How do I determine the target architecture of static library (.a) on Mac OS X?

Question

I\'m interested in verifying if a given iPhone static library has been built for ARM or Intel.

It\'s more curiosity than anything. Is there some kind of Mac OS X o

Answer 1

file will probably tell you. otool certainly should be able to. But I'd try file first, e.g.

logan:/Users/logan% file d2
d2: Mach-O executable ppc

Example with archive:

logan:/Users/logan% file /usr/lib/libMallocDebug.a
/usr/lib/libMallocDebug.a: Mach-O universal binary with 2 architectures
/usr/lib/libMallocDebug.a (for architecture i386):      current ar archive random library
/usr/lib/libMallocDebug.a (for architecture ppc):       current ar archive