Re: [boost] GCC versions

Subject: Re: [boost] GCC versions
From: Roger Leigh (rleigh_at_[hidden])
Date: 2018-05-28 15:31:30

On 27/05/2018 14:54, Ian Emmons via Boost wrote:
> Apologies if this is off topic, but the audience here is perfect for this question:
> 
> I need to support CentOS version 7 with my C++ software.  The version of GCC that is supported out-of-the-box on that version of Linux is rather old -- it supports C++11, but not C++14, and of course I would like to use a newer standard.
> 
> Is it common practice on Linux to install a later version of GCC than the out-of-the-box on version?  If so, how do you handle the run-time shared library dependencies?  Any pointers would be helpful.

Replying off-list since it was deemed off-topic.

Install "devtoolset-7" from software collections 
(https://www.softwarecollections.org/en/scls/rhscl/devtoolset-7/)

Enable it with e.g. ". /opt/rh/devtoolset-7/enable" and you have a new 
gcc/g++ etc. on your PATH.

Then build a current Boost with it.  Devtoolset uses static linking of 
libstdc++ so it will continue to be ABI compatible with the base system 
and its libstdc++ but will include new bits from the static copy.  Avoid 
trouble by using system copies of libraries rather than building a 
second copy.

I would suggest searching for and reading around existing discussion of 
devtoolset-7 (and the older devtoolset-4) to get some ideas about the 
tradeoffs it makes.  It will get you an up to date C++14 compiler.

Regards,
Roger