perl5.000 patch.0m: [various fixes, hint file updates and documentation]

This is my patch  patch.0m  for perl5.000.    
This patch fixes all remaining problems that I am aware of, and for
which I have a solution.  It also updates some hint files and
documentation. 

Here's what's new:

Configure
        Protect against spaces in uname -m output (unicos).
        Look in <stdlib.h> for malloctype and freetype.
        Check if user has void free() or int free().
        Look in linux/signal.h for signal names.

MANIFEST
MANIFEST.new
        Two new hint files:  cxux.sh and PowerUNIX.sh.
        Sorted.

README
        Indicate what gets installed and where it usually goes.
    Thanks to Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>
    for suggesting this.

U/Myinit.U
        Update extliblist comment.

U/dist3_051.pat
    This file contains patches to dist 3 (PL 51) that I used to generate
    Configure for perl.
  
U/mallocsrc.U
        Look in <stdlib.h> for malloctype and freetype.
        Check if user has void free() or int free().
        
config_h.SH
config.H
        Add Free_t to handle void free() vs. int free().

ext/DynaLoader/README
        Updated comment.

ext/POSIX/POSIX.pm
        creat() has 2 arguments, not 3 (thanks, Paul).

ext/POSIX/POSIX.xs
        Fix return type of lseek.

ext/SDBM_File/sdbm/sdbm.h
        Add I_STDLIB guard on #include <stdlib.h>

ext/util/extliblist
        Add note indicating this is obsolete.  Don't remove it because
    people might be using it for their own private extensions.

hints/PowerUNIX.sh
hints/cxux.sh
        New files.  Written by Tom.Horsley@mail.hcsc.com

hints/linux.sh
        Simplified.

lib/ExtUtils/MakeMaker.pm
        Typo fixed, only affected aix?

malloc.c
        Allow for possible int free().

perl.h
pp_sys.c
util.c
        If the user is not using vfork, move the #define vfork fork
    util after various #include files.  Since vfork() and fork() might
    have different prototypes, the #define could cause a conflict in
    system header files.  (Reported for 386bsd.)

Makefile.SH
        make realclean will remove h2xs and makeaperl (but leave behind
        the .SH versions, of course).

24 files changed, 479 insertions, 130 deletions

diff --git a/Configure b/Configure
index 2b3796db67..86f28eb61d 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 Feb 21 11:46:04 EST 1995 [metaconfig 3.0 PL51]
+# Generated on Tue Feb 28 10:00:27 EST 1995 [metaconfig 3.0 PL51]
 
 cat >/tmp/c1$$ <<EOF
 ARGGGHHHH!!!!!
@@ -466,6 +466,7 @@ libs=''
 lns=''
 lseektype=''
 d_mymalloc=''
+freetype=''
 mallocobj=''
 mallocsrc=''
 malloctype=''
@@ -637,7 +638,7 @@ 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 probably want to search /usr/shlib before most other libraries.
-: This is only used by ext/util/extliblist
+: This is only used by the lib/ExtUtils/MakeMaker.pm routine extliblist.
 glibpth=`echo " $glibpth " | sed -e 's! /usr/shlib ! !'`
 glibpth="/usr/shlib $glibpth"
 : Do not use vfork unless overridden by a hint file.
@@ -3418,7 +3419,7 @@ if xxx=`./loc arch blurfl $pth`; $test -f "$xxx"; then
 	tarch=`arch`"-$osname"
 elif xxx=`./loc uname blurfl $pth`; $test -f "$xxx" ; then
 	if uname -m > tmparch 2>&1 ; then
-		tarch=`$cat tmparch`"-$osname"
+		tarch=`$sed -e 's/ /_/g' -e 's/$/'"-$osname/" tmparch`
 	else
 		tarch="$osname"
 	fi
@@ -4918,6 +4919,10 @@ eval $setvar
 set malloc.h i_malloc
 eval $inhdr
 
+: see if stdlib is available
+set stdlib.h i_stdlib
+eval $inhdr
+
 : determine which malloc to compile in
 echo " "
 case "$usemymalloc" in
@@ -4953,29 +4958,48 @@ y*|true)
 	;;
 esac
 
-: compute the type returned by malloc
+: compute the return types of malloc and free
 echo " "
-case "$malloctype" in
-'')
-	$cat >malloc.c <<END
+$cat >malloc.c <<END
 #$i_malloc I_MALLOC
+#$i_stdlib I_STDLIB
 #include <stdio.h>
 #include <sys/types.h>
 #ifdef I_MALLOC
 #include <malloc.h>
 #endif
+#ifdef I_STDLIB
+#include <stdlib.h>
+#endif
+#ifdef TRY_MALLOC
 void *malloc();
+#endif
+#ifdef TRY_FREE
+void free();
+#endif
 END
-	if $cc $ccflags -c malloc.c >/dev/null 2>&1; then
+case "$malloctype" in
+'')
+	if $cc $ccflags -c -DTRY_MALLOC malloc.c >/dev/null 2>&1; then
 		malloctype='void *'
 	else
 		malloctype='char *'
 	fi
-	$rm -f malloc.[co]
 	;;
 esac
 echo "Your system wants malloc to return '$malloctype', it would seem." >&4
 
+case "$freetype" in
+'')
+	if $cc $ccflags -c -DTRY_FREE malloc.c >/dev/null 2>&1; then
+		freetype='void'
+	else
+		freetype='int'
+	fi
+	;;
+esac
+echo "Your system uses $freetype free(), it would seem." >&4
+$rm -f malloc.[co]
 : see if nice exists
 set nice d_nice
 eval $inlibc
@@ -6970,7 +6994,7 @@ echo " "
 case "$sig_name" in
 '')
 	echo "Generating a list of signal names..." >&4
-	xxx=`./findhdr signal.h`" "`./findhdr sys/signal.h`
+	xxx=`./findhdr signal.h`" "`./findhdr sys/signal.h`" "`./findhdr linux/signal.h`
 	set X `cat $xxx 2>&1 | $awk '
 $1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $3 ~ /^[1-9][0-9]*$/ {
 	sig[$3] = substr($2,4,20)
@@ -7495,10 +7519,6 @@ $rm -f varargs*
 set stddef.h i_stddef
 eval $inhdr
 
-: see if stdlib is available
-set stdlib.h i_stdlib
-eval $inhdr
-
 : see if ioctl defs are in sgtty, termio, sys/filio or sys/ioctl
 set sys/filio.h i_sysfilio
 eval $inhdr
@@ -7835,6 +7855,7 @@ extensions='$extensions'
 find='$find'
 flex='$flex'
 fpostype='$fpostype'
+freetype='$freetype'
 full_csh='$full_csh'
 full_sed='$full_sed'
 gcc='$gcc'
diff --git a/MANIFEST b/MANIFEST
index c9ec65a430..fcb1ec3024 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -175,13 +175,15 @@ h2xs.SH			Program to make .xs files from C header files
 handy.h			Handy definitions
 hints/3b1.sh		Hints for named architecture
 hints/3b1cc		Hints for named architecture
-hints/README.hints	Hints for named architecture
+hints/PowerUNIX.sh	Hints for named architecture
+hints/README.hints	Notes about hints.
 hints/aix.sh		Hints for named architecture
 hints/altos486.sh	Hints for named architecture
 hints/apollo.sh		Hints for named architecture
 hints/aux.sh		Hints for named architecture
 hints/bsd386.sh		Hints for named architecture
 hints/convexos.sh	Hints for named architecture
+hints/cxux.sh		Hints for named architecture
 hints/dec_osf.sh	Hints for named architecture
 hints/dgux.sh		Hints for named architecture
 hints/dnix.sh		Hints for named architecture
@@ -312,12 +314,12 @@ lib/tainted.pl		Old code for tainting
 lib/termcap.pl		Perl library supporting termcap usage
 lib/timelocal.pl	Perl library supporting inverse of localtime, gmtime
 lib/validate.pl		Perl library supporting wholesale file mode validation
+makeaperl.SH		perl script that produces a new perl binary
 makedepend.SH		Precursor to makedepend
 makedir.SH		Precursor to makedir
 malloc.c		A version of malloc you might not want
 mg.c			Magic code
 mg.h			Magic header
-makeaperl.SH		perl script that produces a new perl binary
 minimod.PL		Writes lib/ExtUtils/Miniperl.pm
 miniperlmain.c		Basic perl w/o dynamic loading or extensions
 mv-if-diff		Script to mv a file if it changed
diff --git a/MANIFEST.new b/MANIFEST.new
index c9ec65a430..fcb1ec3024 100644
--- a/MANIFEST.new
+++ b/MANIFEST.new
@@ -175,13 +175,15 @@ h2xs.SH			Program to make .xs files from C header files
 handy.h			Handy definitions
 hints/3b1.sh		Hints for named architecture
 hints/3b1cc		Hints for named architecture
-hints/README.hints	Hints for named architecture
+hints/PowerUNIX.sh	Hints for named architecture
+hints/README.hints	Notes about hints.
 hints/aix.sh		Hints for named architecture
 hints/altos486.sh	Hints for named architecture
 hints/apollo.sh		Hints for named architecture
 hints/aux.sh		Hints for named architecture
 hints/bsd386.sh		Hints for named architecture
 hints/convexos.sh	Hints for named architecture
+hints/cxux.sh		Hints for named architecture
 hints/dec_osf.sh	Hints for named architecture
 hints/dgux.sh		Hints for named architecture
 hints/dnix.sh		Hints for named architecture
@@ -312,12 +314,12 @@ lib/tainted.pl		Old code for tainting
 lib/termcap.pl		Perl library supporting termcap usage
 lib/timelocal.pl	Perl library supporting inverse of localtime, gmtime
 lib/validate.pl		Perl library supporting wholesale file mode validation
+makeaperl.SH		perl script that produces a new perl binary
 makedepend.SH		Precursor to makedepend
 makedir.SH		Precursor to makedir
 malloc.c		A version of malloc you might not want
 mg.c			Magic code
 mg.h			Magic header
-makeaperl.SH		perl script that produces a new perl binary
 minimod.PL		Writes lib/ExtUtils/Miniperl.pm
 miniperlmain.c		Basic perl w/o dynamic loading or extensions
 mv-if-diff		Script to mv a file if it changed
diff --git a/Makefile.SH b/Makefile.SH
index e98c9d697f..6bbd7fe884 100644
--- a/Makefile.SH
+++ b/Makefile.SH
@@ -346,7 +346,7 @@ realclean: clean
 	rm -f config.h makefile makefile.old
 	rm -f $(private)
 	rm -rf lib/auto
-	rm -f h2ph h2ph.man c2ph pstruct
+	rm -f h2ph h2ph.man c2ph pstruct h2xs makeaperl
 	rm -rf .config
 	@echo "Note that make realclean does not delete config.sh"
 
diff --git a/README b/README
index 7e0b951625..6f96515ac0 100644
--- a/README
+++ b/README
@@ -172,6 +172,31 @@ Installation
     you are not root, you must own the directories in question and you should
     ignore any messages about chown not working.
 
