "$eunicefix" != ":"; then
 			: on Eunice apparently
 			echo \$dir/\$thing
+			exit 0
 		fi
 		exit 0
 	fi
@@ -2387,7 +2395,16 @@ EOM
                     fi
                 fi  
                 case "$ans" in
-                [yY]*) cc=gcc; ccname=gcc; ccflags=''; despair=no ;;
+                [yY]*) cc=gcc; ccname=gcc; ccflags=''; despair=no;
+                       if $test -f usethreads.cbu; then
+                           $cat >&4 <<EOM 
+
+*** However, any setting of the C compiler flags (e.g. for thread support)
+*** has been lost.  It may be necessary to pass -Dcc=gcc to Configure
+*** (together with e.g. -Dusethreads).
+
+EOM
+                       fi;;
                 esac
             fi
         fi
@@ -3066,6 +3083,9 @@ EOM
 			;;
 		next*) osname=next ;;
 		nonstop-ux) osname=nonstopux ;;
+		openbsd) osname=openbsd
+                	osvers="$3"
+                	;;
 		POSIX-BC | posix-bc ) osname=posix-bc
 			osvers="$3"
 			;;
@@ -3410,20 +3430,100 @@ $undef$define) . ./whoa; eval "$var=\$tu";;
 *) eval "$var=$val";;
 esac'
 
+case "$usesocks" in
+$define|true|[yY]*)	dflt='y';;
+*) dflt='n';;
+esac
+cat <<EOM
+
+Perl can be built to use the SOCKS proxy protocol library.  To do so,
+Configure must be run with -Dusesocks.  If you use SOCKS you also need
+to use the PerlIO abstraction layer, this will be implicitly selected.
+
+If this doesn't make any sense to you, just accept the default '$dflt'.
+EOM
+rp='Build Perl for SOCKS?'
+. ./myread
+case "$ans" in
+y|Y)	val="$define" ;;     
+*)      val="$undef" ;;
+esac
+set usesocks
+eval $setvar
+
+case "$usesocks" in
+$define|true|[yY]*) useperlio="$define";;
+esac
+
+case "$useperlio" in
+$define|true|[yY]*|'')	dflt='y';;
+*) dflt='n';;
+esac
+cat <<EOM
+
+Previous version of $package used the standard IO mechanisms as
+defined in <stdio.h>.  Versions 5.003_02 and later of $package allow
+alternate IO mechanisms via the PerlIO abstraction layer, but the
+stdio mechanism is still available if needed.  The abstraction layer
+can use AT&T's sfio (if you already have sfio installed) or regular stdio.
+Using PerlIO with sfio may cause problems with some extension modules.
+
+If this doesn't make any sense to you, just accept the default '$dflt'.
+EOM
+rp='Use the PerlIO abstraction layer?'
+. ./myread
+case "$ans" in
+y|Y) 
+	val="$define"
+	;;
+*)      
+	echo "Ok, doing things the stdio way."
+	val="$undef"
+	;;
+esac
+set useperlio
+eval $setvar 
+
+case "$usesocks" in
+$define|true|[yY]*)
+	case "$useperlio" in
+	$define|true|[yY]*) ;;
+	*)	cat >&4 <<EOM
+
+You are using the SOCKS proxy protocol library which means that you
+should also use the PerlIO layer.  You may be headed for trouble.
+
+EOM
+		;;
+	esac
+	;;
+esac
+
+	
 case "$usethreads" in
 $define|true|[yY]*)     dflt='y';;
-*) dflt='n';;
+*)     # Catch case where user specified ithreads or 5005threads but
+       # forgot -Dusethreads (A.D. 4/2002)
+       case "$useithreads$use5005threads" in
+       *$define*)      
+		case "$useperlio" in
+		"$define")	dflt='y' ;;
+		*)		dflt='n' ;;
+		esac
+		;;
+       *)	dflt='n';;
+       esac
+       ;;
 esac
 cat <<EOM
 
 Perl can be built to take advantage of threads on some systems.
 To do so, Configure can be run with -Dusethreads.
 
-Note that threading is a highly experimental feature, and
-some known race conditions still remain.  If you choose to try
-it, be very sure to not actually deploy it for production
-purposes.  README.threads has more details, and is required
-reading if you enable threads.
+Note that Perl built with threading support runs slightly slower
+and uses more memory than plain Perl. The current implementation
+is believed to be stable, but it is fairly new, and so should be
+treated with caution.
 
 If this doesn't make any sense to you, just accept the default '$dflt'.
 EOM
@@ -3440,16 +3540,14 @@ case "$usethreads" in
 $define)
 	$cat <<EOM
 
-As of 5.5.640, Perl has two different internal threading implementations,
-the 5.005 version (5005threads) and an interpreter-based version
-(ithreads) that has one interpreter per thread.  Both are very 
-experimental.  This arrangement exists to help developers work out
-which one is better.
+Since release 5.6, Perl has had two different threading implementations,
+the newer interpreter-based version (ithreads) with one interpreter per
+thread, and the older 5.005 version (5005threads).
+The 5005threads version is effectively unmaintained and will probably be
+removed in Perl 5.10, so there should be no need to build a Perl using it
+unless needed for backwards compatibility with some existing 5.005threads
+code.
 
-If you're a casual user, you probably don't want interpreter-threads
-at this time.  But if you do, the 'threads' module allows their use,
-and the 'Thread' module offers an interface to both 5005threads and
-ithreads (whichever has been configured).
 EOM
 	: Default to ithreads unless overridden on command line or with
 	: old config.sh
@@ -3460,7 +3558,7 @@ EOM
 	case "$useithreads" in
 		$undef|false|[nN]*) dflt='n';;
 	esac
-	rp='Use interpreter-based ithreads?'
+	rp='Use the newer interpreter-based ithreads?'
 	. ./myread
 	case "$ans" in
 	y|Y)    val="$define" ;;
@@ -3495,6 +3593,16 @@ EOM
 	;;
 esac
 
+if test X"$usethreads" = "X$define" -a "X$useperlio" = "Xundef"; then
+	cat >&4 <<EOF
+***
+*** To build with ithreads you must also use the PerlIO layer.
+*** Cannot continue, aborting.
+***
+EOF
+	exit 1
+fi
+
 case "$d_oldpthreads" in
 '')	: Configure tests would be welcome here.  For now, assume undef.
 	val="$undef" ;;
@@ -3748,6 +3856,20 @@ case "$ccname" in
 '') ccname="$cc" ;;
 esac
 
+# gcc 3.* complain about adding -Idirectories that they already know about,
+# so we will take those off from locincpth.
+case "$gccversion" in
+3*)
+    echo "main(){}">try.c
+    for incdir in $locincpth; do
+       warn=`$cc $ccflags -I$incdir -c try.c 2>&1 | \
+	     grep '^cc1: warning: changing search order '`
+       if test "X$warn" != X; then
+	   locincpth=`echo " $locincpth " | sed "s! $incdir ! !"`
+       fi
+    done
+    $rm -f try try.*
+esac
 
 : decide how portable to be.  Allow command line overrides.
 case "$d_portable" in
@@ -3815,7 +3937,9 @@ esac
 
 case "$fn" in
 *\(*)
-	expr $fn : '.*(\(.*\)).*' | $tr ',' $trnl >getfile.ok
+	: getfile will accept an answer from the comma-separated list
+	: enclosed in parentheses even if it does not meet other criteria.
+	expr "$fn" : '.*(\(.*\)).*' | $tr ',' $trnl >getfile.ok
 	fn=`echo $fn | sed 's/(.*)//'`
 	;;
 esac
@@ -4333,31 +4457,6 @@ case "$firstmakefile" in
 '') firstmakefile='makefile';;
 esac
 
-case "$usesocks" in
-$define|true|[yY]*)	dflt='y';;
-*) dflt='n';;
-esac
-cat <<EOM
-
-Perl can be built to use the SOCKS proxy protocol library.  To do so,
-Configure must be run with -Dusesocks.  If you use SOCKS you also need
-to use the PerlIO abstraction layer, this will be implicitly selected.
-
-If this doesn't make any sense to you, just accept the default '$dflt'.
-EOM
-rp='Build Perl for SOCKS?'
-. ./myread
-case "$ans" in
-y|Y)	val="$define" ;;     
-*)      val="$undef" ;;
-esac
-set usesocks
-eval $setvar
-
-case "$usesocks" in
-$define|true|[yY]*) useperlio="$define";;
-esac
-
 : Looking for optional libraries
 echo " "
 echo "Checking for optional libraries..." >&4
@@ -4835,131 +4934,6 @@ EOM
 esac
 $rm -f try try.*
 
-: check for void type
-echo " "
-echo "Checking to see how well your C compiler groks the void type..." >&4
-case "$voidflags" in
-'')
-	$cat >try.c <<'EOCP'
-#if TRY & 1
-void sub() {
-#else
-sub() {
-#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);
-}
-int main() { sub(); }
-EOCP
-	if $cc $ccflags -c -DTRY=$defvoidused try.c >.out 2>&1 ; then
-		voidflags=$defvoidused
-	echo "Good.  It appears to support void to the level $package wants.">&4
-		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 $ccflags -c -DTRY=1 try.c >/dev/null 2>&1; then
-			echo "It supports 1..."
-			if $cc $ccflags -c -DTRY=3 try.c >/dev/null 2>&1; then
-				echo "It also supports 2..."
-				if $cc $ccflags -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 $ccflags -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 $ccflags -c -DTRY=13 try.c >/dev/null 2>&1; then
-					voidflags=13
-					echo "But it supports 4 and 8."
-				else
-					if $cc $ccflags -c -DTRY=5 try.c >/dev/null 2>&1; then
-						voidflags=5
-						echo "And it supports 4 but has not heard about 8."
-					else
-						echo "However it supports 8 but not 4."
-					fi
-				fi
-			fi
-		else
-			echo "There is no support at all for void."
-			voidflags=0
-		fi
-	fi
-esac
-case "$voidflags" in
-"$defvoidused") ;;
-*)	$cat >&4 <<'EOM'
-  Support flag bits are:
-    1: basic void declarations.
-    2: arrays of pointers to functions returning void.
-    4: operations between pointers to and addresses of void functions.
-    8: generic void pointers.
-EOM
-	dflt="$voidflags";
-	rp="Your void support flags add up to what?"
-	. ./myread
-	voidflags="$ans"
-	;;
-esac
-$rm -f try.* .out
-
-: check for length of pointer
-echo " "
-case "$ptrsize" in
-'')
-	echo "Checking to see how big your pointers are..." >&4
-	if test "$voidflags" -gt 7; then
-		echo '#define VOID_PTR char *' > try.c
-	else
-		echo '#define VOID_PTR void *' > try.c
-	fi
-	$cat >>try.c <<'EOCP'
-#include <stdio.h>
-int main()
-{
-    printf("%d\n", (int)sizeof(VOID_PTR));
-    exit(0);
-}
-EOCP
-	set try
-	if eval $compile_ok; then
-		ptrsize=`$run ./try`
-		echo "Your pointers are $ptrsize bytes long."
-	else
-		dflt='4'
-		echo "(I can't seem to compile the test program.  Guessing...)" >&4
-		rp="What is the size of a pointer (in bytes)?"
-		. ./myread
-		ptrsize="$ans"
-	fi
-	;;
-esac
-$rm -f try.c try
-
 : check for long long
 echo " "
 echo "Checking to see if you have long long..." >&4
@@ -5359,32 +5333,7 @@ EOM
 	;;
 esac
 
