#define make_constraint_inactive(sys,cnst) remove_active_constraint(sys,cnst)
static void lmm_var_free(lmm_system_t sys, lmm_variable_t var);
#define make_constraint_inactive(sys,cnst) remove_active_constraint(sys,cnst)
static void lmm_var_free(lmm_system_t sys, lmm_variable_t var);