+    make install will also install the following:
+	perl,
+	    perl5.nnn	where nnn is the current release number.  This
+			will be a link to perl.
+	suidperl,
+	    sperl5.nnn	If you requested setuid emulation.
+	a2p          	awk-to-perl translator
+	cppstdin	This is used by perl -P, if your cc -E can't
+			read from stdin.
+	c2ph, pstruct	Scripts for handling C structures in header files.
+	s2p		sed-to-perl translator
+	find2perl	find-to-perl translator
+	h2xs		Converts C .h header files to Perl extensions.
+
+	library files	in $privlib and $archlib specified to
+			Configure, usually under /usr/local/lib/perl5/.
+	man pages	in the location specified to Configure, usually
+			something like /usr/local/man/man1.
+
+	Perl's *.h header files and the libperl.a library are also
+	installed under $archlib so that you may later build new
+	extensions even if the Perl source is no longer available.
+	
+	make install may also offer to install perl in a "standard" location.
+	
     Most of the documentation in the pod/ directory is also available 
     in HTML format.  Type
 	cd pod; make html; cd ..
diff --git a/U/Myinit.U b/U/Myinit.U
index 15c757c97e..2f69835dbe 100644
--- a/U/Myinit.U
+++ b/U/Myinit.U
@@ -34,7 +34,7 @@ libswanted='net socket inet nsl nm ndbm gdbm dbm db malloc dl'
 libswanted="$libswanted dld ld sun m c cposix posix ndir dir crypt"
 libswanted="$libswanted ucb bsd BSD PW x"
 : We probably want to search /usr/shlib before most other libraries.
-: This is only used by ext/util/extliblist
+: This is only used by the lib/ExtUtils/MakeMaker.pm routine extliblist.
 glibpth=`echo " $glibpth " | sed -e 's! /usr/shlib ! !'`
 glibpth="/usr/shlib $glibpth"
 : Do not use vfork unless overridden by a hint file.
diff --git a/U/dist3_051.pat b/U/dist3_051.pat
new file mode 100644
index 0000000000..fd2ea6701c
--- /dev/null
+++ b/U/dist3_051.pat
@@ -0,0 +1,139 @@
+This file contains patches to dist 3 (PL 51) that I used to generate
+Configure for perl.
+
+These patches do the following:
+
+Oldconfig.U
+    Clean up and extend the $osvers detection for DEC OSF/1 on the Alpha.
+archname.U
+    Protect against spaces in the output of uname -m.
+sig_name.U
+    Look in <linux/signals.h> too.
+usrinc.U
+    Ensure that the ./mips file exists.  libpth.U calls it.
+    
+	Andy Dougherty		doughera@lafcol.lafayette.edu
+	Dept. of Physics
+	Lafayette College,	Easton, PA  18042  USA
+
+Index: Oldconfig.U
+Prereq:  3.0.1.7 
+*** mcon/U/Oldconfig.U	Thu Feb 16 09:52:38 1995
+--- /home2/doughera/lib/dist/U/Oldconfig.U	Thu Feb 16 16:26:25 1995
+***************
+*** 264,275 ****
+  			osvers="$3"
+  			;;
+  		osf1)	case "$5" in
+! 				alpha)  osname=dec_osf
+! 					case "$3" in
+! 						[vt]1\.*) osvers=1 ;;
+! 						[vt]2\.*) osvers=2 ;;
+! 						[vt]3\.*) osvers=3 ;;
+! 					esac
+  					;;
+  			hp*)	osname=hp_osf1	;;
+  			mips)	osname=mips_osf1 ;;
+--- 264,274 ----
+  			osvers="$3"
+  			;;
+  		osf1)	case "$5" in
+! 				alpha)
+! ?X: DEC OSF/1 myuname -a output looks like:  osf1 xxxx t3.2 123.4 alpha
+! ?X: where the version number can be either vn.n or tn.n.
+! 					osname=dec_osf
+! 					osvers=`echo "$3" | sed 's/^[vt]//'`
+  					;;
+  			hp*)	osname=hp_osf1	;;
+  			mips)	osname=mips_osf1 ;;
+Index: archname.U
+Prereq:  3.0.1.1 
+*** mcon/U/archname.U	Thu Feb 16 09:52:31 1995
+--- /home2/doughera/lib/dist/U/archname.U	Mon Feb 27 15:24:22 1995
+***************
+*** 12,18 ****
+  ?RCS: Revision 3.0.1.1  1995/02/15  14:14:21  ram
+  ?RCS: patch51: created
+  ?RCS:
+! ?MAKE:archname myarchname: cat Loc Myread Oldconfig osname test rm
+  ?MAKE:	-pick add $@ %<
+  ?S:archname:
+  ?S:	This variable is a short name to characterize the current
+--- 12,18 ----
+  ?RCS: Revision 3.0.1.1  1995/02/15  14:14:21  ram
+  ?RCS: patch51: created
+  ?RCS:
+! ?MAKE:archname myarchname: sed Loc Myread Oldconfig osname test rm
+  ?MAKE:	-pick add $@ %<
+  ?S:archname:
+  ?S:	This variable is a short name to characterize the current
+***************
+*** 43,49 ****
+  	tarch=`arch`"-$osname"
+  elif xxx=`./loc uname blurfl $pth`; $test -f "$xxx" ; then
+  	if uname -m > tmparch 2>&1 ; then
+! 		tarch=`$cat tmparch`"-$osname"
+  	else
+  		tarch="$osname"
+  	fi
+--- 43,49 ----
+  	tarch=`arch`"-$osname"
+  elif xxx=`./loc uname blurfl $pth`; $test -f "$xxx" ; then
+  	if uname -m > tmparch 2>&1 ; then
+! 		tarch=`$sed -e 's/ /_/g' -e 's/$/'"-$osname/" tmparch`
+  	else
+  		tarch="$osname"
+  	fi
+Index: sig_name.U
+Prereq:  3.0.1.2 
+*** mcon/U/sig_name.U	Wed Jun 22 01:20:22 1994
+--- /home2/doughera/lib/dist/U/sig_name.U	Mon Feb 27 14:54:05 1995
+***************
+*** 40,46 ****
+  case "$sig_name" in
+  '')
+  	echo "Generating a list of signal names..." >&4
+! 	xxx=`./findhdr signal.h`" "`./findhdr sys/signal.h`
