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Re: Errors using `reload' command
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From: |
Andy Wingo |
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Subject: |
Re: Errors using `reload' command |
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Date: |
Wed, 09 Feb 2011 09:20:23 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) |
On Tue 08 Feb 2011 23:58, Andy Wingo <address@hidden> writes:
> On Thu 03 Feb 2011 20:18, Mark Harig <address@hidden> writes:
>
>> scheme@(guile-user)> ,re (ice-9 readline)
>
> Actually now this causes an infinite loop. Doh. We need defvar,
> somehow...
What do people think about this:
(define-syntax define-once
(syntax-rules ()
((_ sym val)
(define sym (if (defined? 'sym) sym val)))))
Should work, no? I added this to boot-9 locally and used it in readline
and it appears to work fine.
Andy
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