But honestly what always killed my gentoo was emerge-syncing and then updating world; and also etc-updating my system. After that my net connection was gone and then trying to get it back to work was a pain!!! It's better if you keep track of your installed packages and update them individually
I guess that's the problem with bleeding-edge distros; you always want the latest and greatest!finally: you could also emerge a package called "rpm2targz"; you might have dones so already. If so, you just open a shell in the folder where the codeblocks rpm package resides, type rpm2targz nameofthepackge.rpm and it will create a targz file in the same folder. You can then open and explore it, or uncompress it and see what files you might be missing.
cheers!