Ld_library_path is an runtime override for the normal library paths defined in the ld.so.conf. in 99% you don't need to override libraries with it. If you compi

Ld_library_path is an runtime override for the normal library paths defined in the ld.so.conf. in 99% you don't need to override libraries with it. If you compile an program for /opt then its common to use rpath or putting the libraries in the directories defined in the FHS