/* Returns if the are bonded interactions for free energy calculations */
-bool gmx_mtop_bondeds_free_energy(const gmx_mtop_t *mtop);
+gmx_bool gmx_mtop_bondeds_free_energy(const gmx_mtop_t *mtop);
/* Sort all the bonded ilists in idef to have the perturbed ones at the end
* and set nr_nr_nonperturbed in ilist.