-case "$use64bitall" in
-"$define"|true|[yY]*)
-	case "$ptrsize" in
-	4)	cat <<EOM >&4
-
-*** You have chosen a maximally 64-bit build, but your pointers
-*** are only 4 bytes wide, disabling maximal 64-bitness.
-
-EOM
-		use64bitall="$undef"
-		case "$use64bitint" in
-		"$define"|true|[yY]*) ;;
-		*)	cat <<EOM >&4
-
-*** Downgrading from maximal 64-bitness to using 64-bit integers.
-
-EOM
-			use64bitint="$define"
-			;;
-		esac
-		;;
-	esac
-	;;
-esac
-
-case "$use64bitint" in
+case "$use64bitint" in
 "$define"|true|[yY]*)
 : Look for a hint-file generated 'call-back-unit'.  If the
 : user has specified that a 64-bit perl is to be built,
@@ -5422,26 +5371,43 @@ esac
 
 echo " "
 echo "Checking for GNU C Library..." >&4
-cat >try.c <<EOM
+cat >try.c <<'EOCP'
+/* Find out version of GNU C library.  __GLIBC__ and __GLIBC_MINOR__
+   alone are insufficient to distinguish different versions, such as
+   2.0.6 and 2.0.7.  The function gnu_get_libc_version() appeared in
+   libc version 2.1.0.      A. Dougherty,  June 3, 2002.
+*/
 #include <stdio.h>
-int main()
+int main(void)
 {
 #ifdef __GLIBC__
-    exit(0);
+#   ifdef __GLIBC_MINOR__
+#       if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
+#           include <gnu/libc-version.h>
+	    printf("%s\n",  gnu_get_libc_version());
+#       else
+	    printf("%d.%d\n",  __GLIBC__, __GLIBC_MINOR__);
+#       endif
+#   else
+	printf("%d\n",  __GLIBC__);
+#   endif
+    return 0;
 #else
-    exit(1);
+    return 1;
 #endif
 }
-EOM
+EOCP
 set try
-if eval $compile_ok && $run ./try; then
+if eval $compile_ok && $run ./try > glibc.ver; then
 	val="$define"
-	echo "You are using the GNU C Library"
+	gnulibc_version=`$cat glibc.ver`
+	echo "You are using the GNU C Library version $gnulibc_version"
 else
 	val="$undef"
+	gnulibc_version=''
 	echo "You are not using the GNU C Library"
 fi
-$rm -f try try.*
+$rm -f try try.* glibc.ver
 set d_gnulibc
 eval $setvar
 
@@ -5458,7 +5424,7 @@ case "$usenm" in
 	esac
 	case "$dflt" in
 	'') 
-		if $test "$osname" = aix -a ! -f /lib/syscalls.exp; then
+		if $test "$osname" = aix -a "X$PASE" != "Xdefine" -a ! -f /lib/syscalls.exp; then
 			echo " "
 			echo "Whoops!  This is an AIX system without /lib/syscalls.exp!" >&4
 			echo "'nm' won't be sufficient on this sytem." >&4
@@ -5694,7 +5660,7 @@ 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'
+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 $xscan;\
@@ -5805,11 +5771,19 @@ else
 	fi
 fi
 nm_extract="$com"
-if $test -f /lib/syscalls.exp; then
+case "$PASE" in
+define)
+    echo " "
+    echo "Since you are compiling for PASE, extracting more symbols from libc.a ...">&4
+    dump -Tv /lib/libc.a | awk '$7 == "/unix" {print $5 " " $8}' | grep "^SV" | awk '{print $2}' >> libc.list
+    ;;
+*)  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[0-9]*[ 	]*$/\1/p' /lib/syscalls.exp >>libc.list
-fi
+    fi
+    ;;
+esac
 ;;
 esac
 $rm -f libnames libpath
@@ -5881,6 +5855,25 @@ esac'
 set sqrtl d_sqrtl
 eval $inlibc
 
+hasproto='varname=$1; func=$2; shift; shift;
+while $test $# -ge 2; do
+	case "$1" in
+	$define) echo "#include <$2>";;
+	esac ;
+    shift 2;
+done > try.c;
+$cppstdin $cppflags $cppminus < try.c > tryout.c 2>/dev/null;
+if $contains "$func.*(" tryout.c >/dev/null 2>&1; then
+	echo "$func() prototype found.";
+	val="$define";
+else
+	echo "$func() prototype NOT found.";
+	val="$undef";
+fi;
+set $varname;
+eval $setvar;
+$rm -f try.c tryout.c'
+
 : check for length of double
 echo " "
 case "$doublesize" in
@@ -6076,6 +6069,11 @@ esac
 set modfl d_modfl
 eval $inlibc
 
+: see if prototype for modfl is available
+echo " "
+set d_modflproto modfl math.h
+eval $hasproto
+
 d_modfl_pow32_bug="$undef"
 
 case "$d_longdbl$d_modfl" in
@@ -6086,6 +6084,14 @@ EOM
 $cat >try.c <<EOCP
 #include <math.h> 
 #include <stdio.h>
+EOCP
+if $test "X$d_modflproto" != "X$define"; then
+	$cat >>try.c <<EOCP
+/* Sigh. many current glibcs provide the function, but do not prototype it.  */ 
+long double modfl (long double, long double *);
+EOCP
+fi
+$cat >>try.c <<EOCP
 int main() {
     long double nv = 4294967303.15;
     long double v, w;
@@ -6204,51 +6210,6 @@ EOM
 	uselongdouble=$undef
 fi
 
-case "$useperlio" in
-$define|true|[yY]*|'')	dflt='y';;
-*) dflt='n';;
-esac
-cat <<EOM
-
-Previous version of $package used the standard IO mechanisms as
-defined in <stdio.h>.  Versions 5.003_02 and later of $package allow
-alternate IO mechanisms via the PerlIO abstraction layer, but the
-stdio mechanism is still available if needed.  The abstraction layer
-can use AT&T's sfio (if you already have sfio installed) or regular stdio.
-Using PerlIO with sfio may cause problems with some extension modules.
-
-If this doesn't make any sense to you, just accept the default '$dflt'.
-EOM
-rp='Use the PerlIO abstraction layer?'
-. ./myread
-case "$ans" in
-y|Y) 
-	val="$define"
-	;;
-*)      
-	echo "Ok, doing things the stdio way."
-	val="$undef"
-	;;
-esac
-set useperlio
-eval $setvar 
-
-case "$usesocks" in
-$define|true|[yY]*)
-	case "$useperlio" in
-	$define|true|[yY]*) ;;
-	*)	cat >&4 <<EOM
-
-You are using the SOCKS proxy protocol library which means that you
-should also use the PerlIO layer.  You may be headed for trouble.
-
-EOM
-		;;
-	esac
-	;;
-esac
-
-	
 : determine the architecture name
 echo " "
 if xxx=`./loc arch blurfl $pth`; $test -f "$xxx"; then
@@ -6370,6 +6331,9 @@ case "$prefix" in
 '')
 	dflt=`./loc . /usr/local /usr/local /local /opt /usr`
 	;;
+*?/)
+	dflt=`echo "$prefix" | sed 's/.$//'`
+	;;
 *)
 	dflt="$prefix"
 	;;
@@ -6628,162 +6592,273 @@ else
 	installarchlib="$archlibexp"
 fi
 
+: see if setuid scripts can be secure
+$cat <<EOM
 
-: Binary compatibility with 5.005 is not possible for builds
-: with advanced features
-case "$usethreads$usemultiplicity" in
-*define*)
-	bincompat5005="$undef"
-	d_bincompat5005="$undef"
-	;;
-*)	$cat <<EOM
+Some kernels have a bug that prevents setuid #! scripts from being
+secure.  Some sites have disabled setuid #! scripts because of this.
 
