* src/secmem.c (PROPERLY_ALIGNED_TYPE): Move to ...
* src/semem.h (PROPERLY_ALIGNED_TYPE): ... here.
* src/semem.h (LIKELY, UNLIKELY): Copy definitions
from libgcrypt/src/g10lib.h.
(wipememory2, wipememory)
(fast_wipememory2_unaligned_head, fast_wipememory2): Likewise.
(FASTWIPE_T, FASTWIPE_MULT): Use uint64_t and ULL of C99.