XZ_DYNALLOC
xz_dec = xz_dec_init(XZ_DYNALLOC, (u32)-1);
xz_dec = xz_dec_init(XZ_DYNALLOC, (u32) -1);
xz_dec = xz_dec_init(XZ_DYNALLOC, (u32)-1);
s = xz_dec_init(XZ_DYNALLOC, (uint32_t)-1);
# define DEC_IS_DYNALLOC(mode) ((mode) == XZ_DYNALLOC)