Re: [PATCH 0/2] Multi-threaded RPM support

From: "Davis, Michael" <michael.davis@essvote.com>
To: Alexander Kanavin <alexander.kanavin@linux.intel.com>,
	Joshua Lock <joshua.g.lock@linux.intel.com>,
	Richard Purdie <richard.purdie@linuxfoundation.org>,
	"openembedded-core@lists.openembedded.org"
	<openembedded-core@lists.openembedded.org>,
	Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
Subject: Re: [PATCH 0/2] Multi-threaded RPM support
Date: Mon, 5 Jun 2017 13:47:59 +0000	[thread overview]
Message-ID: <655290B7709079438B7932553958E60DA1310D09@ESS-EX01.essvote.corp.local> (raw)
In-Reply-To: <c247784f-f822-9193-c3cd-650ec9581af4@linux.intel.com>

I just wanted to note that in my quest to get newer chrome to build I have used centos7 with the official devtoolset-6 scl.
It was able to build my pyro based distro fine in gcc6.  So Centos7 has an officially supported path that may be viable if it comes down to being the last gcc 4.x distro.

-----Original Message-----
From: openembedded-core-bounces@lists.openembedded.org [mailto:openembedded-core-bounces@lists.openembedded.org] On Behalf Of Alexander Kanavin
Sent: Monday, June 05, 2017 8:35 AM
To: Joshua Lock; Richard Purdie; openembedded-core@lists.openembedded.org; Leonardo Sandoval
Subject: Re: [OE-core] [PATCH 0/2] Multi-threaded RPM support

On 06/05/2017 04:21 PM, Joshua Lock wrote:

> On the Yocto Autobuilder clusters we have:
> * centos7 / gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
> * debian8 / gcc (Debian 4.9.2-10) 4.9.2
> * debian-testing / gcc (Debian 6.3.0-14) 6.3.0 20170415
> * fedora24 / gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
> * fedora25 / gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
> * opensuse132 / gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch
> revision 212064]
> * opensuse422 / gcc (SUSE Linux) 4.8.5
> * ubuntu1604 / gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> * ubuntu1610 / gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
>
> We are aiming to replace openSUSE 13.2 (as it was discontinued in
> January of this year) but CentOS 7 has a good long lifetime ahead of
> it, therefore supporting it and RHEL 7 will require gcc 4.8.5 support.

Thanks; in that case using atomic types and other C11 features is not 
possible at all for quite some time, and openmp support, while 
available, is restricted to version 3.1 of the spec (which should be 
just about enough - earlier versions do not have task support).

I actually have gcc 4.8 here (on debian testing, which will become 
debian 9 in a couple of weeks), even though the default version is 6.3, 
so I can test 4.8 compatibility locally.

Alex
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