+  	set X `cat $xxx 2>&1 | $awk '
+  $1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $3 ~ /^[1-9][0-9]*$/ {
+  	sig[$3] = substr($2,4,20)
+--- 40,46 ----
+  case "$sig_name" in
+  '')
+  	echo "Generating a list of signal names..." >&4
+! 	xxx=`./findhdr signal.h`" "`./findhdr sys/signal.h`" "`./findhdr linux/signal.h`
+  	set X `cat $xxx 2>&1 | $awk '
+  $1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $3 ~ /^[1-9][0-9]*$/ {
+  	sig[$3] = substr($2,4,20)
+Index: usrinc.U
+Prereq:  3.0.1.1 
+*** mcon/U/usrinc.U	Sun May  8 22:14:36 1994
+--- /home2/doughera/lib/dist/U/usrinc.U	Tue Feb 21 11:00:10 1995
+***************
+*** 60,71 ****
+  	fi
+  	$rm -f usr.c usr.out
+  	echo "and you're compiling with the $mips_type compiler and libraries."
+  else
+  	echo "Doesn't look like a MIPS system."
+  	echo "exit 1" >mips
+- 	chmod +x mips
+- 	$eunicefix mips
+  fi
+  echo " "
+  case "$usrinc" in
+  '') ;;
+--- 60,72 ----
+  	fi
+  	$rm -f usr.c usr.out
+  	echo "and you're compiling with the $mips_type compiler and libraries."
++ 	echo "exit 0" >mips
+  else
+  	echo "Doesn't look like a MIPS system."
+  	echo "exit 1" >mips
+  fi
++ chmod +x mips
++ $eunicefix mips
+  echo " "
+  case "$usrinc" in
+  '') ;;
diff --git a/U/dist3_051.patches b/U/dist3_051.patches
deleted file mode 100644
index 8df367c1e2..0000000000
--- a/U/dist3_051.patches
+++ /dev/null
@@ -1,75 +0,0 @@
-
-This file contains 2 patches to dist 3 (PL 51) that I used to generate
-Configure for perl.
-
-The first patch just cleans up and extends the $osvers detection for
-DEC OSF/1 on the Alpha.
-
-The second patch ensures that the ./mips file exists.  libpth.U calls
-it.
-
-	Andy Dougherty		doughera@lafcol.lafayette.edu
-
-
-Index: Oldconfig.U
-Prereq:  3.0.1.7 
-*** mcon/U/Oldconfig.U	Thu Feb 16 09:52:38 1995
---- /home2/doughera/lib/dist/U/Oldconfig.U	Thu Feb 16 16:26:25 1995
-***************
-*** 264,275 ****
-  			osvers="$3"
-  			;;
-  		osf1)	case "$5" in
-! 				alpha)  osname=dec_osf
-! 					case "$3" in
-! 						[vt]1\.*) osvers=1 ;;
-! 						[vt]2\.*) osvers=2 ;;
-! 						[vt]3\.*) osvers=3 ;;
-! 					esac
-  					;;
-  			hp*)	osname=hp_osf1	;;
-  			mips)	osname=mips_osf1 ;;
---- 264,274 ----
-  			osvers="$3"
-  			;;
-  		osf1)	case "$5" in
-! 				alpha)
-! ?X: DEC OSF/1 myuname -a output looks like:  osf1 xxxx t3.2 123.4 alpha
-! ?X: where the version number can be either vn.n or tn.n.
-! 					osname=dec_osf
-! 					osvers=`echo "$3" | sed 's/^[vt]//'`
-  					;;
-  			hp*)	osname=hp_osf1	;;
-  			mips)	osname=mips_osf1 ;;
-Index: usrinc.U
-Prereq:  3.0.1.1 
-*** mcon/U/usrinc.U	Sun May  8 22:14:36 1994
---- /home2/doughera/lib/dist/U/usrinc.U	Tue Feb 21 11:00:10 1995
-***************
-*** 60,71 ****
-  	fi
-  	$rm -f usr.c usr.out
-  	echo "and you're compiling with the $mips_type compiler and libraries."
-  else
-  	echo "Doesn't look like a MIPS system."
-  	echo "exit 1" >mips
-- 	chmod +x mips
-- 	$eunicefix mips
-  fi
-  echo " "
-  case "$usrinc" in
-  '') ;;
---- 60,72 ----
-  	fi
-  	$rm -f usr.c usr.out
-  	echo "and you're compiling with the $mips_type compiler and libraries."
-+ 	echo "exit 0" >mips
-  else
-  	echo "Doesn't look like a MIPS system."
-  	echo "exit 1" >mips
-  fi
-+ chmod +x mips
-+ $eunicefix mips
-  echo " "
-  case "$usrinc" in
-  '') ;;
diff --git a/U/mallocsrc.U b/U/mallocsrc.U
index 83560e8134..6762f9090c 100644
--- a/U/mallocsrc.U
+++ b/U/mallocsrc.U
@@ -15,9 +15,10 @@
 ?RCS: Revision 3.0  1993/08/18  12:09:12  ram
 ?RCS: Baseline for dist 3.0 netwide release.
 ?RCS:
-?MAKE:mallocsrc mallocobj usemymalloc malloctype d_mymalloc: Myread \
+?MAKE:mallocsrc mallocobj usemymalloc malloctype d_mymalloc \
+	freetype: Myread \
 	Oldconfig package Guess Setvar rm cat +cc +ccflags Findhdr \
-	i_malloc sed libs
+	i_malloc i_stdlib sed libs
 ?MAKE:	-pick add $@ %<
 ?S:usemymalloc:
 ?S:	This variable contains y if the malloc that comes with this package
@@ -43,13 +44,22 @@
 ?S:	Otherwise the value is null.  This variable is intended for generating
 ?S:	Makefiles.  See mallocsrc.
 ?S:.
+?S:freetype:
+?S:	This variable contains the return type of free().  It is usually
+?S: void, but occasionally int.
+?S:.
 ?S:malloctype:
 ?S:	This variable contains the kind of ptr returned by malloc and realloc.
 ?S:.
+?C:Free_t:
+?C:	This variable contains the return type of free().  It is usually
+?C: void, but occasionally int.
+?C:.
 ?C:Malloc_t (MALLOCPTRTYPE):
 ?C:	This symbol is the type of pointer returned by malloc and realloc.
 ?C:.
 ?H:#define Malloc_t $malloctype			/**/
+?H:#define Free_t $freetype			/**/
 ?H:.
 ?C:MYMALLOC:
 ?C:	This symbol, if defined, indicates that we're using our own malloc.
@@ -99,28 +109,51 @@ y*|true)
 esac
 
