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Re: [Qemu-devel] [PATCH v5 0/4] configure: clang 3.5.0 build fixes


From: John Snow
Subject: Re: [Qemu-devel] [PATCH v5 0/4] configure: clang 3.5.0 build fixes
Date: Tue, 28 Apr 2015 15:33:47 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0



On 04/28/2015 03:32 PM, John Snow wrote:
On 03/30/2015 11:10 AM, Stefan Hajnoczi wrote:
On Wed, Mar 25, 2015 at 06:57:35PM -0400, John Snow wrote:
QEMU does not compile cleanly under clang 3.5.0.  These patches
eliminate the
avalanche of warnings and make the build usable.

The result is that you *should* be able to use clang 3.5.0 *with*
ccache and
-Werror and produce all targets.

Regrettably, this is v5 because I overlooked deleting "--keep-tmpc"
in the
previous version. Sorry mom, I let the homestead down. We'll be
eating dirt
this winter. I can always go to the city for work, please don't cry.

v4:
- Enable ccache workaround for configurations without -Werror,
   to suppress warnings as well.
- Removed optimization from cc_has_warning_flag()
- Renamed ccache variable to ccache_cpp2

John Snow (3):
   configure: factor out supported flag check
   configure: silence glib unknown attribute __alloc_size__
   configure: Add workaround for ccache and clang

Stefan Hajnoczi (1):
   configure: handle clang -nopie argument warning

  configure | 81
++++++++++++++++++++++++++++++++++++++++++++++++++-------------
  1 file changed, 65 insertions(+), 16 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>


ping for 3.4

Actually, I think we can get this in for *2.4*. No need to wait until 2023.

--js



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