Edited: my own problem, disregard

I've got a problem with API command
addpool. It looks like it always forces username to lowercase. It looks neat, however when using P2P pools and using bitcoin address as a username this is quite a problem.
Version I'm using is
cgminer 4.1.0 (embedded in Terraminer IV). I do not really dare to try to fix this on my own and recompile as it might be tricky to compile for their embedded linux.
Are there any workarounds?