 @end
-@if MALLOCPTRTYPE || Malloc_t
-: compute the type returned by malloc
+@if MALLOCPTRTYPE || Malloc_t || Free_t
+: compute the return types of malloc and free
 echo " "
-case "$malloctype" in
-'')
-	$cat >malloc.c <<END
+$cat >malloc.c <<END
 #$i_malloc I_MALLOC
+#$i_stdlib I_STDLIB
 #include <stdio.h>
 #include <sys/types.h>
 #ifdef I_MALLOC
 #include <malloc.h>
 #endif
+#ifdef I_STDLIB
+#include <stdlib.h>
+#endif
+#ifdef TRY_MALLOC
 void *malloc();
+#endif
+#ifdef TRY_FREE
+void free();
+#endif
 END
-	if $cc $ccflags -c malloc.c >/dev/null 2>&1; then
+@if MALLOCPTRTYPE || Malloc_t
+case "$malloctype" in
+'')
+	if $cc $ccflags -c -DTRY_MALLOC malloc.c >/dev/null 2>&1; then
 		malloctype='void *'
 	else
 		malloctype='char *'
 	fi
-	$rm -f malloc.[co]
 	;;
 esac
 echo "Your system wants malloc to return '$malloctype', it would seem." >&4
+@end
 
+@if Free_t
+case "$freetype" in
+'')
+	if $cc $ccflags -c -DTRY_FREE malloc.c >/dev/null 2>&1; then
+		freetype='void'
+	else
+		freetype='int'
+	fi
+	;;
+esac
+echo "Your system uses $freetype free(), it would seem." >&4
+@end
+$rm -f malloc.[co]
 @end
diff --git a/config.H b/config.H
index fd370bd31d..9f6cb26855 100644
--- a/config.H
+++ b/config.H
@@ -14,7 +14,7 @@
  * $Id: Config_h.U,v 3.0.1.3 1995/01/30 14:25:39 ram Exp $
  */
 
-/* Configuration time: Tue Feb 21 12:13:04 EST 1995
+/* Configuration time: Mon Feb 27 17:21:15 EST 1995
  * Configured by: andy
  * Target system: crystal crystal 3.2 2 i386 
  */
@@ -1398,10 +1398,15 @@
  */
 #define	I_SYS_STAT		/**/
 
