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Re: gEDA now supports Guile 2.0! (And an issue).
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From: |
Neil Jerram |
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Subject: |
Re: gEDA now supports Guile 2.0! (And an issue). |
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Date: |
Sat, 04 Jun 2011 09:42:14 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) |
Peter TB Brett <address@hidden> writes:
> Can anyone suggest a sensible way to support both? I haven't been able
> to figure out a good feature test... at the moment I've had to resort to
> passing #f. :-(
How about executing a fragment of Guile code that calls display-error,
and seeing if it throws an exception?
scheme@(guile-user)> (false-if-exception (begin (display-error (make-stack #t)
(current-output-port) "a" "b" '() '()) #t))
$2 = #f
scheme@(guile-user)> (false-if-exception (begin (display-error (stack-ref
(make-stack #t) 0) (current-output-port) "a" "b" '() '()) #t))
ERROR: In procedure make-stack:
ERROR: In procedure a: b
$3 = #t
Neil