[armedbear-devel] #P serialization across Windows/non-Windows (was Re: r12666 breaks ASDF compilation on Linux)

[Alessio Stalla]

On Mon, Jun 14, 2010 at 2:10 PM, Mark Evenson <evenson.not.org at gmail.com> wrote:
> [Ticket #100 filed to track this issue][1].
>
> [1]: http://trac.common-lisp.net/armedbear/ticket/100

Thanks for officially tracking the problem. I think that "fixing" it
only for asdf is simple: just emit (parse-namestring "...") instead of
#P"...". That would allow to re-release 0.20 quickly. I can send a
patch tonight for that.

Eliminating the problem in the general case is harder and we'd better
discuss the possible solutions. Here's my take at it:

1) don't fix it. State clearly that literal pathnames in source are
OS-dependent.

2) keep, for each pathname constructed via #P or parse-namestring, the
string passed by the user, until the pathname is destructively
modified. When dumping it, use that string if available, else warn and
use a calculated string.

3) dump-object for pathnames outputs a MAKE-PATHNAME form that
reconstructs the pathname component by component.

what do you think?

Bye,
Alessio