calloc: depend on stdckdint not xalloc-oversized * lib/calloc.c: Include stdckdint.h, xalloc-oversized.h. (rpl_calloc): Use ckd_mul instead of xalloc_oversized. * modules/calloc-gnu, modules/calloc-posix: (Depends-on): Depend on stdckdint, not xalloc-oversized.