-This version of Perl can be compiled for binary compatibility with 5.005.
-If you decide to do so, you will be able to continue using most of the
-extensions that were compiled for Perl 5.005.
+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
-	case "$bincompat5005$d_bincompat5005" in
-	*"$undef"*) dflt=n ;;
-	*) dflt=y ;;
+		rp='Other username to test security of setuid scripts with?'
+		dflt='none'
+		. ./myread
+		case "$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
+	echo "(That's for file descriptors, not floppy disks.)"
+	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
+	"$define") dflt=y ;;
+	*) dflt=n ;;
 	esac
-	rp='Binary compatibility with Perl 5.005?'
+	rp="Do you want to do setuid/setgid emulation?"
 	. ./myread
 	case "$ans" in
-	y*) val="$define" ;;
-	*)  val="$undef" ;;
-	esac
-	set d_bincompat5005
-	eval $setvar
-	case "$d_bincompat5005" in
-	"$define")
-		bincompat5005="$define"
-		;;
-	*)	bincompat5005="$undef"
-		d_bincompat5005="$undef"
-		;;
+	[yY]*)	val="$define";;
+	*)	val="$undef";;
 	esac
 	;;
 esac
+set d_dosuid
+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 $inhdr
+
+: check for void type
+echo " "
+echo "Checking to see how well your C compiler groks the void type..." >&4
+case "$voidflags" in
+'')
+	$cat >try.c <<'EOCP'
+#if TRY & 1
+void sub() {
+#else
+sub() {
+#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);
+}
+int main() { sub(); }
+EOCP
+	if $cc $ccflags -c -DTRY=$defvoidused try.c >.out 2>&1 ; then
+		voidflags=$defvoidused
+	echo "Good.  It appears to support void to the level $package wants.">&4
+		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 $ccflags -c -DTRY=1 try.c >/dev/null 2>&1; then
+			echo "It supports 1..."
+			if $cc $ccflags -c -DTRY=3 try.c >/dev/null 2>&1; then
+				echo "It also supports 2..."
+				if $cc $ccflags -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 $ccflags -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 $ccflags -c -DTRY=13 try.c >/dev/null 2>&1; then
+					voidflags=13
+					echo "But it supports 4 and 8."
+				else
+					if $cc $ccflags -c -DTRY=5 try.c >/dev/null 2>&1; then
+						voidflags=5
+						echo "And it supports 4 but has not heard about 8."
+					else
+						echo "However it supports 8 but not 4."
+					fi
+				fi
+			fi
+		else
+			echo "There is no support at all for void."
+			voidflags=0
+		fi
+	fi
+esac
+case "$voidflags" in
+"$defvoidused") ;;
+*)	$cat >&4 <<'EOM'
+  Support flag bits are:
+    1: basic void declarations.
+    2: arrays of pointers to functions returning void.
+    4: operations between pointers to and addresses of void functions.
+    8: generic void pointers.
+EOM
+	dflt="$voidflags";
+	rp="Your void support flags add up to what?"
+	. ./myread
+	voidflags="$ans"
+	;;
+esac
+$rm -f try.* .out
+
+: check for length of pointer
+echo " "
+case "$ptrsize" in
+'')
+	echo "Checking to see how big your pointers are..." >&4
+	if test "$voidflags" -gt 7; then
+		echo '#define VOID_PTR char *' > try.c
+	else
+		echo '#define VOID_PTR void *' > try.c
+	fi
+	$cat >>try.c <<'EOCP'
+#include <stdio.h>
+int main()
+{
+    printf("%d\n", (int)sizeof(VOID_PTR));
+    exit(0);
+}
+EOCP
+	set try
+	if eval $compile_ok; then
+		ptrsize=`$run ./try`
+		echo "Your pointers are $ptrsize bytes long."
+	else
+		dflt='4'
+		echo "(I can't seem to compile the test program.  Guessing...)" >&4
+		rp="What is the size of a pointer (in bytes)?"
+		. ./myread
+		ptrsize="$ans"
+	fi
+	;;
+esac
+$rm -f try.c try
+case "$use64bitall" in
+"$define"|true|[yY]*)
+	case "$ptrsize" in
+	4)	cat <<EOM >&4
 
-
-: 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.)
+*** You have chosen a maximally 64-bit build, but your pointers
+*** are only 4 bytes wide, disabling maximal 64-bitness.
 
 EOM
+		use64bitall="$undef"
+		case "$use64bitint" in
+		"$define"|true|[yY]*) ;;
+		*)	cat <<EOM >&4
 
-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'.
+*** Downgrading from maximal 64-bitness to using 64-bit integers.
 
 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 $contains "/dev/fd" flect >/dev/null; then
-				echo "Okay, it looks like setuid scripts are secure." >&4
-				dflt=y
-			else
-				echo "I don't think setuid scripts are secure." >&4
-				dflt=n
-			fi
+			use64bitint="$define"
 			;;
 		esac
-		rp='Does your kernel have *secure* setuid scripts?'
-		. ./myread
-		case "$ans" in
-		[yY]*)	val="$define";;
-		*)	val="$undef";;
-		esac
-	fi
-else
-	echo "I don't think setuid scripts are secure (no /dev/fd directory)." >&4
-	echo "(That's for file descriptors, not floppy disks.)"
-	val="$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
-
-: 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 " "
@@ -7323,13 +7398,9 @@ case "$dflt" in
 ''|' ') dflt=none ;;
 esac
 case "$dflt" in
-5.005) case "$bincompat5005" in
-       $define|true|[yY]*) ;;
-       *) dflt=none ;;
-       esac
-       ;;
+5.005) dflt=none ;;
 esac
-$cat <<'EOM'
+$cat <<EOM
 
 In order to ease the process of upgrading, this version of perl 
 can be configured to use modules built and installed with earlier 
@@ -7364,13 +7435,33 @@ echo " "
 if $test -d /usr/bin -a "X$installbin" != X/usr/bin; then
 	$cat <<EOM
 Many scripts expect perl to be installed as /usr/bin/perl.
-I can install the perl you are about to compile also as /usr/bin/perl
-(in addition to $installbin/perl).
+
+If you want to, I can install the perl you are about to compile
+as /usr/bin/perl (in addition to $bin/perl).
 EOM
-	case "$installusrbinperl" in
-	"$undef"|[nN]*)	dflt='n';;
-	*)		dflt='y';;
-	esac
+	if test -f /usr/bin/perl; then
+	    $cat <<EOM
+
+However, please note that because you already have a /usr/bin/perl,
+overwriting that with a new Perl would very probably cause problems.
+Therefore I'm assuming you don't want to do that (unless you insist).
+
+EOM
+	    case "$installusrbinperl" in
+	    "$define"|[yY]*)	dflt='y';;
+	    *)			dflt='n';;
+	    esac
+	else
+	    $cat <<EOM
+
+Since you don't have a /usr/bin/perl I'm assuming creating one is okay.
+
+EOM
+	    case "$installusrbinperl" in
+	    "$undef"|[nN]*)	dflt='n';;
+	    *)			dflt='y';;
+	    esac
+	fi
 	rp="Do you want to install perl as /usr/bin/perl?"
 	. ./myread
 	case "$ans" in
@@ -8382,6 +8473,12 @@ esac
 set versiononly
 eval $setvar
 
+case "$versiononly" in
+"$define") inc_version_list=''
+           inc_version_list_init=0
+           ;;
+esac
+
 : figure out how to guarantee perl startup
 case "$startperl" in
 '')
@@ -9070,6 +9167,10 @@ eval $inlibc
 set alarm d_alarm
 eval $inlibc
 
+: see if POSIX threads are available
+set pthread.h i_pthread
+eval $inhdr
+
 : define a fucntion to check prototypes
 $cat > protochk <<EOSH
 $startsh
@@ -9079,6 +9180,9 @@ ccflags="$ccflags"
 prototype="$prototype"
 define="$define"
 rm=$rm
+usethreads=$usethreads
+i_pthread=$i_pthread
+pthread_h_first=$pthread_h_first
 EOSH
 
 $cat >> protochk <<'EOSH'
@@ -9091,6 +9195,14 @@ while test $# -ge 2; do
 		$define) echo "#include <$2>" >> try.c ;;
 		literal) echo "$2" >> try.c ;;
 	esac
+    # Extra magic for the benefit of systems that need pthread.h
+    # to be included early to correctly detect threadsafe functions.
+    # Such functions must guarantee themselves, though, that the usethreads
+    # and i_pthread have been defined, before calling protochk.
+    if test "$usethreads" = "$define" -a "$i_pthread" = "$define" -a "$pthread_h_first" = "$define" -a "$pthread_h_done" = ""; then
+	echo "#include <pthread.h>" >> try.c
+	pthread_h_done=yes
+    fi
     shift 2
 done
 test "$prototype" = "$define"  && echo '#define CAN_PROTOTYPE' >> try.c
@@ -9111,25 +9223,6 @@ EOSH
 chmod +x protochk
 $eunicefix protochk
 
