Building for different version and/or SDK

[Ryan Schmidt]

On Sep 8, 2010, at 02:17, Harry van der Wolf wrote:

> In previous versions of macports it was possible to specify an SDK and a "macosx-version-min" (-mmacosx-version-min from CFLAGS).
> When switching from Leopard to Snow Leopard about 6 weeks ago I completely wiped out my /opt to make a clean start so I can't find it from my old macports.conf as well.
> 
> Can I still specify an SDK to be used, e.g. 10.5 or 10.6? (10.5 for building without vdpau which isn't avalaible on Leopard)
> And more important: Can I specify the "macosx-version-min" or what the variable was called.
> I read something that it was removed from 1.9.1 and would return in 1.9.2?
> 
> I build bundles based on macports and now from Snow Leopard I would like to build for Leopard as well.

This feature was removed from MacPorts some time ago. It might return later, but IMHO it did not work well for many ports and was more trouble than it was worth. Ports packaged on Mac OS X version 10.X are only designed to work on that Mac OS X version 10.X; if you want to run on Mac OS X version 10.Y, build the ports on Mac OS X version 10.Y.

You *might* have success building on an earlier Mac OS X and running on a later Mac OS X (though even this is not guaranteed to work and certainly is not supported by us). You probably will not have success building on a later Mac OS X and running on an earlier Mac OS X.