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From: | Peter O'Gorman |
Subject: | Re: uint64_t fails with C++ |
Date: | Wed, 07 Dec 2011 15:04:58 -0600 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.22) Gecko/20110906 Fedora/3.1.14-1.fc14 Thunderbird/3.1.14 |
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
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