[inseparable changes from patch from perl5.003_20 to perl5.003_21]

 BUILD PROCESS

Subject: Make MachTen hints file warn about db-recno failures
Date: Wed, 8 Jan 1997 12:07:18 +0100
From: Dominic Dunlop <domo@slipper.ip.lu>
Files: hints/machten.sh
Msg-ID: <v03010d00aef92fba6aca@[194.51.248.78]>

    (applied based on p5p patch as commit a4c70ab8da3ec1d87c83e5c617f4550814ec1724)

Subject: 5.003_20, FreeBSD 3.0 and minor patch
Date: Wed, 8 Jan 1997 14:37:47 +0100
From: Ollivier Robert <roberto@eurocontrol.fr>
Files: Configure
Msg-ID: <Mutt.19970108143747.roberto@caerdonn.eurocontrol.fr>

    (applied based on p5p patch as commit 50e0d465254be88fb90ac23584812a529741b4b1)

 CORE LANGUAGE CHANGES

Subject: Fix overloading via inherited autoloaded functions
Date: Mon, 13 Jan 1997 05:22:47 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: gv.c lib/overload.pm pod/perldiag.pod t/pragma/overload.t
Msg-ID: <199701131022.FAA22830@monk.mps.ohio-state.edu>

    (applied based on p5p patch as commit a9bc755754f0db5e848e65dfd2e63a96af50ffd4)

Subject: Method call fixes: Don't cache in alias, don't skip undef
From: Chip Salzenberg <chip@atlantic.net>
Files: global.sym gv.c gv.h hv.c op.c pod/perlguts.pod pod/perltoc.pod pp.c pp_ctl.c pp_hot.c proto.h scope.c sv.c t/op/method.t

Subject: Formats can be closures
From: Chip Salzenberg <chip@atlantic.net>
Files: cv.h op.c perly.c perly.c.diff perly.y pp_sys.c sv.h

Subject: Quote 'foo' in C<$x{-foo}>
From: Chip Salzenberg <chip@atlantic.net>
Files: toke.c

Subject: Forbid C< x->{y} > and C< x->[0] > under C<strict refs>
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c pod/perldiag.pod t/pragma/strict-refs

Subject: Allow <=> to return undef when operands are not ordered
From: Chip Salzenberg <chip@perl.com>
Files: MANIFEST pp.c t/op/cmp.t

 CORE PORTABILITY

Subject: Re: Perl 5.003_20: OS/2 patches
Date: Fri, 10 Jan 1997 06:02:16 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: hints/os2.sh os2/Changes os2/os2.c os2/os2ish.h pp_sys.c
Msg-ID: <199701101102.GAA19051@monk.mps.ohio-state.edu>

    (applied based on p5p patch as commit 9a3e71f668bd84b1cf53dd3ea10f588d59ecfebb)

Subject: VMS patches for _20
Date: Tue, 14 Jan 1997 17:34:43 -0500 (EST)
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Files: configpm dosish.h os2/os2ish.h plan9/plan9ish.h proto.h t/pragma/strict.t t/pragma/subs.t t/pragma/warning.t toke.c unixish.h vms/Makefile vms/config.vms vms/descrip.mms vms/genconfig.pl vms/perly_c.vms vms/test.com vms/vmsish.h x2p/a2p.h x2p/str.c

    private-msgid: <01IE7MGK7ULQ003K5M@hmivax.humgen.upenn.edu>

Subject: Irix 6.3 & 6.4 and perl5.003_20
Date: Mon, 13 Jan 1997 17:42:50 -0500 (EST)
From: John Stoffel <jfs@fluent.com>
Files: MANIFEST hints/irix_6_3.sh hints/irix_6_4.sh
Msg-ID: <199701132242.RAA14601@jfs.Fluent.COM>

    (applied based on p5p patch as commit 8a1e91d771b51ae31eed1ac5944c63934213fb07)

Subject: Patch: MachTen hints, Configure
Date: Tue, 14 Jan 1997 13:43:13 +0100
From: Dominic Dunlop <domo@slipper.ip.lu>
Files: Configure hints/machten.sh

    private-msgid: <v03010d00af0123a93670@[194.51.248.75]>

Subject: Rename aux.sh to aux_3.sh for MS-LOSS
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST hints/aux_3.sh

