Re: Determine Application Architecture

FROM : Sherm Pendley
DATE : Mon Jul 24 19:56:07 2006

On Jul 24, 2006, at 1:50 PM, Thom McGrath wrote:

> I don't mean for the running application, I mean for an application 
> whose path I specify. I remember reading about a command-line tool 
> that can do this, but cannot find it anywhere. So how do I go about 
> detecting which chip architectures an application will run on?
>
> In case I'm being too ambiguous, I mean Intel/PPC/Universal.


The "lipo" tool is most often used to create Universal Binaries, but 
it also has an -info option:

Sherm-Pendleys-Computer:~ sherm$ lipo Applications/Aquamacs\ 
Emacs.app/Contents/MacOS/Aquamacs\ Emacs -info
Architectures in the fat file: Applications/Aquamacs Emacs.app/
Contents/MacOS/Aquamacs Emacs are: i386 ppc

The "file" command-line tool will also do this. For instance:

Sherm-Pendleys-Computer:~ sherm$ file Applications/Aquamacs\ 
Emacs.app/Contents/MacOS/Aquamacs\ Emacs
Applications/Aquamacs Emacs.app/Contents/MacOS/Aquamacs Emacs: Mach-O 
fat file with 2 architectures
Applications/Aquamacs Emacs.app/Contents/MacOS/Aquamacs Emacs (for 
architecture i386):  Mach-O executable i386
Applications/Aquamacs Emacs.app/Contents/MacOS/Aquamacs Emacs (for 
architecture ppc):  Mach-O executable ppc

sherm--

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