On 11 Oct 2008, at 17:56, Lukas Gradl wrote:

No - illegally is not an option. Emulating would only be possible if there's a apple-supported way...

Apple currently only allows virtualising Mac OS X Server on top of Mac OS X Server, afaik.

What about FPC? When developing on a 10.5-System, does it need special care to support older 10.x ones?

Either use the Xcode IDE and have it take care of everything (after you tell it what the earliest Mac OS X release is that you wish to support), or manually use 1) -XR/Developer/SDKs/MacOSX10.4u.sdk (or similar) to specify the SDK to link against 2) -k"-macosx_version_min 10.4" (or similar) to tell the linker with which earliest major OS release the binaries should be compatible (they're then also compatible with later OS releases, but e.g. x86 and all 64 bit binaries using some 10.5 features do not run on 10.4)


Jonas
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