Re: Once more, C++11 and older 'base' compilers

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

On Sat, Aug 12, 2017 at 08:38:50AM -0500, Jason Bacon wrote:
> On 08/09/17 17:27, coypu%sdf.org@localhost wrote:
> > On Wed, Aug 09, 2017 at 01:11:38PM -0500, Jason Bacon wrote:
> > > Can you clarify how _TARGET_HAS_PKGSRC_GCC gets set?  Is this built into the
> > > bootstrap scripts and set globally for selected OSs and ARCHs?  Can users
> > > add it to mk.conf for other platforms?
> > I wanted to whitelist platforms. linux is diverse, but often very well supported.
> > For all others we can say yes/no with certainty after testing.
> > 
> > > How do gcc48 and dependencies get exempted so they can build with the system
> > > compiler?
> > With this exception (should possibly be a wildcard for 5,6,7?)
> > 
> > #  Special case packages which are themselves a dependency of gcc runtime.
> > .  if empty(PKGPATH:Mdevel/libtool-base) && empty(PKGPATH:Mdevel/binutils) && empty(PKGPATH:Mlang/gcc??)
> 
> FYI, this is the minimum I had to do on CentOS 6 to avoid a circular
> dependency:

Please use the gcc-inplace-math option. That should cut out most of that
list.

Joerg