49fe5d1617
* restored the zone>block stuff * generalized the support for more-than-1-block bitmaps to also deal with big inodes maps in small blocks * improved pexit() to printf-like syntax; also replaced pexit() with err() or errx() where there are no reference to proto lines * unified the allocation of blocks to all use alloc_block() instead of raw malloc half of the time * removed the V2_ d2_ etc. prefixes which are obscure and obsolete While here, also * used new-form definitions, and closer to KNF style in general * used often-built-ins such as mem* or strncpy where relevant * pruned a fair amount of constants which are irrelevant Thanks to Thomas V. and Lionel who did a good amount of work with the cross-compilation stuff and made that change to be much smoother.