How to force a 32-bit/64-bit universal app to start in 32-bit mode on Leopard?
How to force a 32-bit/64-bit universal app to start in 32-bit mode on Leopard?
- Subject: How to force a 32-bit/64-bit universal app to start in 32-bit mode on Leopard?
- From: Oleg Krupnov <email@hidden>
- Date: Thu, 8 Apr 2010 07:21:42 -0700
Hi,
While it's good for my app to run in 64-bit mode on Snow Leopard, it
turns out not desirable on Leopard, because of the delay of loading
all 64-bit frameworks (in case if my app is the first 64-bit app
launched after system boot). It literally makes me wait for about ten
seconds, and the performance gain of my app in 64-bit mode is
definitely not worth it on Leopard.
My app is assembled as a universal binary that supports 3
architectures: 32-bit intel, 32-bit ppc and 64-bit intel. Obviously,
the system chooses the best architecture it can run, which is 64-bit
intel in case of Leopard.
Is there a way to change that and force my app to run in 32 bit mode on Leopard?
I would hate to have to supply two versions, one for Leopard and
another one for Snow Leopard.
Thanks!
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