clang warning about mini-gmp.c when used in Emacs

[Niels Möller]

Torbjörn Granlund <tg at gmplib.org> writes:

> The language accepted by -Wall -Werror ain't C.  Unfortunately, GMP and
> its configure snippets are written in C.

I've always liked gcc -Wall. I think it adheres to its design to warn
only about things that (1) are prone to be errors, and (2) in the case
that they aren't errors, are easy to clarify in a way that makes the
compiler stop warning about them.

Use of -Werror, on the other hand, is something that I can't generally
recommend. Imposing it on library users by default is certainly a bad
idea. Using it when compiling tests that are part of configure is almost
sure to break.

But it could make sense to enable in certain nightly builds with known
compilers, if one has the ambition that the code should build without
(certain) warnings in that configuration, and stay that way.

Regards,
/Niels

-- 
Niels Möller. PGP key CB4962D070D77D7FCB8BA36271D8F1FF368C6677.
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