Well OSX doesn't support librt and I'm pretty sure Ubuntu 10.04.3 ld is using old-style DSO linking.
I don't see why you cbc needs librt to start with. Does it do any real-time stuff? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org