+/* Free_t:
+ *	This variable contains the return type of free().  It is usually
+ * void, but occasionally int.
+ */
 /* Malloc_t:
  *	This symbol is the type of pointer returned by malloc and realloc.
  */
 #define Malloc_t char *			/**/
+#define Free_t void			/**/
 
 /* MYMALLOC:
  *	This symbol, if defined, indicates that we're using our own malloc.
diff --git a/config_h.SH b/config_h.SH
index 33aad346bc..ac53373cfd 100755
--- a/config_h.SH
+++ b/config_h.SH
@@ -1412,10 +1412,15 @@ sed <<!GROK!THIS! >config.h -e 's!^#undef!/\*#define!' -e 's!^#un-def!#undef!'
  */
 #$i_sysstat	I_SYS_STAT		/**/
 
+/* Free_t:
+ *	This variable contains the return type of free().  It is usually
+ * void, but occasionally int.
+ */
 /* Malloc_t:
  *	This symbol is the type of pointer returned by malloc and realloc.
  */
 #define Malloc_t $malloctype			/**/
+#define Free_t $freetype			/**/
 
 /* MYMALLOC:
  *	This symbol, if defined, indicates that we're using our own malloc.
diff --git a/ext/DynaLoader/README b/ext/DynaLoader/README
index 19dd8e72f6..c4602d3c39 100644
--- a/ext/DynaLoader/README
+++ b/ext/DynaLoader/README
@@ -46,7 +46,7 @@ After the initial implementation of a new DynaLoader dl_*.xs file
 you may need to edit or create ext/MODULE/MODULE.bs files to reflect
 the needs of your platform and linking software.
 
-Refer to DynaLoader.doc, ext/utils/mkbootstrap and any existing
+Refer to DynaLoader.doc, lib/ExtUtils/MakeMaker.pm and any existing
 ext/MODULE/MODULE.bs files for more information.
 
 Tim Bunce.
diff --git a/ext/POSIX/POSIX.pm b/ext/POSIX/POSIX.pm
index 4ccc5ce520..f59b4c393a 100644
--- a/ext/POSIX/POSIX.pm
+++ b/ext/POSIX/POSIX.pm
@@ -366,7 +366,7 @@ sub errno {
 
 sub creat {
     usage "creat(filename, mode)" if @_ != 2;
-    &open($_[0], &O_WRONLY | &O_CREAT | &O_TRUNC, $_[2]);
+    &open($_[0], &O_WRONLY | &O_CREAT | &O_TRUNC, $_[1]);
 }
 
 sub fcntl {
diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs
index 1a900f08ea..fbd21c894b 100644
--- a/ext/POSIX/POSIX.xs
+++ b/ext/POSIX/POSIX.xs
@@ -2841,7 +2841,7 @@ dup2(fd1, fd2)
 	int		fd1
 	int		fd2
 
-SysRet
+SysRetLong
 lseek(fd, offset, whence)
 	int		fd
 	Off_t		offset
diff --git a/ext/SDBM_File/sdbm/sdbm.h b/ext/SDBM_File/sdbm/sdbm.h
index 6f54bd0502..4d6c844890 100644
--- a/ext/SDBM_File/sdbm/sdbm.h
+++ b/ext/SDBM_File/sdbm/sdbm.h
@@ -155,7 +155,7 @@ extern long sdbm_hash proto((char *, int));
 #endif
 
 /* Use all the "standard" definitions? */
-#ifdef STANDARD_C
+#if defined(STANDARD_C) && defined(I_STDLIB)
 #   include <stdlib.h>
 #endif /* STANDARD_C */
 
