Building for different version and/or SDK

[Joshua Root]

On 28164-7-23 05:59 , Harry van der Wolf wrote:
> Hi,
> 
> I did read posts about this but can't find them back. Sorry if I raise the
> question again.
> 
> 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 is implemented more sanely, but is still completely unsupported, in
1.9.0+. Just set macosx_deployment_target to whatever version you want
(e.g. "10.5") in macports.conf. Base will then set
MACOSX_DEPLOYMENT_TARGET in the environment (which is equivalent to
-mmacosx-version-min in CFLAGS) and set configure.sdkroot to the
appropriate SDK, which ends up as "-isysroot foo" in CFLAGS/CPPFLAGS etc.

- Josh