lang/perl: Add x86_64 config based on i486 config

Signed-off-by: Marcel Denia <naoir@gmx.net>
lang/perl: Upgrade most x86_64 configuration symbols to match a 64-bit environment

Signed-off-by: Marcel Denia <naoir@gmx.net>
lang/perl: Upgrade x86_64 cppsymbols configuration symbol

Signed-off-by: Marcel Denia <naoir@gmx.net>
lang/perl: Bump PKG_RELEASE

Signed-off-by: Marcel Denia <naoir@gmx.net>
Merge pull request #107 from Naoir/perl-x86_64

perl: Add x86_64 support