Mac OS X 10.5 support

[Walter Bright]

On 2/13/2012 11:50 AM, Sönke Ludwig wrote:
> So either the problem is just a build setup issue or it was something I
> didn't test (I tested writefln() as in bug 4854). Is there a standard
> way to build the DMD+druntime+phobos package so I can simulate the
> original build process? Right now I just compiled each of those
> separately using "make posix.mk" without any further options.

make posix.mak is the way.

> Minor note: the version check in dmd/source/posix.mk to select the OS X
> SDK does not work on 10.5 and it selects the 10.6 SDK.

Please post a patch for that, and I'll merge it in.