# define INIT_TRACK_MEMPOOL(header, interp)
#endif
+#ifdef I_MALLOCMALLOC
+/* Needed for malloc_size(), malloc_good_size() on some systems */
+# include <malloc/malloc.h>
+#endif
+
#ifdef MYMALLOC
# define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
#else