hash table size can be set before it is used.
* hash.c: Use an unsigned long type for the size of the hash tables.
* hash.h (set_gas_hash_table_size): Update the prototype.
(gas_hash_table_size): New static variable.
(set_gas_hash_table_size): New function: Records a requested size for the hash tables.
(get_gas_hash_table_size): New function: Return a prime number near the requested size of the hash table.
(hash_new): Use get_gas_hash_table_size.
* hash.h: Add a prototype for set_gas_hash_table_size.
* as.c (show_usage): Add description of new switches: --hash-size and --reduce-memory-overheads.
(option_values): Add OPTION_HASH_TABLE_SIZE and OPTION_REDUCE_MEMORY_OVERHEADS.
(std_longpopts): Add entries for the new options.
(parse_args): Handle the new options.
* Makefile.am: Add a dependency of as.c on hash.h.
* Makefile.in: Regenerate.
* doc/as.texinfo: Document the new switches.
* NEWS: Mention the new switches.
Move bitfield overflow checks to after the md_apply_fix call in
fixup_segment so that md_apply_fix has a chance to modify value.
Handle 8 and 16-bit pcrel relocs for i386.
Prototypes and other minor code cleanups.