Integrate:

[ 30391]
Subject: [PATCH] ExtUtils/Constant/Base.pm: use constant folding to eliminated dead code
Message-ID: <20070224125223.GA17227@localhost.localdomain>

[ 30940]
Bump the VERSION of ExtUtils::Constant::Base.
p4raw-link: @30940 on //depot/perl: 1abe45988edc1c4df0edabb952007ef1b6fe20e5
p4raw-link: @30391 on //depot/perl: 47520512bcc7563438628185c4d388f7da46a22c

p4raw-id: //depot/perl@30941
p4raw-edited: from //depot/maint-5.8/perl@30940 'copy'
	lib/ExtUtils/Constant/Base.pm (@28114..)