If you receive an error such as:
runcbl: error while loading shared libraries: libctree.so: cannot open shared object file: No such file or directory
Make sure you have the environment variable LD_LIBRARY_PATH (platform specific) set appropriately to access the FairCom DB library, for example:
LD_LIBRARY_PATH=/usr/acucbl610/acugt/bin;
export LD_LIBRARY_PATH