/private/tmp/libzzip-MS8k/zziplib-0.13.62/uses/missing: line 54: aclocal-1.11: command not found WARNING: `aclocal-1.11' is missing on your system. You should only need it if you modified `acinclude.m4' or `configure.in'. You might want to install the `Automake' and `Perl' packages. Grab them from any GNU archive site. ld: warning: in /usr/local/lib/libz.dylib, file was built for i386 which is not the architecture being linked (x86_64) ld: warning: in /usr/local/lib/libz.dylib, file was built for i386 which is not the architecture being linked (x86_64) ld: warning: in /usr/local/lib/libz.dylib, file was built for i386 which is not the architecture being linked (x86_64) ld: warning: in /usr/local/lib/libz.dylib, file was built for i386 which is not the architecture being linked (x86_64) Undefined symbols: "_crc32", referenced from: _zzip_mem_entry_test in unzip-mem.o ld: symbol(s) not found collect2: ld returned 1 exit status make[2]: *** [unzip-mem] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [install-recursive] Error 1 make: *** [install] Error