Re: [HACKERS] Autoconf'd test for int64

> Attached is a patch that uses autoconf to determine whether there is
> a working 64-bit-int type available.

Using autoconf for things sounds great. I've been relying on scrappy for
that stuff, and find it a mystery myself. Marc or someone, would you be
willing to write a few sentences on how to make incremental changes to
the Postgres autoconfig system? I'll put it into the Developer's Guide,
and could make a stab at using it elsewhere.

> In playing around with it on my machine, I found that gcc provides
> perfectly fine support for "long long" arithmetic ... but sprintf()
> and sscanf(), which are system-supplied, don't work :-(. So the
> autoconf test program does a cursory test on them too.

Sorry to hear the formatting routines are broken. sprintf() and sscanf()
are HP supplied? Doesn't gcc have its own library also??

> If we find that a lot of systems are like this, it might be worth
> the trouble to implement binary<->ASCII conversion of int64 ourselves
> rather than relying on sprintf/sscanf to handle the data type.

Yuck. Whaddya mean "we"; *my* system works fine :)

- Tom