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Date: Wed, 27 Jan 2010 21:12:43 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
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Subject: [Qemu-devel] Re: [PATCHv2] configure: verify stdio.h
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To: Stefan Weil <weil@mail.berlios.de>
Cc: qemu-devel@nongnu.org, Juan Quintela <quintela@trasno.org>

On Wed, Jan 27, 2010 at 08:02:26PM +0100, Stefan Weil wrote:
> Michael S. Tsirkin schrieb:
> > On Tue, Jan 26, 2010 at 10:44:44PM +0100, Stefan Weil wrote:
> >> Michael S. Tsirkin schrieb:
> >>> Verify that stdio.h supports %lld %zd.
> >>> Some migw variants don't unless requested explicitly (see
> >> migw -> mingw
> >>
> >> I don't know any ming32 variant which supports %lld, %zd.
> >> There is a new mingw-w64 were people are addressing the
> >> problem,
> >
> > Did you try with -D__USE_MINGW_ANSI_STDIO=1 ?
> > This is what the link below mentions.
> 
> 
> New information on this issue:
> 
> mingw-runtime 3.15 (2008-09-07) added support for
> standard format conversion:
> 
> http://sourceforge.net/project/shownotes.php?release_id=24832
> 
> The release note also says how to select MS or C99/POSIX
> format strings.
> 
> Debian still does not include that version:
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498529
> 
> Maybe someone knows how we can help to get the new release
> for debian. It's needed for cross compilation (at least for
> users who don't want to install it manually).

Heh, configure script runs the program it's built
in a couple of places. This probably does not
work for cross-builds:

	if compile_prog "" "" ; then
	$TMPE && bigendian="yes"
	else
	echo big/little test failed
	fi

likely works by luck for build to intel, because error
is interpreted as little-endian.

> >
> >> but that variant is unsupported by qemu.
> >
> > What are the issues?
> >
> 
> Good question. I don't know because I did not try it.
> It was only a guess that qemu would not work with
> mingw-w64 without modifications.