error with make openmpi

I am making the lammps executable and I keep getting the following. What do I do?
Thanks,
Annie

Undefined symbols:
  "_meam_force_", referenced from:
      LAMMPS_NS::PairMEAM::compute(int, int)in pair_meam.o
  "_meam_cleanup_", referenced from:
      LAMMPS_NS::PairMEAM::~PairMEAM()in pair_meam.o
      LAMMPS_NS::PairMEAM::~PairMEAM()in pair_meam.o
  "_meam_setup_done_", referenced from:
      LAMMPS_NS::PairMEAM::coeff(int, char**)in pair_meam.o
  "_meam_setup_global_", referenced from:
      LAMMPS_NS::PairMEAM::read_files(char*, char*)in pair_meam.o
  "_meam_setup_param_", referenced from:
      LAMMPS_NS::PairMEAM::read_files(char*, char*)in pair_meam.o
  "_meam_dens_final_", referenced from:
      LAMMPS_NS::PairMEAM::compute(int, int)in pair_meam.o
  "_meam_dens_init_", referenced from:
      LAMMPS_NS::PairMEAM::compute(int, int)in pair_meam.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[1]: *** [../lmp_openmpi] Error 1
make: *** [openmpi] Error 2
marsdenapple2:src acmarsden$

I am making the lammps executable and I keep getting the following. What do I do?

what OS, processor, fortran and c++ compiler are you using?
have you compiled the MEAM library?
which version of LAMMPS is this?

axel.