Re: uint64_t fails with C++

[Peter O'Gorman]

On 12/07/2011 01:04 PM, Werner LEMBERG wrote:
> > It's nothing to do with autoconf really, configure correctly finds
> > uint64_t, your C program then checks for UINT64_MAX or a uint64_t
> > macro instead of #include<config.h>  and checking for HAVE_UINT64_T.
>
> HAVE_UINT64_T is *not* defined in my<config.h>...

Sorry, my bad. It seems AC_TYPE_UINT64_T will define uint64_t in 
config.h if the system doesn't provide one, so you don't need to do any 
checking at all before using uint64_t, as long as you include config.h. 
I had assumed that it defined HAVE_UINT64_T.

If you do need the UINT64_MAX etc macros as well as the uint64_t type 
then you will have to define __STDC_LIMIT_MACROS.

Peter