[Freeciv-Dev] semi-quick tile_is_known patch

[Mike Kaufman <mkaufman@xxxxxxxxxxxxxx>]

attached is a patch to move tile_is_known() from map.c to climisc.c
is does this plus add appropriate includes in two files and change a
ptile->known to the function call in mapctrl.c

one caveat: the macro MAP_TILE in the body of tile_is_known() has been
removed. This is because MAP_TILE is defined in map.c rather than map.h
I did not want to move it until I got feedback from the list. yes, this
kind of direct access to map.tiles is not good. So respond with a
suggestion.

This patch is needed to remove ~60k from the civworld patch.

-mike

tile_is_known_patch
Description: Text document