double weight_value,
double bound,
int number_of_constraints);
-void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
+XBT_PUBLIC(void) lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
XBT_PUBLIC(double) lmm_variable_getbound(lmm_variable_t var);