$  file /System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a
/System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a: Mach-O universal binary with 4 architectures
/System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a (for architecture ppc):      current ar archive random library
/System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a (for architecture ppc64):    current ar archive random library
/System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a (for architecture i386):     current ar archive random library
/System/Library/Perl/5.8.8/darwin-thread-multi-2level/auto/DynaLoader/DynaLoader.a (for architecture x86_64):   current ar archive random library


$ file snmplib/.libs/*.a
snmplib/.libs/libnetsnmp.a: current ar archive random library

$ file snmplib/.libs/*dylib
snmplib/.libs/libnetsnmp.20.0.0.dylib: Mach-O dynamically linked shared library ppc
snmplib/.libs/libnetsnmp.20.dylib:     Mach-O dynamically linked shared library ppc
snmplib/.libs/libnetsnmp.dylib:        Mach-O dynamically linked shared library ppc