[inseparable changes from patch from perl5.003_18 to perl5.003_19]

 CORE LANGUAGE CHANGES

Subject: Make method cache invisible to user code
From: Chip Salzenberg <chip@atlantic.net>
Files: dump.c gv.c gv.h hv.c op.c perl.c pp_hot.c pp_sys.c sv.c toke.c

Subject: Never parse "{m,s,y,tr,q{,q,w,x}}:{,:}" as package or label
From: Chip Salzenberg <chip@atlantic.net>
Files: toke.c

 CORE PORTABILITY

Subject: Fix $^X under HP-UX
From: Chip Salzenberg <chip@atlantic.net>
Files: hints/hpux.sh toke.c

Subject: New hints/hpux.sh
Date: Tue, 31 Dec 1996 15:09:32 -0800
From: Jeff Okamoto <okamoto@hpcc123.corp.hp.com>
Files: hints/hpux.sh

    private-msgid: <199612312309.AA283393772@hpcc123.corp.hp.com>

 DOCUMENTATION

Subject: Perlguts, version 28
Date: Fri, 3 Jan 1997 13:10:46 -0800
From: Jeff Okamoto <okamoto@hpcc123.corp.hp.com>
Files: pod/perlguts.pod

    private-msgid: <199701032110.AA102535846@hpcc123.corp.hp.com>

Subject: Miscellaneous pod patches
From: Ralf S. Engelschall <rse@engelschall.com>
Files: pod/Makefile pod/perldebug.pod pod/perlfunc.pod pod/perlguts.pod

Subject: expanded flock() docs
Date: Fri, 03 Jan 1997 19:31:11 -0500
From: Roderick Schertler <roderick@gate.net>
Files: pod/perlfunc.pod
Msg-ID: <4481.852337871@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 1fd81fbbe87d964ad1f7dbdce41e36f3781dcf82)

Subject: Use Text::Wrap in buildtoc; run buildtoc
From: Ulrich Pfeifer <pfeifer@charly.informatik.uni-dortmund.de>
Files: pod/buildtoc pod/perltoc.pod

Subject: Remove obsolete perlovl.pod
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST plan9/mkfile pod/perlovl.pod vms/Makefile vms/descrip.mms

 OTHER CORE CHANGES

Subject: Fix segv when calling named closures
From: Chip Salzenberg <chip@atlantic.net>
Files: pp_hot.c

Subject: Finish rationalizing "undef value" warnings
From: Chip Salzenberg <chip@atlantic.net>
Files: doop.c pp.c sv.c t/op/assignwarn.t

Subject: Arrange for all "_<file" entries to be in %main::
From: Chip Salzenberg <chip@atlantic.net>
Files: gv.c lib/perl5db.pl

Subject: Introduce CVf_NODEBUG flag
Date: Wed, 01 Jan 1997 15:42:05 -0500
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: cv.h pp_hot.c
Msg-ID: <199701012042.PAA25994@aatma.engin.umich.edu>

    (applied based on p5p patch as commit a3d90dd510fe5a67ed9b80e603493d285c30aa97)

Subject: Reword 'may be "0"' warning per Larry; fix its line number
From: Chip Salzenberg <chip@atlantic.net>
Files: op.c pod/perldiag.pod

Subject: 5.003_18: perl_{con,des}truct fixes
Date: Fri, 03 Jan 1997 15:42:04 -0500
From: Doug MacEachern <dougm@osf.org>
Files: perl.c perl.h pod/perlembed.pod pod/perltoc.pod t/op/sysio.t
Msg-ID: <199701032042.PAA06766@postman.osf.org>

    (applied based on p5p patch as commit 316c7b3d7b47e3143f94c7f8621e854c519d1e87)

Subject: Fix lost value from READLINE after TIEHANDLE
From: Gurusamy Sarathy <gsar@engin.umich.edu>
Files: pp_hot.c sv.h

 TESTS

Subject: Create t/pragma directory; populate with new and old
From: Paul Marquess <pmarquess@bfsec.bt.co.uk>
Files: MANIFEST Makefile.SH t/TEST t/comp/use.t t/lib/locale.t t/op/overload.t t/op/use.t t/pragma/locale.t t/pragma/overload.t t/pragma/strict-refs t/pragma/strict-subs t/pragma/strict-vars t/pragma/strict.t t/pragma/subs.t t/pragma/warn-global t/pragma/warning.t

Subject: New tests: comp/colon.t and op/assignwarn.t
From: Robin Barker <rmb@cise.npl.co.uk>
Files: MANIFEST t/comp/colon.t t/op/assignwarn.t

1 files changed, 9 insertions, 1 deletions

diff --git a/sv.h b/sv.h
index 29342f0922..01865360d2 100644
--- a/sv.h
+++ b/sv.h
@@ -553,7 +553,15 @@ SV *newRV_noinc _((SV *));
 
 #define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
 
-#define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
+#define SvSetSV(dst,src) if ((dst) != (src)) sv_setsv(dst,src)
+
+#define SvSetSV_nosteal(dst,src) \
+	    if ((dst) != (src)) {			\
+		U32 tMpF = SvFLAGS(src) & SVs_TEMP;	\
+		SvTEMP_off(src);			\
+		sv_setsv(dst, src);			\
+		SvFLAGS(src) |= tMpF;			\
+	    }
 
 #define SvPEEK(sv) sv_peek(sv)