/* from surf_instr.c */
void TRACE_surf_alloc (void);
void TRACE_surf_release (void);
-void TRACE_surf_host_declaration (char *name, double power);
-void TRACE_surf_host_set_power (double date, char *resource, double power);
+void TRACE_surf_host_declaration (const char *name, double power);
+void TRACE_surf_host_set_power (double date, const char *resource, double power);
void TRACE_surf_host_define_id (const char *name, int host_id);
void TRACE_surf_host_vivaldi_parse (char *host, double x, double y, double h);
void TRACE_surf_link_declaration (void *link, char *name, double bw, double lat);