hash of mpz_t and mpq_t

[Hans Åberg]

> On 17 Jun 2021, at 00:12, Torbjörn Granlund <tg at gmplib.org> wrote:
> 
> Hans Åberg <haberg-1 at telia.com> writes:
> 
>>> GMP C++ has several issues: requires a special compile,
> 
>  One needs a special configure option I think, so if a system comes with a default, it will not work.
> 
> Oh, yeah, that is "an issue" with GMP: You need to tell configure what
> you want if it does not happen to be the default already.
> 
> Terrible, really terrible.

Especially on a system where the default is already installed.

So what C++ parts did not fit in a header?