rather than abort with an error, assume -DLAMMPS_SMALLBIG if no define is set

   new LAMMPS-specific functions can be added

*/

/*

 * Follow the behavior of regular LAMMPS compilation and assume

 * -DLAMMPS_SMALLBIG when no define is set.

 */

#if !defined(LAMMPS_BIGBIG) && !defined(LAMMPS_SMALLBIG) && !defined(LAMMPS_SMALLSMALL)

#error Must define LAMMPS_BIGBIG, LAMMPS_SMALLBIG, or LAMMPS_SMALLSMALL

#define LAMMPS_SMALLBIG

#endif

#include <mpi.h>