If your requirements are such that your application will have to
run back to 10.3 on PowerPC-based Macintoshes, you'll have to build
your PowerPC binary against the 10.3 SDK, the Intel binary against
the 10.4 SDK, and then lipo the two halves together.
It's also possible to specify a per-platform SDK in your build
settings by defining SDKROOT_ppc and SDKROOT_i386 in your Xcode
project (or target) build settings. This is a lot less of a hassle
than creating extra build steps to lipo your binaries together.
You may also have to fiddle with these settings, depending on your
project:
GCC_VERSION_i386
GCC_VERSION_ppc
MACOSX_DEPLOYMENT_TARGET_i386
MACOSX_DEPLOYMENT_TARGET_ppc
-Allan
--
Allan Hsu <allan at counterpop dot net>
1E64 E20F 34D9 CBA7 1300 1457 AC37 CBBB 0E92 C779
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