This catches output dependency violations, e.g. two threads doing a
read-modify-write without synchronization.
New struct emptypedstr member seqno. Make sure all members of unit
empobj_storage share it. Set it in ef_blank() and ef_set_uid(), step
it in ef_write(). fairland and files don't use ef_set_uid(); need to
set it manually in files.c's main() and file_sct_init().
Factor do_read() out of fillcache() to make it available for
new get_seqno().
Make sure all members of unit empobj_storage share it.
Add matching timestamp member to struct comstr, struct empobj, struct
gamestr, struct lonstr, struct natstr, struct nwsstr, struct trdstr,
struct trtstr. The timestamp isn't yet set for these. To be fixed.
Move the timestamp member to the right place in struct lndstr, struct
loststr, struct realmstr, struct nukstr, struct plnstr, struct sctstr,
struct shpstr.
New struct emptypedstr to avoid depending on empobj.h there.
Remove now superfluous manual initializations elsewhere.
This doesn't fix any missing initializations.
Make sure all members of unit empobj_storage share uid in addition to
ef_type.
Add matching uid member to struct gamestr, struct natstr and struct
sctstr, and set them.
Swap struct empobj members uid and own to make that easier, and update
struct comstr, struct lndstr, struct lonstr, struct loststr, struct
nwsstr, struct nukstr, struct plnstr, struct realmstr, struct shpstr,
struct trdstr, struct trtstr accordingly.
Note that the uid isn't properly set for struct nwsstr, struct lonstr,
struct trdstr, struct comstr and struct loststr. To be fixed.
undocumented feature: When a buyer didn't have enough money at the
time of the trade, the seller *automatically* granted a high-interest,
medium term loan for up to 90% of the price. This is just a silly
trap for unwary sellers and buyers alike.
(N_FIN_TROUBLE, N_CREDIT_JUNK): Unused, remove.
(rpt): Update accordingly.
(empfile): Correctly initialize members cids, csize, fids for all
EFF_STATIC tables except EF_SHIP_CHR, EF_PLANE_CHR, EF_LAND_CHR,
EF_NUKE_CHR, EF_META and the symbol tables.
