Version mkgmap-r3871 was committed by gerd on Tue, 28 Mar 2017 merge the if-then branch It brings three changes: 1) It adds if-then-else syntax for styles, might be useful for doing this: if (mkgmap:option:routing=car) then include "inc/car-rules"; end 2) It adds the new option --style-option : --style-option Provide a semicolon separated list of tags which can be used in the style. The intended use is to make a single style more flexible, e.g. you may want to use a slightly different set of rules for a map of a whole continent. The tags given will be prefixed with "mkgmap:option:". If no value is provided the default "true" is used. This option allows to use rules like mkgmap:option:light=true & landuse=farmland {remove landuse} Example: -- style-option=light;routing=car will add the tags mkgmap:option:light=true and mkgmap:option:routing=car to each element before style processing happens. 3) It adds the possibility to add multiple map objects with a singe rule, e.g. two rules using the same expression like junction=roundabout & (highway=trunk | highway=trunk_link) [0x0c road_class=4 road_speed=2 resolution 24 continue] junction=roundabout & (highway=trunk | highway=trunk_link) [0x10801 resolution 18] can be written like this: junction=roundabout & (highway=trunk | highway=trunk_link) [0x0c road_class=4 road_speed=2 resolution 24] [0x10801 resolution 18] http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3871