Why upgrade? I'm not a lawyer, but here's my take on the differences
to version 2:
* Software patents: better protection against abuse of patents to
prevent users from exercising the rights under the GPL. I doubt
we'll get hit with a patent suit, but it's a good move just on
general principles.
* License compatibility: compatible with more free licenses, i.e. can
"steal" more free software for use in Empire. I don't expect to steal
much, but it's nice to have the option.
* Definition of "source code": modernization of some details for today's
networked world, to make it easier to distribute the software. Not
really relevant to us now, as we normally distribute full source code.
* Tivoization: this is about putting GPL-licensed software in hardware,
then make the hardware refuse to run modified software. "Neat" trick
to effectively deny its users their rights under the GPL. Abuse was
"pioneered" by TiVo (popular digital video recorders). GPLv3 forbids
it. Unlikely to become a problem for us.
* Internationalization: more careful wording, to harden the license
outside the US. The lawyers tell us it better be done that way.
* License violations: friendlier way to deal with license violations.
This has come out of past experience enforcing the GPL.
* Additional permissions: Probably not relevant to us.
Also include myself in the list of principal authors.
other. Ensure headers in include/ can be included in any order
(except for econfig-spec.h, which is special). New header types.h to
help avoid inclusion cycles. Sort include directives. Remove some
superflous includes.
plus one. Users changed. This indirectly fixes off-by-one loop
bounds in budg(), show_sect_build(), show_sect_stats() and
show_sect_capab(). The show bugs were harmless: the loops ran into
the sentinel, which they ignore. The budg bug was serious: the loop
ran into the entries for SCT_EFFIC. This lead to a bogus line in the
budget, printing of a null pointer, and doubled sector build cost.
Budget priorities masked this bug until rev. 1.25.
files item.config, product.config, sect.config, infra.config.
(empfile): Declare the new config files. Reorder table entries so
that read_builtin_tables() reads the config files in the right order.
(bigcity_dchr, opt_BIG_CITY, init_dchr): Remove. Deities can edit
sect.config instead.
member p_effic by sctstr member d_peffic. Tables updated.
(show_sect_capab): Adapted.
(prod_eff): Adapted; requires changing first parameter to sector type.
Callers changed.
(P_MDUST): Remove, because pchr[P_MDUST] now identical to
pchr[P_DUST].
(shp_check_nav, sail_nav_fleet, bigcity_dchr[], sector_navigation[])
(d_navigation): Add a NEW d_navigation enum NAV_CANAL to
indicate that a sector has canal capability. Add canal determination
logic to shp_check_nav(). Update sector_navigation[] with new
canal navigation enum. Use shp_check_nav() to determine the
sector can be navigated.
is confusing.
(bigcity_dchr): Fix initializer for d_maxpop.
(dchr): The previous revision accidentally changed maximum population
of sanctuaries, plains, sea and wasteland. Revert the former two.
The latter are not used, but the new max population of zero makes more
sense, so keep it.
(dchrstr): New member d_maxpop.
(dchr): Initialize it.
(max_pop): Use it. Use dchr[SCT_MINE].d_maxpop when called with null
argument. RES_POP now affects mountains and plains as well.
(nullify_objects, do_desi): Simpify designate restrictions of options
NO_LCMS, NO_HCMS, NO_OIL.
(show_sect_build): Suppress printing of sectors only deity can
designate. This was broken in rev. 1.15.
