[llvm-dev] Using C++14 code in LLVM

[Antoine Pitrou via llvm-dev]

On Mon, 3 Oct 2016 09:30:08 +0200
serge guelton via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> On Mon, Oct 03, 2016 at 09:04:15AM +0200, Joerg Sonnenberger via llvm-dev wrote:
> > On Sun, Oct 02, 2016 at 11:09:08PM +0000, Zachary Turner via llvm-dev wrote:  
> > > The BSDs don't seem as much of an issue.  FreeBSD 10 and 11 both have LLVM
> > > 3.9 and GCC 4.9.  NetBSD 6.1.5 and 7.0 both have GCC 5.3 and LLVM 3.8.
> > > Open BSD has a very old GCC, but distrowatch claims that it also has LLVM
> > > 3.8.  
> > 
> > NetBSD 6.1.5 has GCC 4.5 in base, 7.0 has 4.8. Clang is not included the
> > default for either.  
> 
> Another feedback from a downstream user: in order to build our
> llvm-based compiler once and have it run on a large variety of Linux
> machines, we're using ubuntu trusty as build environment, which has
> the nice property of using a rather old GLIBC version. Ubuntu trusty
> ships by default with g++-4.8.

We use CentOS 5 for the same reason.  The compiler is gcc 4.8.2, coming
from the Developer Toolset 2.

Bumping C++ requirements to C++14 may force us to switch our build
machine to CentOS 6, and abandon support for users of older versions of
RHEL and CentOS.

Regards

Antoine.