C++11 on Mountain Lion and lower?

[Clemens Lang]

On Wed, Dec 04, 2013 at 12:48:13PM +0100, Titus von Boxberg wrote:
> libc++ is available since 10.7. clang is available from Apple way
> before Xcode 5.
> 
> It's just that the libc++ of 10.9 and clang of Xcode 5 are the first
> versions by Apple that have had a chance to use the clang/libc++ that
> has (or claims to have) full C++11 support (actually, I don't know if
> that's really the case since I don't have 10.9/Xcode 5).
> 
> When sticking to C++03 or at most the subset of C++11 that had already
> been implemented when 10.7.x shipped (which most ports currently do, I
> think), macports should work with libc++ on the three most recent OSX
> versions.

But if we're not going to use the default C++ runtime on these older
systems anyway, we could just port a recent version of libc++ with full
C++11 support and use that on these systems? That would avoid the
potential brokenness of some C++11 features in libc++ on <= 10.8. Or am
I mistaken here?

-- 
Clemens Lang