-hasproto='varname=$1; func=$2; shift; shift;
-while $test $# -ge 2; do
-	case "$1" in
-	$define) echo "#include <$2>";;
-	esac ;
-    shift 2;
-done > try.c;
-$cppstdin $cppflags $cppminus < try.c > tryout.c 2>/dev/null;
-if $contains "$func.*(" tryout.c >/dev/null 2>&1; then
-	echo "$func() prototype found.";
-	val="$define";
-else
-	echo "$func() prototype NOT found.";
-	val="$undef";
-fi;
-set $varname;
-eval $setvar;
-$rm -f try.c tryout.c'
-
 : see if sys/types.h has to be included
 set sys/types.h i_systypes
 eval $inhdr
@@ -9279,7 +9372,7 @@ set asctime_r d_asctime_r
 eval $inlibc
 case "$d_asctime_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h"
+	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h $i_systime sys/time.h"
 	case "$d_asctime_r_proto:$usethreads" in
 	":define")	d_asctime_r_proto=define
 		set d_asctime_r_proto asctime_r $hdrs
@@ -9305,7 +9398,7 @@ case "$d_asctime_r" in
 	./protochk "extern $try" $hdrs && asctime_r_proto=I_SBI ;;
 	esac
 	case "$asctime_r_proto" in
-	'')	d_asctime_r=undef
+	''|0)	d_asctime_r=undef
  	        asctime_r_proto=0
 		echo "Disabling asctime_r, cannot determine prototype." >&4 ;;
 	* )	case "$asctime_r_proto" in
@@ -9318,6 +9411,8 @@ case "$d_asctime_r" in
 	*)	case "$usethreads" in
 		define) echo "asctime_r has no prototype, not using it." >&4 ;;
 		esac
+		d_asctime_r=undef
+		asctime_r_proto=0
 		;;
 	esac
 	;;
@@ -9871,7 +9966,7 @@ echo " "
 echo 'Checking to see if your C compiler knows about "const"...' >&4
 $cat >const.c <<'EOCP'
 typedef struct spug { int drokk; } spug;
-int main()
+main()
 {
 	const char *foo;
 	const spug y;
@@ -9949,7 +10044,11 @@ case "$d_crypt_r" in
 	./protochk "extern $try" $hdrs && crypt_r_proto=B_CCS ;;
 	esac
 	case "$crypt_r_proto" in
-	'')	d_crypt_r=undef
+	''|0) try='char* crypt_r(const char*, const char*, CRYPTD*);'
+	./protochk "extern $try" $hdrs && crypt_r_proto=B_CCD ;;
+	esac
+	case "$crypt_r_proto" in
+	''|0)	d_crypt_r=undef
  	        crypt_r_proto=0
 		echo "Disabling crypt_r, cannot determine prototype." >&4 ;;
 	* )	case "$crypt_r_proto" in
@@ -9962,6 +10061,8 @@ case "$d_crypt_r" in
 	*)	case "$usethreads" in
 		define) echo "crypt_r has no prototype, not using it." >&4 ;;
 		esac
+		d_crypt_r=undef
+		crypt_r_proto=0
 		;;
 	esac
 	;;
@@ -9986,7 +10087,7 @@ set ctermid_r d_ctermid_r
 eval $inlibc
 case "$d_ctermid_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_stdio stdio.h"
+	hdrs="$i_systypes sys/types.h define stdio.h "
 	case "$d_ctermid_r_proto:$usethreads" in
 	":define")	d_ctermid_r_proto=define
 		set d_ctermid_r_proto ctermid_r $hdrs
@@ -10000,7 +10101,7 @@ case "$d_ctermid_r" in
 	./protochk "extern $try" $hdrs && ctermid_r_proto=B_B ;;
 	esac
 	case "$ctermid_r_proto" in
-	'')	d_ctermid_r=undef
+	''|0)	d_ctermid_r=undef
  	        ctermid_r_proto=0
 		echo "Disabling ctermid_r, cannot determine prototype." >&4 ;;
 	* )	case "$ctermid_r_proto" in
@@ -10013,6 +10114,8 @@ case "$d_ctermid_r" in
 	*)	case "$usethreads" in
 		define) echo "ctermid_r has no prototype, not using it." >&4 ;;
 		esac
+		d_ctermid_r=undef
+		ctermid_r_proto=0
 		;;
 	esac
 	;;
@@ -10025,7 +10128,7 @@ set ctime_r d_ctime_r
 eval $inlibc
 case "$d_ctime_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h"
+	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h $i_systime sys/time.h"
 	case "$d_ctime_r_proto:$usethreads" in
 	":define")	d_ctime_r_proto=define
 		set d_ctime_r_proto ctime_r $hdrs
@@ -10051,7 +10154,7 @@ case "$d_ctime_r" in
 	./protochk "extern $try" $hdrs && ctime_r_proto=I_SBI ;;
 	esac
 	case "$ctime_r_proto" in
-	'')	d_ctime_r=undef
+	''|0)	d_ctime_r=undef
  	        ctime_r_proto=0
 		echo "Disabling ctime_r, cannot determine prototype." >&4 ;;
 	* )	case "$ctime_r_proto" in
@@ -10064,6 +10167,8 @@ case "$d_ctime_r" in
 	*)	case "$usethreads" in
 		define) echo "ctime_r has no prototype, not using it." >&4 ;;
 		esac
+		d_ctime_r=undef
+		ctime_r_proto=0
 		;;
 	esac
 	;;
@@ -10410,7 +10515,7 @@ case "$d_drand48_r" in
 	./protochk "extern $try" $hdrs && drand48_r_proto=I_ST ;;
 	esac
 	case "$drand48_r_proto" in
-	'')	d_drand48_r=undef
+	''|0)	d_drand48_r=undef
  	        drand48_r_proto=0
 		echo "Disabling drand48_r, cannot determine prototype." >&4 ;;
 	* )	case "$drand48_r_proto" in
@@ -10423,6 +10528,8 @@ case "$d_drand48_r" in
 	*)	case "$usethreads" in
 		define) echo "drand48_r has no prototype, not using it." >&4 ;;
 		esac
+		d_drand48_r=undef
+		drand48_r_proto=0
 		;;
 	esac
 	;;
@@ -10495,7 +10602,7 @@ case "$d_endgrent_r" in
 	./protochk "extern $try" $hdrs && endgrent_r_proto=V_H ;;
 	esac
 	case "$endgrent_r_proto" in
-	'')	d_endgrent_r=undef
+	''|0)	d_endgrent_r=undef
  	        endgrent_r_proto=0
 		echo "Disabling endgrent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endgrent_r_proto" in
@@ -10508,6 +10615,8 @@ case "$d_endgrent_r" in
 	*)	case "$usethreads" in
 		define) echo "endgrent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endgrent_r=undef
+		endgrent_r_proto=0
 		;;
 	esac
 	;;
@@ -10539,14 +10648,14 @@ case "$d_endhostent_r" in
 	define)
 	case "$endhostent_r_proto" in
 	''|0) try='int endhostent_r(struct hostent_data*);'
-	./protochk "extern $try" $hdrs && endhostent_r_proto=I_S ;;
+	./protochk "extern $try" $hdrs && endhostent_r_proto=I_D ;;
 	esac
 	case "$endhostent_r_proto" in
 	''|0) try='void endhostent_r(struct hostent_data*);'
-	./protochk "extern $try" $hdrs && endhostent_r_proto=V_S ;;
+	./protochk "extern $try" $hdrs && endhostent_r_proto=V_D ;;
 	esac
 	case "$endhostent_r_proto" in
-	'')	d_endhostent_r=undef
+	''|0)	d_endhostent_r=undef
  	        endhostent_r_proto=0
 		echo "Disabling endhostent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endhostent_r_proto" in
@@ -10559,6 +10668,8 @@ case "$d_endhostent_r" in
 	*)	case "$usethreads" in
 		define) echo "endhostent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endhostent_r=undef
+		endhostent_r_proto=0
 		;;
 	esac
 	;;
@@ -10586,14 +10697,14 @@ case "$d_endnetent_r" in
 	define)
 	case "$endnetent_r_proto" in
 	''|0) try='int endnetent_r(struct netent_data*);'
-	./protochk "extern $try" $hdrs && endnetent_r_proto=I_S ;;
+	./protochk "extern $try" $hdrs && endnetent_r_proto=I_D ;;
 	esac
 	case "$endnetent_r_proto" in
 	''|0) try='void endnetent_r(struct netent_data*);'
-	./protochk "extern $try" $hdrs && endnetent_r_proto=V_S ;;
+	./protochk "extern $try" $hdrs && endnetent_r_proto=V_D ;;
 	esac
 	case "$endnetent_r_proto" in
-	'')	d_endnetent_r=undef
+	''|0)	d_endnetent_r=undef
  	        endnetent_r_proto=0
 		echo "Disabling endnetent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endnetent_r_proto" in
@@ -10606,6 +10717,8 @@ case "$d_endnetent_r" in
 	*)	case "$usethreads" in
 		define) echo "endnetent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endnetent_r=undef
+		endnetent_r_proto=0
 		;;
 	esac
 	;;
@@ -10633,14 +10746,14 @@ case "$d_endprotoent_r" in
 	define)
 	case "$endprotoent_r_proto" in
 	''|0) try='int endprotoent_r(struct protoent_data*);'
-	./protochk "extern $try" $hdrs && endprotoent_r_proto=I_S ;;
+	./protochk "extern $try" $hdrs && endprotoent_r_proto=I_D ;;
 	esac
 	case "$endprotoent_r_proto" in
 	''|0) try='void endprotoent_r(struct protoent_data*);'
-	./protochk "extern $try" $hdrs && endprotoent_r_proto=V_S ;;
+	./protochk "extern $try" $hdrs && endprotoent_r_proto=V_D ;;
 	esac
 	case "$endprotoent_r_proto" in
-	'')	d_endprotoent_r=undef
+	''|0)	d_endprotoent_r=undef
  	        endprotoent_r_proto=0
 		echo "Disabling endprotoent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endprotoent_r_proto" in
@@ -10653,6 +10766,8 @@ case "$d_endprotoent_r" in
 	*)	case "$usethreads" in
 		define) echo "endprotoent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endprotoent_r=undef
+		endprotoent_r_proto=0
 		;;
 	esac
 	;;
@@ -10775,7 +10890,7 @@ case "$d_endpwent_r" in
 	./protochk "extern $try" $hdrs && endpwent_r_proto=V_H ;;
 	esac
 	case "$endpwent_r_proto" in
-	'')	d_endpwent_r=undef
+	''|0)	d_endpwent_r=undef
  	        endpwent_r_proto=0
 		echo "Disabling endpwent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endpwent_r_proto" in
@@ -10788,6 +10903,8 @@ case "$d_endpwent_r" in
 	*)	case "$usethreads" in
 		define) echo "endpwent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endpwent_r=undef
+		endpwent_r_proto=0
 		;;
 	esac
 	;;
@@ -10815,14 +10932,14 @@ case "$d_endservent_r" in
 	define)
 	case "$endservent_r_proto" in
 	''|0) try='int endservent_r(struct servent_data*);'
-	./protochk "extern $try" $hdrs && endservent_r_proto=I_S ;;
+	./protochk "extern $try" $hdrs && endservent_r_proto=I_D ;;
 	esac
 	case "$endservent_r_proto" in
 	''|0) try='void endservent_r(struct servent_data*);'
-	./protochk "extern $try" $hdrs && endservent_r_proto=V_S ;;
+	./protochk "extern $try" $hdrs && endservent_r_proto=V_D ;;
 	esac
 	case "$endservent_r_proto" in
-	'')	d_endservent_r=undef
+	''|0)	d_endservent_r=undef
  	        endservent_r_proto=0
 		echo "Disabling endservent_r, cannot determine prototype." >&4 ;;
 	* )	case "$endservent_r_proto" in
@@ -10835,6 +10952,8 @@ case "$d_endservent_r" in
 	*)	case "$usethreads" in
 		define) echo "endservent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_endservent_r=undef
+		endservent_r_proto=0
 		;;
 	esac
 	;;
@@ -11512,7 +11631,7 @@ case "$d_getgrent_r" in
 	./protochk "extern $try" $hdrs && getgrent_r_proto=I_SBIH ;;
 	esac
 	case "$getgrent_r_proto" in
-	'')	d_getgrent_r=undef
+	''|0)	d_getgrent_r=undef
  	        getgrent_r_proto=0
 		echo "Disabling getgrent_r, cannot determine prototype." >&4 ;;
 	* )	case "$getgrent_r_proto" in
@@ -11525,6 +11644,8 @@ case "$d_getgrent_r" in
 	*)	case "$usethreads" in
 		define) echo "getgrent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getgrent_r=undef
+		getgrent_r_proto=0
 		;;
 	esac
 	;;
@@ -11563,7 +11684,7 @@ case "$d_getgrgid_r" in
 	./protochk "extern $try" $hdrs && getgrgid_r_proto=S_TSBI ;;
 	esac
 	case "$getgrgid_r_proto" in
-	'')	d_getgrgid_r=undef
+	''|0)	d_getgrgid_r=undef
  	        getgrgid_r_proto=0
 		echo "Disabling getgrgid_r, cannot determine prototype." >&4 ;;
 	* )	case "$getgrgid_r_proto" in
@@ -11576,6 +11697,8 @@ case "$d_getgrgid_r" in
 	*)	case "$usethreads" in
 		define) echo "getgrgid_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getgrgid_r=undef
+		getgrgid_r_proto=0
 		;;
 	esac
 	;;
@@ -11618,7 +11741,7 @@ case "$d_getgrnam_r" in
 	./protochk "extern $try" $hdrs && getgrnam_r_proto=S_CSBI ;;
 	esac
 	case "$getgrnam_r_proto" in
-	'')	d_getgrnam_r=undef
+	''|0)	d_getgrnam_r=undef
  	        getgrnam_r_proto=0
 		echo "Disabling getgrnam_r, cannot determine prototype." >&4 ;;
 	* )	case "$getgrnam_r_proto" in
@@ -11631,6 +11754,8 @@ case "$d_getgrnam_r" in
 	*)	case "$usethreads" in
 		define) echo "getgrnam_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getgrnam_r=undef
+		getgrnam_r_proto=0
 		;;
 	esac
 	;;
@@ -11790,7 +11915,7 @@ case "$d_gethostbyaddr_r" in
 	./protochk "extern $try" $hdrs && gethostbyaddr_r_proto=I_CII ;;
 	esac
 	case "$gethostbyaddr_r_proto" in
-	'')	d_gethostbyaddr_r=undef
+	''|0)	d_gethostbyaddr_r=undef
  	        gethostbyaddr_r_proto=0
 		echo "Disabling gethostbyaddr_r, cannot determine prototype." >&4 ;;
