Can you tell me how you're compiling your Cyrus? Do you start from a brand new clean directory each time?
For a new release yes .... unpack, run configure, and compile. I normally don't do anything else to the code.
The dependency system is not perfect, and those stacktraces really look like there's compilation problems!
I applied the patch to ctl_mboxlist without rebuilding everything, so I've just done a `make clean; make' then installed on two systems, restarted, and then created another core dump by trying an xfer.....
Should I be doing more? Thanks, gdm