Code:
LoadLibrary failed on /home/desktop/steamcmd/hlds/./gearbox/dlls/sandbot.so: ./libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /home/desktop/steamcmd/hlds/./gearbox/dlls/sandbot.so)
Looks like that newer version still gives me that error from above on my Xubuntu 14.04 server for OP4CTF. But when I recompiled the src code on my Linux Mint with g++-4.8 it appears to work better. I don't know if your compiler from your Linux Distro or GCC have some missing dependencies.