 	* )	case "$gethostbyaddr_r_proto" in
@@ -11803,6 +11928,8 @@ case "$d_gethostbyaddr_r" in
 	*)	case "$usethreads" in
 		define) echo "gethostbyaddr_r has no prototype, not using it." >&4 ;;
 		esac
+		d_gethostbyaddr_r=undef
+		gethostbyaddr_r_proto=0
 		;;
 	esac
 	;;
@@ -11837,7 +11964,7 @@ case "$d_gethostbyname_r" in
 	./protochk "extern $try" $hdrs && gethostbyname_r_proto=I_CSD ;;
 	esac
 	case "$gethostbyname_r_proto" in
-	'')	d_gethostbyname_r=undef
+	''|0)	d_gethostbyname_r=undef
  	        gethostbyname_r_proto=0
 		echo "Disabling gethostbyname_r, cannot determine prototype." >&4 ;;
 	* )	case "$gethostbyname_r_proto" in
@@ -11850,6 +11977,8 @@ case "$d_gethostbyname_r" in
 	*)	case "$usethreads" in
 		define) echo "gethostbyname_r has no prototype, not using it." >&4 ;;
 		esac
+		d_gethostbyname_r=undef
+		gethostbyname_r_proto=0
 		;;
 	esac
 	;;
@@ -11896,7 +12025,7 @@ case "$d_gethostent_r" in
 	./protochk "extern $try" $hdrs && gethostent_r_proto=I_SD ;;
 	esac
 	case "$gethostent_r_proto" in
-	'')	d_gethostent_r=undef
+	''|0)	d_gethostent_r=undef
  	        gethostent_r_proto=0
 		echo "Disabling gethostent_r, cannot determine prototype." >&4 ;;
 	* )	case "$gethostent_r_proto" in
@@ -11909,6 +12038,8 @@ case "$d_gethostent_r" in
 	*)	case "$usethreads" in
 		define) echo "gethostent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_gethostent_r=undef
+		gethostent_r_proto=0
 		;;
 	esac
 	;;
@@ -11960,7 +12091,7 @@ case "$d_getlogin_r" in
 	./protochk "extern $try" $hdrs && getlogin_r_proto=B_BI ;;
 	esac
 	case "$getlogin_r_proto" in
-	'')	d_getlogin_r=undef
+	''|0)	d_getlogin_r=undef
  	        getlogin_r_proto=0
 		echo "Disabling getlogin_r, cannot determine prototype." >&4 ;;
 	* )	case "$getlogin_r_proto" in
@@ -11973,6 +12104,8 @@ case "$d_getlogin_r" in
 	*)	case "$usethreads" in
 		define) echo "getlogin_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getlogin_r=undef
+		getlogin_r_proto=0
 		;;
 	esac
 	;;
@@ -12043,7 +12176,7 @@ case "$d_getnetbyaddr_r" in
 	./protochk "extern $try" $hdrs && getnetbyaddr_r_proto=I_IISD ;;
 	esac
 	case "$getnetbyaddr_r_proto" in
-	'')	d_getnetbyaddr_r=undef
+	''|0)	d_getnetbyaddr_r=undef
  	        getnetbyaddr_r_proto=0
 		echo "Disabling getnetbyaddr_r, cannot determine prototype." >&4 ;;
 	* )	case "$getnetbyaddr_r_proto" in
@@ -12056,6 +12189,8 @@ case "$d_getnetbyaddr_r" in
 	*)	case "$usethreads" in
 		define) echo "getnetbyaddr_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getnetbyaddr_r=undef
+		getnetbyaddr_r_proto=0
 		;;
 	esac
 	;;
@@ -12094,7 +12229,7 @@ case "$d_getnetbyname_r" in
 	./protochk "extern $try" $hdrs && getnetbyname_r_proto=I_CSD ;;
 	esac
 	case "$getnetbyname_r_proto" in
-	'')	d_getnetbyname_r=undef
+	''|0)	d_getnetbyname_r=undef
  	        getnetbyname_r_proto=0
 		echo "Disabling getnetbyname_r, cannot determine prototype." >&4 ;;
 	* )	case "$getnetbyname_r_proto" in
@@ -12107,6 +12242,8 @@ case "$d_getnetbyname_r" in
 	*)	case "$usethreads" in
 		define) echo "getnetbyname_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getnetbyname_r=undef
+		getnetbyname_r_proto=0
 		;;
 	esac
 	;;
@@ -12153,7 +12290,7 @@ case "$d_getnetent_r" in
 	./protochk "extern $try" $hdrs && getnetent_r_proto=I_SD ;;
 	esac
 	case "$getnetent_r_proto" in
-	'')	d_getnetent_r=undef
+	''|0)	d_getnetent_r=undef
  	        getnetent_r_proto=0
 		echo "Disabling getnetent_r, cannot determine prototype." >&4 ;;
 	* )	case "$getnetent_r_proto" in
@@ -12166,6 +12303,8 @@ case "$d_getnetent_r" in
 	*)	case "$usethreads" in
 		define) echo "getnetent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getnetent_r=undef
+		getnetent_r_proto=0
 		;;
 	esac
 	;;
@@ -12238,7 +12377,7 @@ case "$d_getprotobyname_r" in
 	./protochk "extern $try" $hdrs && getprotobyname_r_proto=I_CSD ;;
 	esac
 	case "$getprotobyname_r_proto" in
-	'')	d_getprotobyname_r=undef
+	''|0)	d_getprotobyname_r=undef
  	        getprotobyname_r_proto=0
 		echo "Disabling getprotobyname_r, cannot determine prototype." >&4 ;;
 	* )	case "$getprotobyname_r_proto" in
@@ -12251,6 +12390,8 @@ case "$d_getprotobyname_r" in
 	*)	case "$usethreads" in
 		define) echo "getprotobyname_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getprotobyname_r=undef
+		getprotobyname_r_proto=0
 		;;
 	esac
 	;;
@@ -12285,7 +12426,7 @@ case "$d_getprotobynumber_r" in
 	./protochk "extern $try" $hdrs && getprotobynumber_r_proto=I_ISD ;;
 	esac
 	case "$getprotobynumber_r_proto" in
-	'')	d_getprotobynumber_r=undef
+	''|0)	d_getprotobynumber_r=undef
  	        getprotobynumber_r_proto=0
 		echo "Disabling getprotobynumber_r, cannot determine prototype." >&4 ;;
 	* )	case "$getprotobynumber_r_proto" in
@@ -12298,6 +12439,8 @@ case "$d_getprotobynumber_r" in
 	*)	case "$usethreads" in
 		define) echo "getprotobynumber_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getprotobynumber_r=undef
+		getprotobynumber_r_proto=0
 		;;
 	esac
 	;;
@@ -12336,7 +12479,7 @@ case "$d_getprotoent_r" in
 	./protochk "extern $try" $hdrs && getprotoent_r_proto=I_SD ;;
 	esac
 	case "$getprotoent_r_proto" in
-	'')	d_getprotoent_r=undef
+	''|0)	d_getprotoent_r=undef
  	        getprotoent_r_proto=0
 		echo "Disabling getprotoent_r, cannot determine prototype." >&4 ;;
 	* )	case "$getprotoent_r_proto" in
@@ -12349,6 +12492,8 @@ case "$d_getprotoent_r" in
 	*)	case "$usethreads" in
 		define) echo "getprotoent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getprotoent_r=undef
+		getprotoent_r_proto=0
 		;;
 	esac
 	;;
@@ -12408,7 +12553,7 @@ case "$d_getpwent_r" in
 	./protochk "extern $try" $hdrs && getpwent_r_proto=I_SBIH ;;
 	esac
 	case "$getpwent_r_proto" in
-	'')	d_getpwent_r=undef
+	''|0)	d_getpwent_r=undef
  	        getpwent_r_proto=0
 		echo "Disabling getpwent_r, cannot determine prototype." >&4 ;;
 	* )	case "$getpwent_r_proto" in
@@ -12421,6 +12566,8 @@ case "$d_getpwent_r" in
 	*)	case "$usethreads" in
 		define) echo "getpwent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getpwent_r=undef
+		getpwent_r_proto=0
 		;;
 	esac
 	;;
@@ -12459,7 +12606,7 @@ case "$d_getpwnam_r" in
 	./protochk "extern $try" $hdrs && getpwnam_r_proto=I_CSBI ;;
 	esac
 	case "$getpwnam_r_proto" in
-	'')	d_getpwnam_r=undef
+	''|0)	d_getpwnam_r=undef
  	        getpwnam_r_proto=0
 		echo "Disabling getpwnam_r, cannot determine prototype." >&4 ;;
 	* )	case "$getpwnam_r_proto" in
@@ -12472,6 +12619,8 @@ case "$d_getpwnam_r" in
 	*)	case "$usethreads" in
 		define) echo "getpwnam_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getpwnam_r=undef
+		getpwnam_r_proto=0
 		;;
 	esac
 	;;
@@ -12510,7 +12659,7 @@ case "$d_getpwuid_r" in
 	./protochk "extern $try" $hdrs && getpwuid_r_proto=S_TSBI ;;
 	esac
 	case "$getpwuid_r_proto" in
-	'')	d_getpwuid_r=undef
+	''|0)	d_getpwuid_r=undef
  	        getpwuid_r_proto=0
 		echo "Disabling getpwuid_r, cannot determine prototype." >&4 ;;
 	* )	case "$getpwuid_r_proto" in
@@ -12523,6 +12672,8 @@ case "$d_getpwuid_r" in
 	*)	case "$usethreads" in
 		define) echo "getpwuid_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getpwuid_r=undef
+		getpwuid_r_proto=0
 		;;
 	esac
 	;;
@@ -12570,7 +12721,7 @@ case "$d_getservbyname_r" in
 	./protochk "extern $try" $hdrs && getservbyname_r_proto=I_CCSD ;;
 	esac
 	case "$getservbyname_r_proto" in
-	'')	d_getservbyname_r=undef
+	''|0)	d_getservbyname_r=undef
  	        getservbyname_r_proto=0
 		echo "Disabling getservbyname_r, cannot determine prototype." >&4 ;;
 	* )	case "$getservbyname_r_proto" in
@@ -12583,6 +12734,8 @@ case "$d_getservbyname_r" in
 	*)	case "$usethreads" in
 		define) echo "getservbyname_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getservbyname_r=undef
+		getservbyname_r_proto=0
 		;;
 	esac
 	;;
@@ -12617,7 +12770,7 @@ case "$d_getservbyport_r" in
 	./protochk "extern $try" $hdrs && getservbyport_r_proto=I_ICSD ;;
 	esac
 	case "$getservbyport_r_proto" in
-	'')	d_getservbyport_r=undef
+	''|0)	d_getservbyport_r=undef
  	        getservbyport_r_proto=0
 		echo "Disabling getservbyport_r, cannot determine prototype." >&4 ;;
 	* )	case "$getservbyport_r_proto" in
@@ -12630,6 +12783,8 @@ case "$d_getservbyport_r" in
 	*)	case "$usethreads" in
 		define) echo "getservbyport_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getservbyport_r=undef
+		getservbyport_r_proto=0
 		;;
 	esac
 	;;
@@ -12668,7 +12823,7 @@ case "$d_getservent_r" in
 	./protochk "extern $try" $hdrs && getservent_r_proto=I_SD ;;
 	esac
 	case "$getservent_r_proto" in
-	'')	d_getservent_r=undef
+	''|0)	d_getservent_r=undef
  	        getservent_r_proto=0
 		echo "Disabling getservent_r, cannot determine prototype." >&4 ;;
 	* )	case "$getservent_r_proto" in
@@ -12681,6 +12836,8 @@ case "$d_getservent_r" in
 	*)	case "$usethreads" in
 		define) echo "getservent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getservent_r=undef
+		getservent_r_proto=0
 		;;
 	esac
 	;;
@@ -12724,7 +12881,7 @@ case "$d_getspnam_r" in
 	./protochk "extern $try" $hdrs && getspnam_r_proto=S_CSBI ;;
 	esac
 	case "$getspnam_r_proto" in
-	'')	d_getspnam_r=undef
+	''|0)	d_getspnam_r=undef
  	        getspnam_r_proto=0
 		echo "Disabling getspnam_r, cannot determine prototype." >&4 ;;
 	* )	case "$getspnam_r_proto" in
@@ -12737,6 +12894,8 @@ case "$d_getspnam_r" in
 	*)	case "$usethreads" in
 		define) echo "getspnam_r has no prototype, not using it." >&4 ;;
 		esac
+		d_getspnam_r=undef
+		getspnam_r_proto=0
 		;;
 	esac
 	;;
@@ -12768,7 +12927,7 @@ set gmtime_r d_gmtime_r
 eval $inlibc
 case "$d_gmtime_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h"
+	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h $i_systime sys/time.h"
 	case "$d_gmtime_r_proto:$usethreads" in
 	":define")	d_gmtime_r_proto=define
 		set d_gmtime_r_proto gmtime_r $hdrs
@@ -12786,7 +12945,7 @@ case "$d_gmtime_r" in
 	./protochk "extern $try" $hdrs && gmtime_r_proto=I_TS ;;
 	esac
 	case "$gmtime_r_proto" in
-	'')	d_gmtime_r=undef
+	''|0)	d_gmtime_r=undef
  	        gmtime_r_proto=0
 		echo "Disabling gmtime_r, cannot determine prototype." >&4 ;;
 	* )	case "$gmtime_r_proto" in
@@ -12799,6 +12958,8 @@ case "$d_gmtime_r" in
 	*)	case "$usethreads" in
 		define) echo "gmtime_r has no prototype, not using it." >&4 ;;
 		esac
+		d_gmtime_r=undef
+		gmtime_r_proto=0
 		;;
 	esac
 	;;
@@ -13006,7 +13167,7 @@ set localtime_r d_localtime_r
 eval $inlibc
 case "$d_localtime_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h"
+	hdrs="$i_systypes sys/types.h define stdio.h $i_time time.h $i_systime sys/time.h"
 	case "$d_localtime_r_proto:$usethreads" in
 	":define")	d_localtime_r_proto=define
 		set d_localtime_r_proto localtime_r $hdrs
@@ -13024,7 +13185,7 @@ case "$d_localtime_r" in
 	./protochk "extern $try" $hdrs && localtime_r_proto=I_TS ;;
 	esac
 	case "$localtime_r_proto" in
-	'')	d_localtime_r=undef
+	''|0)	d_localtime_r=undef
  	        localtime_r_proto=0
 		echo "Disabling localtime_r, cannot determine prototype." >&4 ;;
 	* )	case "$localtime_r_proto" in
@@ -13037,6 +13198,8 @@ case "$d_localtime_r" in
 	*)	case "$usethreads" in
 		define) echo "localtime_r has no prototype, not using it." >&4 ;;
 		esac
+		d_localtime_r=undef
+		localtime_r_proto=0
 		;;
 	esac
 	;;
@@ -13223,6 +13386,10 @@ eval $inlibc
 set munmap d_munmap
 eval $inlibc
 
