From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: libxl build errors in xen-unstable
Date: Tue, 31 May 2011 12:36:33 +0200
Message-ID: <20110531103632.GA30579@aepfle.de>
References: <20110530163326.GA24266@aepfle.de>
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To: Ian Campbell <Ian.Campbell@citrix.com>
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On Tue, May 31, Ian Campbell wrote:

> On Mon, 2011-05-30 at 17:33 +0100, Olaf Hering wrote:
> > There are new build errors in xen-unstable since revision 23368.
> > Wether the _libxl_paths.h.tmp/_libxl_paths.h errros/warnings are new, no
> > idea.
> [...]
> > cmp: _libxl_paths.h.tmp: No such file or directory
> > sed -e "s/\([^=]*\)=\(.*\)/#define \1 \2/g" _libxl_paths.h.tmp >_libxl_paths.h.2.tmp
> > if ! cmp _libxl_paths.h.2.tmp _libxl_paths.h; then mv -f _libxl_paths.h.2.tmp _libxl_paths.h; fi
> > Parsing libxl.idl
> > cmp: _libxl_paths.h: No such file or directory
> 
> Presumably this also yields the correct return code to cause the mv to
> happen, so you do end up with a _libxl_paths.h with stuff in it?

Ian,

this is an automated build, I just have that log.


> [...]
> > libxl_exec.c:48: error: ignoring return value of 'atoi', declared with attribute warn_unused_result
> [...]
> > libxl_exec.c:224: error: ignoring return value of 'write', declared with attribute warn_unused_result
> [...]
> > libxl_device.c:488: error: ignoring return value of 'read', declared with attribute warn_unused_result
> 
> Has someone got a bit carried away with the warn_unused_result attribute
> in your distro/gcc/libc/etc? Applying that sort of attribute system wide
> to such widespread functions seems like... trouble...

This is SLES11SP1. The applied attribute is not new.

Olaf