Did a complete reinstall of MRI, after imploding .rvm - a completely clean slate.
gem version displays 1.5.2
ruby version is 1.9.2-p180
Still getting the same errors on FreeBSD 8.1 running code in the example directory.
Is there any os-platform-specific code in ff-rzmq? I noticed some array names "OSX", "Linux" and "Windows" in the source for wrapper.rb. A couple of these have hard-coded paths to library locations. Could this be causing a problem, or is it unrelated?
It's probably just a Ruby installation problem under RVM, but I can't replicate a similar error with any other gems.
--Allan