+: see if nanosleep exists
+set nanosleep d_nanosleep
+eval $inlibc
+
 : see if nice exists
 set nice d_nice
 eval $inlibc
@@ -13269,7 +13436,7 @@ $rm -f try.c try
 echo " "
 echo 'Checking to see if your C compiler knows about "volatile"...' >&4
 $cat >try.c <<'EOCP'
-int main()
+main()
 {
 	typedef struct _goo_struct goo_struct;
 	goo_struct * volatile goo = ((goo_struct *)0);
@@ -13560,13 +13727,6 @@ $rm -f try.* try
 set d_off64_t
 eval $setvar
 
-: see if POSIX threads are available
-set pthread.h i_pthread
-eval $inhdr
-
-
-
-
 : how to create joinable pthreads
 if test "X$usethreads" = "X$define" -a "X$i_pthread" = "X$define"; then
 	echo " "
@@ -13785,7 +13945,7 @@ case "$d_random_r" in
 	./protochk "extern $try" $hdrs && random_r_proto=I_TS ;;
 	esac
 	case "$random_r_proto" in
-	'')	d_random_r=undef
+	''|0)	d_random_r=undef
  	        random_r_proto=0
 		echo "Disabling random_r, cannot determine prototype." >&4 ;;
 	* )	case "$random_r_proto" in
@@ -13798,6 +13958,8 @@ case "$d_random_r" in
 	*)	case "$usethreads" in
 		define) echo "random_r has no prototype, not using it." >&4 ;;
 		esac
+		d_random_r=undef
+		random_r_proto=0
 		;;
 	esac
 	;;
@@ -13838,7 +14000,7 @@ case "$d_readdir64_r" in
 	./protochk "extern $try" $hdrs && readdir64_r_proto=I_TS ;;
 	esac
 	case "$readdir64_r_proto" in
-	'')	d_readdir64_r=undef
+	''|0)	d_readdir64_r=undef
  	        readdir64_r_proto=0
 		echo "Disabling readdir64_r, cannot determine prototype." >&4 ;;
 	* )	case "$readdir64_r_proto" in
@@ -13851,6 +14013,8 @@ case "$d_readdir64_r" in
 	*)	case "$usethreads" in
 		define) echo "readdir64_r has no prototype, not using it." >&4 ;;
 		esac
+		d_readdir64_r=undef
+		readdir64_r_proto=0
 		;;
 	esac
 	;;
@@ -13881,7 +14045,7 @@ case "$d_readdir_r" in
 	./protochk "extern $try" $hdrs && readdir_r_proto=I_TS ;;
 	esac
 	case "$readdir_r_proto" in
-	'')	d_readdir_r=undef
+	''|0)	d_readdir_r=undef
  	        readdir_r_proto=0
 		echo "Disabling readdir_r, cannot determine prototype." >&4 ;;
 	* )	case "$readdir_r_proto" in
@@ -13894,6 +14058,8 @@ case "$d_readdir_r" in
 	*)	case "$usethreads" in
 		define) echo "readdir_r has no prototype, not using it." >&4 ;;
 		esac
+		d_readdir_r=undef
+		readdir_r_proto=0
 		;;
 	esac
 	;;
@@ -14428,7 +14594,7 @@ case "$d_setgrent_r" in
 	./protochk "extern $try" $hdrs && setgrent_r_proto=V_H ;;
 	esac
 	case "$setgrent_r_proto" in
-	'')	d_setgrent_r=undef
+	''|0)	d_setgrent_r=undef
  	        setgrent_r_proto=0
 		echo "Disabling setgrent_r, cannot determine prototype." >&4 ;;
 	* )	case "$setgrent_r_proto" in
@@ -14441,6 +14607,8 @@ case "$d_setgrent_r" in
 	*)	case "$usethreads" in
 		define) echo "setgrent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setgrent_r=undef
+		setgrent_r_proto=0
 		;;
 	esac
 	;;
@@ -14475,7 +14643,7 @@ case "$d_sethostent_r" in
 	./protochk "extern $try" $hdrs && sethostent_r_proto=V_ID ;;
 	esac
 	case "$sethostent_r_proto" in
-	'')	d_sethostent_r=undef
+	''|0)	d_sethostent_r=undef
  	        sethostent_r_proto=0
 		echo "Disabling sethostent_r, cannot determine prototype." >&4 ;;
 	* )	case "$sethostent_r_proto" in
@@ -14488,6 +14656,8 @@ case "$d_sethostent_r" in
 	*)	case "$usethreads" in
 		define) echo "sethostent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_sethostent_r=undef
+		sethostent_r_proto=0
 		;;
 	esac
 	;;
@@ -14530,7 +14700,7 @@ case "$d_setlocale_r" in
 	./protochk "extern $try" $hdrs && setlocale_r_proto=I_ICBI ;;
 	esac
 	case "$setlocale_r_proto" in
-	'')	d_setlocale_r=undef
+	''|0)	d_setlocale_r=undef
  	        setlocale_r_proto=0
 		echo "Disabling setlocale_r, cannot determine prototype." >&4 ;;
 	* )	case "$setlocale_r_proto" in
@@ -14543,6 +14713,8 @@ case "$d_setlocale_r" in
 	*)	case "$usethreads" in
 		define) echo "setlocale_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setlocale_r=undef
+		setlocale_r_proto=0
 		;;
 	esac
 	;;
@@ -14577,7 +14749,7 @@ case "$d_setnetent_r" in
 	./protochk "extern $try" $hdrs && setnetent_r_proto=V_ID ;;
 	esac
 	case "$setnetent_r_proto" in
-	'')	d_setnetent_r=undef
+	''|0)	d_setnetent_r=undef
  	        setnetent_r_proto=0
 		echo "Disabling setnetent_r, cannot determine prototype." >&4 ;;
 	* )	case "$setnetent_r_proto" in
@@ -14590,6 +14762,8 @@ case "$d_setnetent_r" in
 	*)	case "$usethreads" in
 		define) echo "setnetent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setnetent_r=undef
+		setnetent_r_proto=0
 		;;
 	esac
 	;;
@@ -14640,7 +14814,7 @@ case "$d_setprotoent_r" in
 	./protochk "extern $try" $hdrs && setprotoent_r_proto=V_ID ;;
 	esac
 	case "$setprotoent_r_proto" in
-	'')	d_setprotoent_r=undef
+	''|0)	d_setprotoent_r=undef
  	        setprotoent_r_proto=0
 		echo "Disabling setprotoent_r, cannot determine prototype." >&4 ;;
 	* )	case "$setprotoent_r_proto" in
@@ -14653,6 +14827,8 @@ case "$d_setprotoent_r" in
 	*)	case "$usethreads" in
 		define) echo "setprotoent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setprotoent_r=undef
+		setprotoent_r_proto=0
 		;;
 	esac
 	;;
@@ -14687,7 +14863,7 @@ case "$d_setpwent_r" in
 	./protochk "extern $try" $hdrs && setpwent_r_proto=V_H ;;
 	esac
 	case "$setpwent_r_proto" in
-	'')	d_setpwent_r=undef
+	''|0)	d_setpwent_r=undef
  	        setpwent_r_proto=0
 		echo "Disabling setpwent_r, cannot determine prototype." >&4 ;;
 	* )	case "$setpwent_r_proto" in
@@ -14700,6 +14876,8 @@ case "$d_setpwent_r" in
 	*)	case "$usethreads" in
 		define) echo "setpwent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setpwent_r=undef
+		setpwent_r_proto=0
 		;;
 	esac
 	;;
@@ -14754,7 +14932,7 @@ case "$d_setservent_r" in
 	./protochk "extern $try" $hdrs && setservent_r_proto=V_ID ;;
 	esac
 	case "$setservent_r_proto" in
-	'')	d_setservent_r=undef
+	''|0)	d_setservent_r=undef
  	        setservent_r_proto=0
 		echo "Disabling setservent_r, cannot determine prototype." >&4 ;;
 	* )	case "$setservent_r_proto" in
@@ -14767,6 +14945,8 @@ case "$d_setservent_r" in
 	*)	case "$usethreads" in
 		define) echo "setservent_r has no prototype, not using it." >&4 ;;
 		esac
+		d_setservent_r=undef
+		setservent_r_proto=0
 		;;
 	esac
 	;;
@@ -15048,7 +15228,7 @@ case "$d_srand48_r" in
 	./protochk "extern $try" $hdrs && srand48_r_proto=I_LS ;;
 	esac
 	case "$srand48_r_proto" in
-	'')	d_srand48_r=undef
+	''|0)	d_srand48_r=undef
  	        srand48_r_proto=0
 		echo "Disabling srand48_r, cannot determine prototype." >&4 ;;
 	* )	case "$srand48_r_proto" in
@@ -15061,6 +15241,8 @@ case "$d_srand48_r" in
 	*)	case "$usethreads" in
 		define) echo "srand48_r has no prototype, not using it." >&4 ;;
 		esac
+		d_srand48_r=undef
+		srand48_r_proto=0
 		;;
 	esac
 	;;
@@ -15087,7 +15269,7 @@ case "$d_srandom_r" in
 	./protochk "extern $try" $hdrs && srandom_r_proto=I_TS ;;
 	esac
 	case "$srandom_r_proto" in
-	'')	d_srandom_r=undef
+	''|0)	d_srandom_r=undef
  	        srandom_r_proto=0
 		echo "Disabling srandom_r, cannot determine prototype." >&4 ;;
 	* )	case "$srandom_r_proto" in
@@ -15100,6 +15282,8 @@ case "$d_srandom_r" in
 	*)	case "$usethreads" in
 		define) echo "srandom_r has no prototype, not using it." >&4 ;;
 		esac
+		d_srandom_r=undef
+		srandom_r_proto=0
 		;;
 	esac
 	;;
@@ -15262,6 +15446,26 @@ else
 	echo "Your stdio doesn't appear very std."
 fi
 $rm -f try.c try
+
+# glibc 2.2.90 and above apparently change stdio streams so Perl's
+# direct buffer manipulation no longer works.  The Configure tests
+# should be changed to correctly detect this, but until then,
+# the following check should at least let perl compile and run.
+# (This quick fix should be updated before 5.8.1.)
+# To be defensive, reject all unknown versions, and all versions  > 2.2.9.
+# A. Dougherty, June 3, 2002.
+case "$d_gnulibc" in
+$define)
+	case "$gnulibc_version" in
+	2.[01]*)  ;;
+	2.2) ;;
+	2.2.[0-9]) ;;
+	*)  echo "But I will not snoop inside glibc $gnulibc_version stdio buffers."
+		val="$undef"
+		;;
+	esac
+	;;
+esac
 set d_stdstdio
 eval $setvar
 
