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Re: [PATCH 2/2] Add module functions to convert from and to big integers


From: Stefan Monnier
Subject: Re: [PATCH 2/2] Add module functions to convert from and to big integers.
Date: Wed, 24 Apr 2019 16:57:46 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

>> I'm not sure I understand the details of the discussion, but if we
>> sometimes include mini-gmp.h (or copies of parts of it) and sometimes
>> gmp.h, isn't there a risk that a module built for "Emacs on
>> amd64" will not work on "all" versions of "Emacs on amd64" (depending
>> on whether it was built with GMP or with mini-gmp)?
>
> Yes, although the module fingerprint is supposed to catch problems
> like that.  Such problems can also be caused by compiling with -O2
> vs -O3, say.

Really?  I thought our module system was designed so modules aren't so
tightly coupled to Emacs's internals [ I remember discussions
around exposing the size of Lisp_Object, for example.  ]


        Stefan



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