Target oldest supported OS by default

[Jacob Carlborg]

On 2013-01-10 22:13, Walter Bright wrote:

> Presumably there is some reason why this is not the default behavior of
> the linker. Some performance problem, maybe?

I don't know. I've got the impression that, at least the tools by Apple, 
target by default the same system you're building on. I general Apple 
wants you to run their latest software.

-- 
/Jacob Carlborg