[inseparable changes from patch from perl5.003_11 to perl5.003_12]

 CORE LANGUAGE CHANGES

Subject: Support C<delete @hash{@keys}>
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c op.h opcode.pl pod/perldiag.pod pod/perlfunc.pod pp.c t/op/delete.t

Subject: Autovivify scalars
From: Chip Salzenberg <chip@atlantic.net>
Files: dump.c op.c op.h pp.c pp_hot.c

 DOCUMENTATION

Subject: Update pods: perldelta -> perlnews, perli18n -> perllocale
From: Tom Christiansen <tchrist@perl.com>
Files: MANIFEST pod/perl.pod pod/perldelta.pod pod/perli18n.pod pod/perlnews.pod

Subject: perltoot.pod
Date: Mon, 09 Dec 1996 07:44:10 -0700
From: Tom Christiansen <tchrist@mox.perl.com>
Files: MANIFEST pod/perltoot.pod
Msg-ID: <199612091444.HAA09947@toy.perl.com>

    (applied based on p5p patch as commit 32e22efaa9ec59b73a208b6c532a0b435e2c6462)

Subject: Perlguts, version 25
Date: Fri, 6 Dec 96 11:40:27 PST
From: Jeff Okamoto <okamoto@hpcc123.corp.hp.com>
Files: pod/perlguts.pod

    private-msgid: <199612061940.AA055461228@hpcc123.corp.hp.com>

Subject: pod patches for English errors
Date: Mon, 09 Dec 1996 13:33:11 -0800
From: Steve Kelem <steve.kelem@xilinx.com>
Files: pod/*.pod
Msg-ID: <24616.850167191@castor>

    (applied based on p5p patch as commit 0135f10892ed8a21c4dbd1fca21fbcc365df99dd)

Subject: Misc doc updates
Date: Sat, 14 Dec 1996 18:56:33 -0700
From: Tom Christiansen <tchrist@mox.perl.com>
Files: pod/*

    Subject: Re: perldelta.pod 
    
    Here are some diffs to the _11 pods.  I forgot to add perldelta to
    perl.pod though.
    
    And *PLEASE* fix the Artistic License so it no longer has the bogus
    "whomever" misdeclined in the nominative case:
    
        under the copyright of this Package, but belong to whomever generated
        them, and may be sold commercially, and may be aggregated with this
    
    It should obviously be "whoever".
    
    p5p-msgid: <199612150156.SAA12506@mox.perl.com>

 OTHER CORE CHANGES

Subject: Allow assignment to empty array values during foreach()
From: Chip Salzenberg <chip@atlantic.net>
Files: cop.h global.sym mg.c op.c perl.h pp_hot.c proto.h sv.c

Subject: Fix nested closures
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c opcode.pl pp.c pp_ctl.c pp_hot.c

Subject: Fix core dump on auto-vivification
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_hot.c

Subject: Fix core dump on C<open $undef_var, "X">
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_sys.c

Subject: Fix -T/-B on globs and globrefs
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_sys.c

Subject: Fix memory management of $`, $&, and $'
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_hot.c regexec.c

Subject: Fix paren matching during backtracking
From: Chip Salzenberg <chip@atlantic.net>
Files: regexec.c

Subject: Fix memory leak and std{in,out,err} death in perl_{con,de}str
From: Chip Salzenberg <chip@atlantic.net>
Files: miniperlmain.c perl.c perl.h sv.c

Subject: Discard garbage bytes at end of prototype()
From: Chip Salzenberg <chip@atlantic.net>
Files: pp.c

Subject: Fix local($pack::{foo})
From: Chip Salzenberg <chip@atlantic.net>
Files: global.sym pp.c pp_hot.c proto.h scope.c

Subject: Disable warn, die, and parse hooks _before_ global destruction
From: Chip Salzenberg <chip@atlantic.net>
Files: perl.c

Subject: Re: Bug in formline 
Date: Sun, 08 Dec 1996 14:58:32 -0500
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: pp_ctl.c
Msg-ID: <199612081958.OAA26025@aatma.engin.umich.edu>

    (applied based on p5p patch as commit b386bda18108ba86d0b76ebe2d8745eafa80f39e)

Subject: Fix C<@a = ($a,$b,$c,$d) = (1,2)>
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_hot.c

Subject: Properly support and document newRV{,_inc,_noinc}
From: Chip Salzenberg <chip@atlantic.net>
Files: global.sym pod/perlguts.pod sv.c sv.h

Subject: Allow lvalue pos inside recursive function
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c pp.c pp_ctl.c pp_hot.c

 PORTABILITY

Subject: Make $privlib contents compatible with 5.003
From: Chip Salzenberg <chip@atlantic.net>
Files: INSTALL ext/Opcode/Safe.pm installperl lib/FileHandle.pm lib/Test/Harness.pm

Subject: Support $bincompat3 config variable; update metaconfig units
From: Chip Salzenberg <chip@atlantic.net>
Files: Configure MANIFEST compat3.sym config_h.SH embed.pl global.sym old_embed.pl old_global.sym old_perl_exp.SH perl_exp.SH

Subject: Look for gettimeofday() in Configure
Date: Wed, 11 Dec 1996 15:49:57 +0100
From: John Hughes <john@AtlanTech.COM>
Files: Configure config_H config_h.SH pp.c

    Subject: perl5.003_11, Should base use of gettimeofday on HAS_GETTIMEOFDAY, not I_SYS_TIME
    
    I've been installing perl5.003_11 on a SCO system that has the TCP/IP runtime
    installed but not the TCP/IP development system.
    
