I recently had to get a merb site up and running on a ubunto 9.10 vps.
I haven’t worked with merb before so there was something of a learning curve, but not too much.
Anyway, the site uses image science for image manipulation.
Once I had everything installed , trying to run merb in the application root gave me the following error:
/usr/bin/ld: cannot find -lstdc++
From the trace this seemed to be related to ruby inline.
Anyway, short version is that once I installed libstdc++6-4.4-dev merb was able to start up ok.
I hope this helps someone else out there.