Hallo,
I don't know which O/S you are using and how your .dbenv-files looks.
However, as quick work around you could just add the following lines to the end of .dbenv_<hostname>.csh:
unsetenv LD_LIBRARY_PATH
setenv LD_LIBRARY_PATH /usr/sap/IDS/SYS/exe/run:/usr/sap/IDS/SYS/exe/uc/linuxx86_64:/oracle/IDS/102_64/lib:/oracle/client/10x_64/instantclient
Regards,
Thomas.