hfree
static void hfree(struct Hist *);
hp->Hnext = np->Hnext, hfree(np);
# define _hfree hfree
uint32_t hsize, hfree;
if (utoppy_get_32(sc, &hsize) || utoppy_get_32(sc, &hfree))
us->us_hdd_free = hfree;
# define _hfree hfree