gmp_snprintf tries to allocate 18 EB on long strings

[Niels Möller]

"Marco Bodrato" <bodrato at mail.dm.unipi.it> writes:

> I think we should change that code completely, calling the library
> vsnprintf just once and trusting the result. It will break compatibility
> with glibc 2.0.x, but we should not care of this any more, right?

I think we should be able to rely on C99 vsnprintf. If need, check for
correct behavior in configure, and fall back to repl_vsnprintf if
snprintf exhibits non-standard behavior.

Regards,
/Niels

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