 DOCUMENTATION

Subject: Full documentation generation patch
Date: Wed, 15 Jan 97 11:16:28 +0100
From: Raphael Manfredi <Raphael_Manfredi@grenoble.hp.com>
Files: MANIFEST pod/roffitall pod/rofftoc
Msg-ID: <15309.853323388@lyon.grenoble.hp.com>

    (applied based on p5p patch as commit a3270a1d7469cab9221ab0050a0e6695bd0047d8)

Subject: Document use of pos() and /\G/
Date: Mon, 13 Jan 1997 15:13:12 -0500
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: pod/perlfunc.pod pod/perlnews.pod pod/perlop.pod pod/perlre.pod pod/perltoc.pod pod/perltrap.pod
Msg-ID: <199701132013.PAA26606@aatma.engin.umich.edu>

    (applied based on p5p patch as commit b2a07c1c241ec86f010fc0ea3bfa54c8ec28be90)

Subject: Document new closure warnings
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c pod/perldiag.pod

Subject: Misc. doc patches missing in _20
Date: Tue, 07 Jan 1997 22:55:33 -0500
From: Roderick Schertler <roderick@gate.net>
Files: pod/perlsub.pod pod/perltoc.pod pod/perlvar.pod
Msg-ID: <102.852695733@eeyore.ibcinc.com>

    (applied based on p5p patch as commit b88f04ff2985d0899964b90ae56789d88f6b353e)

 LIBRARY AND EXTENSIONS

Subject: Localize info about filesystems being case-forgiving
From: Chip Salzenberg <chip@atlantic.net>
Files: lib/File/Basename.pm pod/checkpods.PL 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 utils/splain.PL x2p/find2perl.PL x2p/s2p.PL

Subject: Eliminate warning from C<use overload>
From: Chip Salzenberg <chip@atlantic.net>
Files: lib/overload.pm

 OTHER CORE CHANGES

Subject: Fix C< eval { my $x; eval '$x' } >
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c t/op/misc.t

Subject: Don't warn if eval '' uses outer func's lexicals
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c

Subject: Avoid memory wastage in wait(); make pidstatus global
From: Chip Salzenberg <chip@atlantic.net>
Files: global.sym interp.sym perl.c perl.h pp_sys.c

Subject: Forbid ++ and -- on readonly values
Date: Fri, 10 Jan 1997 19:47:16 -0800 (PST)
From: "John Q. Linux" <jql@accessone.com>
Files: pp.c pp_hot.c
Msg-ID: <Pine.LNX.3.95.970110193330.11249D-100000@jql.accessone.com>

    (applied based on p5p patch as commit 74c80e585086695d5428ab316ca82fd6931aeabd)

Subject: Keep array from dying during foreach(@array)
From: Chip Salzenberg <chip@atlantic.net>
Files: cop.h pp_ctl.c

Subject: Fix C< $a="simple"; split /($a)/o >
From: Chip Salzenberg <chip@atlantic.net>
Files: pp.c t/op/misc.t

Subject: Fix for anon-lists with tied entries coredump
Date: Fri, 10 Jan 1997 02:45:11 -0500
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: pp.c
Msg-ID: <199701100745.CAA13057@aatma.engin.umich.edu>

    (applied based on p5p patch as commit d976ac8220f8890bb7663152c4870f60e8e018c8)

Subject: Don't set SVf_PADBUSY on immortal SVs
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c

Subject: Patch for Object subroutines
Date: Tue, 7 Jan 1997 20:56:02 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: cop.h
Msg-ID: <199701080156.UAA15366@monk.mps.ohio-state.edu>

    (applied based on p5p patch as commit 174150afa5efdafc0e94a18211d3c9aa06b15cd9)

Subject: Use an SVt_PVLV to hold stacked OP pointers when debugging
From: Chip Salzenberg <chip@atlantic.net>
Files: pp.c pp_hot.c

Subject: Undo change that freed large pad vars
From: Chip Salzenberg <chip@atlantic.net>
Files: scope.c

 TESTS

Subject: UNIVERSAL tests
From: Roderick Schertler <roderick@gate.net>
Files: MANIFEST t/op/universal.t

Subject: Test deletion of array during foreach
From: Jarkko Hietaniemi <jhi@alpha.hut.fi>
Files: t/op/misc.t

 UTILITIES

Subject: Don't search for pod if path is already valid
Date: Wed, 08 Jan 1997 15:25:19 -0800
From: Wayne Scott <wscott@ichips.intel.com>
Files: utils/perldoc.PL
Msg-ID: <199701082325.PAA04521@pdxlx008.intel.com>