@@ -15447,7 +15651,7 @@ eval $inlibc
 echo " "
 echo "Checking to see if your C compiler can copy structs..." >&4
 $cat >try.c <<'EOCP'
-int main()
+main()
 {
 	struct blurfl {
 		int dyick;
@@ -15533,7 +15737,7 @@ case "$d_strerror_r" in
 	./protochk "extern $try" $hdrs && strerror_r_proto=B_IBW ;;
 	esac
 	case "$strerror_r_proto" in
-	'')	d_strerror_r=undef
+	''|0)	d_strerror_r=undef
  	        strerror_r_proto=0
 		echo "Disabling strerror_r, cannot determine prototype." >&4 ;;
 	* )	case "$strerror_r_proto" in
@@ -15546,6 +15750,8 @@ case "$d_strerror_r" in
 	*)	case "$usethreads" in
 		define) echo "strerror_r has no prototype, not using it." >&4 ;;
 		esac
+		d_strerror_r=undef
+		strerror_r_proto=0
 		;;
 	esac
 	;;
@@ -15853,6 +16059,24 @@ echo " "
 set d_telldirproto telldir $i_systypes sys/types.h $i_dirent dirent.h
 eval $hasproto
 
+: see if time exists
+echo " "
+if test "X$d_time" = X -o X"$timetype" = X; then
+    if set time val -f d_time; eval $csym; $val; then
+		echo 'time() found.' >&4
+		val="$define"
+		rp="What is the type returned by time() on this system?"
+		set time_t timetype long stdio.h sys/types.h
+		eval $typedef_ask
+    else
+		echo 'time() not found, hope that will do.' >&4
+		val="$undef"
+		timetype='int';
+    fi
+    set d_time
+    eval $setvar
+fi
+
 : see if this is a sys/times.h system
 set sys/times.h i_systimes
 eval $inhdr
@@ -15880,7 +16104,7 @@ set tmpnam_r d_tmpnam_r
 eval $inlibc
 case "$d_tmpnam_r" in
 "$define")
-	hdrs="$i_systypes sys/types.h define stdio.h $i_stdio stdio.h"
+	hdrs="$i_systypes sys/types.h define stdio.h "
 	case "$d_tmpnam_r_proto:$usethreads" in
 	":define")	d_tmpnam_r_proto=define
 		set d_tmpnam_r_proto tmpnam_r $hdrs
@@ -15894,7 +16118,7 @@ case "$d_tmpnam_r" in
 	./protochk "extern $try" $hdrs && tmpnam_r_proto=B_B ;;
 	esac
 	case "$tmpnam_r_proto" in
-	'')	d_tmpnam_r=undef
+	''|0)	d_tmpnam_r=undef
  	        tmpnam_r_proto=0
 		echo "Disabling tmpnam_r, cannot determine prototype." >&4 ;;
 	* )	case "$tmpnam_r_proto" in
@@ -15907,6 +16131,8 @@ case "$d_tmpnam_r" in
 	*)	case "$usethreads" in
 		define) echo "tmpnam_r has no prototype, not using it." >&4 ;;
 		esac
+		d_tmpnam_r=undef
+		tmpnam_r_proto=0
 		;;
 	esac
 	;;
@@ -15945,7 +16171,7 @@ case "$d_ttyname_r" in
 	./protochk "extern $try" $hdrs && ttyname_r_proto=B_IBI ;;
 	esac
 	case "$ttyname_r_proto" in
-	'')	d_ttyname_r=undef
+	''|0)	d_ttyname_r=undef
  	        ttyname_r_proto=0
 		echo "Disabling ttyname_r, cannot determine prototype." >&4 ;;
 	* )	case "$ttyname_r_proto" in
@@ -15958,6 +16184,8 @@ case "$d_ttyname_r" in
 	*)	case "$usethreads" in
 		define) echo "ttyname_r has no prototype, not using it." >&4 ;;
 		esac
+		d_ttyname_r=undef
+		ttyname_r_proto=0
 		;;
 	esac
 	;;
@@ -15984,7 +16212,7 @@ case "$multiarch" in
 ''|[nN]*) multiarch="$undef" ;;
 esac
 
