Re: Expose max_align_t unconditionally

[Joerg Sonnenberger <joerg%bec.de@localhost>]

On Mon, Mar 09, 2020 at 08:05:41PM +0100, Martin Husemann wrote:
> On Mon, Mar 09, 2020 at 02:49:23PM -0400, Greg Troxel wrote:
> > I am not really following the issue, but I don't understand why what the
> > default C++ sublanguage is matters.  It would seem that behavior should
> > be correct for any --std passed to compilers, per that sublanguages's
> > specification, and what you get by default is just what happens to you
> > if you don't pass --std.  (And I basically think a  build that does not
> > pass an explicit --std is buggy, but that's a separate issue.)
> 
> The problem is that this c++ lib does not support compiling with -std=
> for standards < C++11 (IIUC).

This isn't even true. libc++ generally tries to provide a working C++03
implementation, but assumes partial C++11 support for ABI reasons.

Joerg