[cfe-dev] Forwards/backwards compatibility of libc++ on Mac OS X

[Douglas Gregor]

On Jul 27, 2012, at 6:27 AM, "Dallman, John" <john.dallman at siemens.com> wrote:

> I have Xcode 4.1 with Clang 2.1 on Mac OS X 10.7, and Xcode 4.4 with Clang 4.0 on
> Mac OS X 10.8. Both OSes have a /usr/lib/libc++.1.dylib run-time provided.
> 
> Are those run-times compatible? In particular, is building C++ with Clang 4.0 on
> 10.8 and running the resulting program on 10.7 with that older libc++.1.dylib
> supported?

Yes, this is supported by Apple.