This package implements the fix poems command for coupling multiple rigid bodies together. This package uses an external library in lib/poems which must be compiled before making LAMMPS. See the lib/poems/README file and the LAMMPS manual for information on building LAMMPS with external libraries. The settings in the Makefile.lammps file in that directory must be correct for LAMMPS to build correctly with this package installed. The people who created the POEMS library and this fix are Rudranarayan Mukherjee (while at RPI, now at NASA) and Kurt Anderson (RPI).