    Unfortunately the <sys/time.h> include file is included in the TCP/IP runtime
    while libsocket.a is in the development system.
    
    This means that pp.c decides to use "gettimeofday" because <sys/time.h> is
    present but I can't link the perl that gets compiled.
    
    So, here's a patch to base the use of "gettimeofday" on "HAS_GETTIMEOFDAY"
    instead of "I_SYS_TIME".  I also took the liberty of removing the special
    case for plan9 (I assume plan9 has <sys/time.h> but no gettimeofday.  Am I
    right?).
    
    p5p-msgid: <01BBE77A.F6F37F80@malvinas.AtlanTech.COM>

Subject: Make $startperl a relative path if people want portable scrip
From: Chip Salzenberg <chip@atlantic.net>
Files: Configure

Subject: Homogenize use of "eval exec" hack
From: Chip Salzenberg <chip@atlantic.net>
Files: Porting/Glossary eg/README eg/nih eg/sysvipc/ipcmsg eg/sysvipc/ipcsem eg/sysvipc/ipcshm lib/diagnostics.pm makeaperl.SH pod/checkpods.PL pod/perlrun.pod pod/pod2html.PL pod/pod2latex.PL pod/pod2man.PL pod/pod2text.PL utils/c2ph.PL utils/h2ph.PL utils/h2xs.PL utils/perlbug.PL utils/perldoc.PL utils/pl2pm.PL x2p/a2py.c x2p/find2perl.PL x2p/s2p.PL

Subject: LynxOS support
Date: Thu, 12 Dec 1996 09:25:00 PST
From: Greg Seibert <seibert@Lynx.COM>
Files: Configure MANIFEST hints/lynxos.sh t/op/stat.t
Msg-ID: <m0vYEsY-0000IZC@kzinti.lynx.com>

    (applied based on p5p patch as commit 6693373533b15e559fd8f0f1877e5e6ec15483cc)

Subject: Re: db-recno.t failures with _11 on Freebsd 2.1-stable
Date: 11 Dec 1996 18:58:56 -0500
From: Roderick Schertler <roderick@gate.net>
Files: INSTALL hints/freebsd.sh
Msg-ID: <pzohg0r5tr.fsf@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 10e40321ee752c58e3407b204c74c8049894cb51)

Subject: VMS patches to 5.003_11
Date: Mon, 09 Dec 1996 23:16:10 -0500 (EST)
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Files: MANIFEST regexec.c t/lib/filehand.t util.c vms/*

    private-msgid: <01ICTR32LCZG001A1D@hmivax.humgen.upenn.edu>

 TESTING

Subject: recurse recurse recurse ...
Date: Mon, 9 Dec 1996 23:44:27 +0200 (EET)
From: Jarkko Hietaniemi <jhi@cc.hut.fi>
Files: MANIFEST t/op/recurse.t

    private-msgid: <199612092144.XAA29025@alpha.hut.fi>

 UTILITIES, LIBRARY, AND EXTENSIONS

Subject: Add CPAN and Net::FTP
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST lib/CPAN.pm lib/CPAN/FirstTime.pm lib/CPAN/Nox.pm lib/Net/FTP.pm lib/Net/Netrc.pm lib/Net/Socket.pm pod/perlmod.pod

Subject: Add File::Compare
Date: Mon, 16 Dec 1996 18:44:59 GMT
From: Nick Ing-Simmons <nik@tiuk.ti.com>
Files: MANIFEST lib/File/Compare.pm pod/perlmod.pod
Msg-ID: <199612161844.SAA02152@pluto>

    (applied based on p5p patch as commit ec971c5c328aca84fb827f69f2cc1dc3be81f830)

Subject: Add Tie::RefHash
Date: Sun, 15 Dec 1996 18:58:08 -0500
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: MANIFEST lib/Tie/RefHash.pm pod/perlmod.pod
Msg-ID: <199612152358.SAA28665@aatma.engin.umich.edu>

    (applied based on p5p patch as commit 9a079709134ebbf4c935cc8752fdb564e5c82b94)

Subject: Put "splain" in utils.
From: Chip Salzenberg <chip@atlantic.net>
Files: Makefile.SH installperl utils/Makefile utils/splain.PL

