integrate cfgperl and vmsperl changes into mainline

p4raw-id: //depot/perl@5316

diff --cc Porting/makerel
index 2052fc8,2052fc8,2052fc8..4b8c277
--- 1/Porting/makerel
--- 2/Porting/makerel
--- 3/Porting/makerel
+++ b/Porting/makerel
@@@@ -36,7 -36,7 -36,7 +36,7 @@@@ my (@local_patches, @lpatch_tags, $lpat
   @lpatch_tags   = map  {  /^\s*,"(\w+)/ } @local_patches;
   $lpatch_tags   = join "-", @lpatch_tags;
   
---$perl = "perl$vers";
+++$perl = "perl-$vers";
   $reldir = "$perl";
   $reldir .= "-$lpatch_tags" if $lpatch_tags;