    (applied based on p5p patch as commit 88f0eda82bb679b4e6445ccb17e18d0781c6a5da)

Subject: Yet another perldoc option
Date: Thu, 3 Oct 1996 00:00:35 +0200
From: Gisle Aas <aas@aas.no>
Files: utils/perldoc.PL
Msg-ID: <199610022200.AAA15334@furubotn.sn.no>

    (applied based on p5p patch as commit a2333f3625faa17fb193cfa25c3d598cb59f105f)

Subject: Re: perldoc, temp files, async pagers
Date: 07 Jan 1997 22:54:14 -0500
From: Roderick Schertler <roderick@gate.net>
Files: utils/perldoc.PL
Msg-ID: <pzwwtoom8p.fsf@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 7c36043de26da560a0f7eb04f36d232762c0092c)

1 files changed, 60 insertions, 0 deletions

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index fb0a2d76c0..d08d2dc452 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -754,6 +754,11 @@ to a matched substring is valid only as part of a regular expression pattern.
 Trying to do this in ordinary Perl code produces a value that prints
 out looking like SCALAR(0xdecaf).  Use the $1 form instead.
 
+=item Can't use bareword ("%s") as %s ref while \"strict refs\" in use
+
+(F) Only hard references are allowed by "strict refs".  Symbolic references
+are disallowed.  See L<perlref>.
+
 =item Can't use string ("%s") as %s ref while "strict refs" in use
 
 (F) Only hard references are allowed by "strict refs".  Symbolic references
@@ -1487,6 +1492,17 @@ will extend the buffer and zero pad the new area.
 (F) An attempt was made to use an entry in an overloading table that
 somehow no longer points to a valid method.  See L<overload>.
 
+=item Stub found while resolving method `%s' overloading `%s' in package `%s'
+
+(P) Overloading resolution over @ISA tree may be broken by importing stubs.
+Stubs should never be implicitely created, but explicit calls to C<can>
+may break this.
+
+=item Cannot resolve method `%s' overloading `%s' in package `s'
+
+(P) Internal error trying to resolve overloading specified by a method
+name (as opposed to a subroutine reference).
+
 =item Operator or semicolon missing before %s
 
 (S) You used a variable or subroutine call where the parser was
@@ -2385,6 +2401,50 @@ something else of the same name (usually a subroutine) is exported
 by that module.  It usually means you put the wrong funny character
 on the front of your variable.
 
+=item Variable "%s" may be unavailable
+
+(W) An inner (nested) I<anonymous> subroutine is inside a I<named>
+subroutine, and outside that is another subroutine; and the anonymous
+(innermost) subroutine is referencing a lexical variable defined in
+the outermost subroutine.  For example:
+
+   sub outermost { my $a; sub middle { sub { $a } } }
+
+If the anonymous subroutine is called or referenced (directly or
+indirectly) from the outermost subroutine, it will share the variable
+as you would expect.  But if the anonymous subroutine is called or
+referenced when the outermost subroutine is not active, it will see
+the value of the shared variable as it was before and during the
+*first* call to the outermost subroutine, which is probably not what
+you want.
+
+In these circumstances, it is usually best to make the middle
+subroutine anonymous, using the C<sub {}> syntax.  Perl has specific
+support for shared variables in nested anonymous subroutines; a named
+subroutine in between interferes with this feature.
+
+=item Variable "%s" will not stay shared
+
+(W) An inner (nested) I<named> subroutine is referencing a lexical
+variable defined in an outer subroutine.
+
+When the inner subroutine is called, it will probably see the value of
+the outer subroutine's variable as it was before and during the
+*first* call to the outer subroutine; in this case, after the first
+call to the outer subroutine is complete, the inner and outer
+subroutines will no longer share a common value for the variable.  In
+other words, the variable will no longer be shared.
+
+Furthermore, if the outer subroutine is anonymous and references a
+lexical variable outside itself, then the outer and inner subroutines
+will I<never> share the given variable.
+
+This problem can usually be solved by making the inner subroutine
+anonymous, using the C<sub {}> syntax.  When inner anonymous subs that
+reference variables in outer subroutines are called or referenced,
+they are automatically re-bound to the current values of such
+variables.
+
 =item Variable syntax.
 
 (A) You've accidentally run your script through B<csh> instead