I was wondering if anybody knew how the rpm version of libpvfs.so.1.4 was compiled. When I compile the tar.gz version I get. ls: error in loading shared libraries: /home/pcp1/makleske/libpvfs.so.1.4: undefined symbol: When loading libpvfs.so.1.4. I used glibc2_1_2 To build my version I simply did a configure then make. -- Kevin Makles NERSC Future Technologies Group Lawerence Berkeley Laboratory