Re: [CentOS] Trying to find gcc 5

2020-12-04 Thread Kay Diederichs
On 12/4/20 1:26 AM, mark wrote:
> Hi, folks,
> 
>    It seems I can't run a version of calibre newer than 3.23 without at least 
> one library from gcc-5 (and the calibre attitude seems to be "screw you, 4's 
> ancient, move to another distro").
> 
>    I've added the scl repo - what devtoolset do I need to install?
> 
> mark

try

yum install devtoolset-4-gcc

HTH,
Kay

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Re: [CentOS] Trying to find gcc 5

2020-12-04 Thread Valeri Galtsev



On 12/4/20 1:06 PM, Warren Young wrote:

On Dec 3, 2020, at 5:26 PM, mark  wrote:


4's ancient, move to another distro"


Do you mean GCC 4.8.5 from CentOS 7, or GCC 4.47 from CentOS 6, or GCC 4.2.1 
from CentOS 5?

If we’re talking about CentOS 6, then even Red Hat agrees with the Calibre 
folks: it’s now officially past time to get off CentOS 6, as of last week.  
CentOS 5?  That and 3-4 years gone now.

If you’re speaking of CentOS 7, then we’re talking about a 5-year-old compiler, 
which I wouldn’t call “ancient,” but I’m not surprised that pre-built 
unofficial binaries aren’t targeting it any more, either.

A key pillar of the 10 year support value proposition is that the providers of 
the toolchains will be building new ancillary packages for you with those 
tools, but that only applies for packages in the distro.  I don’t see how you 
can expect that non-Red Hat organizations would be constrained in the same way. 
They didn’t agree to that deal.

I suggesting that you build Calibre yourself, or find someone who has done so 
atop CentOS 7.

Beware: the most recent major release of Calibre also requires Python 3.  They 
finally cut off all Python 2 support.

Alternately, upgrade to CentOS 8, which uses GCC 8.


I 100% agree with Warren.

When my users really want newer compiler on "not the latest" CentOS 
(say, they need c++11 features), I just download gcc version that 
satisfies them, compile, and install it into separate place, like, e.g., 
/usr/local/gcc620. And that makes them happy.


I hope, this helps.

Valeri


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--

Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247

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Re: [CentOS] Trying to find gcc 5

2020-12-04 Thread Warren Young
On Dec 3, 2020, at 5:26 PM, mark  wrote:
> 
> 4's ancient, move to another distro"

Do you mean GCC 4.8.5 from CentOS 7, or GCC 4.47 from CentOS 6, or GCC 4.2.1 
from CentOS 5?

If we’re talking about CentOS 6, then even Red Hat agrees with the Calibre 
folks: it’s now officially past time to get off CentOS 6, as of last week.  
CentOS 5?  That and 3-4 years gone now.

If you’re speaking of CentOS 7, then we’re talking about a 5-year-old compiler, 
which I wouldn’t call “ancient,” but I’m not surprised that pre-built 
unofficial binaries aren’t targeting it any more, either.

A key pillar of the 10 year support value proposition is that the providers of 
the toolchains will be building new ancillary packages for you with those 
tools, but that only applies for packages in the distro.  I don’t see how you 
can expect that non-Red Hat organizations would be constrained in the same way. 
They didn’t agree to that deal.

I suggesting that you build Calibre yourself, or find someone who has done so 
atop CentOS 7.

Beware: the most recent major release of Calibre also requires Python 3.  They 
finally cut off all Python 2 support.

Alternately, upgrade to CentOS 8, which uses GCC 8.
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Re: [CentOS] ntpdate past CentOS 7

2020-12-04 Thread Brian Reichert
On Thu, Dec 03, 2020 at 07:06:25AM +, J Martin Rushton via CentOS wrote:
> On 02/12/2020 23:32, Brian Reichert wrote:
> >On Wed, Dec 02, 2020 at 02:17:04PM -0500, Jerry Geis wrote:
> >>So ntpdate is no longer present past CentOS 7.
> >
> >What's wrong with the 'ntpdate' RPM?
> >
> >https://centos.pkgs.org/7/centos-x86_64/ntpdate-4.2.6p5-29.el7.centos.2.x86_64.rpm.html
> 
> What's wrong is that you've quoted the CentOS7 RPM, not the CentOS8 one 
> (which doesn't exist).  The OP was asking about ntpdate "past CentOS 7".

I apologize for misreading the subject.

-- 
Brian Reichert  
BSD admin/developer at large
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