Subject: Some h2ph fixes
Date: Fri, 13 Dec 1996 11:34:12 -0800
From: Jeff Okamoto <okamoto@hpcc123.corp.hp.com>
Files: utils/h2ph.PL

    Here is a message regarding changes to h2ph that should probably be folded
    into the 5.004 release.
    
    p5p-msgid: <199612131934.AA289845652@hpcc123.corp.hp.com>

1 files changed, 55 insertions, 27 deletions

diff --git a/perl.c b/perl.c
index 2544fd37cd..3e03044cc8 100644
--- a/perl.c
+++ b/perl.c
@@ -117,6 +117,7 @@ register PerlInterpreter *sv_interp;
     rsfp	= Nullfp;
     statname	= Nullsv;
     tmps_floor	= -1;
+    perl_destruct_level = 1;
 #endif
 
     init_ids();
@@ -159,11 +160,22 @@ register PerlInterpreter *sv_interp;
 #ifdef DEBUGGING
     {
 	char *s;
-	if (s = getenv("PERL_DESTRUCT_LEVEL"))
-	    destruct_level = atoi(s);
+	if (s = getenv("PERL_DESTRUCT_LEVEL")) {
+	    int i = atoi(s);
+	    if (destruct_level < i)
+		destruct_level = i;
+	}
     }
 #endif
 
+    /* unhook hooks which will soon be, or use, destroyed data */
+    SvREFCNT_dec(warnhook);
+    warnhook = Nullsv;
+    SvREFCNT_dec(diehook);
+    diehook = Nullsv;
+    SvREFCNT_dec(parsehook);
+    parsehook = Nullsv;
+
     LEAVE;
     FREETMPS;
 
@@ -192,15 +204,23 @@ register PerlInterpreter *sv_interp;
 	return;
     }
 
-    /* unhook hooks which may now point to, or use, broken code	*/
-    if (warnhook && SvREFCNT(warnhook))
-	SvREFCNT_dec(warnhook);
-    if (diehook && SvREFCNT(diehook))
-	SvREFCNT_dec(diehook);
-    if (parsehook && SvREFCNT(parsehook))
-	SvREFCNT_dec(parsehook);
-    
+    /* loosen bonds of global variables */
+
+    setdefout(Nullgv);
+
+    sv_free(nrs);
+    nrs = Nullsv;
+
+    sv_free(lastscream);
+    lastscream = Nullsv;
+
+    sv_free(statname);
+    statname = Nullsv;
+    statgv = Nullgv;
+    laststatval = -1;
+
     /* Prepare to destruct main symbol table.  */
+
     hv = defstash;
     defstash = 0;
     SvREFCNT_dec(hv);
@@ -1943,15 +1963,32 @@ static void
 init_stacks()
 {
     curstack = newAV();
-    mainstack = curstack;			/* remember in case we switch stacks */
-    AvREAL_off(curstack);			/* not a real array */
+    mainstack = curstack;		/* remember in case we switch stacks */
+    AvREAL_off(curstack);		/* not a real array */
     av_extend(curstack,127);
 
     stack_base = AvARRAY(curstack);
     stack_sp = stack_base;
     stack_max = stack_base + 127;
 
-    /* Shouldn't these stacks be per-interpreter? */
+    cxstack_max = 8192 / sizeof(CONTEXT) - 2;	/* Use most of 8K. */
+    New(50,cxstack,cxstack_max + 1,CONTEXT);
+    cxstack_ix	= -1;
+
+    New(50,tmps_stack,128,SV*);
+    tmps_ix = -1;
+    tmps_max = 128;
+
+    DEBUG( {
+	New(51,debname,128,char);
+	New(52,debdelim,128,char);
+    } )
+
+    /*
+     * The following stacks almost certainly should be per-interpreter,
+     * but for now they're not.  XXX
+     */
+
     if (markstack) {
 	markstack_ptr = markstack;
     } else {
@@ -1982,20 +2019,7 @@ init_stacks()
 	New(54,retstack,16,OP*);
 	retstack_ix = 0;
 	retstack_max = 16;
-   }
-
-    cxstack_max = 8192 / sizeof(CONTEXT) - 2;	/* Use most of 8K. */
-    New(50,cxstack,cxstack_max + 1,CONTEXT);
-    cxstack_ix	= -1;
-
-    New(50,tmps_stack,128,SV*);
-    tmps_ix = -1;
-    tmps_max = 128;
-
-    DEBUG( {
-	New(51,debname,128,char);
-	New(52,debdelim,128,char);
-    } )
+    }
 }
 
 static void
@@ -2003,6 +2027,10 @@ nuke_stacks()
 {
     Safefree(cxstack);
     Safefree(tmps_stack);
+    DEBUG( {
+	Safefree(debname);
+	Safefree(debdelim);
+    } )
 }
 
 static PerlIO *tmpfp;  /* moved outside init_lexer() because of UNICOS bug */