diff --git a/ext/util/extliblist b/ext/util/extliblist
index 2b8938fa4d..2351ddfd0e 100755
--- a/ext/util/extliblist
+++ b/ext/util/extliblist
@@ -15,6 +15,10 @@ esac
 :
 : Author:  Andy Dougherty    doughera@lafcol.lafayette.edu
 :
+: This utility was only used by the old Makefile.SH extension
+: mechanism.  It is now obsolete and may be removed in a future
+: release.
+:
 : This utility takes a list of libraries in the form
 : -llib1 -llib2 -llib3
 : and prints out lines suitable for inclusion in an extension
diff --git a/hints/PowerUNIX.sh b/hints/PowerUNIX.sh
new file mode 100644
index 0000000000..f21e6ae8b8
--- /dev/null
+++ b/hints/PowerUNIX.sh
@@ -0,0 +1,75 @@
+# Hints for the Power UNIX operating system running on Harris NightHawk
+# machines.  Written by Tom.Horsley@mail.hcsc.com
+#
+# This config uses dynamic linking and the Harris C compiler.  It has been
+# tested on a Harris 5800 running Power UNIX as well as a (prototype) Harris
+# 6800 running Power UNIX.
+
+# Internally at Harris, we use a source management tool which winds up
+# giving us read-only copies of source trees that are mostly symbolic links.
+# That upsets the perl build process when it tries to edit opcode.h and
+# embed.h or touch perly.c or perly.h, so turn those files into "real" files
+# when Configure runs. (If you already have "real" source files, this won't
+# do anything).
+#
+if [ -x /usr/local/mkreal ]
+then
+   for i in '.' '..'
+   do
+      for j in embed.h opcode.h perly.h perly.c
+      do
+         if [ -h $i/$j ]
+         then
+            ( cd $i ; /usr/local/mkreal $j ; chmod 666 $j )
+         fi
+      done
+   done
+fi
+
+# We DO NOT want -lmalloc or -lPW, we DO need -lgen to follow -lnsl, so
+# fixup libswanted to reflect that desire.
+#
+libswanted=`echo ' '$libswanted' ' | sed -e 's/ malloc / /' -e 's/ PW / /' -e 's/ nsl / nsl gen /'`
+
+# We DO NOT want /usr/ucblib in glibpth
+#
+glibpth=`echo ' '$glibpth' ' | sed -e 's@ /usr/ucblib @ @'`
+
+# Yes, csh exists, but doesn't work worth beans, if perl tries to use it,
+# the glob test fails, so just pretend it isn't there...
+#
+d_csh='undef'
+
+# Need to use Harris cc for most of these options to be meaningful (if you
+# want to get this to work with gcc, you're on your own :-). Passing
+# -Bexport to the linker when linking perl is important because it leaves
+# the interpreter internal symbols visible to the shared libs that will be
+# loaded on demand (and will try to reference those symbols).
+#
+cc='/bin/cc'
+cccdlflags='-Zpic'
+ccdlflags='-Zlink=dynamic -Wl,-Bexport'
+lddlflags='-G'
+
+# Configure imagines that stdio.h is "standard", but it really isn't.
+# Things like the -T and -B file test operators (on file handles) fail when
+# it tries to treat it as "standard"
+#
+d_stdstdio='undef'
+
+# Configure sometime finds what it believes to be ndbm header files on the
+# system and imagines that we have the NDBM library, but we really don't.
+# There is something there that once resembled ndbm, but it is purely
+# for internal use in some tool and has been hacked beyond recognition
+# (or even function :-)
+#
+i_ndbm='undef'
+
+# Misc other flags that might be able to change, but I know these work right.
+#
+d_suidsafe='define'
+d_isascii='define'
+d_mymalloc='undef'
+usemymalloc='n'
+ssizetype='ssize_t'
+usevfork='false'
diff --git a/hints/cxux.sh b/hints/cxux.sh
new file mode 100644
index 0000000000..a4f397c20e
--- /dev/null
+++ b/hints/cxux.sh
@@ -0,0 +1,118 @@
+# Hints for the CX/UX 7.1 operating system running on Harris NightHawk
+# machines.  written by Tom.Horsley@mail.hcsc.com
+#
+# This config is setup for dynamic linking and the Harris C compiler.
+
+# Check some things and print warnings if this isn't going to work...
+#
+case ${SDE_TARGET:-ELF} in
+   [Cc][Oo][Ff][Ff]|[Oo][Cc][Ss]) echo ''
+      echo ''
+      echo WARNING: Do not build perl 5 with the SDE_TARGET set to
+      echo generate coff object - perl 5 must be built in the ELF
+      echo environment.
+      echo ''
+      echo '';;
+   [Ee][Ll][Ff]) : ;;
+   *) echo ''
+      echo 'Unknown SDE_TARGET value: '$SDE_TARGET
+      echo '';;
+esac
+
+case `uname -r` in
+   [789]*) : ;;
+   *) echo ''
+      echo ''
+      echo WARNING: Perl 5 requires shared library support, it cannot
+      echo be built on releases of CX/UX prior to 7.0 with this hints
+      echo file. You\'ll have to do a separate port for the statically
+      echo linked COFF environment.
+      echo ''
+      echo '';;
+esac
+
+# Internally at Harris, we use a source management tool which winds up
+# giving us read-only copies of source trees that are mostly symbolic links.
+# That upsets the perl build process when it tries to edit opcode.h and
+# embed.h or touch perly.c or perly.h, so turn those files into "real" files
+# when Configure runs. (If you already have "real" source files, this won't
+# do anything).
+#
+if [ -x /usr/local/mkreal ]
+then
+   for i in '.' '..'
+   do
+      for j in embed.h opcode.h perly.h perly.c
+      do
+         if [ -h $i/$j ]
+         then
+            ( cd $i ; /usr/local/mkreal $j ; chmod 666 $j )
+         fi
+      done
+   done
+fi
+
+# We DO NOT want -lmalloc
+#
+libswanted=`echo ' '$libswanted' ' | sed -e 's/ malloc / /'`
+
+# Stick the low-level elf library path in first.
+#
+glibpth="/usr/sde/elf/usr/lib $glibpth"
+
+# Need to use Harris cc for most of these options to be meaningful (if you
+# want to get this to work with gcc, you're on your own :-). Passing
+# -Bexport to the linker when linking perl is important because it leaves
+# the interpreter internal symbols visible to the shared libs that will be
+# loaded on demand (and will try to reference those symbols). The -u
+# option to drag 'sigaction' into the perl main program is to make sure
+# it gets defined for the posix shared library (for some reason sigaction
+# is static, rather than being defined in libc.so.1).
+#
+cc='/bin/cc -Xa'
+cccdlflags='-Zelf -Zpic'
+ccdlflags='-Zelf -Zlink=dynamic -Wl,-Bexport -u sigaction'
+lddlflags='-G'
+
+# Configure imagines that stdio.h is "standard", but it really isn't.
+# Things like the -T and -B file test operators (on file handles) fail when
+# it tries to treat it as "standard"
+#
+d_stdstdio='undef'
+
+# Configure imagines that it sees a pw_quota field, but it is really in a
+# different structure than the one it thinks it is looking at.  WARNING:
+# Setting this here in the hints file doesn't help. You need to fix this by
+# editing config.sh after Configure asks you to fix things with a shell
+# escape! (Maybe Configure should actually try to compile a routine to
+# test each field, but what a pain that would be...).
+#
+# Perhaps I should create a config.over file and add this to it now?
+#
+d_pwquota='undef'
+echo ''
+echo ''
+echo WARNING: Edit config.sh when Configure offers to let you do so at the
+echo end of the configuration process and manually change d_pwquota from
+echo define to undef \(or you may want to create a config.over file now\).
+echo ''
+echo ''
+
+# The following silly shell variable is set just so it will be printed out
+# immediately prior to asking the user to edit config.sh :-).
+#
+dont_forget_to_fix_d_pwquota_in_config_to_be_undef="really"
+
+
+# Configure sometime finds what it believes to be ndbm header files on the
+# system and imagines that we have the NDBM library, but we really don't.
+# There is something there that once resembled ndbm, but it is purely
+# for internal use in some tool and has been hacked beyond recognition
+# (or even function :-)
+#
+i_ndbm='undef'
+
+# Don't use the perl malloc
+#
+d_mymalloc='undef'
+usemymalloc='n'
diff --git a/hints/linux.sh b/hints/linux.sh
index bd2fd6742d..cde47b1cb9 100644
--- a/hints/linux.sh
+++ b/hints/linux.sh
@@ -6,20 +6,11 @@
 # Fri Feb  3 14:05:00 EST 1995
 # Use   sh Configure -Dcc=gcc-elf     to try using gcc-elf.  It might work.
 #
-# I don't understand several things in here.  Clarifications are welcome.
-
-# Why is this needed?
-bin='/usr/bin' 
 
