This is great to hear, thanks a lot for the info. Got the build done,
just need to test on the Core 2 when I get to work.
On Apr 11, 2008, at 1:39 AM, Clark Cox wrote:
On Thu, Apr 10, 2008 at 10:22 PM, Michael Vannorsdel <[EMAIL PROTECTED]
> wrote:
Indeed I can do that. This brings up another question; since
frameworks and
libs didn't have much 64 bit support in 10.4, is it possible for a
fat
binary to load the 64 bit image on 10.5 and 32 bit on 10.4?
Perhaps with
some Info.plist settings. My instinct says no; 64 bit image will
be used on
all 64 bit archs regardless of sys version.
Your instinct is, fortunately, wrong in this case.
From <http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/building/chapter_5_section_4.html
>:
"To prevent new 64-bit executables from running as 64-bit on version
10.4, Apple changed the CPU subtype for 64-bit executables that depend
on high-level frameworks."
That is, if the 64-bit slices of your application depend on Cocoa,
they will be ignored on Tiger and earlier. Just make sure that the
deployment target of your 64-bit slices is set to 10.5.
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