-extern int mmcheckf(void *md, void (*func) (void), int force);
-
-/* Pick up the current statistics. (see FIXME elsewhere) */
-
-extern struct mstats mmstats(void *md);
-
-extern void *mmalloc_attach(int fd, void *baseaddr);
-
-extern void mmalloc_pre_detach(void *md);
-
-extern void *mmalloc_detach(void *md);
+/* return the heap used when NULL is passed as first argument to any mm* function */
+extern xbt_mheap_t mmalloc_get_default_md(void);