 ccflags='-I/usr/include/bsd'
 cppflags=' -I/usr/include/bsd'
 d_dosuid='define'
 
-# Why are these needed?
-gidtype='gid_t'
-groupstype='gid_t'
-uidtype='uid_t'
-
 malloctype='void *'
 usemymalloc='n'
 
@@ -27,12 +18,6 @@ case "$optimize" in
 '') optimize='-O2' ;;
 esac
 
-# Why is this needed?
-nm_opt=''
-
-sig_name='ZERO HUP INT QUIT ILL TRAP IOT UNUSED FPE KILL USR1 SEGV USR2 PIPE ALRM TERM STKFLT CHLD CONT STOP TSTP TTIN TTOU IO XCPU XFSZ VTALRM PROF WINCH'
-signal_t='void'
-
 case "$cc" in
 *cc-elf*)
     so='so'
diff --git a/lib/ExtUtils/MakeMaker.pm b/lib/ExtUtils/MakeMaker.pm
index ec17f1b56a..dbb877eccc 100644
--- a/lib/ExtUtils/MakeMaker.pm
+++ b/lib/ExtUtils/MakeMaker.pm
@@ -2135,7 +2135,7 @@ sub mksymlists {
     return '' unless $Config{'osname'} eq 'aix';
 
     init_main(@ARGV) unless defined $att{'BASEEXT'};
-    if (! %{$att{DL_FUNCS}}) {
+    if (! $att{DL_FUNCS}) {
 	my($bootfunc);
 	($bootfunc = $att{NAME}) =~ s/\W/_/g;
 	$att{DL_FUNCS} = {$att{BASEEXT} => ["boot_$bootfunc"]};
diff --git a/malloc.c b/malloc.c
index ef095c5601..6e664fc39b 100644
--- a/malloc.c
+++ b/malloc.c
@@ -253,7 +253,7 @@ morecore(bucket)
   	}
 }
 
-void
+Free_t
 free(mp)
 	Malloc_t mp;
 {   
diff --git a/perl.h b/perl.h
index be4508958d..94d2779a21 100644
--- a/perl.h
+++ b/perl.h
@@ -72,10 +72,6 @@ EXT char Error[1];
 #define TAINT_PROPER(s)	if (tainting) taint_proper(no_security, s)
 #define TAINT_ENV()	if (tainting) taint_env()
 
-#ifndef HAS_VFORK
-#   define vfork fork
-#endif
-
 #ifdef HAS_GETPGRP2
 #   ifndef HAS_GETPGRP
 #	define HAS_GETPGRP
diff --git a/pp_sys.c b/pp_sys.c
index d25d156d7d..1e8ede804a 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -23,6 +23,13 @@
 #endif
 */
 
+/* Put this after #includes because fork and vfork prototypes may
+   conflict.
+*/
+#ifndef HAS_VFORK
+#   define vfork fork
+#endif
+
 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
 # include <sys/socket.h>
 # include <netdb.h>
diff --git a/util.c b/util.c
index d4920eb768..2c2cba85dc 100644
--- a/util.c
+++ b/util.c
@@ -29,6 +29,13 @@
 #  include <vfork.h>
 #endif
 
+/* Put this after #includes because fork and vfork prototypes may
+   conflict.
+*/
+#ifndef HAS_VFORK
+#   define vfork fork
+#endif
+
 #ifdef I_FCNTL
 #  include <fcntl.h>
 #endif