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Systems that can't USE_LSB_TAG

From: Stefan Monnier
Subject: Systems that can't USE_LSB_TAG
Date: Tue, 15 Apr 2014 21:09:00 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux)

>> Does it make USE_LSB_TAG work under AIX and HP-UX?
>> Or does it fallback on wide-int when USE_LSB_TAG can't be used?
> The latter.

Too bad, I think it's more important to make USE_LSB_TAG work.

>> I think using wide-int silently is not a good idea.  So if USE_LSB_TAG
>> can't be used, I think it'd be better to fail (with a message
>> suggesting to report the problem and use wide-int in the mean time).
> That's easy enough; revised patch attached.

Hmmm.. so with this patch we fail on all hosts where USE_LSB_TAG can't
be used, even those where DATA_SEG_BITS is not needed.

Which systems currently can't USE_LSB_TAG?


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