[Development] HEADS UP: OSX build requirements for 5.7

[Thiago Macieira]

On quinta-feira, 11 de fevereiro de 2016 02:02:27 PST Tim Blechmann wrote:
> we have seen funny toolchain bugs, with 10.10 sdk and 10.8 deployment
> target on 10.8, where std::exceptions could not be caught ... compiling
> against 10.8 sdk solved that issue.

Regardless of whether that is a valid approach or not, the fact that people 
are doing that poses a problem for us. If we write code against the latest 
toolchain, it may not compile against older ones people might be using.

That can be because we used new features that aren't present in older ones, 
even if properly runtime checked.

Another problem is that the compilers in the old toolchains are older, with 
older libc++ and with bugs that we aren't testing for.

If we're going to upgrade our Xcode in all our builds, I would advise we also 
make it mandatory for everyone else too. Check during configure against the 
minimum SDK version, that being the *current* at the time of release.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center