Enable -fPIC in compiler flags for shared lib builds
Enable -fPIC in compiler flags for shared lib builds


Former-commit-id: f2a74a23bd0128f70466dcd864b3ddbc586b7b14
DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG