Brad Roberts wrote:
Michel Fortin wrote:
On 2009-02-27 16:37:13 -0500, Jacob Carlborg <[email protected]> said:

Nick Sabalausky wrote:
Ordinarily, I detest the idea of pulling support for anything as
recent as just a few years old. But Apple themselves has a habit of
ignoring users of anything except the latest version, so I would
think that mac users would be accustomed to the old routine of their
OS becoming a deadend the moment a new version comes out. So, in this
case, I would think that there may actually be justification in
sticking with 10.5+, if you were to so choose.
I would not completely agree with you on this. When you install the
developer tools on osx 10.5 it installs SDKs for 10.5 and 10.4 as
default, but you can also choose to install support for older
versions. I'm not sure if it's only for 10.3 or also for 10.2.
On Mac OS X 10.5, you can compile for 10.3 using Xcode 3, and 10.2 using
Xcode 2.5 (Xcode 2.5 for Leopard is a free download). Of course, 10.2
and 10.3 being PowerPC-only, there's no point trying to compile DMD for
them.

You can do that if and only if you don't require newer apis.  If you've
been reading this thread, you know that the runtime uses the posix
thread apis and those are supported less and less well as you go back in
time.  The ability to support the old versions isn't some magic wand
that conjures up new features into those old releases.

Later,
Brad


I was just trying to say that in some cases they do support older systems. I can agree with you that they could support older systems better by updating apis and similar. But somewhere you have to draw a line, if every new api and feature should be available in an older system then what's the point with a new system.

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