Configure: make sure pointers fit in IVs

[khwilliamson]

See #18995

• This set of changes does not require a perldelta entry.

[tonycoz]

Looks reasonable to me.

(watching ./Configure ... -Divsize='_BitInt(128)' fail)

[jkeenan]

See #18995

* This set of changes does not require a perldelta entry.

I don't think that references to a GH ticket are appropriate for the first line of a commit message. The first line should say what the commit does. The purpose or benefit of the commit should be explained in the body of the message. References to GH issues or other resources should go toward the end of the commit message.

[jkeenan]

On 5/12/25 21:34, James E Keenan wrote: *jkeenan* left a comment (Perl/perl5#23275) <https://github.com/Perl/ perl5/pull/23275#issuecomment-2874771656> See #18995 <#18995> |* This set of changes does not require a perldelta entry. | I don't think that references to a GH ticket are appropriate for the / first/ line of a commit message. The first line should say what the commit does. The purpose or benefit of the commit should be explained in the body of the message. References to GH issues or other resources should go toward the end of the commit message.

I may have misunderstood things here. If the Subject line in a ticket becomes the first line in a commit message, then the line with the short GH reference here is satisfactory. I regret my error.

[bulk88]

This change maybe is incompatible with Linux Intel X32 perl builds, if Linux's Intel x32 arch was ever tested or supported by p5p. someone needs to confirm.