> make
ld: warning: in ./libmsgpackc_ext.a, file was built for unsupported file format which is not the architecture being linked (i386)

> console log errors
dyld: lazy symbol binding failed: Symbol not found: _msgpack_unpack_next
  Referenced from: /Users/tbd/Desktop/github/rbtrace/ext/rbtrace.bundle
  Expected in: flat namespace
dyld: Symbol not found: _msgpack_unpack_next
  Referenced from: /Users/tbd/Desktop/github/rbtrace/ext/rbtrace.bundle
  Expected in: flat namespace