Integrate:

Integrate:
[ 25357]
Added amd64 and x86_64 to recognized predefined cpp syms

[ 25387]
Detection of malloc_size and malloc_good_size

[ 25488]
Update win32 config files w.r.t. change #25387

[ 25573]
Change 25226 should have done this too

[ 25733]
Add probe for unsetenv ()
Subject: Re: Perl's handling of environ breaks on Solaris 10
Message-ID: <20051010125117.GA27566@mccoy.peters.homeunix.org>

[ 25734]
Update win32 config files w.r.t. change #25733

[ 25741]
Update to the config boilerplates, by Jarkko

[ 25793]
Add probe for clearenv (), like #25733 for unsetenv ()

[ 25794]
Update win32 config files w.r.t. change #25793

[ 25795]
VMS does not have clearenv () according to John E. Malmberg
Followup to 25793
p4raw-link: @25795 on //depot/perl: 5ff34fde0d97cb207007d7751cd5d6676fd0a063
p4raw-link: @25794 on //depot/perl: 96803be7ff19a3614dff16bb395b21946532b2dc
p4raw-link: @25793 on //depot/perl: b0a2e8e64dee1b1bd00055b3c5b69e2c3c888f55
p4raw-link: @25741 on //depot/perl: 58bf2e2e044ef8fba136d97f676bb7a977be1a6b
p4raw-link: @25734 on //depot/perl: 9c8463ea7c848a6cca2d9db2623308369ba11aca
p4raw-link: @25733 on //depot/perl: bdf33aa7435b6e4ab927ed6430f3f240f211d879
p4raw-link: @25573 on //depot/perl: 0967284d0634c330ce4a0132f349a4158079e725
p4raw-link: @25488 on //depot/perl: 703fb0e2f700da68ca7ae50aa325f18bc3eb54a8
p4raw-link: @25387 on //depot/perl: 7dd121aefd69a3ba2201a35698deaeda3a8a77ad
p4raw-link: @25357 on //depot/perl: 44c87379b0eb26068458a7274e6ba030624f8ac1

p4raw-id: //depot/maint-5.8/perl@26115
p4raw-integrated: from //depot/perl@26114 'copy in' uconfig.h
	(@23027..)
p4raw-integrated: from //depot/perl@25795 'merge in' configure.com
	(@25740..)
p4raw-integrated: from //depot/perl@25794 'edit in' win32/config_H.bc
	(@25734..)
p4raw-branched: from //depot/perl@25741 'branch in' symbian/config.sh
	(@25612..)
p4raw-integrated: from //depot/perl@25741 'copy in' uconfig.sh
	(@24508..) 'merge in' Cross/config.sh-arm-linux
	plan9/config_sh.sample wince/config.ce (@24508..)
	NetWare/config.wc epoc/config.sh (@24949..)
p4raw-integrated: from //depot/perl@25734 'edit in' win32/config.vc
	win32/config_H.gc win32/config_H.vc64 (@25488..)
p4raw-integrated: from //depot/perl@25733 'edit in' Porting/Glossary
	(@25387..) handy.h (@25570..) 'ignore' config_h.SH (@25387..)
p4raw-integrated: from //depot/perl@25573 'edit in' win32/config.bc
	(@25488..)
p4raw-integrated: from //depot/perl@25488 'edit in' win32/config_H.vc
	(@25208..) win32/config.gc win32/config.vc64 (@25215..)
p4raw-integrated: from //depot/perl@25387 'edit in' Configure
	(@25357..)