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. > > > > On Apr 10, 2008, at 5:31 PM, Clark Cox wrote: > > > > Are you sure that you have to use the 10.4 SDK? Just use the 10.5 SDK, > > but set the deployment target to 10.4 for your 32-bit architectures. > > > > Alternatively, you could probably use different SDK's for different > > architectures. Your i386 and/or ppc builds can use the 10.4 SDK, while > > your x86_64 and/or ppc64 builds can use the 10.5 SDK. > > > > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/clarkcox3%40gmail.com > > This email sent to [EMAIL PROTECTED] > -- Clark S. Cox III [EMAIL PROTECTED] _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