-: check for ordering of bytes in a long
+: check for ordering of bytes in a UV
 echo " "
 case "$usecrosscompile$multiarch" in
 *$define*)
@@ -16007,21 +16235,23 @@ an Alpha will report 12345678. If the test program works the default is
 probably right.
 I'm now running the test program...
 EOM
-		$cat >try.c <<'EOCP'
+		$cat >try.c <<EOCP
 #include <stdio.h>
+#include <sys/types.h>
+typedef $uvtype UV;
 int main()
 {
 	int i;
 	union {
-		unsigned long l;
-		char c[sizeof(long)];
+		UV l;
+		char c[$uvsize];
 	} u;
 
-	if (sizeof(long) > 4)
-		u.l = (0x08070605L << 32) | 0x04030201L;
+	if ($uvsize > 4)
+		u.l = (((UV)0x08070605) << 32) | (UV)0x04030201;
 	else
-		u.l = 0x04030201L;
-	for (i = 0; i < sizeof(long); i++)
+		u.l = (UV)0x04030201;
+	for (i = 0; i < $uvsize; i++)
 		printf("%c", u.c[i]+'0');
 	printf("\n");
 	exit(0);
@@ -16048,7 +16278,7 @@ EOM
 		fi
 		case "$xxx_prompt" in
 		y)
-			rp="What is the order of bytes in a long?"
+			rp="What is the order of bytes in $uvtype?"
 			. ./myread
 			byteorder="$ans"
 			;;
@@ -17736,6 +17966,7 @@ EOM
 	esac
 fi
 : locate the preferred pager for this system
+fn=f/
 case "$pager" in
 '')
 	dflt=''
@@ -17755,10 +17986,14 @@ case "$pager" in
 	'') dflt=/usr/ucb/more;;
 	esac
 	;;
-*) dflt="$pager";;
+*)	dflt="$pager"
+	: Instruct ./getfile to trust the hinted or previous pager value,
+	: even if it does not begin with a slash.  For example, on os2,
+	: pager might be cmd /c more.  See comments in UU/getfile.
+	fn="f/($pager)"
+	;;
 esac
 echo " "
-fn=f/
 rp='What pager is used on your system?'
 . ./getfile
 pager="$ans"
@@ -17769,10 +18004,7 @@ set pid_t pidtype int stdio.h sys/types.h
 eval $typedef_ask
 
 : Find earliest binary compatible site_perl subdirectory perl can use.
-case "$bincompat5005" in
-"$define") xs_apiversion='5.005' ;;
-*) xs_apiversion=$version ;;   # The current site_perl version.
-esac
+xs_apiversion=$version # The current site_perl version.
 : Find earliest pure perl site_perl subdirectory perl can use.
 : The versioned directories started at 5.005.
 pm_apiversion='5.005'
@@ -18391,24 +18623,6 @@ $rm -f stdioh
 
 
 
-: see if time exists
-echo " "
-if test "X$d_time" = X -o X"$timetype" = X; then
-    if set time val -f d_time; eval $csym; $val; then
-		echo 'time() found.' >&4
-		val="$define"
-		rp="What is the type returned by time() on this system?"
-		set time_t timetype long stdio.h sys/types.h
-		eval $typedef_ask
-    else
-		echo 'time() not found, hope that will do.' >&4
-		val="$undef"
-		timetype='int';
-    fi
-    set d_time
-    eval $setvar
-fi
-
 : see what type uids are declared as in the kernel
 echo " "
 echo "Looking for the type for user ids returned by getuid()."
@@ -18818,7 +19032,7 @@ for i in \`$cc -v -c tmp.c 2>&1 $postprocess_cc_v\`
 do
 	case "\$i" in
 	-D*) echo "\$i" | $sed 's/^-D//';;
-	-A*) $test "$gccversion" && echo "\$i" | $sed 's/^-A\(.*\)(\(.*\))/\1=\2/';;
+	-A*) $test "$gccversion" && echo "\$i" | $sed 's/^-A//' | $sed 's/\(.*\)(\(.*\))/\1=\2/';;
 	esac
 done
 $rm -f try.c
@@ -19108,9 +19322,7 @@ eval $find_extensions
 # Special case:  Add in threads/shared since it is not picked up by the
 # recursive find above (and adding in general recursive finding breaks
 # SDBM_File/sdbm).  A.D.  10/25/2001.
-# Encode::XX need explicit mentions for the same reason.
-# --jhi 2002-03-04
-known_extensions="$known_extensions threads/shared Encode/CN Encode/JP Encode/KR Encode/TW"
+known_extensions="$known_extensions threads/shared"
 set X $nonxs_extensions
 shift
 nonxs_extensions="$*"
@@ -19142,7 +19354,7 @@ for xxx in $known_extensions ; do
 		case "$i_ndbm" in
 		$define)
 		    case "$osname-$use64bitint" in
-		    cygwin-*|hpux-define)
+		    hpux-define)
 			case "$libs" in
 			*-lndbm*) avail_ext="$avail_ext $xxx" ;;
 			esac
@@ -19156,7 +19368,7 @@ for xxx in $known_extensions ; do
 		case "${i_dbm}${i_rpcsvcdbm}" in
 		*"${define}"*)
 		    case "$osname-$use64bitint" in
-		    cygwin-*|hpux-define)
+		    hpux-define)
 			case "$libs" in
 			*-ldbm*) avail_ext="$avail_ext $xxx" ;;
 			esac
@@ -19200,14 +19412,33 @@ for xxx in $known_extensions ; do
                         esac
 		esac
 		;;
-	threads|threads/shared)
-                case "$usethreads" in
-                true|$define|y)
-                        case "$useithreads" in
-                        $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
-                        esac
+	XS/APItest|xs/apitest)
+		# This is just for testing.  Skip it unless we have dynamic loading.
+
+		case "$usedl" in
+		$define) avail_ext="$avail_ext $xxx" ;;
 		esac
 		;;
+	XS/Typemap|xs/typemap)
+		# This is just for testing.  Skip it unless we have dynamic loading.
+		case "$usedl" in
+		$define) avail_ext="$avail_ext $xxx" ;;
+		esac
+		;;
+	threads|threads/shared)
+		# threads and threads::shared are special cases.
+		# To stop people from asking "Perl 5.8.0 was supposed
+		# to have this new fancy threads implementation but my
+		# perl doesn't have it" and from people trying to
+		# (re)install the threads module using CPAN.pm and
+		# CPAN.pm then offering to reinstall Perl 5.8.0,
+		# the threads.pm and threads/shared.pm will always be
+		# there, croaking informatively ("you need to rebuild
+		# all of Perl with threads, sorry") when threads haven't
+		# been compiled in.
+		# --jhi
+		avail_ext="$avail_ext $xxx"
+		;;
 	IPC/SysV|ipc/sysv)
 		: XXX Do we need a useipcsysv variable here
 		case "${d_msg}${d_sem}${d_shm}" in 
@@ -19248,7 +19479,19 @@ Note that DynaLoader is always built and need not be mentioned here.
 
 EOM
 	case "$dynamic_ext" in
-	'') dflt="$avail_ext" ;;
+	'')
+		: Exclude those listed in static_ext
+		dflt=''
+		for xxx in $avail_ext; do
+			case " $static_ext " in
+			*" $xxx "*) ;;
+			*) dflt="$dflt $xxx" ;;
+			esac
+		done
+		set X $dflt
+		shift
+		dflt="$*"
+		;;
 	*)	dflt="$dynamic_ext"
 		# Perhaps we are reusing an old out-of-date config.sh.
 		case "$hint" in
@@ -19344,6 +19587,20 @@ EOM
 	esac
 	;;
 esac
+#        
+# Encode is a special case.  If we are building Encode as a static
+# extension, we need to explicitly list its subextensions as well.
+# For other nested extensions, this is handled automatically by
+# the appropriate Makefile.PL.
+case " $static_ext " in
+	*" Encode "*) # Add the subextensions of Encode
+	cd "$rsrc/ext"
+	for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
+		static_ext="$static_ext Encode/$xxx"
+	done
+	cd "$tdir"
+	;;
+esac
 
 set X $dynamic_ext $static_ext $nonxs_ext
 shift
@@ -19475,7 +19732,6 @@ awk='$awk'
 baserev='$baserev'
 bash='$bash'
 bin='$bin'
-bincompat5005='$bincompat5005'
 binexp='$binexp'
 bison='$bison'
 byacc='$byacc'
@@ -19543,7 +19799,6 @@ d_atoll='$d_atoll'
 d_attribut='$d_attribut'
 d_bcmp='$d_bcmp'
 d_bcopy='$d_bcopy'
-d_bincompat5005='$d_bincompat5005'
 d_bsd='$d_bsd'
 d_bsdgetpgrp='$d_bsdgetpgrp'
 d_bsdsetpgrp='$d_bsdsetpgrp'
@@ -19719,6 +19974,7 @@ d_mktime='$d_mktime'
 d_mmap='$d_mmap'
 d_modfl='$d_modfl'
 d_modfl_pow32_bug='$d_modfl_pow32_bug'
+d_modflproto='$d_modflproto'
 d_mprotect='$d_mprotect'
 d_msg='$d_msg'
 d_msg_ctrunc='$d_msg_ctrunc'
@@ -19734,6 +19990,7 @@ d_msgsnd='$d_msgsnd'
 d_msync='$d_msync'
 d_munmap='$d_munmap'
 d_mymalloc='$d_mymalloc'
+d_nanosleep='$d_nanosleep'
 d_nice='$d_nice'
 d_nl_langinfo='$d_nl_langinfo'
 d_nv_preserves_uv='$d_nv_preserves_uv'
@@ -19953,6 +20210,7 @@ from='$from'
 full_ar='$full_ar'
 full_csh='$full_csh'
 full_sed='$full_sed'
+gccansipedantic='$gccansipedantic'
 gccosandvers='$gccosandvers'
 gccversion='$gccversion'
 getgrent_r_proto='$getgrent_r_proto'
@@ -19982,6 +20240,7 @@ gidtype='$gidtype'
 glibpth='$glibpth'
 gmake='$gmake'
 gmtime_r_proto='$gmtime_r_proto'
+gnulibc_version='$gnulibc_version'
 grep='$grep'
 groupcat='$groupcat'
 groupstype='$groupstype'