[Freeciv-Dev] Partial generalization of buildings.ruleset

[Tomasz Wegrzanowski <maniek@xxxxxxxx>]

Here is the (prototype) patch that generalizes rules about
  where you can build types of buildings.
There is autohelp support, capability string, and ai understands this patch.
Lighthouse and Magellan are allowed only near Ocean in data/default now.
Patch is splitted data/code.

locationcode.diff.bz2
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locationdata.diff.bz2
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