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From: "Daniel P. Berrange" <berrange@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-trivial@nongnu.org,
	Paolo Bonzini <pbonzini@redhat.com>,
	patches@linaro.org
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH] Drop QEMU_GNUC_PREREQ() checks for gcc older than 4.1
Date: Tue, 31 Jan 2017 16:55:57 +0000	[thread overview]
Message-ID: <20170131165557.GE20303@redhat.com> (raw)
In-Reply-To: <1485879287-12548-1-git-send-email-peter.maydell@linaro.org>

On Tue, Jan 31, 2017 at 04:14:47PM +0000, Peter Maydell wrote:
> We already require gcc 4.1 or newer (for the atomic
> support), so the fallback codepaths for older gcc
> versions than that are now dead code and we can
> just delete them.

Do we have any explicit check alreadu for 4.1, or do we
just let the build fail on the atomic code ?

IOW, is there any use in having..

#if !QEMU_GNUC_PREREQ(4, 1)
# error "QEMU requires GCC >= 4.1 or CLang"
#endif

Regards,
Daniel
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://entangle-photo.org       -o-    http://search.cpan.org/~danberr/ :|


WARNING: multiple messages have this Message-ID (diff)
From: "Daniel P. Berrange" <berrange@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-trivial@nongnu.org,
	Paolo Bonzini <pbonzini@redhat.com>,
	patches@linaro.org
Subject: Re: [Qemu-devel] [PATCH] Drop QEMU_GNUC_PREREQ() checks for gcc older than 4.1
Date: Tue, 31 Jan 2017 16:55:57 +0000	[thread overview]
Message-ID: <20170131165557.GE20303@redhat.com> (raw)
In-Reply-To: <1485879287-12548-1-git-send-email-peter.maydell@linaro.org>

On Tue, Jan 31, 2017 at 04:14:47PM +0000, Peter Maydell wrote:
> We already require gcc 4.1 or newer (for the atomic
> support), so the fallback codepaths for older gcc
> versions than that are now dead code and we can
> just delete them.

Do we have any explicit check alreadu for 4.1, or do we
just let the build fail on the atomic code ?

IOW, is there any use in having..

#if !QEMU_GNUC_PREREQ(4, 1)
# error "QEMU requires GCC >= 4.1 or CLang"
#endif

Regards,
Daniel
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://entangle-photo.org       -o-    http://search.cpan.org/~danberr/ :|

  reply	other threads:[~2017-01-31 16:56 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-31 16:14 [Qemu-trivial] [PATCH] Drop QEMU_GNUC_PREREQ() checks for gcc older than 4.1 Peter Maydell
2017-01-31 16:14 ` [Qemu-devel] " Peter Maydell
2017-01-31 16:55 ` Daniel P. Berrange [this message]
2017-01-31 16:55   ` Daniel P. Berrange
2017-01-31 16:58   ` [Qemu-trivial] " Peter Maydell
2017-01-31 16:58     ` Peter Maydell
2017-01-31 23:27     ` [Qemu-trivial] " Paolo Bonzini
2017-01-31 23:27       ` Paolo Bonzini
2017-01-31 17:40 ` [Qemu-trivial] " Markus Armbruster
2017-01-31 17:40   ` Markus Armbruster
2017-01-31 18:00   ` [Qemu-trivial] " Peter Maydell
2017-01-31 18:00     ` Peter Maydell
2017-01-31 18:11     ` [Qemu-trivial] " Daniel P. Berrange
2017-01-31 18:11       ` Daniel P. Berrange
2017-01-31 18:32       ` [Qemu-trivial] " Peter Maydell
2017-01-31 18:32         ` Peter Maydell
2017-01-31 19:02         ` [Qemu-trivial] " Markus Armbruster
2017-01-31 19:02           ` Markus Armbruster
2017-01-31 18:58     ` [Qemu-trivial] " Markus Armbruster
2017-01-31 18:58       ` Markus Armbruster
2017-01-31 23:27   ` [Qemu-trivial] " Paolo Bonzini
2017-01-31 23:27     ` Paolo Bonzini
2017-02-01  6:49     ` [Qemu-trivial] " Markus Armbruster
2017-02-01  6:49       ` Markus Armbruster
2017-02-02  1:09       ` [Qemu-trivial] " Paolo Bonzini
2017-02-02  1:09         ` Paolo Bonzini
2017-02-02 10:17         ` [Qemu-trivial] " Markus Armbruster
2017-02-02 10:17           ` Markus Armbruster
2017-04-21  9:08 ` [Qemu-trivial] " Peter Maydell
2017-04-21  9:08   ` Peter Maydell

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