boost port file does not properly include isysroot

[Joshua Root]

On 2012-1-31 09:30 , James Gregurich wrote:
> I gave you guys a complete working prototype that had support for clang, customization of  universal binary architectures, and the comprehensive ability to target different SDKs. I had 5 or 6 ports (including complex ones such as boost) building simultaneously for MacOSX and iOS as universal binaries on both. 
> 
> only one person ever cared enough to look at it.

JFYI, a complete working prototype is about the least convenient form
you could provide contributions in. If you want to give your work the
best chance of being merged, generate a diff of the source tree and
attach it to a ticket.

If it takes some work to even figure out which files you modified, it's
not surprising that anyone who isn't that interested in the feature to
begin with just isn't going to bother.

- Josh