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From: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] 	Re: [PATCH] mingw32: Fix definitions for PRId64, PRIx64,	PRIu64, PRIo64
Date: Mon, 31 Jan 2011 10:39:53 +0000	[thread overview]
Message-ID: <4D469179.9080705@siriusit.co.uk> (raw)
In-Reply-To: <AANLkTi=9SXp4QqAtW2p9hRzRqK8htrKx-GPWy_HAegsY@mail.gmail.com>

On 30/01/11 22:14, Blue Swirl wrote:

> Well, mine doesn't. The change was introduced in mingw-runtime 3.15,
> which was released in September 2008, but Debian still hasn't updated
> from 3.13. Maybe other distros are not so lagging and someone who
> wishes to build QEMU on Windows is not pampered with distro support
> for MinGW anyway. Perhaps a configure time check should be added?

FWIW anyone using MingW now should be using the new GCC 4.5 based builds 
with the associated runtime rather than anything that old. I suspect 
most people using MingW for anything serious will be doing this already.

I think adding the configure check would be the best solution here.

>> QEMU defines __USE_MINGW_ANSI_STDIO, and __mingw_vfprintf
>> understands C9x standard length specifiers.

> BTW, MinGW FAQ page http://www.mingw.org/wiki/FAQ still mentions that
> %ll formats are not supported.

Since MingW uses the MSVCRT then by default it won't accept %ll, but my 
understanding is that Stefan is correct, i.e. defining 
__USE_MINGW_ANSI_STDIO causes MingW to use an internal 
standards-compliant implementation instead of the in-built MSVCRT 
version that *does* understand these extras.


HTH,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063

Sirius Labs: http://www.siriusit.co.uk/labs

  reply	other threads:[~2011-01-31 10:40 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-04 19:41 [Qemu-devel] [PATCH] mingw32: Fix definitions for PRId64, PRIx64, PRIu64, PRIo64 Stefan Weil
2011-01-30 21:27 ` [Qemu-devel] " Stefan Weil
2011-01-30 21:39   ` Blue Swirl
2011-01-30 21:50     ` Stefan Weil
2011-01-30 22:14       ` Blue Swirl
2011-01-31 10:39         ` Mark Cave-Ayland [this message]
2011-01-31 17:25         ` Stefan Weil

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