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Date: Mon, 19 Dec 2005 23:35:35 +0100
From: Fabrice Bellard <fabrice@bellard.org>
Subject: Re: [Qemu-devel] [PATCH] support for Mac OS X default compiler
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To: qemu-devel@nongnu.org

Does -fno-tree-ch works on PC ?

Fabrice.

Joachim Henke wrote:
> I know that you have already discussed this on the list, and that you don't
> want to actively support GCC 4. But (at least on Mac OS X) only a fix in
> the build configuration is necessary to do the magic: op.c must be compiled
> with -fno-tree-ch (as already mentioned on this mailing list).
> 
> GCC 4.0 is the default compiler since Mac OS 10.4 (Tiger). Apple still
> ships GCC 3.3 20030304 with Xcode 2.2, but doesn't seem to update it
> anymore. As the thread
> http://lists.gnu.org/archive/html/qemu-devel/2005-12/msg00077.html
> turned out, this old compiler has some obvious bugs (further bugs have been
> reported on the web - even with code that is less complex than QEMU).
> 
> So why not support GCC 4 out of the box? The patch below does this, and
> should not hurt anybody. Users are still required to pass
> --disable-gcc-check to the configure script - but if they do, GCC 4 will
> get it's right command line options.
> 
> I tested this with GCC 4.0.1 from Xcode 2.2, and all six softmmu targets
> were build without errors. Maybe it works on Linux PPC too?
> 
> Would be nice, if you could apply this patch. It makes testing and building
> with GCC 4 easier.
> 
> Best regards
> Jo.